EXCELLENT Based on 49 reviews Posted on Angela Hooper30/09/2025Trustindex verifies that the original source of the review is Google. The aluminium windows these chaps installed haven't just made our house look a million quid, they've sorted out our energy efficiency too. Bit of an investment, but well worth every penny for the family home.Posted on Seema Sharma07/09/2025Trustindex verifies that the original source of the review is Google. We had an Amazing experience with Durajoin. We needed our windows and doors done at a very short notice, and I must admit they didn't disappoint us. Right from products, delivery, fitting, finishing everything is done to high standards. The whole team is very professional. Thanks to Piyush bhai and his team. I would highly recommend them any day.Posted on Isabelle Everington22/08/2025Trustindex verifies that the original source of the review is Google. Fantastic work. I'm so pleased with new double sliding doors and a rooflight. Piyush and his team were efficient, professional and communicative. Couldn't have asked for better!Posted on Eva Watson30/07/2025Trustindex verifies that the original source of the review is Google. Supplied sliding doors, roof lights, and windows. Delivery was rapid, kept the builders on track. Just trust me - decent price, quick service, and they make everything in-house. Drop them a line.Posted on Joshua Dawson29/07/2025Trustindex verifies that the original source of the review is Google. Getting aluminium bifold doors in London was the smartest thing we've done for our open-plan kitchen. Dead sturdy, proper stylish, and let in so much light it's transformed the whole space.Posted on Tom Morgan18/07/2025Trustindex verifies that the original source of the review is Google. The aluminium windows from this lot are bloody brilliant at keeping the noise and cold out. Barely hear a peep from outside, and the heating bills have dropped a fair bit. The team knew their stuff, turned up on time, and did a proper job. If you’re after comfort and saving a few quid, give ’em a bell.Posted on Danny Thomson17/07/2025Trustindex verifies that the original source of the review is Google. Sorted me out with a new front door sharpish. Quality’s top-notch, and measured up within days. Wouldn’t hesitate to recommend them.Posted on Elijah Barrett17/07/2025Trustindex verifies that the original source of the review is Google. Durajoin fitted aluminium windows last month. Proper made up with ’em - look smart, keep the noise out, and the insulation’s spot on. Cheers, lads!Posted on Matthew Burton11/07/2025Trustindex verifies that the original source of the review is Google. Just had a new front door fitted in my flat. Price was well reasonable, fitted to a proper high standard, and the communication was bang on throughout. Popped over to their workshop to chat about what I wanted, and the lads really knew their stuff about handles, locks, glass and all that - even helped me decide between PVC and composite. Cheers!Posted on Kyle Moore11/07/2025Trustindex verifies that the original source of the review is Google. Thank you so much for installing my bifold doors and sky light. I am very happy with the quality.I have recommended the company to others.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Premium UPVC Double Glazing Windows & Doors Suppliers in Westminster
Architecturally-Sensitive Glazing Solutions for Westminster’s Iconic Properties
Durajoin is Westminster’s trusted specialist in premium UPVC double glazing, combining heritage craftsmanship with cutting-edge performance. For decades, we’ve enhanced properties across Westminster’s diverse postcodes – from Grade I listed townhouses in Belgravia to riverside apartments in Pimlico and government buildings in Whitehall. Our bespoke UPVC systems meet Westminster’s exacting conservation standards while delivering 21st century comfort and security.

Why Westminster Homeowners Choose Durajoin
Westminster’s unique architectural landscape – where Georgian squares meet parliamentary buildings and luxury developments – demands glazing solutions that balance historical authenticity with modern performance:
The borough’s strict conservation areas (covering 75% of Westminster) require meticulous attention to period details. Our UPVC windows authentically replicate traditional timber profiles found in Mayfair’s Georgian terraces and Victoria’s Victorian mansion blocks, while eliminating rot and warping issues.
With Westminster containing some of London’s noisiest areas (from Parliament Square protests to Knightsbridge nightlife), our advanced acoustic glazing creates peaceful interiors. Triple-glazed options are particularly effective for properties near major transport hubs like Victoria Station or along flight paths to London Heliport.
Westminster-Approved UPVC Window Styles
Heritage Sash Windows in Westminster
The gold standard for Westminster’s period properties:
• Precision-engineered to match original 19th century proportions
• Slim-profile astragals meeting Grosvenor Estate guidelines
• Counterbalance mechanisms eliminating draughts in Belgravia’s squares
Westminster Casement Windows in Westminster
Adaptable solutions for diverse properties:
• Flush-fitting designs for conservation-sensitive areas like St. John’s Wood
• Reinforced hinges handling Westminster’s microclimate (river mists + urban heat)
• Optional leaded lights for Arts & Crafts properties in Little Venice
Security-Grade Tilt & Turn in Westminster
Preferred by Westminster’s diplomatic residences:
• PAS24-certified versions for embassies and ministerial homes
• Bomb-blast resistant glazing options near government buildings
• Discreet ventilation perfect for Eaton Square’s high-value residences
Statement Bay Windows in Westminster
Enhancing Westminster’s distinctive Victorian terraces:
• Structurally-engineered for projecting bays in Pimlico’s grid
• Thermal break technology combating heat loss in tall townhouses
• Custom curvatures matching original architectural drawings
Westminster-Specific UPVC Door Solutions
Period-Appropriate Front Doors in Westminster
Meeting Westminster’s strict street-scape policies:
• Authentic Victorian/Georgian panel designs with modern security cores
• Heritage colour matches for Chelsea’s Cheyne Walk hues
• Police-approved multi-point locking for central London security
Garden Access Solutions in Westminster
Maximising light in Westminster’s unique properties:
• Slim-frame bifolds for Chelsea’s walled gardens
• Soundproofed French doors for Thames-facing apartments
• Listed-building compliant patio doors for conservation areas
Mews House Specialists in Westminster
Tailored solutions for Westminster’s iconic cobbled lanes:
• Compact vertical sliders for narrow lightwells
• Space-saving pocket door systems
• Coach-house style double doors with authentic hardware

The Westminster Advantage
Conservation Area Expertise
- Close work with Westminster City Council planners
• Materials matching original fabric in listed buildings
• Specialist installers familiar with Article 4 directions
Diplomatic District Security
- Enhanced protection for SW1’s embassy quarter
• Discreet ballistic glazing options
• Surveillance-friendly glazing for government buildings
Microclimate Performance
- UPVC formulated for Westminster’s urban heat island effect
• Anti-condensation systems for riverside properties
• Pollution-resistant finishes for busy thoroughfares
Westminster Installation Excellence
Our Westminster-trained teams specialise in:
• Out-of-hours working in sensitive locations
• Scaffold-free installations using podium systems
• Minimal disruption for residential squares
Our Process
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