cat flap for glass doors
Skip itA small market ($48K/yr) — this niche doesn't clear our bar today.
Avg price
Incredible£25.92avg listing price — sweet spot $15–$100
Price range
Great£5.83–£83.07cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Competition
Good46%top-5 click share — leaders hold, buyers still browse
Conversion
Good4.8%search→purchase rate — share of searches ending in a sale
Returns
Okay3.7%return rate — above 5% kills the launch gate
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Review moat
Okay3,569.55avg incumbent reviews — the moat a new listing must climb
Growth
Bad-15.8%90-day search growth — must beat 0% to launch
Market size
Bad£48K£48K/yr · 39K searches
According to Flapen's Amazon United Kingdom niche tracking, cat flap for glass doors is a £48K/yr Amazon United Kingdom market (39K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 45/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
cat flap for glass doors market data
- Units sold / yr
- 2K–2K
- avg 0–100/product
- Revenue / yr
- £39K–£52K
- units × avg price
- Conversion rate
- 4.8%
- Avg BSR
- #140
- Page quality
- 0%
- Prime
- 93%
- Sponsored
- 97%
- Out of stock
- 8.3%
- Avg brand age
- 56 months
- Avg seller age
- 200 days
Competition & brand share
The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.Brands
14 rising
Sellers
57
Top-5 brand share
86%
Top 20: 100%
Top-5 click share
46%
Top 20: 89%
Open market
11%
- Cat Mate64%
- PetSafe13%
- Petoasis3%
- Fdit3%
- ZIKEBTUY3%
- Pet Mate2%
- Open — no brand owns it (8 brands, 11%)
Demand & seasonality
Weekly Amazon search volume, last 87 weeks — -15.8% search growth over the last 90 days.Peak months: Sep, Oct, Nov · busiest ÷ quietest = 1.9×
Top cat flap for glass doors search terms
- cat flap for glass doors15K/yr
- cat mate cat flap14K/yr
- window cat flap6K/yr
- catmate cat flaps4K/yr
Top cat flap for glass doors 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
Cat Mate 4-Way-Locking Glass Fitting Cat Flap (210) - Secure Lockable Door for Small to Medium Sized Cats for Glass UPVC and Wood White
Cat Mate£16.464.6★2,131 rev
Cat Mate 4-Way-Lock Flap with Liner to 50mm for Small & Average Cats White
Cat Mate£13.574.6★5,642 rev
Cat Mate Microchip Activated Cat Flap (360) - For Cats and Small Dogs Accommodates up to 30 Pets for Single/Multiple glazing UPVC walls and Wood White
Cat Mate£42.594.3★5,208 rev
Cat Mate 4-Way-Locking Cat Flap for Small to Average-Sized Cats White
Cat Mate£10.504.5★2,684 rev
Cat Mate Secure Locking Large Glass & Wall Fitting Cat Flap White
Cat Mate£21.734.6★571 rev
Newest
by launch date
Window Pet Door Adjustable to Fit Window Aluminum Frame Cat Door for Window Quick Install with No Damage Window sill cat flap (S)
ZIKEBTUY£63.861 rev
Cat Mate 4-Way-Locking Glass Fitting Cat Flap (210G) - Secure Lockable Door for Small to Medium Sized Cats for Glass UPVC and Wood Grey
Cat Mate£15.97571 rev
Compact Cat Door for Window Fits 27-32 Width Windows Quick Install with No Damage Aluminum Frame Pet Door for Window Cat Window Door Insert with Tight Seal 4 Lock Modes to Control Pet Access
Petoasis£83.07114 rev
Lessmon Cat Door Flap For Interior Exterior Doors Outer 7.76x7.5x0.78in M
Lessmon£8.36866 rev
Cat Flap for Glass Doors 4 Way Locking Pet Door Microchip for Cats Lockable Small Dog Window Gate Round Clear Flap Door for Interior Exterior Doors Cats Up to 6 kg
Ejoyous£17.3019 rev
Trending
90-day click momentumWindow Pet Door Adjustable to Fit Window Aluminum Frame Cat Door for Window Quick Install with No Damage Window sill cat flap (S)
ZIKEBTUY£63.864.0★
PetSafe Microchip Cat Door - Exterior or Interior Cat Flap - Multi-User RFID Access for up to 40 Pets - 4-Way Locking Weatherproof DIY Easy Install - White
PetSafe£50.444.1★
BeeGo Window Restrictor for UPVC Windows Child Proofing & Cat Window Guard | Self-Adhesive No-Drill Window Lock | No Tools Required (White)
beego£8.154.4★
Cat Mate Microchip Activated Cat Flap (360) for Cats & Small Dogs. Brown
Cat Mate£44.324.1★
Compact Cat Door for Window Fits 27-32 Width Windows Quick Install with No Damage Aluminum Frame Pet Door for Window Cat Window Door Insert with Tight Seal 4 Lock Modes to Control Pet Access
Petoasis£83.074.5★
What buyers say about cat flap for glass doors
What buyers praise and complain about, mined from review topics.What buyers love
“fairly straightforward to fit”
“Excellent product”
“Easy to use”
“Good price”
“Does what is says it will do”
“easy to set-up”
“Good and strong”
“seems very durable”
“instructions were clear”
“And my cats just love it, and also, it's easy to install”
What buyers complain about
“malfunctioning”
“they are struggling to get used to it.”
“Poor stick quality”
“they blamed the installer”
“when it arrived the door was tiny”
“awful instructions”
“Stopped working after a week”
“not sticky enough”
“Cat escaped 7.5 hours after installing it”
“We brought a more expensive one that is another brand”
Top return reasons
Common questions
- Is cat flap for glass doors profitable to sell on Amazon United Kingdom?
- The niche generates £48K/yr across 29 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is -15.8%. Flapen's verdict: Skip it (45/100).
- How competitive is the cat flap for glass doors niche?
- 14 brands and 57 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 86% of demand.
- What do buyers complain about in cat flap for glass doors?
- Top complaints mined from reviews: Functionality-Overall, Ease Of Use, Quality-Overall. The return rate is 3.7%.
- When does demand for cat flap for glass doors peak?
- Demand peaks in Sep–Oct–Nov; the busiest month runs 1.9× the quietest.
- What does it cost to enter the cat flap for glass doors niche?
- Listings span £5.83–£83.07; the average listing price is £25.92 (sweet spot $15–$100). The average incumbent carries 3,570 reviews — the moat a new listing must climb.