✓ Verified Google reviews·✓ Reviewed regularly·✓ Updated 29 May 2026
Written by Mark Reid,
Trades Editor ·Verified 29 May 2026
Reading's housing stock is genuinely varied, and that matters when you're choosing a window installer. Victorian terraces in Caversham and the Katesgrove area often need sympathetic timber-look frames or slim-profile uPVC to satisfy planning guidance, while the post-war semis spreading through Tilehurst and Whitley are more straightforward jobs where standard casement windows and double glazing are the norm. Newer builds around Green Park and the Kennet waterside developments sometimes require specific glazing specifications tied to building warranties, so the installer you use needs to be across the relevant building regulations rather than just turning up with a van full of frames. Draught, condensation, and street noise from the A329 corridor are the complaints we hear most from Reading homeowners, and decent modern double or triple glazing addresses all three.
The businesses on this page were drawn from third-party public business listings and ranked by review rating and review count, with a small lift applied to those that have a working website and a reachable phone number. We also check each business's homepage to confirm that window installation is what they primarily do, which is how unrelated trades get filtered out before you see anything. Any listing flagged as permanently closed is removed automatically. Where you spot a Trust Verified badge on a listing, that business has gone further and passed our full verification process, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information. You can see exactly what that covers on our How We Verify page. For any business without that badge, those checks haven't been done by us, and it's worth carrying them out yourself before you book.
Before you commit to anyone, ask for a written, itemised quote that breaks out the cost of frames, glazing units, fitting, and any remedial work to surrounding brickwork or plasterwork separately. A reputable installer will provide a FENSA or CERTASS certificate on completion, which is the legal route for self-certifying that replacement windows meet building regulations. Without that certificate, you'll need to apply to the council yourself, and it causes real headaches when you sell. Get at least three quotes. Prices for a typical Reading semi with eight to ten windows run roughly from £4,000 to £9,000 depending on frame material, glazing spec, and access difficulty, so there's real money in the comparison. Check that any guarantee covers both the product and the installation, not just one or the other, and confirm who actually honours it if the installing company closes.
How We Select & Rate The Best Window Installers in Reading
Rankings on this page are driven by public review rating and review count pulled from third-party business listings, with a small lift for businesses that have a working website and a reachable phone number. We check each business's homepage to confirm window installation is what they primarily offer, which keeps unrelated trades off the page. Permanently-closed listings are removed automatically. Businesses carrying a Trust Verified badge have additionally passed our full verification, covering qualifications, insurance, trading history, customer review history, and registered company information. See our How We Verify page for the complete list. All other businesses on this page have not been independently verified by us, and inclusion is not 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 →
Somerville Glass & Windows Ltd provides window installation services to customers throughout Reading from their base on Shinfield Road. The company has earned a strong reputation with a 4.8-star rating from 175 verified customer reviews. Their experienced team handles various window fitting projects for residential and commercial properties in the RG2 area and surrounding neighbourhoods.
WindowWorx provides professional window installation services to customers across Reading and the surrounding areas. Based on Loverock Road, the company has earned a strong reputation with a 4.7-star rating from 143 verified customer reviews on Google. Their experienced team specialises in fitting quality windows for residential and commercial properties throughout the RG30 postcode area and beyond.
The Shinfield Window Company provides professional window installation services from their base at Acre Business Park in Reading. Operating throughout the Reading area, they have earned a perfect 5-star rating from 41 verified customer reviews on Google. The company specialises in fitting quality windows for residential and commercial properties across Berkshire.
Owls Windows Ltd provides professional window installation services throughout Reading and the surrounding areas. The company has earned a perfect 5-star rating from 24 verified customer reviews on Google, reflecting their commitment to quality workmanship and customer satisfaction. They specialise in fitting replacement windows for residential and commercial properties across the local region.
Allwood Sash Windows provides professional window installation services throughout Reading and the surrounding areas. The company specialises in sash window solutions and operates from their Tilehurst base, maintaining a perfect 5-star rating from 24 verified customer reviews. Their expertise covers both traditional and modern window installations for residential and commercial properties.
Crest Home Improvements (Reading) Ltd provides professional window installation services throughout Reading and the surrounding areas. Based on Honey End Lane, the company has earned a perfect 5-star rating from 16 verified customer reviews on Google. They specialise in fitting replacement windows for residential properties, helping homeowners enhance their homes' energy efficiency and appearance.
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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Double glazed UPVC windows typically cost £300-600 per window including installation, while aluminium frames run £500-900 each. Sash window restoration ranges from £800-1,500 per window depending on the extent of repairs needed. Full house replacements for a three-bed semi often fall between £4,000-8,000. Prices vary based on window size, frame material, energy ratings, and any structural work required. Getting quotes from two or three local installers helps you understand the going rate for your specific requirements.
Do I need planning permission for new windows in Reading?
Most window replacements don't need planning permission under permitted development rights, but there are exceptions. Properties in conservation areas like parts of Caversham require planning consent for any changes to street-facing windows. Listed buildings always need listed building consent regardless of location. If you're changing window sizes or adding new openings, you'll likely need permission. Your installer should know the local rules, but check with Reading Borough Council if you're unsure about your property's status.
How long does window installation take?
A typical three-bedroom house takes 2-3 days for complete window replacement. Single window replacements are usually done in half a day once the new windows arrive. Sash window restoration takes longer, often 1-2 days per window if they're being rebuilt off-site. Weather can delay external work, and any structural repairs discovered during removal add time. Most installers will give you a realistic timeframe upfront and keep you updated if delays occur.
What's the difference between UPVC and aluminium windows?
UPVC windows cost less initially and offer good insulation, but they can discolour over time and have limited colour options. Aluminium frames are stronger, allowing for larger panes of glass, and they're available in many colours including wood-effect finishes. They're also more durable but conduct heat more readily, though modern thermal breaks largely solve this. Aluminium typically costs 30-50% more than UPVC but may last longer and suit contemporary properties better.
Should I replace all windows at once or do them gradually?
Replacing all windows together usually works out cheaper per window and creates less disruption overall. You'll also get consistent appearance and performance across your property. However, if budget's tight, prioritise north-facing windows and any that are letting in draughts or showing condensation problems. Many installers offer payment plans for larger jobs. Gradual replacement makes sense if you're renovating room by room, but try to complete each elevation in one go for the appearance.
How can I check if a window installer is reliable?
Check they're registered with FENSA or CERTASS for building regulations compliance, and verify their public liability insurance is current. Look for Trustmark or Which? Trusted Trader accreditation. Read recent Google reviews carefully, paying attention to how they handle any complaints. Visit their premises if possible and ask to see examples of recent local work. Get detailed written quotes that specify glass types, frame materials, and guarantee terms. Avoid anyone who cold-calls or pressures you to sign immediately.
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