No more 3am scratching. No more standing in the cold, door open, calling their name. A cat flap gives your best friend their own way home — and gives you back your sleep. Fitted neatly and securely into glass, double glazing or any door, by London's shopfront and glazing specialists.
Cats are happiest when the choice is theirs — to slip out and patrol the garden at dawn, then curl up inside when the rain comes. A cat flap hands them that freedom, and quietly hands you your evenings back.
No more being a doorman at all hours. No more worrying whether they're stuck outside while you're at work or away for the weekend. A flap means more exercise and less boredom for your cat, fewer accidents indoors, and a calmer, happier household — for everyone with paws and without.
A cat flap in glass is a glazing job, not an odd job. Get it wrong and you crack a sealed unit, ruin the insulation, or leave a draughty, unsafe finish. We've been making and fitting glass across London for over a decade — so your cat's new door is done properly, first time.
For glass and double glazing we manufacture a brand-new sealed unit with the flap hole pre-cut and toughened — never a risky cut into your existing glass.
Your door stays as warm and weather-tight as before. We seal the new unit and the flap correctly so there are no draughts or misting.
Straight, centred, and sized to your cat. The kind of finish that looks like it was always meant to be there — because we measure properly.
If a flap isn't right for your door, we'll tell you — and suggest the best alternative. No upselling, no surprises, just straight talk.
Period sash door, awkward conservatory panel, or a glazed flat entrance with landlord rules? We see them all across London. Tell us about yours.
There's no single best flap — only the best one for your cat and your home. Here's the honest rundown, and we'll happily help you decide.
The simplest option. A 4-way latch lets you set it to in-only, out-only, fully open or fully locked. Reliable and budget-friendly.
Best for: single-cat homes, budgetOpens only when it senses a magnet on your cat's collar — a simple way to deter most other animals from wandering in.
Best for: keeping strays out, collar-friendly catsReads your cat's existing microchip, so only your cat gets in — no collar needed. The best defence against foxes and the neighbour's cat.
Best for: most homes, multi-cat householdsMicrochip control plus a phone app — set curfews, get in-and-out notifications, and know your cat's home safe.
Best for: tech lovers, anxious ownersWe supply & fit trusted brands including SureFlap, PetSafe and Cat Mate — or fit a flap you already own.
We visit, check your door or glass, talk through flap options, and take precise measurements. Often we can measure from outside if you're out.
For glass, your new toughened double-glazed unit is manufactured with the flap hole pre-cut — typically ready in a few working days.
We fit the unit and flap, seal everything properly, test it, and tidy up after ourselves. Most fits take around 30–60 minutes.
We show you how it works and how to introduce your cat — then their new little door is ready for its first adventure.
You may have read that someone can simply "cut a hole" in your double glazing. They can't — not safely. A sealed double-glazed unit is toughened and airtight, and cutting it shatters the glass. The correct, lasting method is to make a fresh sealed unit with the hole cut before toughening. It takes a few days longer, but it's the difference between a flap that lasts years and one that fogs up, leaks heat, or cracks. We only do it properly.
A new flap can feel strange for a day or two. A little patience is all it takes — here's what works.
Tape the flap up so it stays open. Let your cat walk through with nothing to push against until they're comfortable.
Sit on the other side and coax them through with a favourite treat or toy. Reward every brave little crossing.
Once they're confident, let the flap rest down a little at a time so they get used to the gentle push and swing.
If you've chosen a microchip flap, we'll help register your cat so it recognises them from day one. No collar, no fuss.
Every home is different, so we quote each job individually — always free and with no obligation. Here's what shapes the cost, so there are no surprises when we do.
Fitting into uPVC, timber or composite differs from making a new glass unit. Glass is the most specialist — and where our skill matters most.
Glazed units are priced by area, so a small pane costs less than a full-length door panel. Sometimes a smaller pane is the smarter spot.
A manual flap costs less than a microchip or app-controlled model. We'll show you the options at every budget.
We can supply the flap or fit one you've already bought, as long as it suits the door — whichever keeps your costs down.
We make and fit glass every day — your cat flap is handled by specialists, not subcontracted to a handyman.
Safe, sealed, and built to last — never a risky cut into your existing double glazing.
We get it — your cat is family. We treat your home, and the little door that matters so much to them, with real care.
Clean work, fully insured, and backed by our workmanship guarantee. We leave your home exactly as we found it — bar one happy new door.
Rated 5.0 across 90+ verified Google reviews.
The team was incredibly friendly, professional, and efficient. They did an absolutely amazing job — the quality of the work is outstanding.
They complete the job with the utmost quality time and time again. Always on time and come with a great attitude. RSF stuck to their word and delivered exactly what they promised.
Range Shop Fronts have exceeded my expectations, offering great service at affordable prices. Good service, good quality, great customer service — highly recommend.
Every install backed by our guarantee
Made-to-measure, sealed and safe
Clean work, fully insured
No obligation, no pressure
Fitting cat flaps across Greater London: all 32 boroughs — Camden · Islington · Hackney · Haringey · Barnet · Enfield · Ealing · Brent · Wandsworth · Lambeth · Southwark · Greenwich · Lewisham · Bromley · Croydon · Richmond · Kingston · Hounslow · Harrow · Redbridge · Havering · Barking & beyond.
Free survey, honest advice, and a tidy, professional fit — anywhere across London. Let's talk about your door and your cat.
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