Diamond Windows Glos Ltd
Skills
- Conservatory Installation
- Windows and Doors
- Conservatory Repairs
- Window Fitters
- Patio Doors Installation
- Fire Doors Installation
- Conservatory Glass Heat Reduction Film
- Double Glazing Repair
Customer Reviews
Write a review9.93 /10
Based on 5 reviews over the past 12 months
Quality of work
10
Reliability
10
Communication
9.8
Reviews (270)
9.67 Windows / Doors / Conservatories
Posted 10 August
New windows
Very good took great care and finish is greatJob location: GL4RBarry I10 Windows and Doors
Posted 10 August
Job Well Done!
Delighted with our new windows and door fitted by Diamond Windows Glos. Ltd. The work carried out was professional and to a very high standard. Excellent service!Verified reviewerJob location: GL110 UPVC Windows Installation
Posted 04 August
Really great workmanship.
Firstly the quote was amazingly detailed. I could see exactly where the money was being spent. Liaison for start date was great. On the day of the work the tradesmen were polite, helpful prompt and worked quietly. They seemed to work very systematically. At the end of the first day they left the house very tidy. The second day was equally smooth. I would recommend this company without hesitation.Verified reviewerJob location: GL210 Triple Glazing Installation
Posted 25 March
Great Company!
I again used Diamond Windows to fit all new 'triple' glazed replacement windows at the rear of my house. I am so pleased with the price, quality of the product, and the great workmanship. We have previously had Diamond Windows take out and replace all our front windows with 'triple' glazed replacements, and also our front door with a composite unit and I can thoroughly recommend this company to anyone looking to install replacement Windows, Doors, Conservatory Roofs etc... Great value, great product, great workmanship, and they always leave it clean!!Verified reviewerJob location: GL410 Composite Front Doors Installation
Posted 16 March
Excellent work good price
Excellent work done, in total 10 windows 1 composite door and panel, 3 normal doors and 2 lots french doorsJob location: GL410 French Doors Installation
Posted 18 October 2025
Excellent Service
Most recently Dave and Ryan have installed a set of French doors, kitchen and utility room windows for us as part of our kitchen renovation. Prior to this they had changed every other window and door on our property. We couldn’t be happier with the transformation it’s made. Dave and Ryan’s work is to a very high standard and I’d definitely recommend them to anyone. They are also very nice people who are customer friendly.Verified reviewerJob location: GL1
Photos
Company Info
Owner
Mr David Cook
Ltd Company
13 years on Checkatrade
VAT Registered
Yes: 86308920
Welcome to Diamond Windows
Diamond Windows is a local family business specializing in the supply and installation of high performance PVCu and Aluminum Windows, Doors, Porches, Conservatories. Solid Roof's, Glass Roofs, Roof lanterns
- We are a family business.
- The majority of our business comes through word of mouth and recommendations.
- We use our own professional installers, which means unlike many companies we are able to closely monitor the performance and ensure a consistent quality finish to our installations.
- We don’t operate with high pressure salespeople, as a family business we only give our customers the best products and advice at a reasonable price.
- We have built long term relationships with our suppliers so that we are able to offer the best product consistency and a good back up service.
- We offer a full comprehensive ten-year insurance backed guarantee and deposit protection as we are a FENSA registered company.
Thank you for taking the time to view our profile - we look forward to hearing from you.
Kind regards,
David Cook.
Accreditations and awards
This trade passed up to 12 Checkatrade vetting checks
Member since December 2013
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Proof of address
Financial
Qualifications and accreditations
County court judgement
Open source media
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Customer Reviews
Company trading history
Company duplication
County court judgement
Enhanced business check
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