
Looking to replace your windows, upgrade your doors or choose glazing for a new extension? Durajoin manufactures, supplies and installs uPVC windows and doors in London and across Greater London, with made-to-measure options designed around your property’s style, opening sizes and practical requirements.
At Durajoin, we manufacture, supply and install bespoke uPVC windows and doors for homeowners, builders, architects and developers in London and across Greater London. You can choose from different window and door styles, configurations, colours, glazing and hardware options depending on the selected system.
Not sure which style is right for your property? Speak to our team about your project and we’ll help you explore the available options.
Choose from practical and versatile window styles designed for different property types and architectural requirements. Explore uPVC Windows

A popular choice for homes, offering flexible opening options and a clean appearance.
A traditional-style option suitable for properties where you want to retain a classic appearance.
Flexible opening options that provide ventilation and convenient cleaning.
Create practical entrances and wider connections between your home and garden with a choice of uPVC door styles. Explore uPVC Doors →

Create a welcoming entrance with a choice of designs, colours, glazing and hardware.
A space-efficient option for creating wider glazed openings.
bi Folding door panels allow a wider section of the opening to be opened, making them suitable for extensions and garden-facing rooms.
Explore some of our recent uPVC doors and windows projects completed in London and across Greater London. Whether it’s bespoke uPVC doors for a period home or contemporary uPVC bifold doors and uPVC sliding doors for a modern extension, every project showcases the quality, precision and attention to detail that define Durajoin’s workmanship.



uPVC can be a practical choice for homeowners looking for durable, low-maintenance windows and doors with a wide range of styles and configurations.

Our uPVC windows and doors feature advanced thermal break systems to reduce heat loss and improve overall energy efficiency. By combining high-performance glazing with precision engineering, we help London homes and commercial properties maintain comfortable indoor temperatures and save on energy costs.

Maximising natural light and airflow is key to comfortable, inviting spaces. We guide you in selecting the right uPVC window and door styles to let in daylight and ensure proper ventilation — all fully compliant with UK building regulations and safety standards.

Quality uPVC windows and doors should be accessible without compromising performance. Durajoin works closely with you to deliver durable, well-suited solutions that fit your budget, offering honest advice and transparent pricing every step of the way.

Windows and doors are essential architectural features. Our bespoke uPVC windows and doors are designed to complement your property’s elevation, interior style, and overall aesthetics, ensuring your home or commercial space looks as good as it performs.
We take pride in delivering high-quality uPVC windows and doors in London and across Greater London, with a strong focus on craftsmanship, reliability, and customer satisfaction. Here’s what our clients have to say about their experience working with Durajoin.
Muriel Musa
Avi was very committed to ensuring that everything went smoothly from start to finish. The quality of my sliding doors is outstanding, sleek, elegant, and effortless to use. His team was dedicated, professional, and attentive to every detail. I highly recommend them.
Maria Bruguera
Once again I am very happy to leave a review for these guys. I had a small issue with my fabulous uPVC doors and within 24 hours I had somebody here sorting it out. Amazing service. Added pictures of my beautiful patio doors.
ECO BUILDING & REFURBISHMENT
Thank you Avi and Durajoin team for supplying cortizo sliding doors, slimline cortizo bifolding door and beautiful heritage windows from smart systems.
We are very happy with quick delivery and professionalism.
Will definitely recommend you.
Riccardo Facciolongo
Today, I visited the Durajoin showroom and had a very positive experience. Pyush gave a detailed and insightful presentation of the products, walking us through their key features and showing us samples. I would definitely recommend to come over and take a look!

Have a project in mind but don't know where to start? Tell us about your property, the windows or doors you are considering and what you want to achieve. We can discuss suitable options and provide a project-specific quotation.
If you’re deciding between uPVC and aluminium, the best choice depends on your property’s design, opening sizes, preferred appearance and project requirements. uPVC can be a practical option for homeowners looking for low-maintenance windows and doors with a range of styles and configurations.
Aluminium can be particularly suitable where slim profiles, larger glazed openings or a contemporary appearance are important. Already considering aluminium? Explore Aluminium Windows & Doors →
Durajoin manufactures, supplies and installs bespoke uPVC windows and doors using established uPVC systems and components from trusted industry brands. We select systems that provide the design flexibility, durability, security and performance required for different residential, commercial and architectural projects. This allows us to offer a range of uPVC window and door solutions tailored to properties in London and across Greater London.





Complete the form below to download our latest uPVC windows and doors brochure

Durajoin Aluminium Windows and Doors
Unit 606, Dephna House, 14 Cumberland Ave,
London NW10 7QL, United Kingdom
020 3576 2142
info@durajoin.com
Serving customers across Greater London, including Barking and Dagenham, Barnet, Bexley, Brent, Bromley, Camden, Croydon, Ealing, Enfield, Greenwich, Hackney, Hammersmith and Fulham, Haringey, Harrow, Havering, Hillingdon, Hounslow, Islington, Kensington and Chelsea, Kingston upon Thames, Lambeth, Lewisham, Merton, Newham, Redbridge, Richmond upon Thames, Southwark, Sutton, Tower Hamlets, Waltham Forest, Wandsworth, Westminster, the City of London, Soho, Covent Garden, Stratford, Shoreditch, King’s Cross, and surrounding areas.
Postcode areas we cover:
HA1, HA2, HA3, HA4, HA5, HA6, HA7, HA8, HA9, N1, N10, N11, N12, N13, N14, N15, N16, N17, N18, N19, N2, N20, N21, N22, N3, N4, N5, N6, N7, N8, N9, NW1, NW10, NW11, NW2, NW3, NW4, NW5, NW6, NW7, NW8, NW9, SE1, SE10, SE11, SE12, SE13, SE14, SE15, SE16, SE17, SE18, SE19, SE2, SE20, SE21, SE22, SE23, SE24, SE25, SE26, SE27, SE28, SE3, SE4, SE5, SE6, SE7, SE8, SE9, SM2, SM3, SM4, SM5, SM6, SM7, SW1, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW1A, SW2, SW20, SW3, SW4, SW5, SW6, SW7, SW8, SW9, W1, W10, W11, W12, W13, W14, W1M, W2, W3, W4,W5, W6, W7, W8, W9, WC1, WC2
We provide aluminium windows and doors supply and installation across Greater London, covering key boroughs and nearby areas.