10 Year Guarantee
All Windows and Doors installed by DIYUPVC (Bristol) Ltd carry a 10-year manufacturer's warranty against manufacturing defects. Associated furniture (Handles & Hinges) & glass carry a 5 -year manufacturer's warranty against manufacturing defects.
Energy Efficiency
Our A-Rated windows are accredited by the British Fenestration Rating Council (BFRC) for energy efficiency.
All our windows & doors are available in a wide selection of colours and styles.
Highest Quality Profiles / Products
Rehau UPVC, Linier UPVC, Spectus UPVC Sash Windows, Smart & Cortizo Aluminium Bifolds, Wentland Stratus Supalite & Maxilite Roofs, Xtreme Hurst & Palladio Composite Doors.
Supply only or Fitted
UPVC & Aluminium Windows, Doors and roofs throughout the UK (Mainland Only).
Most UPVC products are delivered within 10 to 15 Working days (Restrictions Apply)
Installation available within 15 miles of BS31 2AJ.
Double & Triple Glazed Windows and Doors in Bristol & Bath
UPVC & Aluminium – Supply-Only Available Nationwide | Fitting in Bristol & Bath
Welcome to DIYUPVC, the smarter way to buy new build and replacement double glazing and triple glazed windows and doors. We supply and fit high-performance UPVC and aluminium windows, composite front doors and bi-fold doors—serving homeowners, builders, and trades across Bristol, Bath, and nationwide.
Whether you’re after supply-only for DIY or trade installation, or looking for our expert local fitting service, we’ve got you covered.
Why Choose DIYUPVC?
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✅ Supply-Only Available Nationwide – Fast delivery across the UK
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✅ Fitting Services in Bristol & Bath – Experienced local installers
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✅ No Pushy Salespeople – Just honest advice and expert support
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✅ Best Price First Time – No gimmicks, no hidden extras
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✅ Energy-Efficient Glazing – Double & triple glazed options
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✅ Quality You Can Trust – Durable, secure, and regulation-compliant
Quality uPVC & Aluminium Windows and Doors – Supply Only or Fully Fitted
Whether you need supply-only or fully-fitted windows and doors, our knowledgeable and qualified team is here to help you choose the right product for your home and budget.
DIYUPVC has been supplying and fitting uPVC windows and doors online for many years. Our experience keeps us up to date with the latest advancements in the industry, ensuring we provide only the highest quality double and triple-glazed products, all manufactured to British Standards. We’ll make sure your new windows and doors complement your property, whatever its style.
We offer a wide range of finishes including Bright White, Rosewood, Mahogany, Golden Oak, Anthracite Grey, Irish Oak, Chartwell Green, Cream, and many more. Bespoke RAL colours are also available to match your specific project needs. Our products combine the benefits of modern double glazing with the traditional appearance of timber frames.
We supply top-grade REHAU Total 70C and 70S Edge profiles (Liniar uPVC available on request), featuring secure internal beading, high-security locks, low-level gaskets, and heavy-duty hardware.
If you require DocQ/PAS24-compliant products, we can help.
We also supply and fit:
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Smart and Cortizo Aluminium Bi-Fold Doors
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UPVC French Casement, Flush Sash, and Sliding Sash Windows
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Xtreme, Hurst, and Palladio Composite Doors
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Lantern Roofs, Flat Glass Roofs, Conservatories, and Supalite Tiled Roofs
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Aluspace Internal Screens, Steel-look Art Deco Doors, and Deceuninck Slider24 Sliding Patio Doors
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The latest REHAU Slinova Slimline Patio Door system
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Odd Leg Windows and Doors for park homes, mobile homes, static caravans, and garden rooms. (Swan Hatch windows for House Boats, Narrow Boats & Dutch Barges )
For advice, supply, or fitting, please feel free to contact our team.
Get a Fast, Free Quote Today
Whether you need supply-only or full supply and fit, we make it easy to get started.
📞 Call us or request a quote online – we’re here to help.
Our Products
Windows
Casement Windows, Tilt & Turn, Sliding Sash, Reversible, Bay & Bow, Flush Sash & Odd Leg. Double or Triple Glazed.
Doors
UPVC Front Doors, Back Doors, French Doors, Patio Doors, Bi-Fold Doors, Composite Doors, Slide & Fold, New Build or Replacement.
Conservatories
Victorian, Edwardian, Georgian, gable-end, lean-to, or P-shaped conservatories. Glass, Polycarbonate, or light-weight tiled, give us a call to find out more.
Glass Units
Looking For Glass On Its Own?
Double Glazed Units, Triple Glazed Units, Noise Reduction Units, Kitchen Splash Backs.
Integral Blinds
for more details.
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