Colins Sash Windows Reviews 201

TrustScore 4.5 out of 5

4.6

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Rated 5 out of 5 stars

The service was excellent and the windows are of a high quality, I fitted these in my victorian home and it feels much warmer and the design perfectly compliments the building. I would highly recommen... See more

Rated 5 out of 5 stars

It was a pleasure to deal with Colin and his staff. They were knowledgeable, helpful and deliver a great service for a great price. My windows - uPVC sash - look absolutely fantastic. I couldn't recom... See more

Rated 5 out of 5 stars

Great value sash upvc windows. Best price I could find. Friendly competent customer service. Easy to deal with. Lovely fitters. Fitted the windows extremely professionally and fast and cleaned up afte... See more

Rated 5 out of 5 stars

Ordered Heritage aluminium crittal style windows from Colins Sash Windows (cheaper than other companies) Small issue with beading and tight door handle, spoke to Paul who was really helpful. He... See more

Company details

  1. Window Supplier

Written by the company

Colin's Sash Windows is best known for disrupting the upvc sash window market in the UK in 2014 by introducing affordable fixed prices for upvc sash windows in the UK. Before this they were generally only available at very high prices through window installers. Today they are market leaders in cheaper alternatives to the renowned steel Crittall® interior and exterior windows and doors.


Contact info

4.6

Excellent

TrustScore 4.5 out of 5

201 reviews

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Replied to 100% of negative reviews

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Rated 5 out of 5 stars

Use this company

The service was excellent and the windows are of a high quality, I fitted these in my victorian home and it feels much warmer and the design perfectly compliments the building. I would highly recommend!

April 20, 2026
Unprompted review
Rated 5 out of 5 stars

Six years ago we purchased thirteen…

Six years ago we purchased thirteen sash windows from Colin's Sash windows.We were delighted with them back when they were installed and we enjoy them just as much now.They are very easy to clean and still in lovely condition.
We recently placed an order for a window for a garage conversion.The staff were very helpful and once again the window looks lovely.Fabulous windows and lovely helpful staff.Many thanks

February 2, 2026
Unprompted review
Rated 1 out of 5 stars

We had a very disappointing experience…

We had a very disappointing experience with Colin sash windows.
The downstairs windows were supplied after regularity changes and should have included adequate ventilation, but they did not. As a direct result, ventilation in the property was made worse, leading to on going condensation, mould growth, and damage to internal decoration.no accountability, no solution after months of communication they have demonstrated a lack of technical expertise and compliance and no regulatory awareness. Despite escalating this issue to owner Colin & co-owner John Linney, no technical or commercial resolution was offered.
I would strongly caution others to ensure compliance and ventilation are explicitly addressed before proceedings

January 26, 2026
Unprompted review
Colins Sash Windows logo

Reply from Colins Sash Windows

We are sorry to read this review. The windows supplied matched the specification of a previous order as requested. As a gesture of goodwill we have tried to work with the customer to resolve this matter and invite the reviewer to continue the discussion via the original communication channel so it can be concluded properly.

Rated 5 out of 5 stars

Steel Doors

We’ve had two sets of internal steel doors from Colin’s Sash Windows. Both times the measuring, communications, delivery and install were faultless. We would highly recommend them to anyone who’s considering it.

December 13, 2025
Unprompted review
Rated 5 out of 5 stars

This is our second order from Colin's

This is our second order from Colin's. Really good quality uPVC sliding sash windows for a very reasonable price. We were able to make so many changes to make them exactly what I wanted. They look fabulous fitted.

October 6, 2025
Unprompted review
Colins Sash Windows logo

Reply from Colins Sash Windows

Many thanks! Appreciate you taking the time to leave feedback, it genuinely helps. We look forward to no 3! Colin

Rated 5 out of 5 stars

An excellent company

An excellent product, very helpful staff and common sense to put together but would be a good idea to get someone with window fitting experience to help definitely a 2 people installation

October 25, 2025
Unprompted review
Rated 5 out of 5 stars

Great service from the team

Great service from the team, we are really happy with our aluminium French doors they are stunning. We had an issue with one of the doors but customer service sorted this straight away for us. I would recommend them.

September 26, 2025
Unprompted review
Rated 5 out of 5 stars

Amazing windows

Amazing windows, Amazing service, nothing was too much trouble even though I asked so many questions about my choice options before taking the plunge to buy, I've never installed windows prior to this but it was so easy I can't believe now having installed some that we all pay window companies so much money for a few screws and silicone, I would highly recommended these windows and the brackets and quick release sashes make it so easy.

October 22, 2025
Rated 5 out of 5 stars

I had my old sash windows replaced by…

I had my old sash windows replaced by Colin’s Sash Windows and the work was excellent. The team was on time, polite, and very tidy. The new windows look great, fit perfectly, and have made the house much quieter. I’d definitely recommend them to anyone who wants quality work done right.

October 13, 2025
Unprompted review
Rated 1 out of 5 stars

Avoid at all costs

Avoid at all costs. This was by far the worst experience we’ve ever had. The doors were not as promised, and it took four attempts before the issue was finally resolved and they still are not fully 1.5 years later. The entire process was incredibly stressful, made worse by a sales team and office staff who seemed to lack both product knowledge and any sense of customer care. We were left utterly unimpressed and extremely disappointed.

August 30, 2025
Unprompted review
Colins Sash Windows logo

Reply from Colins Sash Windows

We take all feedback seriously, but after checking our records, we cannot find any customer matching the details of this review. We also asked Trustpilot to request verification from the reviewer, but no information was provided. Without this, we’re unable to investigate further. We welcome all customers to contact us directly at sales@colinssashwindows.co.uk with their order number so we can resolve any issues. Our commitment is always to deliver quality products and excellent service.

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