✓ Verified Google reviews·✓ Reviewed regularly·✓ Updated 2 September 2026
Written by Mark Reid,
Trades Editor ·Verified 2 September 2026
Telford's mix of housing keeps window installers busy in different ways depending on where you live. The newer estates around Lightmoor and Hadley are mostly still on original uPVC units that are just starting to need attention, whereas the older streets in Wellington or Dawley often have timber sash windows or ageing double glazing from decades back that's gone cloudy or draughty. Then there's the Telford town centre flats and the more rural spots out towards Newport, where access, parking and even planning restrictions on listed or conservation properties can change the job quite a bit. A local installer who knows the area will usually have a good sense of which streets have older Victorian bay windows needing bespoke frames and which are standard modern openings that can be measured and fitted in a day.
The businesses featured here were pulled from public business listings and ranked mainly by review rating and how many reviews they've built up, with a modest boost given to those showing a working website and phone number. We also read through each business's homepage to check that window installation is genuinely what they do day to day, rather than a sideline listed alongside general building or glazing repairs. That step keeps unrelated trades off this page. Any listing flagged as permanently closed gets removed automatically, so what you see should reflect businesses actually trading. Where you spot a Trust Verified badge, that business has gone further and passed our full verification, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information. You can read exactly what that involves on our How We Verify page. For businesses without the badge, none of those checks have been carried out by us, so it's worth doing that homework yourself before signing anything.
Before booking, ask to see FENSA or CERTASS registration, since either scheme confirms building regulations compliance for replacement windows without you needing separate council sign-off. Check what guarantee comes with the glass units and the frames separately, as these are often different lengths, and ask whether it's insurance-backed. It's worth getting written quotes from at least two or three installers covering the same spec, because prices for a standard three-bed semi in Telford can vary by a few hundred pounds depending on the frame material and glazing type quoted. Also ask about disposal of old frames and whether scaffolding or extra access equipment will be needed, particularly for upstairs bay windows, as that can add cost that isn't always obvious in an initial estimate.
How We Select & Rate The Best Window Installers in Telford
Ranking is based on review rating and review count pulled from public business listings, with a small lift given to businesses that show a working website and phone number. We check each business's homepage to confirm window installation is genuinely their main line of work, which keeps unrelated trades off this page. Listings flagged as permanently closed are removed automatically. Businesses marked Trust Verified have gone through our full verification process, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information; see our How We Verify page for the full detail. Other businesses here haven't been independently checked by us, and being listed isn't an endorsement. Always do your own checks before hiring.
Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →
Residential and commercial properties across Telford are served by APH Windows Ltd, a local installer covering uPVC, aluminium, and glazing solutions. The company holds a 4.9-star rating from 133 Google reviews, reflecting consistent work across the area. TF7 4QT forms the base for their operations throughout the wider Shropshire region.
Window installation services covering Telford and the surrounding area, RandS Windows Ltd supplies and fits a range of glazing products for domestic properties. The company holds a 4.9-star Google rating from 49 reviews, suggesting consistent workmanship and reliable customer communication. Based in TF7, they serve homeowners across the borough looking to replace or upgrade their windows.
Families across Telford dealing with draughty frames or failed seals call on Ace Window and Door Fixer to sort the problem rather than replace units unnecessarily. The firm handles window and door repairs and installations for local households, and its 5-star rating from 35 reviews reflects consistent, careful workmanship in the TF2 area.
5 Star Windows & Conservatories is a window and conservatory installer based in Telford, serving the surrounding area from TF2 9HW. The company carries a 4.8 Google rating across customer reviews, reflecting consistent feedback on its installations. Services span replacement windows, doors, and conservatory builds for domestic properties.
William Richards Sash Windows Ltd is a specialist window installer based in Telford, focused exclusively on sash window supply and fitting. The company serves residential customers across the area, with a Google rating of 4.5 from 8 reviews indicating consistent customer satisfaction. Its narrow specialism makes it a practical choice for period or traditional properties requiring sympathetic window replacement.
Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →
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A standard uPVC casement window supply and fit typically runs from around £400 to £700 per window in Telford, depending on size and whether it's a straightforward swap or needs new brickwork. A full house re-glaze, say eight to ten windows on a three-bed semi, often lands somewhere between £4,500 and £8,000, with timber or aluminium frames pushing that up considerably. Bay windows and anything needing scaffolding will add cost too. Get two or three quotes covering identical specifications, because prices between local installers can differ by several hundred pounds for the same job.
Do I need planning permission to replace windows in Telford?
Most homes don't need planning permission for like-for-like window replacement, as it falls under permitted development. That changes if your property is listed or sits in a conservation area, which includes parts of Ironbridge Gorge, where the local council may restrict frame materials or window style. If you're unsure, a quick call to Telford & Wrekin Council's planning team before work starts will save a headache later, and any competent installer should flag this during the initial visit anyway.
How long does a window installation take?
A single window replacement usually takes half a day to a full day, including removal of the old frame and making good the plaster or brickwork around it. A full house of eight to twelve windows is often completed within two to three days, weather permitting, since most fitting is done from outside. Bay windows or anything requiring structural work, like widening an opening, will add extra days. Ask your installer for a realistic timeline before booking so you can plan around it.
What's the difference between uPVC, aluminium and timber windows?
uPVC is the most common choice locally because it's low maintenance and reasonably priced, suiting most 1970s onward housing across Telford. Aluminium frames are slimmer and suit modern extensions or contemporary renovations but cost more, often 20 to 40 percent above equivalent uPVC. Timber windows suit period properties in areas like Wellington or Ironbridge but need repainting or staining every few years and come with a higher price tag. Your choice often comes down to the age and style of your property as much as budget.
Will new windows reduce my energy bills?
Replacing old single glazing or failed double glazing units with modern A-rated double or triple glazing can noticeably cut heat loss, particularly in older Telford properties with draughty timber frames. The actual saving on your bills depends on your current windows' condition and your heating setup, so don't expect it to transform an old boiler's running costs on its own. Ask installers for the window's U-value and WER (Window Energy Rating) so you can compare products properly rather than relying on general claims.
How do I choose between window installers in Telford?
Start by checking whether the installer is FENSA or CERTASS registered, which confirms building regulations compliance without you needing separate council approval. Ask to see their public liability insurance certificate and check how long they've been trading locally, since a company with a solid few years behind them is generally a safer bet than one that's just started up. Read through recent customer reviews rather than just the star rating, as detailed reviews often reveal how they handle problems. Finally, get written quotes from at least two or three installers for the same specification, and clarify what guarantee covers the glass units versus the frames before you commit.
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