UK window companies compared: reviews and guarantees

How UK window companies compare on reviews

Trustpilot scores for the window companies in this guide range from 2.7 out of 5 to 4.9 out of 5, read on 15 October 2026. Review volumes range from 1,399 to 48,797. The spread matters because a score on its own says little without the volume behind it and the date it was read. A company with 1,399 reviews and a company with 48,797 reviews are not giving a buyer the same amount of evidence, even when their scores sit close together. All Trustpilot figures in this guide were read from each company's public Trustpilot page on 15 October 2026, and scores change daily.

The companies fall into two broad groups on the numbers. Anglian, Safestyle and Everest carry the largest review volumes and the lowest scores. CR Smith, First Home Improvements, Britelite and Coral Windows carry smaller volumes and higher scores. That pattern is not proof that one group installs better windows than the other. It reflects how long each brand has been trading, how many customers it has served, how actively it invites reviews, and how it handles complaints in public. The sections below set out the figures for each company, then explain what each number means when a buyer is weighing up a quote.

Anglian, Safestyle and Everest: one group, three brands

Anglian Home Improvements holds a Trustpilot score of 3.9 out of 5 from 40,659 reviews read on 15 October 2026. Of those reviews, 60% are 5-star and 18% are 1-star. Trustpilot shows Anglian replied to 98% of negative reviews, typically within 48 hours. Anglian was founded in 1966 and offers a 10-year guarantee on windows, according to company information as reported. The 18% 1-star share is the figure to weigh against the 60% 5-star share: a large majority of reviewers are positive, but close to one in five is not, and the reply rate shows the company answers those complaints in public.

Safestyle, trading as H.P.A.S Limited, holds a Trustpilot score of 3.2 out of 5 from 48,797 reviews, with 292 in the last 12 months, read on 15 October 2026. Of those reviews, 70% are 5-star and 17% are 1-star, and Trustpilot shows it replied to 98% of negative reviews. Trustpilot notes the company has not invited customers recently, so reviews may not be representative. Everest holds a Trustpilot score of 2.7 out of 5 from 13,511 reviews, with 201 in the last 12 months, read on 15 October 2026. Of those reviews, 69% are 5-star and 19% are 1-star, and Trustpilot shows it replied to 37% of negative reviews.

The ownership history behind these three brands is central to any guarantee question. H.P.A.S Limited, trading as Safestyle UK, entered administration on 30 October 2023 with Interpath Advisory appointed, according to the FCA. Anglian Home Improvements completed the purchase of its order book, brand and intellectual property on 16 November 2023, according to Interpath. Everest 2020 Limited entered administration on 24 April 2024 with ReSolve appointed, and Anglian Home Improvements completed the purchase of its order book, brand and intellectual property on 21 May 2024, according to Anglian. For a buyer, that means the brand on the van and the legal entity that signed the contract may not be the same, and a guarantee given by an older entity may not carry across automatically. Insurance-backed guarantees protect the guarantee if the installer stops trading, which matters given that Safestyle and Everest both went into administration.

Regional and national installers with higher scores

CR Smith operates in Scotland only and holds a Trustpilot score of 4.9 out of 5 from 6,442 reviews read on 15 October 2026. Of those reviews, 91% are 5-star and under 1% are 1-star. Trustpilot shows it has not replied to negative reviews. CR Smith traces its history to 1917 and offers a 10-year guarantee, according to company information as reported. The score and the 1-star share are the strongest in this comparison, but the no-reply position means a buyer in Scotland cannot see how the company answers complaints in public. The Scotland-only footprint also means the figures are not a guide for buyers elsewhere in the UK.

First Home Improvements holds a Trustpilot score of 4.6 out of 5 from 12,006 reviews, with 3,053 in the last 12 months, read on 15 October 2026. Of those reviews, 80% are 5-star and 8% are 1-star, and Trustpilot shows it replied to 89% of negative reviews. First Home Improvements offers a 12-year guarantee covering the whole window including locks and frames, according to company information as reported. The 3,053 reviews in the last 12 months make this the most current large sample in the group, which matters because recent volume shows how current the picture is.

Britelite Windows holds a Trustpilot score of 4.7 out of 5 from 2,114 reviews read on 15 October 2026. Of those reviews, 71% are 5-star and 8% are 1-star, and Trustpilot shows it replied to 86% of negative reviews. Britelite offers a 10-year guarantee that transfers to future owners of the home, according to company information as reported. Coral Windows holds a Trustpilot score of 4.6 out of 5 from 1,399 reviews, with 237 in the last 12 months, read on 15 October 2026. Of those reviews, 82% are 5-star and 6% are 1-star, and Trustpilot shows it replied to 100% of negative reviews, typically within 24 hours. The 1,399 review base is the smallest here, so each review moves the score more than it would at Anglian or Safestyle.

What the numbers tell you

A high share of 5-star reviews can sit alongside a low overall TrustScore when recent reviews are worse or the company has stopped inviting reviews. Safestyle is the clearest example: 70% of its 48,797 reviews are 5-star, yet the score is 3.2 out of 5, and Trustpilot notes the company has not invited customers recently, so reviews may not be representative. Everest shows the same pattern at a lower level: 69% 5-star against a score of 2.7 out of 5. A buyer reading only the 5-star share would form a different view from a buyer reading the score and the recency note together. The two figures need to be read as a pair.

Review volume in the last 12 months shows how current the picture is. First Home Improvements has 3,053 reviews in the last 12 months, Safestyle 292, Everest 201 and Coral 237, all read on 15 October 2026. A large lifetime total with a small recent figure points to a brand whose review history is mostly older than its current trading. A smaller lifetime total with a steady recent figure points to a brand whose reviews reflect recent work. Neither pattern is good or bad on its own, but the recent figure is the one that describes the company a buyer would deal with now.

The 1-star share and the reply rate to negative reviews describe how complaints are handled. The 1-star share ranges from under 1% at CR Smith to 19% at Everest, read on 15 October 2026. The reply rate to negative reviews ranges from 100% at Coral to 37% at Everest among the companies compared, while CR Smith has not replied to negative reviews at all. A high reply rate does not mean the complaint was resolved, and a low reply rate does not mean it was ignored in private. It does mean a buyer can see, in public, whether the company engages with dissatisfied customers. For a purchase of this size, that public record is one of the few pieces of evidence available before signing.

Guarantees and what happens if an installer goes bust

Guarantee lengths in this comparison run from 10 years to 12 years, according to company information as reported. Anglian offers a 10-year guarantee on windows, CR Smith offers a 10-year guarantee, Britelite offers a 10-year guarantee that transfers to future owners of the home, and First Home Improvements offers a 12-year guarantee covering the whole window including locks and frames. The length is only one part of the guarantee. The other parts are what is covered, who is legally bound by it, and whether it survives if the installer stops trading. A 12-year guarantee from a company that later enters administration may be worth less than a 10-year guarantee backed by an insurer.

Insurance-backed guarantees protect the guarantee if the installer stops trading, which matters given that Safestyle and Everest both went into administration. H.P.A.S Limited, trading as Safestyle UK, entered administration on 30 October 2023 with Interpath Advisory appointed, according to the FCA, and Anglian Home Improvements completed the purchase of its order book, brand and intellectual property on 16 November 2023, according to Interpath. Everest 2020 Limited entered administration on 24 April 2024 with ReSolve appointed, and Anglian Home Improvements completed the purchase of its order book, brand and intellectual property on 21 May 2024, according to Anglian. In both cases the brand continued under new ownership, but a buyer holding an older guarantee should check which entity is bound by it and whether an insurer stands behind it.

A transferable guarantee, such as the one Britelite offers, can matter when a home is sold, because the new owner inherits the remaining cover. A guarantee that is not transferable ends with the original buyer. Before signing, a buyer should ask for the guarantee terms in writing, ask which legal entity provides the guarantee, and ask whether it is insurance-backed. Those three questions turn a guarantee length into something a buyer can actually rely on.

Checks before you sign

Window installers in England and Wales should be registered with a competent person scheme such as FENSA or Certass, or the work needs building control approval, according to GOV.UK. Registration with a scheme is the check that the work will be certified as compliant without a separate building control application. A buyer can verify a company's registration directly with the scheme before signing. This check sits alongside the review figures, not instead of them: a company can hold a strong Trustpilot score and still need the scheme registration confirmed for the specific work being quoted.

Any firm offering finance for windows must be FCA-authorised for credit broking, and the FCA Financial Services Register should be checked before signing, according to the FCA. Contracts signed at home or online usually carry a 14-day cancellation right under the Consumer Contracts Regulations 2013, according to legislation.gov.uk. A buyer should get a written quote that sets out the window specification, the guarantee terms and the total price, and should never pay a fee to check eligibility for any grant or finance. The window grants guide on this site covers the grant side in more detail. Taken together, the review figures, the guarantee terms and these regulatory checks give a buyer a fuller picture than any single number can.

Related coverage on Kael Tripton: Window grants UK: what is real and what is finance, Loft Insulation UK 2026: Costs, ECO4 Eligibility & TrustMark Verification, Loft Insulation Cost UK 2026: Prices, Savings & Grants, ECO4 eligibility checker UK 2026: the rules that actually apply.

Frequently asked questions

What is Anglian Home Improvements' Trustpilot score?

Anglian Home Improvements holds a Trustpilot score of 3.9 out of 5 from 40,659 reviews read on 15 October 2026. Of those reviews, 60% are 5-star and 18% are 1-star, and Trustpilot shows it replied to 98% of negative reviews, typically within 48 hours.

Why do Safestyle and Everest have lower Trustpilot scores?

Safestyle holds a score of 3.2 out of 5 from 48,797 reviews and Everest 2.7 out of 5 from 13,511 reviews, both read on 15 October 2026. Trustpilot notes Safestyle has not invited customers recently, so reviews may not be representative. Both brands also went through administration, Safestyle in October 2023 and Everest in April 2024.

Who owns Safestyle and Everest now?

H.P.A.S Limited, trading as Safestyle UK, entered administration on 30 October 2023 with Interpath Advisory appointed, and Anglian Home Improvements completed the purchase of its order book, brand and intellectual property on 16 November 2023. Everest 2020 Limited entered administration on 24 April 2024 with ReSolve appointed, and Anglian completed the purchase of its order book, brand and intellectual property on 21 May 2024.

How long are window guarantees?

Guarantee lengths in this comparison run from 10 years to 12 years, according to company information as reported. Anglian, CR Smith and Britelite offer 10-year guarantees, and First Home Improvements offers a 12-year guarantee covering the whole window including locks and frames. Britelite's guarantee transfers to future owners of the home.

What should be checked before signing a window contract?

Check that the installer is registered with a competent person scheme such as FENSA or Certass, or that the work has building control approval. Check the FCA Financial Services Register if finance is offered. Contracts signed at home or online usually carry a 14-day cancellation right under the Consumer Contracts Regulations 2013.