Unit 1, 49 Clifton Road

Aylestone, Leicester, LE2 8AA

0116 271 2401

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Mon - Fri: 08:30 - 17:30

Sat: 10:30 - 15:00

Your Trusted Windows & Doors Specialists

5-Star Rated Double Glazing Company in Leicester | uPVC, Sash Windows & Door Installers

Hassle-free installation of high-quality double glazed windows, doors, and conservatories from Phair Windows & Glass. An experienced home improvement company based in the heart of Leicester. 

Affordable Replacement Glazed Units

The Best Double Glazing Window & Door Fitters in Leicestershire

Phair Windows & Glass is a family-run double glazing company that installs uPVC and sash windows, doors, and conservatories to customers across Leicester, Leicestershire and the East Midlands.

We make improving your home simple. From the initial design visit to installation, we take care of it all, from start to finish. Warmth, security, and comfort are guaranteed at low, competitive prices. Whether you’re looking for new, or replacement windows, doors, or conservatories our expert team will help you every step of the way. Get in touch with the professionals and find out how we can help you today!

Professional, Friendly Service.

0116 271 2401

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House of New Windows - uPVC Dark Anthracite Grey Charcoal Double Glazing Glass Window Installed by Phair Windows & Glass, Leicester, Leicestershire, Midlands
uPVC Double Glazing White Porch with Frosted Glass Front Door - Installed by Phair Windows & Glass, Leicester, Leicestershire
Phair Windows & Glass Double Glazing Installer in Leicester - White uPVC Replacement Window Company
House of New Windows - uPVC Dark Anthracite Grey Charcoal Double Glazing Glass Window Installed by Phair Windows & Glass, Leicester, Leicestershire, Midlands

Residential Window Services You Can Depend On

30 Years of Double Glazing Installation in Leicester

Established, reputable family-run business. Enhance your property with our windows, doors, and conservatories, increasing your property value with our professional installation teams. See why we’re one of the most trusted window professionals in Leicester.

We’re a double glazing company with a passionate team who are renowned for our attention to detail, and professional and trustworthy nature. You can feel confident knowing that your home will remain in safe hands throughout your journey with Phair Windows & Glass.

Replacement Double Glazing in Leicester

Browse Our Glazed Products in Leicestershire


Modern casement, Victorian sliding sash windows, Georgian or bay windows, we offer it all. Available in uPVC, or aluminium, all with a range of colours and options.


Whether you choose uPVC, composite, aluminium, French doors, or sliding patio doors, high security and energy retention remains the main priority for us.


Take your home to a new level with a bespoke glass conservatory to suit your lifestyle. From the initial design visit to installation, we take care of it all.

A Range of uPVC & Aluminium Windows & Doors

At Phair Windows & Glass, we offer an excellent selection of specialist uPVC and aluminium windows and doors, high-performance conservatories, double glazing, and much more. Our double glazing products in Leicester utilise the best systems on the market from leading manufacturers to ensure security levels and product durability are excessively high. If you’re looking to repair rather than replace an existing product, we can help here too.

uPVC Double Glazing White Porch with Frosted Glass Front Door - Installed by Phair Windows & Glass, Leicester, Leicestershire

5 Steps To Your New Double Glazed 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 Britain to order.

Our team install your windows or doors on a day that suits you.

We follow up with you and FENSA registration is completed.

The Best Double Glazing in Leicester


Replace Your Double Glazing Units & Improve Energy Efficiency

Professional Window Installers & Repairs

High-Quality Material

Always use the best highest quality materials.


FENSA registered, CPA compliant and insurance backed guarantee.

Over 30 Years' Experience

Highly skilled technicians and extensive knowledge of the industry.

Highly Recommended

Hundreds of 5 star reviews and an impressive local reputation.

Quick Response

Efficient, professional service from start to finish.

10 Year Guarantee

All our windows and doors come with a 10 year guarantee.

Top Reviewed Double Glazing Professionals Near You

Our Double Glazing in Leicester Reviews

Our reputation is built on first-class customer service, valued repeat business, and strong recommendations from our customer base across Leicestershire. Hear what they have to say about working with us and find out why we’re the double glazing company in Leicester you’ve been looking for.

Based on 77 reviews.
Beth Hendry
Beth Hendry
July 22, 2022.
Fantastic company. We needed all our windows in our house replacing and after been let down multiple times by another company, we called up Phair Windows. We were given a quick, no nonsense quote on the day. The communication was fantastic all the way throughout the whole process. On the day of the fitting, we had the loveliest bunch of guys turn up and got the job done with such efficiency and care. Once they were fitted, they ran through all the work they had done and gave a complete run down of everything. Absolutely over the moon with our new windows, and the work and care that was put into installing them. Honestly, thank you all so much. This company is fantastic and worth 5 stars and more. Couldn't recommend them enough. Big thank you to all the guys who installed them on the day (21/07/22).
Gareth Holyoak
Gareth Holyoak
May 28, 2022.
We had a front door that was sticking badly. We called them, came out at the agreed time, sprayed the silicone, all sorted. Efficient friendly service, would recommend.
Louise Barwell
Louise Barwell
May 9, 2022.
Love love this company. The guy who turned up to quote gave me a no nonsense competitive quote. He was friendly and helpful and put covers on his shoes when entering. Fast forward 1 week. He was prompt, quick and efficient on the installation. Will be rebooking him soon to do another window and will happily recommend.
Reema Devji
Reema Devji
April 27, 2022.
We called Phair windows to fix a small window opening that was stuck. After trying to figure it out myself, I was unsuccessful and gave up. A gentleman called Jake came, he looked at the problem and fixed it within minutes. He was very friendly, polite and professional. I'd definitely recommend them for any of your window needs.
Christopher Griffin
Christopher Griffin
April 26, 2022.
We needed repairs on two of our window handles and mechanisms. They came over on time and charged a very fair price. The quality of their work was great and we’d most definitely recommend their service. Thank you!
Kathy G
Kathy G
April 12, 2022.
Rob, Jason and the Team are great, as they reliable, considerate and do what they say or asked, with pride and friendliness- highly recommended - Thank you
peter arscott
peter arscott
April 6, 2022.
Local firm provided excellent service and competitively priced
Elaine Pantling
Elaine Pantling
March 25, 2022.
Excellent friendly service... it is so good to be able to see out of our kitchen windows! I would not hesitate to recommend Phair Windows and Glass... it is good to use and support a local company. Thank you 😊
February 24, 2022.
The good folk at Phair have a genuinely pleasant and honest attitude to customer service and go out of their way to ensure the work is completed to a level that'll leave you smiling. My number one to go for windows related solutions.
Steven Moore
Steven Moore
February 18, 2022.
Fast and friendly service, will use again and would recommend to others.
Dark Grey Composite Door - Double Glazing Doors Installers Leicester

Frequently Asked Sash & uPVC Window Questions

There are many factors that come into play when buying new windows. The average cost for new windows can be anything from £500 to £3,200 depending on the different variables such as window type, frame style, double glazing, colour (we offer a range such as wood-grain, anthracite grey or white), number of windows and the size. Contact Phair Windows & Glass for a free no-hassle quote today.

Our high-quality and professionally installed uPVC windows from Phair Windows & Glass 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.

If your windows were installed more than 20 years ago then it’s best to have all of your windows replaced. After 20 years is generally when you start to see problems and they will not be as thermal efficient as they used to be. Replacing your windows is a huge investment so therefore, replacing the worst windows could be an option. However, replacing all of your windows at once will save you money in the long term. Our expert installation team can complete the full job in a couple of days.

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. 

Do You Have A Specific Home Improvement Project?

If you've got a specific idea on how you'd like to improve your home, get in touch with us and one of our double glazing experts in Leicester will be happy to discuss your requirements.

Orangery with glazed windows and french patio doors - Phair Windows and Doors, Leicestershire

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