Business Details
47 Years
experience
Premium Glazing Solutions for Homes & Businesses
Established in 1979, Holmes Graham Astraseal Ltd has grown to become one of the UK's leading manufacturers and installers of uPVC and aluminium windows, doors, and conservatories. With three manufacturing sites spanning 110,000 square feet, we combine cutting-edge technology with decades of expertise to deliver precision-engineered solutions for residential, commercial, and specialist projects. Our partnerships with industry leaders like REHAU and Eurocell ensure access to technically advanced systems, while our in-house spraying facility offers over 150 RAL colour options with a 10-year guarantee. As a fully certified fabricator, we maintain rigorous quality standards across materials procurement, fabrication, and installation.Our trade division provides nationwide delivery with 24-hour quote turnaround, and our commercial team manages large-scale projects including social housing and high-rise developments. With over 45 years of combined experience across our divisions, we prioritise innovation, safety, and customer satisfaction. Our fire door specialists lead industry safety standards, and our Specialist Projects department delivers bespoke fenestration solutions for complex architectural challenges. Every product undergoes stringent testing to ensure compliance with British standards, backed by a dedicated team of engineers, CAD technicians, and installation experts.
Services
uPVC Windows
Aluminium Doors
Fire Safety Doors
Conservatory Roofing
Commercial Glazing
Spray Painting Service
Specialist Fenestration
Trade Supply
High-Rise Solutions
Maintenance Contracts
Details
- Year established: 1979
Highlights and features
- We partner with leading systems suppliers REHAU, Smarts, Eurocell and Kawneer
- Our products are fully certified with British standards bodies
- We operate 110,000 sq ft manufacturing facilities with automated production lines
- Our fire door division leads industry safety standards development
- We provide nationwide delivery with 24-hour quote turnaround
Services
uPVC Windows
Our uPVC window systems combine thermal efficiency with security features. Available in multiple styles including casement, tilt-and-turn, and sash designs, all manufactured to British standards. Customers can choose from 150+ RAL colours with optional woodgrain finishes, backed by a 10-year quality guarantee.
Fire Safety Doors
Certified fire door solutions tested to current safety standards. Complete service from design through installation to maintenance contracts. Products undergo rigorous testing with full certification provided. Specialists in fire compartmentation for residential and commercial buildings.
Aluminium Glazing
High-performance aluminium window and door systems for modern architecture. Thermal break technology ensures energy efficiency while slim profiles maximise natural light. Suitable for both residential and commercial applications with custom colour options available.
Conservatory Roofing
Thermally efficient conservatory roof solutions including glass and polycarbonate options. Available with integrated blinds and ventilation systems. Designed to meet current building regulations while maintaining aesthetic appeal and structural integrity.
Specialist Projects
Tailored fenestration solutions for large-scale developments. Our team includes CAD technicians, structural engineers and facade specialists. Capable of managing multi-room installations in high-rise buildings with coordinated logistics and quality control processes.
Questions
What areas do you serve?
We provide nationwide supply and installation services across the UK, with particular focus on Milton Keynes, Wellingborough and surrounding regions.
Are your products certified to British standards?
Yes, all our products undergo certification through recognised British standards bodies with full documentation available upon request.
Do you offer colour customisation options?
Our in-house spray facility provides over 150 RAL colours, woodgrain foils and dual-colour options with a 10-year guarantee against fading.
What fire door services do you provide?
We offer complete fire door solutions including survey, design, manufacture, installation and maintenance contracts with full compliance certification.
How quickly can you supply trade orders?
Trade customers benefit from 24-hour quote turnaround and fast lead times supported by our nationwide delivery fleet.
Can you handle large commercial projects?
Our commercial division manages large-scale installations including social housing programmes and new build developments with 80,000+ annual installations.
Reviews (6)
Denise Pavey
Jun 10, 2022
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Couldn't believe how well these guys worked.ready to start at half 8 and worked all through the day even when the heavens opened.polite and informative from start to finish thanks guys really really pleased with the work really great finish
Amanda Matthews
May 24, 2022
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They came and fitted all new windows back in November 2021 the young lad that came was very rude because I wouldn't allow them to park there big heavy van on my driveway. He also went through my kitchen cupboard without asking. I believe he is no longer working for them. My air vents are so bloody noisy when it is windy and have complained about this since the beginning and the slats were not straight on several windows, had to have new unit put in in the dining room and have only just done that today. Still waiting for air vents and slate to be straightened up.
M. Pompey
May 07, 2022
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Well I don't do this often, but the windows I have just had from this company, seem strong and of good quality, good locking mechanism for security. However the fitters, we're tremendous workers, Aaron and Bob. Nearly every window in my property had problems, because of the structure. But Aaron and Bob ploughed through, so the windows could fit, even with the scaffold in the wrong position, they got the job done. ASTRASEAL, I hope you give them a bonus, as that 2 man team are polite and informative, they are truly an asset to your company. They really do and did work hard, above and beyond. A great team!
Jimi Hendrix
Feb 21, 2022
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My experience was very good. they turned up on time did a great job and the guy i got the front door key off was a true gent. Thank you very much guys and all the people at Astraseal.
Natalie Fletcher
Nov 08, 2021
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Absolutely love my new windows and doors. Men who came were polite and really worked hard to get it finished. Superb finish! Would recommend.
S. B.
Aug 08, 2021
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After 6 months of waiting to get the windows changed, they were finally done, the whole house, we were lucky to get really good fitters, came along and completed the job in 2 and a half days.i am very impressed with the quality of job done and very happy with the windows and doors. Windows of very good quality and have a child safety lock built into the frame. Overall very happy satisfied customer. keep up the good work Astraseal
