Colin’s Sash Windows supplied us with some internal steel Fd. When it come to getting them signed off we were informed they needed to be installed by a certified installer. We asked Colin’s about... See more
Company replied
While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more
To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more
Colin’s Sash Windows supplied us with some internal steel Fd. When it come to getting them signed off we were informed they needed to be installed by a certified installer. We asked Colin’s about... See more
Company replied
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
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
Fantastic experience with Colin's Sash Windows. On hand to help with any questions (to which there were a lot) and really went that extra mile to ensure all measurements and designs were done accurate... See more
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.
United Kingdom
Asks customers to review
This company invites their customers to review, whether positive or negative
Replied to 66% of negative reviews
Typically replies within 48 hours
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
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.

Reply from Colins Sash Windows
Absolutely thrilled with our new timber sash windows from Colin's! The craftsmanship is outstanding and they've completely transformed the look of our Victorian terrace. The team was professional throughout and the installation was spotless.
Amazing internal steel doors. Excellent service as well.
We placed and order and was told three weeks when I payed i was then told 6weeks for the aluminium windows eventually they turned up without the thebcill end caps and seals when I spoke to Elena in the office I was told to email in. Because I wasn't having it as these window were already three weeks late I was given the number of Paul Taylor there rep who saved the day as he had flow screed booked and windows needed to be in. Colins sash Perhaps you should take a leaf out of Paul's book that you are nothing without your customers.
Maybe you should let him run the show he's the only one who seems to have all the answers thank you Paul really appreciated.
This is not the first issues we've had but after continuing disappointment I feel the need to speak out
Great front-end customer care. Radina was fantastic. Quick to reply, very thorough, volunteered options & alternatives. I was never in any doubt that the order would go well. Delivered on time, no faults and best of all, the actual window quality is just excellent. Very happy and will use again
Great after sales. Replacement glass sent out promptly after failed pane
We have been working with Colins Sash Windows for the past 3 years and they are great to work with. Orders are delivered on time, great product quality and amazing customer service. Elena has been our point of contact all the time and she has been very helpful and made the order process very easy
I thought I would order a single window with this company - and then if I was happy with product and installation I would order replacements for all the windows in my house. I haven't received the window yet - delivery was just pushed back by a month (today) with no explanation - which in part explains my 1 star review. The further annoyance is that the presales service is awful - I've had to tell the person I'm dealing with at least 4 times that I want the window installed, I've given my address at least 3 times, and calling and speaking to them to provide information and ensure everything is clear didn't help. The specifications for the window I provided were agreed - and then following payment I was told that actually they can't do this and that (colours etc) and I would have to choose alternatives. By this point they had my money, their installation person had been out to measure, and I needed the window installed without delay - so proceeded. Regretting it now.
Absolutely brilliant experience very highly recommended to everyone. Paul was brilliant all in all brilliant service.
I've had 8 windows from Colin's Sash Windows and and they look brilliant. 5 of them have gone in with no issues, but when a spring broke on one of them during installation, Paul was brilliant and came out the next day to fix the issue. Can't fault their customer service!
Paul of Colin's Sash Windows came highly recommended, & thoroughly deserved it.
He was fantastic & repaired a difficult fault which others had refused to attempt.
Quick, very skilled & experienced, professional: I cannot praise & recommend him too highly. His positive "can do" attitude made him a pleasure to deal with.
I would most certainly go to him again.
Colin’s Sash Windows supplied a great product. They have been great to deal with from start to finish. Fast efficient service from placing the order to delivery.
We had a small problem with a sash spring but Paul was quick to attend and fix the problem.
Excellent company to deal with and top quality product and service. I would not hesitate to recommend.
Paul Taylor was excellent to work with. I wouldn't hesitate to recommend him. His expertise are second to none and have left us with a wonderful set of doors very well fitted.
I had Assistance and courteous service from Rodina, Ivo and Elena.
Online purchase of expensive items can be daunting but the support, continuity and attention to detail were excellent.
Issues that arose were dealt with speedily and comms were transparent and relevant.
The product when it arrived was first class and a number of people have asked me where I got them from. I have been happy to recommend and will continue to purchase from Colins Sash Windows in the future. Really pleased.
Brilliant service at a very competitive price! Paul was great at explaining any technical issues so I understood what the problem was and how it was being fixed by him and his really helpful colleague Reece. Couldn’t be happier with the result and totally recommend this company.
The expertise and attention for the details to the requirements of the installation made it hard to get things wrong
We have had Colin’s Sash windows do a few installations for us. We have found them to provide an excellent service. A very professional approach from first enquiry to finished job. Will definitely use again in the future.
Colins Sash Windows didn’t disappoint with their quality and what I envisioned for our space. But the highlight of the entire experience and probably the most important was the fitting experience and quality.
A product really speaks volumes when it’s been fitted properly by an expert and experienced team. Paul was phenomenal along with Andrew and Charlie. They arrived promptly, hardly stopped for breaks, worked through even in the rain with a smile on their faces to give me an impeccable fitting and finish. Every detail was covered and my job was a hard one, a old house with wonky walls, quirks and specialist expensive finishes and they worked around everything, mitigating where they needed to with care for my property. I could never have another fitter again and already planning to get Paul and the team back for a new project.
Would recommend Colin’s sash windows every time this is the second window I have had from this company.Excellent communication from enquiry to delivery and high quality product.Arrived within a couple of weeks of ordering and my independent window fitter was very impressed with the standard of the window.
Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.
We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.
Learn about Trustpilot’s review process.
Here are 8 tips for writing great reviews.
Verification can help ensure real people are writing the reviews you read on Trustpilot.
Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.