Fortis Windows Limited

5/5 based on 251 reviews
Latest Reviews
The team at Fortis are fantastic. The install on my property wasn’t straight forward for various reasons (a beehive being one of them..)

They were super flexible with timeframes and had reordered glass because it was up to standard before they even arrived on day 1

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.

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.

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.

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.

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 .

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!).

Seriously though I could not be any more pleased.
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)

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.

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
Excellent job well done by these guys a big shout out to Danny and Steve
google.com
Source: google.com
I found the installers to be very efficient and considerent of surroundings, well done, would use again
google.com
Source: google.com
I had two windows replaced.

Very reasonable, arrived on time, cleared away all rubbish.
A pleasure to deal with, many thanks.
google.com
Source: google.com
Excellent and fast service and did a great and clean job of fitting a new front door.
google.com
Source: google.com
Very pleased with the glass sliding doors. Installation was professional and the fitting by Dave was excellent
google.com
Source: google.com
Fortis recently helped me get a new front window arranged when our window frame was damaged from attempted burglary. I decided to upgrade our front door at the same time to make the house more secure and draft proof. They were kind and patient with me when I needed to re arrange the fitting appointment twice due to bereavement and the poor weather. The guys who came were polite, professional, efficient and did a great job fitting the new window and door. They also cleaned up properly after themselves. The new front door and laminated windows look very smart and are high quality, secure and fitted perfectly. The front door feels very solid, high quality and draftproof. I feel this is a very worthwhile upgrade and has increased the safety and security of the house. I am very pleased with the Fortis products and service. Thank you very much.
google.com
Source: google.com
Highly recommend this company. They cane the same day to quote and did the job the next morning. Really great service and Dave even fixed my blinds for me. Thank you so much.
google.com
Source: google.com
Great work, great communications, and great quality, recommended!
google.com
Source: google.com
Fantastic install from quote to completion. The team were courteous and professional throughout super clean and super efficient. 100% would recommend.
google.com
Source: google.com
We can highly recommend Fortis Windows who very recently carried out the replacement of 10 new windows for us.
From initial enquiry, Fortis quickly provided us with a competitive quotation followed by a site survey and then installation of the windows all in double quick time.
The installation and quality of work is first class, thank you.
google.com
Source: google.com
One double glazing unit replaced and a faulty window opening repaired (not installed by Fortis). Could not wish for a more professional and friendly company
google.com
Source: google.com
Great experience for my first time using Fortis. Very helpful on the initial call and great communication over WhatsApp from Pam to arrange the visit to complete the works, which were all done quickly and professionally. Took a week or so for the invoice to arrive to make payment but cost was very reasonable and online payment very easy. Will definitely come back in the future. Thanks
google.com
Source: google.com
Fortis have just replaced our front and back doors along with six windows, we are delighted with the results. Their service has been excellent throughout the process. Graham completed the survey and Ste, Danny and Charlie fitted the windows and doors. The work was completed to a high standard and it was a pleasure to have them in our home. They respected our property and cleaned up at the end of each day. Highly recommended.
google.com
Source: google.com
Very pleased with my new windows and French doors with Juliet balcony, from start to finish the lads were very professional and friendly, cleaned up well after , excellent job all round would definitely recommend
google.com
Source: google.com
Used them again for replacing my patio windows following an attempted break in. They were quick to respond and offered quotes for upgraded glass and considered other options but in the end they recommended a solution which was fast, efficient and provided an ideal upgrade to improve security. There was no pressure or upselling just good sound advice at a reasonable price.
The fitters did a great job very quick, neat and tidy. They took away the boarding cleaned and hovered all the glass bits away. Highly recommend them.
google.com
Source: google.com
So we decided that it was time to replace all of the windows at the rear of our house AND a new kitchen door. We had a few quotes and we decided to go with Fortis. Fortis provided a truely professional service and we are well pleased with what has been provided.
google.com
Source: google.com
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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.