
Cat Flap Installation in London, Kent, & South East.
Luxury Cat Flaps and Pet Doors Fitted with Precision
The Cat Flap Co.
Welcome to our family-run pet door service! We install cat flaps and pet doors in glass, brick, and PVC — with expert care, a friendly touch, and a focus on happy pets and owners.
About Us & What We Do
About Us – The Cat Flap Co.
At The Cat Flap Co., we believe pets deserve freedom — and owners deserve peace of mind.
We’re a small, family-run business providing expert cat flap and pet door installations across London, Kent, Essex, and the South East. We’ve worked in everything from city flats to countryside cottages — always with a friendly, tidy, and pet-first approach.
What We Do
Meet the Faces Behind the Flaps
We specialise in:
• Installing cat flaps into double-glazed glass (custom-made sealed units)
• Fitting flaps into brick walls and insulation
• Installing in uPVC doors, wooden doors, and patio glass
• Offering clean, secure installs by professional fitters
• Providing free advice on flap types and sizing
We’re also qualified glaziers, so we can quote for:
• Window and door replacements
• Custom glass panels for flaps
• Additional glazing work at the same time as your flap fitting

Hi, I'm Kerry — founder of The Cat Flap Co. and proud dog mum to Diva and Nova, my two French Bulldogs. They’re part of the team and a daily reminder of how important secure, pet-friendly spaces really are.
Every cat flap installation is designed with real pets in mind — safe, clean, and built to make life easier for both animals and owners. From wall installs to glass pet doors, we keep it practical and personal.
You’ll spot Diva and Nova across our pages — because let’s be honest, you’d probably rather see their beautiful faces than mine!
Glazing & Home adjustments for Pet Owners
Whether you're upgrading your windows, ordering new bifold doors, or replacing old glass, we offer expert glazing services tailored for homes with pets. From cat flap-ready double glazing to structural adjustments, we make life easier for pet owners — without compromising style or quality.

Cat Flaps in double glazing - Done Properly
We supply and install sealed, toughened double-glazed units with pre-cut holes for cat flaps and pet doors. No risky drilling, no bodged jobs — just safe, clean glass installed by a qualified glazier. We make it easy to upgrade your doors or windows without compromising safety or finish.
✔️ Bifold and patio door compatible
✔️ Bespoke units cut to order
✔️ Cat flaps fitted same day (when glass is ready)

Raised Doors, Windows & Small Adjustments
Some properties need minor structural tweaks to get the best result. Whether it's raising a door threshold to suit a flap or adjusting a window for easier pet access, we provide tidy, made-to-measure solutions that keep your home looking sharp.
✔️ Raise or reposition existing doors
✔️ Lower or adapt panels for step-throughs
✔️ Perfect for cats, small dogs, or aging pets needing easier entry
Repairs, Brickwork & Access Improvements
We also carry out light building work linked to pet access — from tidying up old installations to repairing wall cut-outs or adding pet-friendly external steps. Every job is left clean, neat, and secure, with safety always a top priority.
✔️ Repair or replace poor-quality previous work
✔️ Brickwork around flaps or blocked openings
✔️ Custom outdoor steps or wall-mounted pet stairways
Planning New windows, a new front or back door Bifolds or French doors?
Speak to us before you order — we’ll help you plan the right glass for cat flap compatibility.
Wev'e been known to offer Cat Flap installation free with larger glazing jobs.
Reasons to avoid Dodgy Dave - Handy Man



Before
Poor Quality brick wall cat flap fitted by another installer

Repaired install with new custom tunnel & sealed finish
After
Seen something like this at your property?
Call us to make it right — or better yet, let us do it properly from the start.