Our Story


SUNUK Window & Glazing is a leading UK-based specialist in premium thermally broken aluminium windows, doors, and glazing solutions. Driven by a commitment to superior craftsmanship, energy efficiency, and customer satisfaction, we deliver bespoke fenestration products engineered to elevate homes and commercial properties across the United Kingdon.


Our Expertise: Advanced Thermal Break Technology
At the heart of our product range lies cutting-edge thermally broken aluminium systems. By incorporating a high-performance insulating barrier within the aluminium profiles, we dramatically reduce heat transfer, eliminate cold bridging, and significantly enhance thermal efficiency. This translates to:
✅ Reduced Energy Bills – Minimise heat loss in winter and keep interiors cool in summer.
✅ Enhanced Comfort – Eliminate drafts and maintain consistent temperatures year-round.
✅ Superior Condensation Control – Protect against moisture damage and maintain clear views.
✅ Robust Durability – Benefit from the strength, low maintenance, and longevity of premium aluminium.


Full-Service Excellence: From Concept to Completion
SUNUK Window & Glazing provides a seamless, stress-free experience through our comprehensive “One-Stop Solution”:


Precision Surveying: Our certified experts conduct meticulous on-site measurements, ensuring perfect fit and optimal performance.
Tailored Design Consultation: We collaborate with you to select styles, finishes, and glazing options that match your vision and property’s architecture.
Efficient Logistics & Delivery: We manage timely transportation of your products with care across the UK.
Professional Installation: Our skilled, insured installation teams guarantee flawless, clean, and disruption-minimised fitting.
Dedicated After-Sales Support: Enjoy lasting peace of mind with our responsive customer service and reliable warranty backing.
Why Choose SunUK Window & Glazing?


Engineered for the UK Climate: Our systems are rigorously tested to withstand British weather extremes while delivering exceptional insulation (U-values).
Quality Without Compromise: We source high-grade materials and utilise precision manufacturing for lasting beauty and performance.
Security Focused: Integrated multi-point locking systems provide enhanced peace of mind.
Aesthetic Versatility: Choose from contemporary or traditional designs in a wide range of RAL colours and finishes.
Customer-Centric Partnership: Your satisfaction drives our process. We provide clear communication, transparent quotes, and unwavering support.
Invest in Lasting Quality, Efficiency, and Style.
Discover the SunUK Window & Glazing difference – where innovative aluminium technology meets British craftsmanship and unparalleled service. Contact us today for a consultation and transform your property with windows and doors built to perform.