Bespoke Windows Designed for Comfort, Style & Performance
High-quality made-to-measure uPVC windows engineered for energy efficiency, security and lasting beauty. Supplied and installed across Yorkshire and Lancashire.
Premium uPVC Windows for Every Property
Windows are one of the most important elements of any home. They define the character of your property's exterior, control how natural light enters your rooms, and play a critical role in thermal comfort, energy efficiency and security.
At 313 Glass, we supply and install a comprehensive range of uPVC window styles, all manufactured to measure and available with an extensive selection of glazing, colour and hardware options. Whether you're replacing tired old windows, upgrading a single room, or glazing an entire new build, our products are designed to deliver exceptional performance and timeless aesthetics.
We serve homeowners, architects and builders across all of Yorkshire and Lancashire, providing expert guidance from initial consultation through to professional installation.
Professional Installation
Our experienced fitters handle every installation with precision and care. From removing old frames to fitting, sealing and finishing your new windows, we manage the entire process with minimal disruption to your daily routine.
Every window is installed to the highest standards, ensuring a weathertight seal, smooth operation and a clean, professional finish that you'll enjoy for years to come.
Window Styles We Offer
We offer a complete range of uPVC window styles to suit every property and every preference.
Casement Windows
The most popular window style in the UK, casement windows are side-hung or top-hung, opening outward to provide excellent ventilation and unobstructed views. Available in uPVC with a choice of handles, hinges and restrictors.
Tilt & Turn Windows
Offering dual-action functionality, tilt-and-turn windows can tilt inward from the top for secure ventilation or swing fully open from the side for easy cleaning and maximum airflow. Ideal for upper floors and hard-to-reach locations.
Sash Windows
For period properties and heritage aesthetics, our sliding sash windows faithfully replicate the traditional appearance of timber sash windows while delivering the thermal performance and low maintenance of modern uPVC profiles. Features include run-through horns, deep bottom rails and woodgrain foils.
Fixed-Light Windows
Non-opening windows designed to maximise light and views. Fixed-light windows are perfect for feature glazing, stairwells, above doors and in combination with opening casements. Available in any size and shape.
Colour & Finish Options
Our uPVC windows are available in a wide range of colours and finishes to complement any property style. From classic white to contemporary anthracite grey, oak and rosewood woodgrain foils, and any RAL colour to order.
Dual-colour options let you choose different finishes for the interior and exterior — for example, a woodgrain finish inside to match your décor with a bold colour outside for kerb appeal.
Performance & Benefits
A-Rated Energy Efficiency
Our windows achieve A-rated energy performance as standard, using multi-chamber profiles, warm-edge spacer bars and low-emissivity glass to minimise heat loss and reduce your energy bills.
Enhanced Security
Multi-point espagnolette locking, internally glazed units and reinforced frames provide excellent security. Optional upgrades include laminated glass and key-lockable handles.
Stunning Aesthetics
Choose from smooth white, textured woodgrain foils, contemporary anthracite grey, or any RAL colour. Chamfered or sculptured profiles offer different aesthetic characters to suit modern and traditional properties alike.
Noise Reduction
Acoustic glazing options significantly reduce external noise, creating a quieter, more comfortable home environment. Ideal for properties near busy roads, flight paths or urban centres.
Clear Sightlines
Modern frame profiles are engineered to maximise the glass area, providing clearer views and more natural light. Slim frames create a contemporary look that enhances any room.
Bespoke Sizing
Every window is manufactured to your exact dimensions, ensuring a perfect fit regardless of your property's age, style or construction. Non-standard shapes including arched heads and circular windows are available.
Frame Options
We specialise in high-quality uPVC frames that deliver outstanding performance:
- uPVC frames — excellent thermal insulation, low maintenance, wide colour range
- Eurocell profile systems — industry-leading multi-chamber technology, BBA certified
- Chamfered or sculptured profiles to suit modern and traditional properties
Glazing Options
We offer a range of glazing specifications to match your performance requirements:
- Double glazing — A-rated energy performance with argon gas fill
- Triple glazing — maximum thermal and acoustic insulation
- Planibel A glass — specialist low-emissivity coating for enhanced efficiency
- Acoustic glazing — reduced noise transmission for quieter interiors
- Self-cleaning glass — reduced maintenance with hydrophilic coating
- Decorative and patterned glass — privacy without sacrificing light
Window FAQs
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