Replacement Windows, Doors & Double Glazing in Leicester
Trusted Across Leicestershire Since 1998
Rated 4.9★ on Google and Trustpilot from 200+ reviews
Leicester’s Window & Door Specialists
From energy-efficient double glazing to secure composite doors, our experienced in-house team handles everything from survey to installation and aftercare, delivering security, energy efficiency and lasting performance at competitive prices.
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Double Glazing in Leicester
Explore Our Range of Windows, Doors, Conservatories & More
We supply high-quality windows and doors at affordable, transparent rates, with flexible finance options and no-pressure quotes. Built on a foundation of customer satisfaction, we have always put homeowners first. Every installation is completed by our experienced in-house team with meticulous attention to detail from survey to aftercare.
Rated 4.9★ on Google and recognised with multiple industry awards, Phair Windows has built a reputation as one of Leicester’s most trusted window replacement companies. Browse our product range below and find the perfect fit for your home.

A Local Family-Run Business
Home Improvements in Leicester Since 1998
- 4.9-Star Google Rating
- 0% Finance Available
- Family-Run Since 1998
- Installed By Our Team
- Manufactured In-House
- Assure-Certified Installer
- 10-Year Insurance Guarantee
Premium uPVC Windows & Doors, Made in Leicester
View Our Windows & Doors in Our Leicester Showroom
Visit our new showroom at 49 Clifton Road in Aylestone, Leicester (LE2 8AA), where our friendly team of home improvement experts will be happy to help. You can explore our range of double glazed windows and secure doors, and see how the right products can improve your home.
Book an appointment with our experienced team today, and let us help you choose the perfect products for your home, with multi-point security locks, energy-efficient glazing and a robust warranty.
Enhancing Homes Since 1998
Secure, Energy-Efficient Windows & Doors for Leicester Homes
Installing A-rated double glazing can help reduce heating bills while improving comfort and security. We supply and install a wide range of windows and doors in a choice of colours, styles and finishes.
Our uPVC windows and doors are made to measure using the ADVANCE 70 system. Designed to meet UK building regulations, they offer multi-chambered insulation, strong weather performance and PAS 24 security options. For composite doors, we also offer Solidor and Solid Core designs, combining solid, secure construction with a premium choice of colours and glazing.
Whether you’re looking for new casement windows, bay windows, sash windows, aluminium windows, bifold doors, patio doors, or a conservatory roof replacement, we’re ready to help.
0116 456 0242
Market Leading Window Replacement Specialists
Your Hassle-Free Journey With Phair Windows
Book a home visit or visit our showroom and speak to our friendly team about your ideas.
Once you’re happy to proceed, we’ll carry out a full site survey before your products are made to order.
We install on a day that suits you, removing and responsibly disposing of waste under our licence.
Once complete, we provide your relevant certification and 10-year guarantee documentation.
Customer Reviews
Here at Phair Windows, our fantastic customer reviews proudly make us one of Leicester’s favourite window and door companies, as rated on Google, Facebook, Bark, Yell and Trustpilot.
EXCELLENT
Based on 192 reviews
Posted on Google![]()
Szabolcs MatheOctober 6, 2026.
Excellent job guys, love the new windows. Pleasure to deal with Phair Windows, we'll definitely use you again for the front ones as well!Posted on Google![]()
The_Goated _GodSeptember 23, 2026.
Ethan and Jason was fab thank you so muchPosted on Google![]()
HaSeptember 8, 2026.
Great work from Phair Windows, I had Jason and Ethan come out to carry out some work on our window. The lads were respectful, efficient and professional. We are very happy with the conduct and service of the company. I highly recommend.Posted on Google![]()
Mac BegumSeptember 4, 2026.
Had my windows done with Phair windows 3 years ago with a very competitive price. I was so impressed that 3 years later when my window was jammed they came to repair it. Ethan was excellent, very fast and repaired the window immediately. Great service from the start and still ongoing! Thank youPosted on Google![]()
Robert PayneAugust 27, 2026.
We used Phair Windows for a new tiled conservatory roof and inner plastering. The company were best on price and quality of work was highly done. It started with a visit from Tom the company salesman who understood what we wanted and assured us of what can be done. The office team of Jake & Boris were friendly and importantly communicated well with us throughout the job. The building team of Dan and Carl got the job done professionally and came up with good solutions to problems that arose. We had a few blown windows in another area of the house which they are replacing for us free of charge. Nice touch. Would recommend to other home owners to use this company 👍Posted on Google![]()
Faduma IsseAugust 21, 2026.
I had French doors installed in August 2025 and returned to have five windows replaced in August 2026. I truly don't know how to express my appreciation. Phair Windows has an outstanding salesperson named Tom. The staff, including Boris, Leon and Lincoln, are down-to-earth and hardworking. This is an all-around brilliant local business that you should definitely support. Thank you so much! FadumaPosted on Google![]()
Eve BrownAugust 17, 2026.
Absolutely fantastic service. The team were knowledgeable, respectful, and took real pride in their work. Would highly recommendPosted on Google![]()
melissa mcclellandAugust 17, 2026.
I would 100% recommend this company, they offer great service, very polite and professional. Would definitely use them again if I ever needPosted on Google![]()
Beverley RemingtonAugust 5, 2026.
I have recently had a new composite door installed by Phair Windows, Leicester and am very happy with it. My installer, Lee, was efficient and left no mess. He went above and beyond as he helped me with a couple of other doors that weren't closing correctly. I really appreciated that. I also needed more of the special keys and Phair reimbursed me for several of these and came back later to touch up a couple of marks and fit another door accessory. Everyone was extremely helpful and kept me informed every step of the way. Overall, I couldn't fault Phair Windows. Their price was literally half of what I had been quoted by one of the 'major' players in the business who favoured 'hard sell' tactics, and they guarantee every part of the door for 10 years, which is awesome. I would wholeheartedly recommend Phair Windows to anyone who appreciates great service with excellent aftercare.

Proudly Serving Leicester & Leicestershire
For over 25 years, Phair Windows has been trusted for premium double glazing, replacement windows, secure doors, beautiful conservatories, and home improvements across Leicester, Blaby, Braunstone, Wigston, Oadby, Aylestone, Market Harborough, and the wider Leicestershire area.
Trusted, Certified & Award-Winning Installers
Why Choose Phair Windows?
Choosing a window company is a big decision, and one that should come with complete confidence. At Phair Windows, our products are manufactured on-site and installed by our experienced team. This gives us greater control over quality, finish and service from start to finish.
We believe in clear pricing, honest advice, expert installation and dependable aftercare – not sales pressure. Every product we manufacture and install is backed by a 10-year guarantee, giving homeowners across Leicestershire added peace of mind.
Certified, Insured & Licensed
Assure-certified installer with £5m public liability insurance and a waste carrier licence.
10-Year Guarantee
Every product we supply and install is covered by our 10-year insurance-backed guarantee.
Manufactured In-House
Locally made-to-order windows and doors using the premium ADVANCE 70 System.
Case Studies
Our Recent Projects Across Leicestershire
Take a look at some of our latest home improvement projects across Leicestershire. From new porches to conservatory and roof replacements, each case study showcases the quality of our trusted window fitters, their attention to detail and commitment to customer satisfaction.



