OXFORDSHIRE’S TRUSTED WINDOW & DOOR SPECIALISTS

Premium Windows and Doors in Oxfordshire

Upgrade your home with quality windows and doors Oxfordshire that homeowners can trust. With over 50 years of experience, CN Glass combines expert craftsmanship, honest advice and tailored installation from our family-run Banbury factory. From energy-efficient replacement windows to statement entrance doors, we make improving your home simple and stress-free.

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50+ Years

Of Experience

Family-Run

Second Generation

FENSA Registered

Installation Specialists

WINDOWS AND DOORS FOR EVERY HOME

Comprehensive Window & Door Solutions Across Oxfordshire

Every home is unique, which is why we supply and install a complete selection of high-performance double glazing and custom windows & doors Oxfordshire homeowners can rely on to enhance energy efficiency, home comfort, and security. From historic cottages in Oxford to contemporary architectural builds across Oxfordshire, our bespoke solutions fit your exact requirements.

White-framed window overlooking the garden

High-Performance Windows for Oxfordshire Homes

Upgrading your windows is one of the most effective ways to lower heating bills, eliminate cold drafts, and improve overall living space comfort. All our windows feature advanced low-E glass options, impressive Window Energy Ratings (WER), and multi-point locking systems as standard to keep your property warm and secure.

  • Casement Windows: Hinged at the top or side to open outward, casement windows provide versatile ventilation, excellent weatherproofing, and classic design flexibility for any house.
  • Tilt & Turn Windows: Ideal for modern properties or upper floors, these dual-functioning frames tilt inward for safe daily ventilation or swing open fully from the side for effortless cleaning.
  • Traditional Sliding Sash Windows: Designed to replicate classic Georgian and Victorian architecture, our sliding sash windows Oxfordshire feature slim sightlines and smooth sliding operation without sacrificing thermal insulation.
  • Flush Sash & Timber Windows: Perfect for historic buildings and conservation areas, flush sash options sit neatly within the frame to deliver beautiful aesthetics with low maintenance requirements. Modern engineered timber options resist twisting or swelling while providing classic natural beauty.
  • Beautiful Bay Windows: Create extra internal space and maximise natural light in your lounge with tailored bay windows engineered for maximum thermal efficiency.
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Glazed folding doors overlooking a garden

Secure & Stylish Doors in Oxfordshire

Your doors play a vital role in home security, insulation, and initial kerb appeal. CN Glass offers a wide range of doors manufactured to the highest standards, ensuring a perfect fit for every entryway. Frame materials, colours, and finishes can be customised for aesthetic preferences.

  • Composite Doors: Combining a robust solid timber core with durable, weather-resistant outer layers, our composite doors Oxfordshire offer unmatched structural strength, superior multi-point locking systems, and superb thermal insulation.
  • uPVC Doors: Highly practical and cost-effective, modern uPVC doors offer exceptional thermal insulation, complete draught protection, and low maintenance performance for busy households. In addition, uPVC mimics woodgrain and is a cost-effective option for heritage applications.
  • Aluminium Bi-Fold Doors: Transform your home by opening up entire exterior walls. Aluminium bifold doors utilise slim frames and structural strength to maximise natural light and seamlessly join your internal living space with the garden.
  • French Windows & Sliding Patio Doors: Add classic glamour or modern functionality. Our sliding doors can feature up to six glass panels that glide effortlessly on hidden tracks, offering wide, expansive views of the outdoors.
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OUR DIFFERENCE

Why Choose CN Glass for Your Oxfordshire Home?

Choosing the right window and door company is just as important as selecting the right products. Here’s why homeowners and businesses across Oxford choose our installation team for their projects:

In-House Manufacturing & Local Factory

Unlike brokers who simply buy in finished items, we craft high-quality sealed glazed units directly in our Banbury factory. This guarantees strict quality control, flexible customisation, and fast job turnarounds.

FENSA Registered Company

As a fully certified FENSA registered company, we guarantee complete building regulations compliance on every window replacement and new door installation, giving you absolute peace of mind.

Down-to-Earth, Honest Advice

We operate with a strict no-hard-sell philosophy. Our friendly team offers down-to-earth advice and transparent, fully itemised quotes so you can make informed decisions at your own pace.

Energy Efficiency Focus

We install energy-efficient windows and insulated doors designed to retain interior heat, reduce your carbon footprint, and deliver long-term savings on energy bills.

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FOR EVERY PROPERTY

Tailored Solutions for Heritage, Period, and Modern Properties

Oxfordshire features some of the most diverse architectural styles in the UK, ranging from historic stone cottages in conservation areas to sleek contemporary modern builds. Delivering a successful home improvement project requires local knowledge, experienced fitters, and flexible product options.

For period properties, listed buildings, and conservation areas, preserving architectural integrity is critical. We supply bespoke timber windows, slim double glazing units, and flush sash designs that satisfy strict local planning guidelines while boosting thermal insulation. If you live in a historic neighbourhood, our specialist glazing options allow you to upgrade draughty window units without altering the authentic character of your home.

For modern homes and glazed extensions, architectural aluminium systems provide ultra-slim sightlines that let natural light flood your room. Whether you are planning a new conservatory, replacing dated windows, or installing wide aluminium bi-fold doors Oxfordshire clients can count on our team to work closely with them to create a beautiful, secure, and energy-efficient living space.

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FAQs

Frequently Asked Questions About Windows & Doors in Oxfordshire

Energy-efficient windows feature double or triple glazing and low-E glass that reflects internal heat back into your living space. By trapping warm air inside and blocking cold exterior draughts, these high-performance windows reduce boiler reliance, significantly lower energy bills, and create a warmer, more comfortable home throughout winter.

Composite doors offer superior security and thermal performance by combining a solid timber core with ultra-durable outer layers. While uPVC doors provide excellent low-maintenance insulation, composite doors deliver enhanced structural strength, advanced multi-point locking systems, realistic timber aesthetics, and greater resistance to impact and harsh weather conditions.

Yes, when replacing windows Oxfordshire property owners in a conservation area or listed building often require specific planning permissions or consent. CN Glass supplies heritage-approved window styles, including flush sash frames, slimline double glazing, and traditional timber sash options designed to meet strict local conservation rules while drastically improving energy efficiency.

Regular maintenance is required for timber frames compared to uPVC or aluminium. They may need periodic painting, staining and treatment to protect against moisture and weathering, while uPVC and aluminium typically require less ongoing upkeep. Our team can help you choose the right frame material for your Oxfordshire property based on your preferred appearance, maintenance requirements and budget.

Choosing a FENSA-registered company guarantees that your window and door installation complies fully with UK building regulations. FENSA certification confirms proper energy performance and structural safety standards, protects your warranty, and provides an official certificate required when selling your home, ensuring complete peace of mind.

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Transform Your Home Today with CN Glass

Ready to upgrade your property with high-quality Oxfordshire windows and doors? Trust our family-run team to deliver expert craftsmanship, superior energy efficiency, and reliable local service from start to finish.

Whether you need door repairs, single window replacements, or a full glazed extension, send photos or contact our experienced team today for a free, no-obligation quote.

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