We design, fabricate, and install aluminium windows and doors across Orpington. Every system is tailored to fit, measured on site, and installed by trained professionals. There are no off-the-shelf frames and no subcontracted labour.
Whether you are refurbishing a detached home near Green Street Green or building a modern extension in Petts Wood, we deliver glazing that looks sharp and performs under real conditions.
Transform Your Space! Call Us: 0203-576-2142
Aluminium is strong, sleek, and durable. It allows for thinner frames, larger panes, and better design flexibility than timber or uPVC. Our systems come with thermal breaks, high-spec glazing, and full perimeter seals. These reduce heat loss, prevent cold bridging, and eliminate water ingress.
All frames are made to order. We measure and fit everything for a perfect match. There are no gaps, filler panels, or visual compromises.
This approach reduces air leaks, lowers energy bills, and enhances long-term value.
We offer a full suite of aluminium glazing products, all made to measure.
Windows:
Doors:
You choose the finish, colour, glass spec, and opening style. We fabricate to your specification and install it with precision.
You deal with one team from start to finish. We measure, fabricate, deliver, and install without handing the job to third-party crews.
All installations are carried out by DuraJoin-trained technicians. This guarantees consistency and control. It also removes delays, excuses, and finger-pointing.
Your installation is booked on a fixed date. Work is completed in one to three days, depending on the scope. We remove old frames, fit the new system, seal everything, and clean up before we leave.
We confirm every detail before fabrication begins. There are no guesswork fits or design errors.
We do not force modern frames into period homes or cut corners on new builds. We assess the property first and design accordingly.
For older properties near Orpington High Street, we offer slimline heritage windows that replicate traditional profiles with modern performance. For extensions and contemporary homes, we install wide-span doors with flush thresholds and seamless finishes.
Colours can match your existing window frames or contrast for effect. Choose any RAL shade, including dual-colour finishes.
All glazing is fabricated for your property, your dimensions, and your project timeline.
Standard replacements and extensions usually fall under permitted development. Planning permission is not required unless you are changing the style or size of the window or door openings.
If your property is in a conservation area or you live in a listed building, approval may be required. We will verify this before starting your project.
Where planning or building control sign-off is needed, we supply full specifications, technical drawings, and section details to support the application.
If your property is leasehold or part of a managed development, we help you meet approval requirements.
Yes. We build frames to match your existing openings. We can also help you increase sizes where structurally possible.
Yes. Our systems meet or exceed UK thermal standards. We use thermally broken profiles and high-performance glazing.
Yes. We can phase the installation to suit your timeline and budget.
Yes. Acoustic, laminated, and solar control options are available on all systems.
One to three days for most projects. We confirm your timeline during the quote process.
Yes. All installs are backed by product and workmanship guarantees.
EXCELLENT Based on 44 reviews 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. 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. 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! 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! 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. Russell Leonard10/07/2025Trustindex verifies that the original source of the review is Google. We replaced every window in the house with new aluminium double-glazed ones. The price was fair, delivery was bang on time, and the installation was careful and tidy. No complaints at all. V Raj08/07/2025Trustindex verifies that the original source of the review is Google. My family love our new installed windows and doors from Durajoin. Best aluminium windows and door suppliers in London. Highly recommend. Tony Murati02/07/2025Trustindex verifies that the original source of the review is Google. Best double glazed windows and doors supplier in Ealing. Angel Robertson13/06/2025Trustindex verifies that the original source of the review is Google. Had a new front door installed at my gaff. Quality door and top-notch fitting. The blokes were quick to get back to me and came round to measure up in a couple of days. Barry Loons04/06/2025Trustindex verifies that the original source of the review is Google. I'm absolutely thrilled with my new bifold doors and skylight! The installation was done beautifully, and the quality is outstanding. I've already been telling friends and family about your fantastic service!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
We are not middlemen or window resellers. We are fabricators and fitters. Every system we install is made to order and installed by our own team.
You get:
Reliable post-install support
We do not outsource. We do not guess. We deliver aluminium glazing that works.
If you are planning a glazing upgrade in Orpington, we are ready to help. From single-room refits to full property glazing, we measure, build, and install without confusion or delays.
Let us quote your project. We will walk you through your options, confirm all specs, and book the work at your pace.
Call us today: 0203-576-2142
Email : info@durajoin.com
You can also request a callback using the form below. We respond within one working day.