Cat Flaps In Lisburn

Call us now for expert cat flap fitting, 30 – 90 minute response time with no call-out fee. We can fit in single and double-glazed glass, UPVC, and wood doors.

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Over 20 years of experience in the glazing industry.
Services at Montrose Glass

Cat Flap Fitting in Lisburn: What You Need to Know

Lisburn is a city in County Antrim, sitting on the River Lagan at the edge of the Belfast metropolitan area. Its housing stock ranges from Victorian terraces in the older streets near the city centre to large 1970s and 1980s estates, as well as a growing number of modern new-build developments on the outskirts towards Sprucefield and Dromore Road.

Montrose Glass provides cat flap fitting in Lisburn and is available 24 hours a day, 7 days a week, 365 days a year. Whether you need a cat flap installed in a glass panel, a uPVC door, a timber door, or a wall, our glaziers carry everything needed to complete the work on-site, with many jobs finished in a single visit. As a local specialist offering Window Glazing and related services across the area, we are familiar with the property types across Lisburn and can advise on the right solution for your home.

Why Choose Montrose For Cat Flap Installation?

No Call-Out Fee

What Does Cat Flap Installation in Lisburn Involve?

Cat flap fitting covers several different installation types, and the approach depends on where you want the flap positioned. For a uPVC or timber door, the flap is cut into the door panel itself. For a wall installation, the process involves cutting through the masonry and fitting a tunnel flap. When a pet door installation in Lisburn involves glass, the method is different and requires a glazier rather than a general handyman.

For any cat flap fitted in glass in Lisburn, a new pane is manufactured with the hole pre-cut and the flap already fitted before it arrives at your property. If your window is a sealed double glazed unit, a new toughened glass unit is made to measure with the cat flap in place. This means the sealed unit is never drilled or cut on-site in a way that would compromise the glass or the seal. Our vans are stocked with glass that can be cut and prepared, allowing most jobs to be completed without a second visit. You can choose from a range of options including a microchip cat flap, a locking cat flap, or a standard flap, depending on how much control you need over your pet’s access.

Lisburn’s newer estates, particularly those built in the 1990s and 2000s around areas such as Tonagh and Belsize, tend to have double glazed uPVC windows and doors as standard. If your home falls into this category, the double glazed cat flap route is almost certainly the right one, and a glazier will confirm this during the on-site assessment.

man installing glass window
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Why Professional Cat Flap Fitting Matters in Lisburn

Cutting into an existing sealed double glazed unit is not a task that can be done without breaking the seal between the two panes. Once the seal is broken, moisture enters the cavity and the unit begins to mist from the inside. That misting is permanent and the only remedy is replacing the sealed unit entirely. Attempting to drill or cut a hole into an existing double glazed panel to fit a pet door will always result in this outcome, which means the job ends up costing more than a professional installation would have in the first place.

An ill-fitting cat flap in glass also creates draught and water ingress problems. In a city like Lisburn, where the climate is wet for much of the year, a poorly sealed flap will let in wind and rain around the frame. A professional cat flap glazier in Lisburn will ensure the flap is correctly sized for the pane, properly sealed, and that the new unit is installed flush within the existing frame. For anything involving Double Glazing, the glazier supplies a new toughened glass unit with the flap already integrated, keeping your window weatherproof, secure, and thermally efficient. This approach also means your home remains properly insulated, which matters in the older Victorian terraces near Lisburn city centre where heat retention can already be a challenge.

Montrose Glass have experience in installing cat flaps for windows in Lisburn to give your pet a custom entrance to your home where needed.
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Client Testimonials
Here are some testimonials from our valued customers in Lisburn who have experienced our exceptional services. As proud members of the Guild of Master Craftsmen, we prioritise delivering a cost-efficient service that guarantees quality workmanship. If you have any inquiries or require further information, please don't hesitate to contact us.
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Superb service. The guys were out on time and the job was completed within an hour, including a full clean up. Would definitely use again.
Russell Haselhurst
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We used Montrose Glass for a construction project in London recently. They were fantastic. Service was great, as was the workmanship. The 2 glaziers are a credit to the company. Also, they turned up and carried out the works during heavy snowfall without complaint. We would definitely recommend them.
Christine S
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I needed to get some work done for quite a while on my house, but kept putting it off - after a couple of calls to Montrose Glass I felt comfortable discussing it and they made it so easy and simple that I\'ve decided to get it all sorted. Great service and I have already got them quoting my mums house and will have no worries referring them on in the future.
Tom Bell

Cat Flap Fitting in Lisburn: Frequently Asked Questions

The questions below cover the most common queries from homeowners in Lisburn considering cat flap fitting. Each answer is written to give you the full picture without needing to read the rest of the page.

Yes, Montrose Glass covers the whole of Lisburn, including all surrounding neighbourhoods and nearby areas. The service is available 24 hours a day, 7 days a week, every day of the year, with nationwide UK coverage meaning no location is excluded. If you are unsure whether your postcode falls within our range, call and a glazier will confirm immediately.

In most circumstances, a glazier can reach your property in Lisburn within 30 to 90 minutes of your call. Montrose Glass operates 24/7, so the same response time applies whether you call in the morning, evening, or overnight. This makes it straightforward to arrange cat flap installation in Lisburn around your schedule without a long wait.

There is no call-out fee for cat flap fitting in Lisburn. A glazier will come to your property, assess the job, and provide transparent pricing before any work begins, all at no charge for the visit itself. You only pay for the work carried out, so there is no financial risk in having someone come out to advise you.

Yes, Montrose Glass fits cat flaps into double glazing in Lisburn, but the process requires a new sealed unit rather than cutting into the existing glass. A cat flap cannot be drilled or cut into an existing sealed double glazed unit without breaking the seal and causing permanent misting, so the glazier supplies a new toughened glass unit with the cat flap already fitted and installs it into your existing frame. This keeps the window fully sealed, weatherproof, and secure. A glazier will measure and advise on all available options at no call-out charge.

Montrose Glass can install a range of cat flap types in Lisburn, including standard flaps, locking cat flaps, and microchip cat flaps that only open for your specific pet. The right choice depends on your security requirements, the number of animals in the household, and whether the flap is being fitted into glass, a uPVC door, a timber door, or a wall. The glazier will talk through the options with you on-site during the assessment.

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