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Our guarantee

Our 10-year guarantee.

Our work comes with our 10-year guarantee – our own guarantee, direct from us. If something's not right, tell us and we'll come and look at it. And when you get your quote, ask James's team exactly what's covered – you'll get a straight answer.

An anthracite composite door with two leaded glazed panels, flanked by two white-framed obscure-glazed sidelights, in red brick. A slate plaque reads 95.
Anthracite composite between white sidelights.
An oak-look composite stable door with a decorative glazed top panel and a black frame, beside a black casement window in red brick, with a tall wicker-effect planter either side.
Oak-look stable door and black casement, red brick frontage.

Who stands behind it

We fit every job with our own skilled team – not subcontractors. James, the owner, is a tradesman with more than twenty years on the tools, and he leads a small team of our own fitters: the people who measure up are the people who stand behind the work. We're family-run, based in Lower Wortley – no showroom, no call centre, no sales patter. And we're CERTASS certified (registration 19-1239), so your installation is registered and self-certified to Building Regulations – nothing for you to chase with the council.

"The team worked hard and efficiently with minimal disruption."
Rachel J.

What our 10-year guarantee is

Every job Wortley Windows & Doors fits carries our 10-year guarantee, given directly by us – the company that did the work – not by a third party. That's the whole of it: ten years, on every installation, from the firm whose own fitters measured up and fitted it.

If something's not right in that time, tell us and we'll come and look at it. You'll be talking to James and the team – the same people who did the job. Ring 07889 242453 or use our contact page and we'll take it from there.

Your CERTASS certificate is separate protection

The CERTASS certificate is separate protection from our 10-year guarantee. It matters when you come to sell the house, and it protects your home's resale value, and because the record sits with the local authority rather than with us, it stands in its own right whatever happens.

CERTASS is a government-authorised Competent Person Scheme. If you've heard of another scheme with a bigger name, CERTASS does the same job – a certificate from a government-authorised scheme carries the same legal standing whichever body issued it.

Anyone can check our CERTASS registration

CERTASS keeps a public register, anyone can search it, and our entry is on it. You shouldn't have to take a window company's word for a credential, and on this one you don't have to. It's worth doing before you sign with anybody, us included: if a firm names a scheme and you can't find them on that scheme's own register, you've got your answer. Here is what our entry shows.

Wortley Windows and Doors Limited

The registered company name, with our account number 19-1239 listed against it.

41 Kirkdale Terrace, LS12 6BA

Our address in Lower Wortley. The same one on our contact page, and the same one on the register.

Competent Person for Domestic Glazing

The certification listed against our account. That is the competent-person route for replacing glazing in homes.

Read our entry on the CERTASS register and hold it up against this page. It should say the same thing, because every claim on this site is meant to be one you can check somewhere that isn't this site: the register for the paperwork, our reviews for the service, and the jobs we've fitted around Leeds for the work itself. If what you find doesn't match what you've read here, ring 07889 242453 and ask James about it.

The last thing you lock. The first thing anyone sees.

Why your job needs signing off at all

Because replacing a whole window or door is building work, and building work has to be signed off. The Building Regulations set what a replacement has to reach on heat loss, on ventilation, and on where safe glazing has to go, and somebody has to confirm the new unit meets them. Being on a competent-person scheme means we sign our own work off rather than you booking a council inspector. CERTASS notifies the local authority and your certificate follows. Swapping just the glass, or just a door slab, in a frame you're keeping is a different thing: that isn't a controlled fitting, so there's no certificate to issue.

So the certificate exists because the law says the work has to be signed off. Our 10-year guarantee exists because we decided to give it. No regulation asks for it, no scheme issues it, and nothing obliged us to put our name on your job for ten years. One is paperwork you're entitled to. The other is a promise we chose to make.

Guarantee and manufacturer warranty are different things

An installer's guarantee and a manufacturer's warranty are two different layers of cover, and it's worth understanding both before you sign with any window company, not just us.

Manufacturer's warranty and installer's guarantee compared
FeatureManufacturer's warrantyInstaller's guarantee
What it coversThe parts – the frames, the double-glazed sealed units, the hinges and handlesThe fitting – the measuring, the sealing, the finish, the workmanship that decides whether those parts perform as they should
Who gives itWhoever made the parts, on their own termsThe company that did the work
How long it runsVaries by product – ask about that when you get your quoteSet by the installer

Our 10-year guarantee is the second kind: the fitting is the part we control ourselves, which is exactly why we can put our own name behind it.

Ask us exactly what is covered

When you get your quote from Wortley Windows & Doors, ask James and the team exactly what our 10-year guarantee covers on your job – you'll get a straight answer, not a script. It's your house and your money, and you should know precisely where you stand before you commit. If you'd like to see the work the guarantee stands behind, have a look at our recent fitted jobs around Leeds. Then request your free quote or ring 07889 242453 – no pressure, no hard sell, just an honest conversation about what your home needs.

Ask, then check

Ask what it covers. Check what we claim. Both should hold up.

  1. Our 10-year guarantee Given directly by us, not by a third party.
  2. CERTASS certified Registration 19-1239, on the scheme's own public register.
  3. Our own fitters, not subcontractors The people who measure up stand behind the work.

Want it covered for ten years?