When you are spending a significant amount improving your home, you want two things: confidence that you are making the right choice, and reassurance that you are protected if anything needs attention once the job is done. That second part matters just as much as the first, and it should not depend on reading the small print.
No pressure, just honest advice
Ruislip Windows was founded by John Flynn in 1986, and it is still a family-run business today, with John running the business alongside his son Joe.
Despite tighter regulation across the home improvement industry, some companies still lean on high-pressure sales tactics and offers that vanish the moment you ask for time to think. At Ruislip Windows, we want buying new windows or doors to be as straightforward and pleasant as possible.
That means no pressure to sign on the day, no artificial deadlines, and only honest, practical advice backed by a realistic quote.
You decide when you are ready, not us.
“I trained as a carpenter before I ever sold a window, and a tradesman stands behind their work long after they’ve left the job. That’s the only kind of aftersales I know how to run.” — John Flynn, founder
What FENSA and CERTASS registration means for you
As members of both FENSA and CERTASS, the two main competent person schemes for window and door installers, we are required to give every customer the following protections as standard:
- Protection for any deposit you pay before work begins
- A guarantee covering the completed installation
- An insurance-backed policy, so that guarantee still stands even if we were ever to stop trading
- Site operatives who are suitably qualified and regularly assessed
Registration also means your installation is notified to Building Control and your local council on your behalf, which can matter later if you come to sell your home.
What is an insurance-backed guarantee?
An insurance-backed guarantee, or IBG, is the safety net behind your installation guarantee.
Rather than relying only on the company that fitted your windows still being around in ten years, the guarantee itself is insured, so it continues to apply even if the business does not. We provide ours through Quality Assured National Warranties (QANW), and every eligible installation carries ten years of cover.
Choosing products we can stand behind
We only fit windows and doors from established manufacturers, including Rehau, Deceuninck, Kömmerling, Aluk and The Residence Collection. Every range we offer has a proven record for weatherproofing and performance, and for how well it holds up once it is actually fitted in a home.
That matters just as much as the guarantee behind it. A well-made window rarely needs the aftercare covered below, and a poorly made one will find every weakness in a guarantee eventually.
Our aftersales support, if you ever need it
Our commitment does not end once the installation is finished. That is only the first part of what we do.
The second is the aftercare you receive afterwards, and while most customers never need to call on it, we are ready when something does.
We have our own service engineer, so any issue is handled by someone who works for us, not passed to a subcontractor with a different schedule and a different set of priorities. General issues are usually sorted within a few working days, and anything urgent gets seen to the same day.
None of this is chargeable while you are within your guarantee period.
What our customers say
We take pride in the reputation we have built over 40 years, and it shows in the reviews people leave us.
On Yell, we currently hold a 5.0 out of 5 rating from 557 reviews, with 547 of those five stars. On Google, we are rated 4.9 out of 5 from more than 280 reviews. You can also find further testimonials on Trustpilot and on our testimonials page.
Want to know more?
If you would like to know more about our aftersales service, our guarantees, or anything else about buying windows or doors from us, call us on 020 8868 1133 or email office@ruislipwindows.co.uk.
We are always happy to talk you through it, with no pressure to book anything on the spot.