Business Details
Premium uPVC Windows and Doors in Belfast & Beyond
At Windowmate, we have established ourselves as a leading one-stop window and door supplier for builders, joiners, and home improvement specialists. Our commitment to quality is reflected in our exclusive use of REHAU uPVC systems, globally renowned for durability and energy efficiency, and locally manufactured by our sister company Dessian Products. With over 35 years of expertise in uPVC fabrication, we guarantee products that meet British Kitemark Standards BS 7412 and PAS 24. We serve both trade professionals and homeowners, offering a wide range of windows, doors, aluminium products, and accessories. Our branches in South Belfast, East Belfast, Fermanagh, and Cumbernauld ensure accessibility across Northern Ireland and Scotland.We pride ourselves on competitive pricing, professional advice, and a diverse selection of designs to suit residential and commercial projects. Our REHAU systems provide exceptional security, noise reduction, and thermal performance, supported by compliance with environmental standards like BS EN 14001. With showroom displays and expert guidance, we enable customers to experience the quality of our materials firsthand. Our long-standing reputation for customer service is built on reliability, transparency, and a deep understanding of local market needs. As part of the REHAU network, we combine German engineering excellence with locally tailored solutions.
Services
Casement Windows
Composite Doors
Aluminium Windows
Sliding Patio Doors
Triple Glazed Units
Glass Accessories
Roofline Products
Window Energy Ratings
Trade Supplies
Installation Services
Highlights and features
- We supply REHAU uPVC systems tested to British Kitemark Standards.
- Our sister company Dessian Products ensures local manufacturing expertise.
- Competitive pricing for trade professionals and homeowners.
- Branches in Belfast, Fermanagh, and Cumbernauld for regional accessibility.
- Showroom displays let customers experience product quality firsthand.
Services
REHAU uPVC Windows
Our REHAU uPVC windows combine German engineering with local manufacturing. Available in chamfered (TOTAL70c) and fully sculptured (TOTAL70s) designs, they meet BS 7412 standards and offer A-C Window Energy Ratings. Double or triple glazed units ensure energy efficiency, security, and noise reduction for residential and commercial properties.
Composite Doors
We supply high-security composite doors in diverse styles and colours. REHAU systems exceed PAS 24 security standards, featuring multi-point locking mechanisms. With thermal insulation and low-maintenance durability, these doors offer both aesthetic appeal and long-term performance for homeowners and trade clients.
Aluminium Products
Our aluminium windows and doors provide slim profiles with maximum glass area. Systems include bi-folding doors, sliding patio doors, and roof lanterns. Designed for thermal efficiency and weather resistance, they comply with British standards while offering modern aesthetics for contemporary and traditional buildings.
Trade Supplies
As a trade-only supplier, we offer builders and joiners complete window and door systems at competitive prices. Our stock includes REHAU profiles, glass options, and accessories. Fermanagh branch serves homeowners directly with installation services, ensuring quality materials reach both professionals and end-users.
Energy Efficiency Solutions
All products deliver superior energy conservation through REHAU's patented uPVC formulations. Windows achieve A-rated energy efficiency, reducing heating costs and carbon footprints. Triple glazing options available for enhanced insulation, meeting Part L building regulations and supporting environmentally conscious construction projects.
Questions
Do you sell directly to homeowners?
Our Fermanagh branch offers installation services to homeowners. Other branches operate trade-only for construction professionals.
What areas do you cover?
We serve Northern Ireland from South Belfast, East Belfast, and Fermanagh, plus Cumbernauld in Scotland.
What window energy ratings do you offer?
Our REHAU windows achieve A, B, or C Window Energy Ratings depending on specification.
Are your doors secure?
All doors comply with PAS 24 security standards and can achieve Secured by Design certification.
Can you supply triple glazing?
Yes, we offer triple glazed units as an alternative to standard double glazing.
Do you carry REHAU product stock?
Yes, our showrooms display full REHAU window and door ranges with immediate availability.
