Aluminium Windows & Doors for the Trade
Trade supply for builders, joiners, installers and architects who need reliable lead times, expert support
and high-quality aluminium glazing—manufactured in Yorkshire.
Why Trade Customers Choose Us:
Bespoke trade discount scheme
Dedicated technical advice before you order
Free samples for surveys and client approvals
Specialist heritage and steel-look aluminium systems
Manufactured in-house in West Yorkshire
Nationwide delivery using our own vehicles
Fast-track options available on selected products
We help you get the right specification, avoid site issues, and keep your project on track
A Reliable Aluminium Partner for Trade Professionals
We supply aluminium windows and doors to trade customers across the UK, supporting everything from heritage renovations to high-end residential projects.
Whether you’re pricing a job, working through technical details, or preparing for installation, our team is here to help you get it right first time.
We work with:
- Builders
- Joiners
- Window & door installers
- Architects & designers
JOIN OUR NETWORK OF TRADE CUSTOMERS
Aluminium Windows & Doors for the Trade
Trade Discount Scheme
Rewarding Our Most Valued Trade Partners
At Marlin, we understand the importance of strong, long-term relationships with our trade customers. That’s why our Trade Discount Scheme is designed to reward loyalty, consistency, and ongoing partnership.
Contact us to check your eligibility for our Trade Discount Scheme
What You Get as a Bronze Member
- 1% Discount on Orders
Enjoy a consistent saving across your purchases, supporting profitability on every project. - Priority Trade Support
Work alongside our dedicated technical team for expert guidance on surveying, specification, and installation. - Fast & Efficient Service
Keep your projects moving with reliable lead times and nationwide delivery using our specialist vehicles. - Free Sample Service
Make confident design and threshold decisions with access to our free sampling support.
What You Get as a Silver Member
- 1.5% Discount on Orders
Enjoy a consistent saving across your purchases, supporting profitability on every project. - Priority Trade Support
Work alongside our dedicated technical team for expert guidance on surveying, specification, and installation. - Fast & Efficient Service
Keep your projects moving with reliable lead times and nationwide delivery using our specialist vehicles. - Free Sample Service
Make confident design and threshold decisions with access to our free sampling support.
What You Get as a Gold Member
- 2% Discount on Orders
Enjoy a consistent saving across your purchases, supporting profitability on every project. - Priority Trade Support
Work alongside our dedicated technical team for expert guidance on surveying, specification, and installation. - Fast & Efficient Service
Keep your projects moving with reliable lead times and nationwide delivery using our specialist vehicles. - Free Sample Service
Make confident design and threshold decisions with access to our free sampling support.
Trade Support That Saves You Time
Our trade service is built around practical support—not just supply.
From your first enquiry through to delivery, we provide:
- Guidance on product selection and specifications
- Help with detailing, thresholds and configurations
- Support during surveying and quoting
- Clear communication on lead times and delivery
You’ll deal with a team that understands aluminium glazing and the realities of working on site.
The Builder
Great quality products along with great customer service. Easy to recommend.

Classic Heritage Express
Need a quicker turnaround?
Our slimline Classic heritage aluminium doors are available on an express lead time in RAL 9005 Black—the most popular finish for steel-look designs.
Perfect for projects where deadlines are tight, without compromising on quality or performance.
Available in as little as 3 weeks.
Call us today to find out more about this trade-only service.
Nationwide Delivery, Handled Properly
We deliver to trade customers across the UK using our own specialist vehicles.
This means:
- Safer transport of glazed products
- Reliable delivery scheduling
- Direct communication with our team
- Less risk of damage or delays
Your order arrives ready for installation—when you expect it.
The Architect
“This project called for the highest quality manufacturing of the window systems and total precision installation in some very complex window surrounds. The huge glazed units on the garden elevation were originally ‘multiple’ units, but the team at Marlin re-engineered the system and allowed units to be fitted that had no intermediate mullions, enabling maximum daylight input and interruption free views out.
The whole window system and Marlin’s performance exceeded all expectations!”
Stephen F Walker – SFW Property, Chartered Architect

Capability
All Marlin trade products are manufactured from our 25,000 sq ft facility in Keighley, West Yorkshire, using modern CNC aluminium machinery and proven production processes.
That means better quality control, consistent fabrication and a team that understands the products inside out.
We’re proud to partner with builders, architects, and developers who value quality, attention to detail, and a smooth, reliable service — reflected in every installation and every review.
“Excellent experience from the first meeting to the installation. Staff were very helpful selecting the style, colour and function. We couldn’t have asked for a better window door company to work with. …the windows and doors look amazing. Thank you Adrian and crew!!!”
Karl Thompson – Craven Building Contractors Ltd
“As main contractor and site manager on this prestigious development, Marlin were chosen as supplier due to their background, input and attention to detail. On a project of this calibre, the quality of the windows and doors had to be without compromise and Marlin delivered without question. The final results speaking volumes.”
Tom Eakin, Teakin Ltd
As Seen On TV
Marlin Windows has been featured on George Clarke’s Old House, New Home, supplying glazing for carefully designed renovation projects.
George Clarke – Channel 4 Homes TV Presenter
‘Those Beautiful Doors’
Visit Us
You’re welcome to visit our showroom and manufacturing facility to discuss an upcoming project, review product details and see how our aluminium glazing is made.
Aluminium Windows & Doors for the Trade
Useful Downloads
The Marlin Windows Guide to Installation, Maintenance & Care
The Marlin Bifold Door fitting Guide
Classic Heritage Door Installation Guide
Classic Heritage Window Installation Guide
Prestige Bifold Door Installation Guide
Prestige Lift and Slide Door Installation Guide
S1 Roof Lantern Installation
Designer Door Installation
S3 Glazed Extension
Ready to Work With Us?
If you’re looking for a dependable aluminium supplier for your next project, we’re ready to help.
Call: 01535 603909
Email: sales@marlinwindows.co.uk
→ Request Samples
→ Speak to Technical Support
Get in touch / Get a quote
Call For Aluminimum Glazing Trade Prices
