Business Details
Expert UPVC Windows & Doors in Southampton
Established over three decades ago, Prism Windows has become a trusted name in the manufacturing and installation of high-quality UPVC windows, doors, and conservatories. Our commitment to excellence is reflected in our in-house production processes, which ensure fast turnaround times and exceptional customer service. We utilise Liniar UPVC profiles, renowned for their energy efficiency and durability, achieving A+ Window Energy Ratings with double glazing. Our products are designed to meet the highest standards of thermal efficiency, security, and aesthetic appeal, offering solutions tailored to both modern and traditional properties. With a 10-year guarantee on all products, we provide peace of mind against warping and cracking. As one of the few approved fabricators in the South, we combine technical expertise with a wide range of customisable options, including colours and designs that complement any property.Our team of professionals brings extensive industry experience to every project, ensuring made-to-measure installations that enhance comfort, safety, and energy conservation. We pride ourselves on delivering innovative solutions that transform homes into more livable, efficient spaces. Our dedication to customer satisfaction is evident in our comprehensive service approach, from initial consultation to final installation. This combination of quality, experience, and service has solidified our reputation as a leading provider in the home improvement sector.
Services
UPVC Windows
Doors
Conservatories
Replacement Roofs
Composite Doors
French Doors
Bi-Fold Doors
Casement Windows
Tilt and Turn Windows
Bay and Bow Windows
Highlights and features
- We have over 30 years of experience in UPVC manufacturing and installation.
- Our products are made in-house with a fast turnaround time.
- We use Liniar UPVC profiles for superior energy efficiency and security.
- All installations come with a 10-year quality guarantee.
- We offer made-to-measure solutions tailored to your property's design.
Services
UPVC Windows
Our UPVC windows combine modern innovation with traditional design elements to deliver superior thermal efficiency and security. Using Liniar's multi-chambered profiles, these windows achieve A+ energy ratings while maintaining aesthetic flexibility. Available in casement, flush sash, tilt and turn, and bay configurations, our solutions cater to both contemporary and period properties. Each installation is made-to-measure, ensuring perfect fit and optimal performance for residential properties across Southampton and surrounding areas.
Conservatory Roofs
Transform your conservatory into a year-round living space with our SupaLite tiled roof systems. These lightweight, thermally efficient solutions eliminate temperature extremes while maintaining structural integrity. The aluminium frame and humidity-proof insulation provide noise reduction and weather protection, with custom tile options to match your home's exterior. Our replacement roofs convert existing conservatories into functional extensions, combining practicality with aesthetic appeal for homeowners seeking enhanced usability.
Composite Doors
Our composite doors offer enhanced security and thermal performance through multi-material construction. Featuring Liniar's extruded uPVC frames combined with GRP skins and timber cores, these doors achieve PAS 24 accreditation. Available in multiple colours including woodgrain effects, they provide durable, low-maintenance solutions that resist warping and fading. Each door is custom-made to specification, ensuring perfect integration with existing window systems while improving property aesthetics and energy efficiency.
Bi-Fold Doors
Create seamless indoor-outdoor living spaces with our bi-fold door systems. These multi-panel designs fold neatly to open 90% of the aperture, maximising accessibility and natural light. The thermally broken profiles maintain energy efficiency while the high-security locking mechanisms ensure safety. Ideal for modern homes seeking contemporary architectural features, our bi-fold solutions combine functionality with minimalist design aesthetics to transform living spaces.
Conservatory Installations
We design and install custom conservatories that extend living space while maintaining energy efficiency. Using Liniar's thermal twin-walled top caps, our structures retain heat effectively throughout the year. Available in Victorian, Edwardian, and lean-to styles, each conservatory combines traditional elegance with modern performance. The made-to-measure approach ensures perfect integration with existing properties, creating versatile spaces suitable for relaxation, work, or entertainment purposes.
Questions
What guarantees do you offer on your products?
All our products come with a 10-year guarantee covering warping, cracking, and material defects.
Are your windows and doors energy efficient?
Yes, our Liniar systems achieve A+ Window Energy Ratings with standard double glazing.
How long does installation typically take?
Most installations complete within 2-5 working days after manufacturing, which takes 2-4 weeks.
Do you offer custom design options?
We provide made-to-measure solutions with multiple colour and style choices for all products.
Are your products secure?
Our doors meet PAS 24 security standards, and windows feature multi-point locking systems.
Can you replace existing conservatory roofs?
Yes, we install SupaLite tiled roofs that transform conservatories into year-round extensions.
