Business Details
Your Trusted UPVC Windows and Doors Supplier in Southampton
Established with over three decades of expertise, Prism Windows specialises in manufacturing and installing high-quality UPVC windows, doors, and conservatories. Our products are crafted in-house at our Hedge End factory using Liniar's advanced profiles, ensuring energy efficiency, durability, and thermal performance. With a commitment to innovation, we offer made-to-measure solutions tailored to modern and traditional properties, backed by a 10-year guarantee against warping and cracking.Our team prioritises fast turnaround times, exceptional customer service, and compliance with industry-leading standards such as PAS 24 security accreditation. By combining UK-manufactured materials with cutting-edge design, we deliver products that enhance home comfort, security, and aesthetics while maintaining cost-effective double glazing solutions.
Services
UPVC Windows
Residential Doors
Conservatories
Replacement Roofs
Energy-Efficient Glazing
Custom Design Solutions
Factory Manufacturing
Installation Services
Security Upgrades
Thermal Efficiency Solutions
Highlights and features
- We have over 30 years of experience in UPVC manufacturing and installation.
- Our products are made-to-measure using UK-manufactured Liniar profiles for superior quality.
- We achieve A+ energy ratings with cost-effective double glazing solutions.
- All installations come with a 10-year guarantee against warping and cracking.
- We offer a wide range of colours and designs to match any property style.
Associations and certifications
- PAS 24
Services
UPVC Windows
Our UPVC windows combine modern design with thermal efficiency, using Liniar's multi-chambered profiles to trap warm air and reduce heat loss. Available in casement, tilt-and-turn, and bay styles, they achieve A+ energy ratings. Each window is made-to-measure, ensuring a perfect fit for both new builds and period properties.
Residential Doors
Liniar UPVC residential doors offer enhanced security and thermal performance, featuring patented co-extruded gaskets and steel-reinforced frames. Options include composite, French, and bi-fold designs in multiple colours. All doors are custom-made to complement property aesthetics while meeting PAS 24 security standards.
Conservatories
Victorian, Edwardian, and lean-to conservatories provide versatile living spaces with Liniar's thermally efficient frames. SupaLite tiled roofs ensure year-round comfort by minimising temperature fluctuations. Each structure is designed to integrate seamlessly with existing architecture, offering durability and low maintenance.
Replacement Roofs
SupaLite tiled roof systems transform conservatories into functional extensions with lightweight aluminium frames and humidity-proof insulation. Available in Tapco Slate or Extralight tiles, these roofs improve thermal efficiency and noise reduction while maintaining compliance with all building regulations for long-term reliability.
Energy-Efficient Glazing
Liniar's EnergyPlus profiles feature additional uPVC chambers to prevent cold air transfer, achieving U-values of 1.2 with double glazing. This technology reduces energy bills and enhances indoor comfort without requiring triple glazing, making it a cost-effective solution for modern homes.
Questions
What types of windows do you offer?
We provide casement, tilt-and-turn, flush sash, French, bi-fold, and bay windows in A+ rated UPVC profiles.
Do your conservatories come with a guarantee?
All conservatories include a 10-year guarantee covering warping, cracking, and structural defects.
Are your products energy efficient?
Yes, our multi-chambered UPVC profiles and double glazing achieve A+ energy ratings for thermal efficiency.
Can I customise door colours and finishes?
We offer doors in white, cream, woodgrain, and custom RAL colours with various hardware options.
How long does installation take?
Most installations are completed within 2-5 working days after order confirmation, depending on complexity.
Are you an approved Liniar fabricator?
Yes, we are one of the few licensed Liniar fabricators in the South of England.
