Written by Mark Reid,
Trades Editor ·Verified 23 September 2026
Motherwell's housing stock is a real mix, which makes window installation a bit different from job to job. You've got the sandstone terraces around Muir Street and Windmillhill Street with their original sash and case frames, post-war semis out towards Forgewood needing full uPVC replacements, and newer builds near Ravenscraig where it's more about repairs, resealing or the odd broken unit. Weather off the Clyde valley doesn't help either. Wind-driven rain finds its way into tired seals fast, so a lot of local homeowners end up calling an installer after noticing draughts or condensation between panes rather than planning ahead. Knowing your property type before you get quotes helps, because sash and case work costs more and takes longer than a straightforward uPVC swap.
The businesses featured on this page come from public business listings, ranked mainly by review rating and how many reviews they've built up, with a small boost given to those showing a working website and phone number. We read through each business's homepage as well, checking that window installation is genuinely their main line of work rather than a general builder who occasionally fits a window. That step keeps unrelated trades off this list. Any listing flagged as permanently closed gets removed automatically, so what you're seeing should reflect businesses still 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. Our How We Verify page sets out exactly what that involves. For businesses without the badge, we'd encourage you to run those same checks yourself before signing anything.
Before booking, ask for a written quote that breaks down the frame material, glazing type (double or triple glazed, and the U-value if you're chasing energy efficiency) and installation timescale. FENSA certification matters for uPVC and most replacement window work in Scotland's building regulations context, so ask whether the installer self-certifies or uses a third party, and get that paperwork in writing rather than a verbal promise. Check what happens with old frame disposal too, as some quotes include it and others charge extra. It's worth getting two or three quotes for anything beyond a single small repair, since prices for a full house of uPVC windows in a typical Motherwell semi can range from roughly £3,500 to £7,000 depending on window count, style and glazing spec, and quotes between firms can vary more than you'd expect for what sounds like the same job.
How We Select & Rate The Best Window Installers in Motherwell
Ranking is driven by review rating and review count pulled from public business listings, with a small lift given to businesses showing a working website and phone number. We check each business's homepage to confirm window installation is what they primarily do, which filters out unrelated trades. Listings flagged as permanently closed are removed automatically. Businesses marked Trust Verified have additionally passed our full verification, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information, detailed fully on our How We Verify page. Other businesses on this page haven't been independently verified by us, and appearing here isn't an endorsement. Always do your own checks before hiring anyone.
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 →
Homeowners and commercial premises across Motherwell turn to Dolan Windows and Doors for window and door installation and replacement. The company holds a perfect 5.0 rating across 36 Google reviews, reflecting consistent work within the ML2 area. Supply and fitting of a range of window and door styles forms the core of what they offer.
Dalziel Home Design Ltd is a window installation company based in Motherwell, serving homeowners across the surrounding area. Rated 4.9 on Google from 17 reviews, the business has built a consistent local reputation for window supply and fitting. Customers in ML1 and nearby postcodes use the company for domestic window replacement projects.
A perfect five-star rating across 19 Google reviews marks UPVC Home Improvements out as a consistently reliable choice for window installation in Motherwell. The company focuses on uPVC window fitting for residential properties, serving homeowners in the ML1 area and surrounding localities. Its clean review record suggests a straightforward, dependable service from enquiry through to completion.
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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How much does a window installers cost in Motherwell?
A single uPVC window replacement typically runs from around £350 to £650 depending on size and glazing spec, while a full house re-glaze in a standard three-bedroom semi often lands between £3,500 and £7,000. Sash and case restoration or replacement costs more, sometimes £800 to £1,500 per window, because of the joinery involved. Triple glazing and coloured or woodgrain-effect frames push prices up further. It's normal to get two or three quotes, since the spread between installers for the same spec can be a few hundred pounds or more.
Do I need planning permission or building warrant approval for new windows in Motherwell?
Most straightforward replacement windows in existing openings don't need a building warrant, as long as they meet current energy efficiency standards, but if you're in a conservation area or your property is listed, restrictions on frame colour and style can apply. North Lanarkshire Council's planning department can confirm this for your specific address. Ask your installer whether they'll handle FENSA or equivalent certification, since that's usually the route used to demonstrate compliance without a separate warrant application.
How long does a window installation job take?
A typical uPVC window swap takes an installer half a day to a full day per window, though a full house of ten to twelve windows is often completed in two to three days with a decent-sized team. Sash and case restoration takes longer, sometimes a week or more if frames need rebuilding on site or timber has to be sourced. Weather can cause delays too, particularly with exposed jobs in winter, so build in some flexibility when scheduling.
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 semis and terraces without period features. Aluminium frames are slimmer and suit modern extensions or larger glazed areas but cost more and can feel colder without a good thermal break. Timber, including sash and case, suits older sandstone properties and conservation areas but needs repainting or staining every few years to stop rot. Your installer should be able to talk through maintenance and lifespan for each, not just push whatever's cheapest to fit.
Will new windows actually reduce my energy bills?
Replacing single glazing or old, draughty double glazing with modern A-rated double or triple glazed units can make a noticeable difference to heat loss, particularly in older Motherwell properties with solid walls and no cavity insulation. Savings vary depending on your current windows, boiler efficiency and how well the rest of the house is insulated, so don't expect it to fix everything on its own. Ask for the U-value of the glazing being quoted, since a lower number means better insulation, and compare that figure between quotes rather than just the headline price.
How do I choose between window installers in Motherwell?
Start by checking whether the installer holds FENSA registration or works with a competent persons scheme, since this covers building regulation compliance for replacement windows. Ask to see photos of previous jobs in similar properties, particularly if you've got sash and case windows or a non-standard opening size. Read through recent customer reviews for mentions of tidiness, timekeeping and how snagging issues were handled after installation, not just the initial fitting. Confirm public liability insurance is current and ask for the guarantee terms in writing, including what's covered on the frames versus the glazing units themselves. Getting multiple quotes with identical specifications makes it much easier to compare like for like.
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