Fortis Windows Limited

5/5 based on 245 reviews
Latest Reviews
The whole process from measuring to fitting was excellent. The fitting of new patio doors and replacing 11 windows only took 5 hours start to finish. The whole experience was excellent.
google.com
Source: google.com
Absolutely delighted with our new Rockdoor fitted by Fortis. Great communication throughout the whole process from order to fitting . The Fortis team arrived on time, did an amazing job of fitting the door, took the old door away and left the area immaculate. First class service and we will definitely be using this company again and highly recommend to others. Thank you.
google.com
Source: google.com
Fortis Windows did a fantastic job replacing our window panes.<br>We live in a listed building and the frames themselves cannot be replaced/damaged. We also live on the 2nd floor so this added to the complexity of the job! But as you can see from the before and after pictures, they did an amazing job. Dave and Charlie were super professional and they also did a great job cleaning up at the end. I would highly recommend this company!
google.com
Source: google.com
Came on time, were very friendly and polite, took care passing through the house. The job was completed well and thoroughly with a great deal of experience and undid my doors. They also answered my various questions about the installation. Thank you
google.com
Source: google.com
Very professional, gave lots of constructive guidance on the benefits of different options during the initial visit.<br><br>The installation team were extremely polite, professional and very tidy.<br><br>Extremely happy with the Team, communications and my new Bi-Folding doors.
google.com
Source: google.com
Excellent service from start to finish can not fault this company<br>Really pleased with the finished look
google.com
Source: google.com
Fortis replaced all the windows in the house. The job was competitively priced. The team that fitted the windows were on site on time, worked solidly throughout the day without stopping and left the house clean and tidy. Really pleased with the results - thank you Fortis
google.com
Source: google.com
Fortis windows replaced all the windows, and exterior doors to our cottage. I chose them because they are local, the price was competitive, and importantly, had excellent reviews.<br>I was not disappointed with the results.<br>They conducted the job in a professional manner, always keep us informed of when they were coming, and the fitment date.<br>The lads kept on top of the dust and debris, and cleaned up before they left.<br>After fitting the lads showed us how to operate the windows and doors, which was nice.<br>I'm very happy with the results, and can't thank the fitters Danny and Steve, John who managed the job, and Pam in the office who kept us informed of installation dates.<br>Excellent job, well done.
google.com
Source: google.com
Suberb service from quotation to fitting. The quality and fit of the windows/doors is fantastic as are the fitters who are careful with existing decoration and are clean and tidy, they always do a phenomenal job, thankyou all at Fortis, would definitely recommend
google.com
Source: google.com
Quality service from the day the surveyer called to the day of fitting the window and doors..<br>Quality UPVC windows.....<br>Local company with quality.<br>Give them a call<br>5☆
google.com
Source: google.com
Excellent service repairing my bi fold doors
google.com
Source: google.com
Great customer service. From start to finish all the team were professional, from the initial consultation with John to the work being completed by the guys. Any issues were dealt with straightaway and communication was second to none. My house looks fab with new windows, French doors, fascia's, soffits and gutters. I love it! Would highly recommend Fortis Windows.
google.com
Source: google.com
John and the team did a great job changing the window and replacing another blown unit on another window. Polite, efficient and a pleasure to deal with. Would definitely recommend.
google.com
Source: google.com
We found this company on the rock door website as an official installer and never regretted a moment of choosing them they made it so simple from start to finish nothing was to much trouble expertly measured and fitted the guys came on time and did an exceptional job I would highly recommend them well pleased
google.com
Source: google.com
Cannot fault the service that this company gives.from coming out and measuring and quote to finishing the job.
google.com
Source: google.com
Windows installed quick and efficiently and just as I wanted. Quick turnaround from measuring up to fitting the windows. Could not fault.
google.com
Source: google.com
The team at Fortis are fantastic. The install on my property wasn’t straight forward for various reasons (a beehive being one of them..)<br><br>They were super flexible with timeframes and had reordered glass because it was up to standard before they even arrived on day 1<br><br>Would highly recommend
google.com
Source: google.com
Excellent company, very nice staff, professional and prompt. Did a fantastic job. Would definitely recommend.
google.com
Source: google.com
We had a positive experience with Fortis and would strongly recommend them.<br><br>We had a few uncommon specifications, like acoustic glass and trickle vents, and John listened carefully and helped us with thoughtful suggestions. The quote was competitive, quick and comprehensive. Making final-details arrangements and booking was smooth.<br><br>The installation teams were always timely, tidy, and very friendly; they did a great job - the window units themselves are tidy and well fitted; they insulated the bottom of a bay window and it's a really good job, it's a big piece of insulation, but cut and fitted in such a way that you can't see it unless you're looking for it. They supply tracking when they're on their way to you, which was a nice touch.<br><br>We had two snagging issues relating to manufacturing rather than fitting, but the real test of customer service is what happens when things go wrong, and Fortis were excellent. There was a manufacturing defect and separately a slight cosmetic blemish. The manufacturing defect was remediated as fast as a new one could be manufactured, and the minor blemish - within discretionary general guidelines perhaps another fitter would have availed-upon - they also resolved very speedily, on the premise they wouldn't be happy with it in their own home either. Good people.<br><br>Finally, a few weeks after the installation we had some follow-up questions that weren't issues or snags as such, but an inquiry about a part of the window mechanism, which they again promptly and helpfully answered.
google.com
Source: google.com
We recently had some replacement windows fitted and couldn’t be happier with the results. The team arrived on time, worked efficiently and left everything spotless afterward. The windows look great and have really improved the overall appearance of our home. We highly recommend Fortis Windows. Great craftsmanship and excellent customer service..
google.com
Source: google.com
Great job- prompt service-clean tidy .<br><br>No hesitation to recommend
google.com
Source: google.com
Really impressed with the service from Fortis. Clear communication throughout, high-quality work, and a great team to deal with. The doors look fantastic. Would definitely recommend.
google.com
Source: google.com
Quick response to request for information and then quick appointment to complete the service. Great communication throughout and return visit to complete work carried out very quickly! Highly recommend!
google.com
Source: google.com
Absolutely Brilliant work done by Fortis windows to install a new front door and a double glazed window to my house in Ramsbottom. Dave and Charlie did a first class job (maybe it was the chocolate biscuits that kept them going!).<br><br>Seriously though I could not be any more pleased.<br>I had a very old front door and I know it wasn't a straight forward job to replace but the work carried out is outstanding. I decided to opt for the "Rock door" which is a bit more expensive than the average but the build quality is superb and looks fantastic ( see photo)<br><br>Excellent communication from start to finish from 1st contact to finishing the job. And a very competitive price. I would completely 100% recommend this company.<br><br>Thank you guys and girls (Pam) for being brilliant at your work!
google.com
Source: google.com
Excellent, experienced and professional team from Fortis Windows completed a service on both my external UPVC Doors. 1 door nearly 20-years-old and the other 5-years-old. Both doors now operate as good as the day they were installed - will use Fortis Windows for all future jobs
google.com
Source: google.com
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Latest Reviews
Latest News & Updates

A New Era for Fortis Windows
12/06/2025

There’s something new at Fortis Windows, and it’s big news for homeowners. They’ve teamed up with Liniar, the UK’s most technically advanced uPVC window system, to bring you an extra range of high-quality... Read article
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Latest Feedback

In December 2020
H L Ashton said

Good workmanship - impressice on looks, price. All work carried out was very clean.