window heat blocker
Worth a lookShows demand growing >1,000% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Growth
Incredible>1,000%90-day search growth — must beat 0% to launch
Quality gap
Great4.0★avg incumbent rating — lower means beatable quality
Brand share
Great44%top-5 brand share — no brand owns this niche
Returns
Great1.3%return rate — above 5% kills the launch gate
Competition
Good42%top-5 click share — leaders hold, buyers still browse
Price range
Good£5.69–£25.34cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay£10.08avg listing price — sweet spot $15–$100
Review moat
Okay3,717.73avg incumbent reviews — the moat a new listing must climb
Conversion
Bad1.5%search→purchase rate — share of searches ending in a sale
Market size
Bad£28K£28K/yr · 183K searches
According to Flapen's Amazon United Kingdom niche tracking, window heat blocker is a £28K/yr Amazon United Kingdom market (183K searches/yr). The top 5 brands hold 44% of demand. Verdict: Worth a look — 62/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
window heat blocker market data
- Units sold / yr
- 4K–5K
- avg 100–250/product
- Revenue / yr
- £40K–£50K
- units × avg price
- Conversion rate
- 1.5%
- Avg BSR
- #52
- Page quality
- 0%
- Prime
- 85%
- Sponsored
- 88%
- Out of stock
- 2.1%
- Avg brand age
- 33 months
- Avg seller age
- 179 days
Competition & brand share
The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.Brands
34 rising
Sellers
50
Top-5 brand share
44%
Top 20: 88%
Top-5 click share
42%
Top 20: 82%
Open market
50%
- MaximoLife12%
- rabbitgoo11%
- BKSAI9%
- BLOSTM7%
- Bemece6%
- Machine-Ya5%
Top window heat blocker search terms
- window sun blocker46K/yr
- heat reflective window cover33K/yr
- reflective window cover19K/yr
- window heat blocker14K/yr
- sun blocker for window14K/yr
- window sun reflector9K/yr
- heat reflective window blind7K/yr
- heat blocking window cover5K/yr
- sun reflector for window5K/yr
- heat reflective window5K/yr
Top window heat blocker products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
MaximoLife Ultimate 100% Blackout Blind | Fits Any Size/Shape Window | Unique Cutting Grid Easier Cut-to-Size | Industrial-Grade Suction Grip | Heat & Cold Resistant Hook & Loop | No Drill Stick On
MaximoLife£25.344.4★3,300 rev
BKSAI Magnetic Blackout Blinds Window for Bedroom Traceless Removable 100x145cm Any Shape and Size No drilling 12 Magnets Portable Black Out Blinds Curtains Blackout Material Cover
BKSAI£11.174.2★3,124 rev
rabbitgoo Heat Reflective Window Film Privacy Silver 44.5x200cm
rabbitgoo£6.284.1★61,407 rev
BLOSTM Foil Insulation Roll 5m x 60cm - Radiator Reflector Panels
BLOSTM£10.024.6★1,798 rev
Bemece Portable 100% Blackout Blind No Drill Blinds Blackout for Windows Fits Any Size Shape for Bedroom Nursery Loft RV with Strong adhesive and Velcro-200 * 145
Bemece£9.264.4★536 rev
Newest
by launch date
Silver 44.5x200cm wonderffolie Reflective One Way Window Film Privacy Heat Mirror Window Film Anti Glare Sun Blocker UV Window Film Clear See Out Not in for Home Office
wonderffolie£8.333 rev
Blackout Blind 300 x 145 CM Temporary Blackout Blinds Stick on No Drill Blinds for Windows Portable Black Out Blinds Fits Any Size Shape for Bedroom Nursery Baby Sleep Home Office
Bszatan£11.34152 rev
Magnetic Blackout Blind for Windows 100% Blackout Fabric No Drill Window Cover for Roof & Sloped Windows Heat & Sun Protection Removable & Adjustable Indoor & Travel 100x145CM Black
URBZUE£10.73142 rev
rabbitgoo Heat Reflective Window Film Privacy Film for Glass Windows Silver 44.5×200cm One Way Mirror Tint with Tools Static Cling Anti Glare UV Sun Blocker for Home Office
rabbitgoo£6.431,457 rev
Heat Reflective Window Films Thermal Insulation Window Tinting Film with Metal Holes and Suckers Double Sided Aluminium Foil Sheet Attic Door and Roof Cover
Generic£11.9818 rev
Trending
90-day click momentum
Blackout Blind No Drill Installation with 12-Pair Strong Magnets Temporary Light Blocking Shade for Bedroom/Nursery/Skylight/Travel Portable Window Film-Gray
Machine-Ya£10.673.8★
Silver 44.5x200cm wonderffolie Reflective One Way Window Film Privacy Heat Mirror Window Film Anti Glare Sun Blocker UV Window Film Clear See Out Not in for Home Office
wonderffolie£8.332.0★
Magnetic Blackout Blind for Windows 100% Blackout Fabric No Drill Window Cover for Roof & Sloped Windows Heat & Sun Protection Removable & Adjustable Indoor & Travel 100x145CM Black
URBZUE£10.734.0★
Blackout Blind 300 x 145 CM Temporary Blackout Blinds Stick on No Drill Blinds for Windows Portable Black Out Blinds Fits Any Size Shape for Bedroom Nursery Baby Sleep Home Office
Bszatan£11.344.5★
Heat Reflective Window Films 8mm Aluminium Foil Sun Blocking Thermal Insulation Window Stickers Blackout Sun Protection Privacy Glass Film for Sun Room With Suction Cups W×H-40 * 100cm(16 * 39in)
Pxzybd£13.253.8★
What buyers say about window heat blocker
What buyers praise and complain about, mined from review topics.What buyers love
“easy to handle”
“Good quality and stays in place well”
“Good for the money”
“Had no issues installing it”
“Easy fit”
“Just as advertised”
“Very effective”
“Amazing during heatwave”
“It adhered well”
“Great privacy”
What buyers complain about
“Poor adhesion”
“Poor quality”
“Shockingly hot”
“It doesn't work very well either”
“I dont expect them to last forever”
“Didn't cost a lot but it was wasted money”
“it has a very bad chemical smell”
“Not as described”
“Difficult to install”
“Not great didn't give any privacy at all”
Top return reasons
Common questions
- Is window heat blocker profitable to sell on Amazon United Kingdom?
- The niche generates £28K/yr across 40 tracked products. 3 of 9 products launched in the last 360 days are still selling. 90-day search growth is >1,000%. Flapen's verdict: Worth a look (62/100).
- How competitive is the window heat blocker niche?
- 34 brands and 50 sellers compete. The top 5 products take 42% of clicks and top 5 brands hold 44% of demand.
- What do buyers complain about in window heat blocker?
- Top complaints mined from reviews: Adhesion/Stickiness, Quality-Overall, Heating. The return rate is 1.3%.
- What does it cost to enter the window heat blocker niche?
- Listings span £5.69–£25.34; the average listing price is £10.08 (sweet spot $15–$100). The average incumbent carries 3,718 reviews — the moat a new listing must climb.