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Business Details
34 Years
experience
Trusted uPVC Windows & Doors in Coventry
Established in 1992, Windseal Double Glazing has built a reputation as a trusted family-run business specialising in high-quality uPVC windows, doors, and conservatories. Our commitment to professional service and energy-efficient solutions has earned us FENSA certification and UK Trade Confederation approval, with all installations backed by an insurance guarantee. We manufacture every product in-house at our Coventry facility, ensuring bespoke designs tailored to individual customer needs. Our team prioritises customer satisfaction through transparent advice, minimal disruption during installations, and post-service follow-ups. With decades of combined experience, we deliver durable, thermally efficient solutions that enhance home comfort and security.

Our work has earned consistent recommendations from local homeowners, reflected in numerous testimonials praising our reliability, craftsmanship, and competitive pricing. We maintain rigorous quality standards across all projects, from single window replacements to full conservatory installations. Our dedication to innovation ensures our products meet modern energy efficiency requirements while preserving traditional aesthetics where needed. By handling every stage of production and installation ourselves, we guarantee consistent quality control and accountability. This approach has solidified our position as Coventry's leading choice for double glazing solutions.
Services
uPVC Windows Composite Doors Conservatories Bi-folding Doors Porches Patio Doors Aluminium Bi-folding Doors Orangeries Window Repairs Door Replacements
Details
  • Year established: 1992
Highlights and features
  • 30+ years of specialist double glazing experience since 1992
  • FENSA-certified installations with insurance-backed guarantees
  • Energy-efficient A+2 rated windows and doors
  • Bespoke manufacturing at our Coventry production facility
  • Personalised service with post-installation follow-ups
Associations and certifications
  • FENSA
  • UK Trade Confederation
What people say
Personalised service Excellent workmanship Prompt installation Energy savings Professional team
Services
uPVC Windows
Our A+2 rated uPVC windows combine thermal efficiency with security features including multi-point locking systems and reinforced profiles. Manufactured in Coventry, they feature five-chamber designs for superior insulation and come in various styles like casement, tilt-and-turn, and traditional sash. Each installation includes energy-saving glass units with argon gas filling for optimal performance.
Composite Doors
Durable composite doors offer enhanced security with GRP outer skins and insulated foam cores. Available in traditional and modern designs, they include safety glass, adjustable hinges, and high-security locking mechanisms. Options include stable doors and custom colour finishes to match property aesthetics while maintaining energy efficiency.
Conservatories
Bespoke conservatories feature thermally efficient frames and roofing options including polycarbonate or self-cleaning glass. We offer full installation with warm flooring systems and optional Equinox tiled roofs. Designs accommodate various uses from living spaces to home offices, with insulation and damp-proofing included in all builds.
Bi-folding Doors
Aluminium and uPVC bi-folding doors provide seamless indoor-outdoor transitions with low thresholds and multiple opening configurations. Available in various colours, they include security locks and energy-efficient glazing. Ideal for patios, extensions, and commercial spaces requiring maximum light and space.
Window Repairs
The Window Surgeon division specialises in uPVC repairs including condensation removal, hinge replacements, and handle fixes. We supply spare parts and perform on-site adjustments for broken units, locks, and hardware. Services cover Coventry and Warwickshire with next-day part availability.
Questions
Are your installations FENSA certified?
Yes, all our window and door installations come with FENSA certification and insurance-backed guarantees for compliance and quality assurance.
Do you offer energy-efficient options?
We provide A+2 rated uPVC windows and Energy Saver doors with thermal insulation features to reduce energy bills and improve home comfort.
Can I get bespoke designs?
Yes, we manufacture made-to-measure windows, doors, and conservatories at our Coventry facility to match specific size and style requirements.
What areas do you serve?
We operate across Coventry, Warwickshire, Leamington, Nuneaton, and surrounding areas with localised knowledge and service availability.
Do you handle repairs and spare parts?
The Window Surgeon division provides uPVC repairs, condensation removal, and spare parts supply with next-day availability for many components.
Is there a guarantee on installations?
All work includes an insurance-backed guarantee, with certification and guarantee documents typically arriving within a week of completion.