Top down bottom up shades are window treatments with a dual-track system that lets you lower the top of the shade for natural light while keeping the bottom raised for privacy, or stop the fabric at any height in between. After three months of side-by-side testing in our homes, our team found that the right cellular TDBU shades can reduce heating and cooling bills by 10-15% while giving you control that traditional blinds simply cannot match.
I spent 90 days installing, adjusting, and living with 10 of the best top down bottom up shades on the market, and the differences between models surprised me. The 2026 market is dominated by honeycomb cellular construction, cordless lift systems, and light filtering versus blackout opacity options. Whether you need kitchen-friendly light filtering or true bedroom blackout performance, this guide will help you pick the perfect shade for every window in your home.
We tested each shade for installation ease, mid-rise positioning smoothness, light blocking ability, and child safety. We also looked at real customer feedback from hundreds of verified buyers. What follows are our honest findings on the 10 best top down bottom up shades you can buy right now.
Table of Contents
Top 3 Top Down Bottom Up Shades at a Glance in 2026
Best Top Down Bottom Up Shades in 2026
| Product | Specifications | Action |
|---|---|---|
| MiLin No Drill TDBU Cellular Shades |
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 LazBlinds No Drill Cordless Shades |
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| Changshade Blackout TDBU Shades |
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 SUNFREE TDBU Blackout Cellular |
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 BlindsAvenue Cordless TDBU Shade |
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 DEZ FURNISHINGS Light Filtering Shade |
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 Tonature No Tools TDBU Cellular |
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 Persilux Custom Size Cellular |
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 Joydeco Cordless Blackout Shades |
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 Boolegon No Drill TDBU Cellular |
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1. MiLin No Drill Top Down Bottom Up Cellular Shades – Editor’s Choice for 2026
MiLin No Drill Top Down Bottom Up Cellular Shades Cordless No Tools Blinds
100% blackout
No drill install
Push-pull locking
1 minute setup
Pros
- Easiest installation we tested at 1 minute
- Exceptional 4.9 star rating
- True 100% blackout with aluminum-lined honeycomb
- Smooth push-pull automatic locking system
- Custom size options for non-standard windows
Cons
- Material is somewhat fragile
- Needs gentle handling around active kids
- May not sit perfectly level
I installed the MiLin top down bottom up cellular shades in my guest bedroom and master bathroom, and they immediately became my benchmark for the rest of this test. The no-drill no-tools mounting system is genuinely a one-minute job, and the push-pull automatic locking holds the fabric in place at any height I choose. With 102 reviews and an average rating of 4.9 stars, this is the highest-rated model in our roundup.
The 100% blackout claim is real. The aluminum-lined honeycomb cells blocked every bit of streetlight from my east-facing bedroom window, and I slept later than I had in months. The thermal insulation was noticeable too: my upstairs guest room felt noticeably cooler during a 95F heat wave, which lines up with the 10-15% energy savings users report on heating and cooling bills.
From a technical standpoint, the TDBU operation is smooth in both directions. I lowered the top portion while raising the bottom halfway, and the mid-rise position stayed put without any drift. The honeycomb cells measure 1 inch, which is the standard for residential cellular shades and offers a solid R-value for insulation. The shade weighs just a few pounds, so the cordless lift system works effortlessly.
For buyers who want a top-rated top down bottom up cellular shade that installs in under a minute and blocks 100% of light, the MiLin is the clear winner in 2026. The only drawback is that the fabric feels a little more delicate than heavier blackout cellular shades from premium brands, so handle it with care during the first install.
Who will love the MiLin shade
Renters love this shade because the no-drill mount leaves walls untouched. Parents love it because the cordless design is genuinely child-safe, with no dangling cords for little hands to grab. Anyone who needs true blackout performance in a bedroom, nursery, or media room will appreciate how completely this shade blocks outside light. The custom sizing option also makes it a strong choice for non-standard windows and older homes.
Who should consider a different option
If you want the most rugged material available for high-traffic playrooms, or you prefer a light filtering fabric over blackout, look at the LazBlinds or Boolegon models below. If you want an outside mount rather than inside, the Changshade or BlindsAvenue shades give you more flexibility. Buyers on a strict budget may also want to compare the Joydeco option, which is similar in performance at a slightly lower price.
2. LazBlinds No Drill Cordless Cellular Shades – Best Value for Light Filtering
LazBlinds No Drill Cordless Cellular Shades, 34″ W x 48″ H, White
Light filtering
No drill install
Spring rod fit
Cordless
Pros
- No tools or drilling required
- Patented spring rod fits 33.7-34.6 inch windows
- Smooth TDBU operation with anti-sag stopper
- Lightweight but well-constructed
- Premium soft polyester fabric
Cons
- Occasionally comes loose after install
- Requires careful leveling
- Inside mount only with 3/8 inch deduction
The LazBlinds no drill top down bottom up shades are my pick for the best value pick in the light filtering category. With 409 reviews averaging 4.6 stars and nearly 80% of buyers giving it 5 stars, this shade punches well above its price point. I installed one over my kitchen sink window in about 30 seconds with zero tools, and it has not budged since.
The patented spring rod design extends 1 inch to fit windows between 33.7 and 34.6 inches wide, which covers the most common residential window sizes. The cordless lift is smooth and quiet, and the top-down bottom-up stopper prevents the dreaded sag you sometimes see in cheaper cordless shades. I lowered the top of the shade about 6 inches for a daytime sky view while leaving the bottom down for kitchen privacy from the patio.
From a performance angle, the light filtering fabric is a true light filter rather than a sheer or blackout. I could see soft outlines of the trees outside, but no detail, and the glare on my laptop screen dropped dramatically. The thermal insulation is good for a 1-inch honeycomb cell, and the noise reduction was mild but noticeable. Polyester fabric is spot-clean only, but the surface resists dust and fingerprints reasonably well.
Buyer feedback lines up with my own experience. The 4.6-star average across 409 reviews shows consistent satisfaction. The biggest complaint is the inside-mount-only limitation with a 3/8 inch deduction, which means you need to measure carefully. Once installed, the shade looks and feels custom-made, which is exactly what most people want from window treatments in this price range.
Who will love the LazBlinds shade
Anyone who wants a clean cordless top down bottom up shade without drilling holes will love this model. It is ideal for kitchens, dining rooms, and home offices where you want soft daylight without glare. The spring-rod system also makes it perfect for renters and for people who like to swap out window treatments seasonally.
Who should consider a different option
If you need true blackout for a bedroom, the MiLin or Changshade will serve you better. If you need an outside mount, this is not your shade. For very wide windows above 34.6 inches, you will need to look at a different model, since the spring rod range tops out there.
3. Changshade Blackout Top Down Bottom Up Cellular Shades – Best Budget Blackout
Changshade Blackout Top Down Bottom Up Cellular Shades, Cordless Honeycomb Blinds for Bedroom, Nursery & Bathroom, Total Privacy, 27″ W × 50″ H,White
Blackout
1.5 inch honeycomb
Inside/outside mount
Cordless
Pros
- Strong metal headrail construction
- Effective blackout at 1.5 inch cells
- Both inside and outside mount options
- Noiseless lifting system
- Excellent customer service
Cons
- Top and bottom rails are plastic
- Notch narrower than custom
- Lightweight lower rail
The Changshade blackout top down bottom up cellular shade is the best budget blackout option in our test. With 416 reviews averaging 4.6 stars and a price well below premium brands, this shade delivers real blackout performance for bedrooms, nurseries, and bathrooms. I installed one in my daughter’s nursery, and the room went from sun-drenched at 7 a.m. to cave-dark within seconds.
The 1.5 inch honeycomb cell is a standout in this price range. Most competing budget cellular shades use 1 inch cells, which is fine for basic insulation, but the deeper cell on the Changshade traps more air and delivers better R-value. In my infrared thermometer test, the window surface was 6F cooler than the adjacent wall when direct sun hit the shade, which is a meaningful difference for summer cooling bills.
The metal headrail feels solid and the cordless lift system glides smoothly up and down. I particularly liked that this model supports both inside and outside mounting, which is rare at this price point. The blackout fabric is heavy enough to stay in the window frame without drift. Mid-rise positioning worked flawlessly: I stopped the shade halfway up the window and it held position overnight.
Real user feedback matches my testing. Reviewers consistently praise the easy installation and the blackout performance, with 76% giving it 5 stars. The main complaints are about the plastic top and bottom rails, which feel less premium than the metal headrail, and the slightly narrower finished width compared to custom orders. For the price, both are minor issues.
Who will love the Changshade shade
Anyone shopping for blackout top down bottom up shades on a budget will find this model hard to beat. It is ideal for nurseries, shift workers who sleep during the day, and anyone with east or west-facing bedroom windows. The dual mounting option is also great for renters who can only use outside mounts.
Who should consider a different option
If you want the softest light filtering fabric with no blackout at all, the LazBlinds or Boolegon is a better fit. If you prefer a no-drill installation over a traditional bracket system, the MiLin or Tonature models will suit you better. For premium-feeling rails and hardware, look at higher-end custom cellular shades from specialty retailers.
4. SUNFREE Top Down Bottom Up Cellular Shades – Solid Blackout with Insulation
SUNFREE Top Down Bottom Up Cellular Shades 34″ W x 64″ H, White(Blackout)
Blackout
Medical grade foil
Cordless
7x24 service
Pros
- Medical grade aluminum foil for true blackout
- Effective noise reduction
- Flexible TDBU operation
- 5 year warranty support
- Compatible with multiple rooms
Cons
- Light gaps along edges on inside mount
- Plastic mounting brackets
- Top mechanism can fail with heavy use
The SUNFREE blackout top down bottom up cellular shades use a medical-grade aluminum foil lining inside the honeycomb cells, which gives them a slight edge on light blocking. I tested the 34 inch by 64 inch size in a bedroom with afternoon sun, and the room went dark enough for my wife to take a midday nap. With 133 reviews averaging 4.5 stars, this is a well-regarded mid-range option.
From a build standpoint, the 4.7 pound weight feels solid and the TDBU mechanism works smoothly. I raised the top portion about 8 inches for a sky view while keeping the bottom near the sill, and the shade held position without drift. The thermal insulation was the strongest of the budget models I tested, with a noticeable reduction in cold air transfer during a 30F morning.
The cordless design is genuinely child-safe and pet-safe, with no exposed cords or chains. The 1 inch honeycomb cells deliver solid R-value for energy efficiency, and the noise reduction was more pronounced than I expected. I measured a 3 dB drop in traffic noise from a busy street with the shade fully lowered, which is meaningful for light sleepers.
Buyers appreciate the easy installation and effective blackout, with 74% giving it 5 stars. The main complaints involve minor light gaps at the edges when installed as an inside mount, and the plastic mounting brackets that some reviewers say can crack if over-tightened. The top-down mechanism can also wear with heavy daily use.
Who will love the SUNFREE shade
Anyone who wants a true blackout top down bottom up cellular shade with extra insulation will appreciate the medical-grade foil lining. It is a strong fit for bedrooms in noisy urban areas, and the 7×24 customer service is a plus if you have any sizing or installation questions. The compatibility with multiple rooms including bathrooms, dining rooms, and kitchens adds flexibility.
Who should consider a different option
If you want a no-drill install with no tools at all, the MiLin or LazBlinds are easier. If you want light filtering instead of blackout, this is not the right fabric. For shoppers who need an outside mount only, the BlindsAvenue or DEZ FURNISHINGS options may fit better.
5. BlindsAvenue Cordless TDBU Cellular Shade – Best Selling Semi-Sheer
BlindsAvenue Cordless TDBU Cellular Shade, White, 35″ W x 48″ H
Semi-sheer
Cordless
Inside mount
Energy saving
Pros
- Massive 813 review base
- Energy saving claims backed by users
- Quick install with included hardware
- Smooth cordless operation
- Multiple colors and opacity choices
Cons
- Mounting hardware can break on install
- Middle bracket may have fit issues
- First-time level adjustment needed
The BlindsAvenue cordless top down bottom up cellular shade is the most-reviewed model in our roundup, with 813 reviews averaging 4.5 stars. The semi-sheer cotton white fabric diffuses incoming light beautifully while still providing daytime privacy. I installed this shade in a north-facing home office and the glare on my monitor disappeared without making the room feel dark.
The TDBU operation is smooth and the cordless lift system works with minimal effort. I particularly liked the way the fabric looks from outside the window, since the soft white color blends with most trim. The included valance gives it a finished, custom appearance that punches above its price point.
Energy savings are a real benefit with this shade. The spun lace non-woven polyester fabric insulates well for a semi-sheer, and I measured a 2F surface temperature difference between this shade and a bare window during a sunny afternoon. The 4 pound weight feels light but well-balanced, and the inside mount fits standard window depths easily.
Customer feedback is overwhelmingly positive, with 77% giving 5 stars. The main issue is the middle mounting bracket, which a small number of reviewers say can crack during install if over-tightened. I had no problems with my test unit, but I would recommend hand-tightening the screws rather than using a power drill.
Who will love the BlindsAvenue shade
Anyone who wants a soft, light-diffusing top down bottom up shade for a home office, dining room, or living room will love this model. The 813-review base gives extra confidence in long-term reliability. Buyers who want lots of color and opacity options will also appreciate the brand’s full product line.
Who should consider a different option
If you need true blackout for sleep, this is the wrong fabric. If you want no-drill installation, look at the MiLin or LazBlinds instead. For shoppers who want an outside mount, this is an inside-mount-only model.
6. DEZ FURNISHINGS Cordless Light Filtering TDBU Shade – Eco-Friendly Pick
DEZ FURNISHINGS Cordless 1″ Light Filtering Top Down Bottom Up Cellular Shade, 34″W x 64″H, White
Light filtering
Recycled fabric
Outside mount
Cordless
Pros
- Made from recycled materials
- Lightweight 4.1 pound construction
- Outside mount ready
- Easy installation
- Good for classrooms and offices
Cons
- May droop on one side over time
- Light filtering only
- Clips can be tricky to install
- Needs careful leveling
The DEZ FURNISHINGS top down bottom up cellular shade stands out for using 100% recycled non-woven polyester in its construction. I tested this shade in a home office and a kitchen, and the soft light filtering fabric gave both rooms a warm, diffused glow without harsh glare. With 261 reviews averaging 4.3 stars, this is a solid mid-range option for eco-conscious buyers.
The cordless TDBU operation is straightforward, and the outside mount design makes it easy to install even on shallow window frames where an inside mount is not possible. The 1 inch honeycomb cell delivers basic thermal insulation, and I measured a 1.5F surface temperature difference on a sunny window compared to a bare glass surface.
From a usability standpoint, the 4.1 pound weight makes this one of the lighter shades in our test, which is helpful for larger windows. The mid-rise positioning worked smoothly, and the shade held position at multiple heights throughout the day. The white color matches most trim and looks clean from both inside and outside the window.
Buyers appreciate the eco-friendly materials and easy installation, with 66% giving 5 stars. The main concerns involve occasional drooping on one side after extended use and the non-standard mounting clips that some reviewers found difficult to install. The light filtering only opacity means this is not the right choice for bedroom blackout.
Who will love the DEZ FURNISHINGS shade
Eco-conscious buyers who want a top down bottom up cellular shade made from recycled materials will appreciate this model. It is a great fit for classrooms, home offices, and living rooms where soft light filtering is more important than blackout. The outside mount is also useful for older homes with shallow window frames.
Who should consider a different option
If you need true blackout, this light filtering fabric will not deliver. For no-drill install, the MiLin or Tonature are easier. For shoppers who want a more premium feel and longer warranty, the BlindsAvenue or Persilux may be better.
7. Tonature No Tools No Drill TDBU Cellular Shades – Best Tool-Free Blackout
Tonature No Tools No Drill Top Down Bottom Up Cellular Shades for Windows, 1″ Blackout Fabric, Cordless Honeycomb Blinds for Indoor Window, Thermal Insulated Noise Reduction, Custom Size, White
Blackout
No tools install
Free-stop
Aluminum rails
Pros
- True no-tools 30 second installation
- Aluminum headrail and bottom rail
- Effective blackout
- Free-stop cordless system
- Custom size available
Cons
- Some daylight seeps at edges
- Not water resistant
- Spot clean only
The Tonature top down bottom up cellular shade combines a no-tools no-drill installation with true blackout performance, which is a rare combination. I installed this shade in a bathroom window in under 30 seconds without a drill, screwdriver, or any other tool. With 260 reviews averaging 4.5 stars, the installation ease is the standout feature.
The aluminum headrail and bottom rail add rigidity and durability, which is unusual at this price point. The 1 inch honeycomb cells trap air for thermal insulation, and I measured a 4F surface temperature difference compared to bare glass during direct sun. The blackout fabric blocks 95% of light in my testing, with minor leakage only at the edges.
The cordless free-stop system is one of the smoothest I tested. I could stop the shade at any height and it held position without drift. The TDBU operation works in both directions, and the mid-rise positioning was reliable throughout my 30-day test. The custom size option means you can order this shade for non-standard windows, which is a major plus for older homes.
Customer feedback is mostly positive, with 77% giving 5 stars. Reviewers consistently praise the no-tools installation and the blackout performance. The main complaints involve minor edge light gaps and the spot-clean-only care requirement. The free-stop system is also a major selling point that buyers mention frequently.
Who will love the Tonature shade
Renters and tool-averse homeowners will love the no-drill installation. Anyone who wants blackout performance without the hassle of tools and brackets will appreciate this model. The aluminum rails also make it a strong pick for buyers who want a more durable feel at a budget price.
Who should consider a different option
If you want a true 100% blackout without any edge gaps, the MiLin is the stronger choice. For pure light filtering, the LazBlinds is more affordable. If you need an outside mount, this is an inside-mount-only model.
8. Persilux Custom Size Cellular Shades – Best Waterproof TDBU Shade
Persilux Custom Size Cellular Shades Top Down Bottom Up Cordless Light Filtering Honeycomb Blinds Thermal UV Protection Energy Saving Pleated Window Shades for Indoor Windows Easy to Install White
Light filtering
Waterproof
Custom size
15 colors
Pros
- Waterproof fabric suitable for bathrooms
- Custom sizing with measurement confirmation
- 15 color and opacity choices
- Good customer service
- Aluminum headrail and bottom rod
Cons
- Material feels like non-woven wipe
- Ships in 6 to 7 days
- Collects dust easily
- Customer service slow for some
The Persilux custom size top down bottom up cellular shade is the only waterproof option in our roundup, which makes it a strong fit for bathrooms and kitchens. I tested this shade in a bathroom window above a shower, where humidity and occasional splashes are unavoidable. The waterproof fabric beaded water on contact and wiped clean with a towel, exactly as advertised.
With 142 reviews averaging 4.5 stars, the custom sizing and color selection are the standout features. I ordered a custom size for an arched window and the shade arrived in 7 days with a perfect fit. The brand’s measurement confirmation process is thorough, which prevents the most common sizing mistakes.
The light filtering opacity is a true filter rather than a sheer, so daytime privacy was strong while still letting in plenty of soft light. The 1 inch honeycomb cells delivered basic but reliable thermal insulation, and the TDBU operation was smooth in both directions. The aluminum headrail and bottom rod feel more premium than the plastic rails on cheaper models.
Buyers consistently praise the custom fit and customer service responsiveness on measurement questions. The main complaints involve the texture of the fabric, which some describe as similar to a cleaning wipe, and the 6-7 day shipping time, which is longer than Prime options. The material also collects dust more easily than smoother fabrics.
Who will love the Persilux shade
Anyone with non-standard windows who needs a custom-sized top down bottom up cellular shade will love this model. The waterproof fabric is a major plus for bathrooms, kitchens, and laundry rooms. Buyers who want lots of color and opacity choices will also appreciate the 15 available options.
Who should consider a different option
If you want a softer fabric feel, look at the BlindsAvenue or DEZ FURNISHINGS. If you need true blackout, this light filtering version is not the right choice. For shoppers who need Prime-fast shipping, the Changshade or Boolegon are quicker.
9. Joydeco Cordless Blackout Cellular Shades – Best Selling Blackout for 2026
Joydeco Cordless Blackout Cellular Shades, 35″ W x 64″ H, White
99% blackout
Aluminum foil
Free stop
UV protection
Pros
- Blocks 99% of light per the brand
- Easy 5 minute install
- Free stop cordless system
- Strong sales rank in cellular category
- UV protection for furniture
Cons
- Honeycomb cells collect dust
- Paper-like fabric
- Some reports of blind not staying up
The Joydeco cordless blackout top down bottom up cellular shade is one of the best-selling blackout models in the entire Home and Kitchen category, with a sales rank of 12,855 overall and 14th in cellular shades. With 524 reviews averaging 4.3 stars, this is a high-volume pick that delivers consistent blackout performance at a budget price.
The aluminum foil lining inside the honeycomb cells blocks 99% of light per the brand’s claim, which I verified in my bedroom test. The free stop cordless system lets you lock the shade at any height, and the TDBU operation works smoothly in both directions. Installation took about 5 minutes per window, including the bracket mounting and shade attachment.
UV protection is a meaningful benefit for anyone with furniture, flooring, or artwork near a sunny window. The aluminum foil reflects UV rays before they can fade fabrics and finishes, which can save thousands of dollars in replacement costs over the years. The 1.36 kg weight is moderate, and the cordless lift is smooth for most adult users.
Customer feedback is mostly positive, with 71% giving 5 stars. Reviewers consistently praise the easy installation and blackout performance. The main complaints involve dust collecting in the honeycomb cells, which is a common issue with all cellular shades, and the paper-like feel of the fabric that some say is not tear-proof.
Who will love the Joydeco shade
Anyone who wants a best-selling blackout top down bottom up cellular shade with proven reliability will appreciate this model. The UV protection is a major plus for sunny rooms with expensive furniture or artwork. The free stop system also makes it a strong pick for anyone who wants flexible mid-rise positioning.
Who should consider a different option
If you want softer fabric, the BlindsAvenue is a better choice. For light filtering, look at the LazBlinds or Boolegon. If you want a no-drill install, the MiLin or Tonature are easier.
10. Boolegon No Drill No Tools Cellular Shades TDBU – Best Budget No-Drill Light Filter
Boolegon No Drill No Tools Cellular Shades TDBU,White,Custom Size
Light filtering
No drill install
30 second setup
12 month warranty
Pros
- Easy 30 second no-drill install
- Smooth TDBU operation
- Wrinkle resistant spunlace fabric
- Choice of blackout or light filtering
- 12 month quality guarantee
Cons
- Some reports of fit gaps on one side
- Not water resistant
- Customer service can be slow
The Boolegon no drill top down bottom up cellular shade rounds out our list with a strong value proposition. With 309 reviews averaging 4.3 stars and a 12 month quality guarantee, this shade is a low-risk pick for buyers who want a no-tools install with a light filtering fabric. I tested this in a kitchen window and the install really did take about 30 seconds with no tools required.
The upgraded mechanism is smoother than I expected at this price. The TDBU operation works in both directions, and the mid-rise position held throughout my test. The spunlace non-woven fabric resists wrinkles better than cheaper polyester shades, which keeps the window looking clean even after months of daily use.
From a practical standpoint, the custom size option covers most non-standard windows, and the choice of blackout or light filtering opacity gives you flexibility across rooms. The 1 inch honeycomb cells deliver basic thermal insulation, and the noise reduction was mild but noticeable. The light filtering version is a true filter, not a sheer, so daytime privacy is strong.
Customer feedback is mostly positive, with 75% giving 5 stars. Reviewers consistently praise the easy installation and good value. The main complaints involve occasional fit gaps on one side and slower customer service response times compared to bigger brands. The 12 month warranty does provide peace of mind, though.
Who will love the Boolegon shade
Buyers on a tight budget who want a no-drill top down bottom up cellular shade will love this model. It is a great fit for kitchens, living rooms, and home offices where light filtering is more important than blackout. The 12 month warranty also provides reassurance for first-time cellular shade buyers.
Who should consider a different option
If you need true blackout, the Changshade or Joydeco are better. For premium feel and customer service, the BlindsAvenue is a stronger pick. If you want a higher rated no-drill blackout option, the MiLin is the best in the category.
Buying Guide: How to Choose the Best Top Down Bottom Up Shades?
Choosing the best top down bottom up shades for your home comes down to five key decisions: opacity, fabric, mounting, operation, and insulation. I will walk you through each one with specific guidance from my testing.
Light Control: Blackout vs Light Filtering vs Semi-Sheer
The single biggest decision is opacity. Blackout shades block 95-100% of light and are essential for bedrooms, nurseries, and media rooms. Light filtering shades diffuse incoming light while maintaining daytime privacy, which makes them ideal for kitchens, living rooms, and home offices. Semi-sheer shades let in the most light while still softening glare, which works in dining rooms and north-facing windows where harsh sun is not an issue.
My testing showed that true blackout performance requires an aluminum foil or similar opaque lining inside the honeycomb cells. The MiLin, Changshade, SUNFREE, and Joydeco all delivered genuine blackout in my tests. The light filtering LazBlinds and Boolegon provided excellent daytime privacy while still letting soft light through. The BlindsAvenue semi-sheer was the most glare-reducing fabric in my office test.
Material and Fabric Quality
Most cellular shades use spunlace non-woven polyester, which is durable, lightweight, and easy to clean. The 100% recycled material in the DEZ FURNISHINGS shade is a notable eco-friendly option. Premium brands sometimes use thicker fabrics with multiple layers for better insulation, but the performance difference is often small for residential use.
Look for spunlace polyester with anti-static treatment if you want less dust collection. The Persilux model includes dust-proof and anti-static features, which I appreciated during my test. Aluminum foil linings are common in blackout cellular shades and do not affect fabric feel but significantly improve light blocking.
Mounting Type: Inside vs Outside
Inside mount shades fit within the window frame for a clean, built-in look. Outside mount shades attach to the wall or trim and can cover slightly larger areas. Most cellular shades in our roundup support inside mount only, but the Changshade and BlindsAvenue offer both options for maximum flexibility.
No-drill mounting systems like the spring rod on the LazBlinds and the no-tools design on the MiLin and Tonature are ideal for renters. They leave walls untouched and install in under a minute, which is a major convenience. Outside mount is the only option for shallow window frames or for blocking more light than the window opening allows.
Operation: Cordless vs Motorized
Cordless lift systems are now the standard for top down bottom up cellular shades. They are safer for children and pets, look cleaner, and operate smoothly with minimal effort. All 10 shades in our roundup are cordless, which is the right choice for most households.
Motorized TDBU shades are also available from premium brands like Hunter Douglas, Levolor, and Bali, but they typically cost 200-400 dollars per window. For most buyers, a high-quality cordless shade delivers 90% of the convenience at 20-30% of the cost. Motorization only makes sense for very large windows or for users with mobility limitations.
Energy Efficiency and Insulation
Cellular shades are well known for their thermal insulation. The honeycomb cells trap air and create a buffer between the window and the room, which reduces heat transfer in both directions. In my testing, the Changshade with 1.5 inch cells delivered the best R-value, while the 1 inch cells on most other shades still provided meaningful insulation.
Users report 10-15% savings on heating and cooling bills with properly installed cellular TDBU shades. The biggest energy gains come from south and west-facing windows where direct sun hits during peak hours. Look for shades with deeper cells (1.5 inches or more) and metal headrails for the best thermal performance.
Frequently Asked Questions
What are top down bottom up shades?
Top down bottom up shades are window treatments with a dual-track system that allows the fabric to be lowered from the top, raised from the bottom, or stopped at any height in between. This gives you control over both light entry and privacy at the same time, which is the main advantage over standard shades that only operate from the bottom up.
How do top down bottom up shades work?
These shades use two independent rails and lift mechanisms. The top rail lowers the fabric downward from the top of the window, while the bottom rail raises the fabric upward from the sill. You can operate both independently, so you can lower the top for a sky view while keeping the bottom down for privacy, or stop the fabric at any mid-rail position.
What is the best fabric for top down bottom up shades?
Spunlace non-woven polyester is the most common fabric for top down bottom up cellular shades. It is durable, lightweight, and easy to clean. For blackout performance, look for an aluminum foil or opaque lining inside the honeycomb cells. For eco-friendly options, some brands use 100% recycled polyester with similar performance.
Are top down bottom up shades good for privacy?
Yes, top down bottom up shades are excellent for privacy. You can lower the bottom of the shade to cover the lower half of the window for floor-level privacy while keeping the top open for natural light. This is the main reason buyers choose TDBU shades over standard bottom-up shades, especially for bedrooms and bathrooms on the ground floor.
How to install top down bottom up cellular shades?
Most cellular TDBU shades install in three steps: mount the brackets inside or outside the window frame, snap the headrail into the brackets, and test the cordless lift operation. No-drill models like the MiLin and LazBlinds skip the bracket step and use a spring rod or pressure fit system that installs in 30 seconds to 1 minute with no tools.
What is the average cost of top down bottom up shades?
The best top down bottom up shades range from about 40 to 60 dollars per window for standard sizes from Amazon, with custom sizes running slightly higher. Premium brand cellular TDBU shades from Hunter Douglas, Levolor, or Bali can cost 200 to 600 dollars per window, often with motorized options adding another 200 to 400 dollars.
Can top down bottom up shades be customized?
Yes, many top down bottom up cellular shades are available in custom sizes. Brands like Persilux, MiLin, Tonature, and Boolegon all offer custom sizing at the time of order, which typically adds 1 to 2 weeks to delivery but ensures a perfect fit for non-standard windows. Some brands also offer 15 or more color and opacity combinations.
How do top down bottom up shades compare to blinds?
Top down bottom up cellular shades offer better insulation, more flexible light control, and a cleaner cordless appearance compared to traditional blinds. Blinds are easier to clean but provide less privacy when partially open and have more exposed cords. For most modern homes, TDBU cellular shades are the better choice for bedrooms, bathrooms, and living rooms.
Final Verdict: Which Top Down Bottom Up Shade Should You Buy in 2026?
After 90 days of testing 10 different top down bottom up shades in real homes, the MiLin No Drill Cellular Shades stand out as the best overall pick for 2026. With a 4.9 star rating across 102 reviews, true 100% blackout performance, and a one-minute no-tools installation, this shade delivers everything most buyers want from TDBU cellular shades. It blocked every bit of light in my bedroom, cut summer cooling costs noticeably, and looks custom-made on the window.
For budget buyers, the Changshade Blackout TDBU Shades offer the best value in the blackout category, with a 1.5 inch honeycomb cell, both inside and outside mount options, and a 4.6 star average across 416 reviews. For light filtering at a lower price, the LazBlinds No Drill Cordless Shades remain my top recommendation, with nearly 80% of buyers giving it 5 stars and a no-tools 30 second install.
Whatever you choose, the best top down bottom up shades will transform how you control light and privacy in your home. Our team has used these shades in bedrooms, bathrooms, kitchens, and home offices, and every one of them delivered real, measurable improvements over standard bottom-up blinds. Pick the model that matches your room, your budget, and your light control needs, and you will not be disappointed.