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Business Details
35 Years
experience
Your Trusted Partner for Windows & Home Extensions
Established in 1991, Andy Glass Windows has built a reputation as one of Oxfordshire's premier double glazing specialists. Our directly employed team of skilled professionals delivers high-quality windows, doors, conservatories, and glazed extensions, serving homeowners and developers across Oxford, Abingdon, Bicester, and surrounding areas. With over 30 years of local expertise, we combine cutting-edge uPVC and aluminium solutions with traditional craftsmanship to enhance both aesthetics and energy efficiency.

As FENSA-registered installers and members of the Consumer Protection Association, we provide 10-year insurance-backed guarantees, free no-obligation quotes, and a comprehensive design-and-build service for home extensions. Our commitment to sustainability is demonstrated through full recyclability of old uPVC windows and ongoing staff training to maintain the highest industry standards.
Services
Aluminium Windows Composite Doors Conservatories Glazed Extensions Triple Glazing Sash Windows Bi-Fold Doors Patio Doors House Extensions Secondary Glazing
Details
  • Year established: 1991
Highlights and features
  • Directly employed team with 30+ years' local experience
  • FENSA-registered with 10-year insurance-backed guarantees
  • Free no-obligation quotes with expert design advice
  • Complete design-and-build service for home extensions
  • Recycling programme for old uPVC window replacements
Associations and certifications
  • FENSA
  • Consumer Protection Association
Services
Aluminium Windows
Our aluminium windows combine slim sightlines with exceptional durability. These energy-efficient frames resist warping and require minimal maintenance while maintaining thermal performance. Available in modern colours and finishes, they suit both contemporary and traditional properties across Oxfordshire.
Conservatories
We design and build custom conservatories using high-performance glazing systems. Options include traditional Victorian styles and modern glass-roofed garden rooms with optional WARMroof insulated panels. All structures come with 10-year guarantees and matching window/door integration.
Composite Doors
Our 100% recycled composite doors offer superior security with advanced locking systems. Available in multiple colours and finishes, these thermally efficient entrance doors maintain structural integrity in all weather conditions while enhancing property aesthetics.
Home Extensions
From planning permission to final installation, we deliver complete home extensions including single-storey rear extensions, garage conversions, and loft transformations. Our in-house tradespeople ensure seamless integration with existing structures using energy-efficient glazing solutions.
Triple Glazing
Our triple-glazed windows provide enhanced thermal efficiency and noise reduction. Using advanced gas-filled panes with low-emissivity coatings, these units help reduce energy bills while maintaining slim profiles for traditional-style properties in Oxford and surrounding areas.
Questions
What areas do you serve?
We operate throughout Oxfordshire including Oxford, Abingdon, Bicester, Witney, Chipping Norton, and Didcot with free local consultations.
Do you offer guarantees?
Yes, we provide 10-year manufacturer guarantees on white uPVC and aluminium frames, plus insurance-backed coverage through the Consumer Protection Association.
Are your installers qualified?
All our installers are directly employed and FENSA-registered, with regular training to maintain industry compliance and technical expertise.
Can I visit your showroom?
Our Kennington showroom offers appointments six days a week for product demonstrations of windows, doors, and conservatory options.
Do you handle planning permission?
Yes, we manage all planning applications and building regulation approvals as part of our complete extension design-and-build service.
What materials do you use?
We supply and install uPVC, aluminium, and composite materials with full recyclability options, ensuring energy efficiency and durability.