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High-Performance uPVC Windows
Reduce Your Heating Bills With Energy-Efficient uPVC Windows
At Phair Windows, we manufacture and install bespoke uPVC windows for customers in Leicester and across Leicestershire. Made-to-measure to fit your home perfectly, out uPVC windows are available in a variety of opening styles and customisable options.
Upgrade your home with our A+ and A++ rated uPVC windows, engineered for superior thermal insulation and year-round energy savings. Our multi-chambered profile achieves U-values as low as 0.9 W/m²K for triple glazing, minimising heat loss and lowering your bills.
Each uPVC window is custom-made, blending cutting-edge technology with stunning designs that fit any Leicester property.
Why Choose Our uPVC Windows?
Exceptional Energy Efficiency
Multi-chambered frames and advanced double or triple glazing deliver industry-leading insulation. Enjoy a more comfortable home in any season, with less money spent on heating and cooling.
Maximum Security
Robust steel-reinforced profiles, shoot-bolt locks, and multi-point hardware ensure peace of mind. PAS24:2022-compliant for enhanced burglary resistance.
Maintenance-Free
uPVC never rots, rusts, peels, or requires painting. A simple wipe keeps it looking like new - no annual upkeep needed.
Noise & Weather Protection
High-performance seals and glazing block out draughts and external noise for a quieter, more relaxing home environment.
Sustainable & Stylish
Our windows are 100% recyclable and offered in a full range of contemporary colours and woodgrain finishes. Enjoy great looks and help the environment.
What Are uPVC Windows?
uPVC windows, made from rigid unplasticised polyvinyl chloride, are durable, energy-efficient window frames. They provide excellent insulation, reducing energy costs, require minimal maintenance, and offer enhanced security with various locking systems.
uPVC windows are a popular, affordable option and come in diverse styles and colours, complementing any property’s aesthetics. They’re also offer sound insulation and are eco-friendly, as they can be recycled.
High Performing uPVC Windows - Tailored for You
- Sculptured, chamfered, or flush-fit profiles for modern or heritage style
- A+ energy rated as standard, with advanced options up to A++
- Wide choice of colours (including White, Anthracite Grey, Golden Oak, Irish Oak, and more)
- Handles tested to 50,000 cycles and hardware with a 10-year guarantee
- Glazing options include laminated, Low-E, patterned, and internal blinds
The Installation Difference
Every installation is handled by skilled, accredited fitters for a flawless finish, rapid turnaround, and factory-precise fit. Our team brings decades of experience in double glazing for Leicester homes – backed by our 10-year insurance guarantee for total peace of mind.
Whether you’re looking for uPVC windows, timber alternative windows, tilt and turn windows, aluminium, bay and bow, sash, flush sash, casement, Georgian bar, or window repairs, we can help. Get a free, no-obligation quote today and discover how much you can save with new uPVC windows expertly tailored for your home!
Customise Your uPVC Windows
1
Select Your Window Style
Our easy to maintain uPVC use the latest double glazing technology as standard. Choose sash windows, casement windows, or bay windows.
2
Select Your Colours
We have a wide range of colours available from uPVC wood effect for a more traditional look, to mimic real wood grain, or a single colour frame.
3
Select Your Hardware
Choose from our selection of high-quality handles and variety of colours such as black, white, or polished chrome to finish your window off perfectly.
4
Select Your Glazing
Select from double or triple glazing, laminated glass, low E or ultra-low E glazing, patterned glass, blinds in glass, Georgian or astragal bars.
FAQs About uPVC Windows
How much do new uPVC windows cost in Leicester for 2026?
In 2026, the average cost for a standard uPVC casement window in Leicester typically ranges from £500 to £1,200 including installation. For a full 3-bedroom semi-detached home (8–10 windows), homeowners should budget between £4,000 and £9,500. At Phair Windows, we offer a “Lowest Price Guarantee” to ensure Leicester families get the best local value without compromising on A++ energy ratings.
Do I need planning permission for replacement windows in Leicester?
Most Leicester homeowners do not need planning permission for uPVC windows under “Permitted Development.” However, if your property is in one of Leicester’s Conservation Areas (such as Stoneygate, Knighton, or Belgrave) or is a Listed Building, you may need Article 4 consent. We recommend checking with the Leicester City Council planning department, or visiting our Aylestone showroom where our team can advise on heritage-style flush sash windows designed for local conservation standards.
Where can I see uPVC windows in person?
You can visit our local Leicester showroom at Unit 1, 49 Clifton Road, Aylestone, LE2 8AA. We are open Monday to Friday, and by appointment on weekends. Seeing our A-rated double and triple glazing in person allows you to test the security locks and view our full range of woodgrain and Anthracite Grey finishes before you buy.
How long do uPVC windows last?
Our high-quality and professionally installed uPVC windows from Phair Windows are guaranteed for 10 years but they can last more than 20 years. Signs that they may need replacing are draughts, visible damage, water leakage, or they are difficult to open, close and lock, or are sticking. You may also wish to replace your old windows to save money on your energy bills, improve security, prevent draughts, and stop any noise pollution.
When do uPVC windows need replacing?
uPVC windows need replacing approximately every 20 years, but some windows may last 10-35 years depending on the quality and upkeep. Windows installed around 2000 will likely need replacing now.
Home Improvement Experts
Your Journey With Phair Windows
Get in touch and we'll provide a FREE, no-obligation quote.
Final measurements are taken ensuring perfection every time.
All our windows and doors are expertly made in Leicester to order.
Our team install your windows or doors on a day that suits you.
Our friendly staff follow up with you and trade body registration is complete.
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Since 1998
10 Year Guarantee
Fully Accredited
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Professional, skilled, great communication from the on-site team - honestly, the best workmen I’ve ever had. They left the place tidy and neat. Thanks guys! They did a great job on a dreary, winter’s day with a smile. I love the new porch, which was a decent price. Honestly though, the sales guy Tom and the crew of Cal, Jake and Aaron were great. After having had a bad experience before with a different company, I’ll be using Phair Windows to replace my windows in the near future as well.
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Serving Leicester, Leicestershire & Surrounding Areas
Wherever you live in the East Midlands, double glazed windows from Phair Windows will help to transform your residential or commercial property. For years, our specialists have been serving locations such as Oadby, Aylestone, Wigston, Hinckley, Market Harborough, Nuneaton, Lutterworth, Loughborough, Coventry and Warwickshire.