Rankings on this page are driven by public review rating and review count pulled from third-party business listings, with a small lift applied to businesses that have a working website and a listed phone number. We check each business's homepage to confirm that window installation is what they primarily offer, which keeps unrelated trades off the page, and any listing flagged as permanently closed is removed automatically. Businesses carrying a Trust Verified badge have additionally passed our full independent verification covering trade qualifications, public liability insurance, trading history, customer review history, and registered company information. See our How We Verify page for the full list. Other businesses featured here have not been independently verified by us, and inclusion is not an endorsement. Always carry out your own checks before hiring.
| # | Business | Rating | Reviews | Phone | |
|---|---|---|---|---|---|
| 1 | SDG Windows Ltd Recommended | ⭐ 4.8 | 207 | +44 20 8616 1516 | View → |
| 2 | The London Sash Window Company Featured | ⭐ 4.9 | 147 | +44 20 8017 1632 | View → |
| 3 | SJB Sash Windows Specialist ltd Featured | ⭐ 4.8 | 102 | +44 20 8296 9487 | View → |
| 4 | Sidcup Windows & Doors Featured | ⭐ 4.6 | 123 | +44 20 8298 9059 | View → |
| 5 | Romford Windows Ltd : Double Glazing Featured | ⭐ 5.0 | 34 | +44 1708 780382 | View → |
| 6 | Roberts Windows Ltd | ⭐ 4.4 | 92 | +44 20 8658 3642 | View → |
| 7 | Wandsworth Sash Windows | ⭐ 4.7 | 48 | +44 20 7924 7303 | View → |
| 8 | A1 Window Construction Ltd | ⭐ 5.0 | 27 | +44 7984 009902 | View → |
| 9 | Avenue Windows | ⭐ 4.8 | 35 | +44 1708 988888 | View → |
| 10 | Rise Windows | ⭐ 4.9 | 28 | +44 20 8117 3076 | View → |
| 11 | Bespoke Windows & Doors Ltd | ⭐ 5.0 | 15 | +44 20 3380 0656 | View → |
| 12 | Dulwich Sash Ltd | ⭐ 5.0 | 13 | +44 20 8658 7753 | View → |
| 13 | FILUS. LOCAL PROPERTY SERVICES | ⭐ 5.0 | 10 | +44 7500 069380 | View → |
| 14 | Local Window Installer Erith | ⭐ 5.0 | 6 | +44 800 310 1665 | View → |
| 15 | Glitz Windows & Doors | ⭐ 4.6 | 11 | +44 20 3370 7955 | View → |
| 16 | London and Surrey Windows | ⭐ 4.1 | 8 | +44 20 8058 2765 | View → |
| 17 | Sutton Windows - Welling | ⭐ 4.0 | 9 | +44 800 212289 | View → |
Our Top Picks
SDG Windows Ltd provides professional window installation services from their base on Sydenham Road in London SE26. The company has earned a strong reputation with local customers, maintaining a 4.8/5 star rating based on 207 verified Google reviews. They serve properties across London with reliable glazing solutions and expert fitting services.
Read more →The London Sash Window Company specialises in sash window installation and restoration services throughout London. Based in SE20, the company has earned a 4.9/5 star rating from 147 verified customer reviews. They provide expert window installation services for both period properties and modern homes across the capital.
Read more →SJB Sash Windows Specialist Ltd provides professional window installation services from their Carshalton base, serving London and surrounding areas. The company specialises in sash window solutions and has earned a strong reputation with customers, reflected in their 4.8 out of 5 star rating from 102 verified Google reviews. Their experienced team focuses on both traditional and modern window installations for residential and commercial properties across the SM5 postcode area and beyond.
Read more →Sidcup Windows & Doors specialises in window installation services for residential and commercial properties in the Sidcup area and surrounding London boroughs. The company has earned a strong reputation with customers, maintaining a 4.6-star rating based on 123 verified Google reviews. Based on Westwood Lane in Sidcup, they serve the DA15 postcode area and neighbouring communities with professional window fitting solutions.
Read more →Romford Windows Ltd specialises in double glazing installation services from their base on White Hart Lane in Romford. The company maintains a perfect 5-star rating from 34 verified customer reviews on Google, reflecting their consistent service quality across the London area. They focus on window installation solutions for residential and commercial properties throughout the RM7 postcode and surrounding districts.
Read more →Roberts Windows Ltd provides window installation services across London from their base in Beckenham. The company has earned a 4.4-star rating from 92 verified customer reviews, reflecting their consistent service to homeowners in the BR3 area and surrounding neighbourhoods. Their experienced team handles residential window fitting projects throughout the capital.
Read more →Wandsworth Sash Windows specialises in the installation and restoration of traditional sash windows across London, operating from their base in Lower Sydenham. The company has earned a strong reputation with a 4.7-star rating from 48 verified customer reviews. Their skilled craftsmen work throughout the capital, helping property owners maintain the period character of their homes while improving energy efficiency and security.
Read more →A1 Window Construction Ltd provides professional window installation services across London from their Wallington base. The company has earned a perfect 5-star rating from 27 verified customer reviews, reflecting their commitment to quality workmanship and customer satisfaction. They serve residential and commercial clients throughout the London area, offering expert fitting and replacement services for various window types.
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Add Your BusinessAvenue Windows provides professional window installation services across London and the surrounding areas, operating from their base in Rainham. With a strong reputation reflected in their 4.8-star rating from 35 verified customer reviews, they specialise in fitting replacement windows for residential and commercial properties throughout the RM13 postcode area and beyond.
Read more →Rise Windows provides professional window installation services throughout the Beckenham and surrounding BR3 area. The company operates from Elmers End and has earned a strong reputation with customers, achieving 4.9 out of 5 stars from 28 verified Google reviews. Their experienced team specialises in fitting replacement windows for residential and commercial properties across South London.
Read more →Bespoke Windows & Doors Ltd specialises in professional window installation services across London and the surrounding areas. Based in Coulsdon, the company maintains an exceptional 5-star rating from 15 verified customer reviews. Their experienced team provides tailored window solutions for residential and commercial properties throughout the region.
Read more →Dulwich Sash Ltd specialises in window installation services across London, operating from their Beckenham base. The company maintains a perfect 5-star rating from 13 verified customer reviews on Google. They focus on sash window solutions for residential and commercial properties throughout the capital.
Read more →FILUS. LOCAL PROPERTY SERVICES specialises in window installation services for residential and commercial properties across London and the Carshalton area. The company has earned a 5-star rating from 10 verified customer reviews, reflecting their commitment to quality workmanship and customer satisfaction. Operating from their base in Carshalton SM5, they provide professional window fitting solutions to help improve energy efficiency and enhance property value.
Read more →Local Window Installer Erith provides professional window installation services from their base on Slade Green Road in Erith, serving the DA8 area and surrounding London districts. The company has earned a perfect 5-star rating from 6 verified customer reviews on Google. Customers can learn more about their services and request quotes through their dedicated website.
Read more →Glitz Windows & Doors provides professional window installation services across London from their Coulsdon base. The company has earned a strong 4.6/5 star rating from 11 verified customer reviews, reflecting their reliable service in the CR5 area and surrounding neighbourhoods. They specialise in fitting quality windows and doors for residential and commercial properties throughout the capital.
Read more →London and Surrey Windows specialises in professional window installation services across London and Surrey from their base in SE19. The company has earned a 4.1/5 star rating from 8 verified customer reviews on Google. Their experienced team provides comprehensive window fitting solutions for residential and commercial properties throughout the region.
Read more →Sutton Windows - Welling provides professional window installation services from their base on Bellegrove Road in Welling, serving the DA16 area and surrounding London boroughs. The company maintains a solid 4-star rating from 9 verified customer reviews on Google, reflecting their reliable approach to residential and commercial glazing projects. Their experienced team handles various window types and installation requirements for local property owners.
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