EXCELLENTTrustindex verifies that the original source of the review is Google. Great service, full communication and a great turn around. Would highly recommendTrustindex verifies that the original source of the review is Google. First of all, I was attracted to the quote for the bifold doors. When he came to take measurements for the doors, he was polite and friendly to talk to. He listened to exactly what we wanted and when the window arrived, it was better than I expected. I was highly satisfied with the outcome. I highly recommend this service.Trustindex verifies that the original source of the review is Google. Great product and service. Our home builder referred the company. We spoke with Avi initially, he cleared our doubts related to technical bits. We purchased a 2m*3.20m aluminium roof lantern in all black inside out frame colour. We opt with self cleaning clear active glass for the rooflight. Excellent communication from first call to final installation. Much appreciated your service.Trustindex verifies that the original source of the review is Google. Piyush and durajoin is the most professional and reliable people. He only took 20% deposit at the time of order confirmation unlike others. Very happy with the project approach and delivery. Happy to recommend. Thank you.Trustindex verifies that the original source of the review is Google. Great experience with this companyTrustindex verifies that the original source of the review is Google. Excellent service from the Durajoin aluminum windows and doors. They supplied and fitted heritage black aluminum French door along with heritage windows. Quote were reasonably affordable. Their fitters did amazing work. I would happy to recommend you guys!Trustindex verifies that the original source of the review is Google. Can't be thanks enough, thank you for supplying and installing this beautiful aluminium heritage window and doors at SouthgateVerified 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
Why City of London Properties Demand Durajoin Double Glazing
The City’s unique environment – with its conservation areas, bustling financial hubs and residential enclaves – requires windows and doors that perform exceptionally across multiple criteria:
The Square Mile’s mix of medieval lanes and glass towers demands products that respect historical integrity while delivering modern performance. Our UPVC systems achieve this balance, offering period-appropriate designs for listed buildings near St. Paul’s alongside contemporary profiles for developments like the Walkie Talkie.
With the City’s constant activity from markets, transport hubs and nightlife, noise intrusion significantly impacts quality of life. Our acoustic glazing solutions create peaceful interiors mere metres from busy thoroughfares like Cheapside and Cannon Street. Meanwhile, our advanced security features meet the needs of both high-net-worth residences and corporate HQs in this global financial centre.
UPVC Double Glazed Windows: Ideal Solutions for City Properties
Sash Windows in City of London
The quintessential choice for the City’s remaining Georgian and Victorian townhouses, our UPVC sash windows perfectly replicate traditional timber designs while eliminating maintenance headaches. Particularly suited to conservation areas around Fleet Street and Holborn, these feature:
- Authentic sliding mechanism with hidden counterbalance system
- Optional astragal bars matching original glazing patterns
- Tilt-in function for safe cleaning in high-rise conversions
Casement Windows in City of London
Our most versatile design, equally at home in Barbican flats as in converted warehouses near Smithfield Market. Key benefits include:
- 90° opening angle for maximum ventilation in compact City spaces
- Slim sightlines complementing modern architectural styles
- Enhanced security with shootbolt locking – crucial for ground floor installations
Tilt & Turn Windows in City of London
The preferred solution for City high-rises and riverside developments, offering:
- Dual-mode operation (tilt for ventilation/full opening for cleaning)
- High wind load resistance – ideal for exposed upper floors
- Optional smart glass technology for corporate installations
Bay & Bow Windows in City of London
Transforming the light dynamics of the City’s narrow townhouses, these:
- Create valuable interior space in compact properties
- Feature thermally broken frames to combat the Square Mile’s urban heat island effect
- Available with curved glazing for seamless period restorations
Premium UPVC Doors for City of London Properties
Heritage Front Doors in City of London
Making secure first impressions for residences and businesses alike:
- Reinforced frames with BS3621 mortice locks as standard
- Customisable architraves to match period doorcases
- Heritage colours matching London Stock brickwork
Sliding Patio Doors in City of London
Space-saving solutions for City terraces and balcony access:
- Flush thresholds complying with DDA regulations
- Anti-lift mechanisms for high-rise security
- Slim sightlines maximising glass area
Commercial Entrance Systems in City of London
Meeting the demands of City businesses:
- Automatic sliding options for high-traffic lobbies
- Fire-rated versions for compliance in multi-occupancy buildings
- Anti-terrorism glazing options for sensitive installations
The Durajoin Advantage for City of London Clients
Acoustic Performance
Our specialist noise reduction glazing combats:
- Low-frequency rumble from Underground lines
- High-frequency noise from emergency sirens
- 24/7 background hum of HVAC systems
Security Enhancements
Beyond standard features, we offer:
- LPS 1175-certified systems for high-risk premises
- Bomb blast-resistant glazing for sensitive locations
- Seamless integration with building management systems
Conservation Compliance
Working closely with:
- City of London Corporation planning officers
- English Heritage guidelines
- CAAC requirements for listed buildings
Partner with London’s UPVC Specialists
From initial consultation to final installation, our City-trained teams understand the unique challenges of working within the Square Mile’s constraints – including out-of-hours deliveries to avoid congestion charges and scaffold solutions for restricted sites.
Our Process
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