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Bay Windows & Bow Windows Leicester
Premium Bay & Bow Windows Installed in Leicestershire
At Phair Windows, we manufacture and install high-performance bow and bay windows for homeowners in Leicester and across Leicestershire.
Crafted using premium multi-chambered uPVC profiles, our bay and bow windows are engineered for strength, security, and outstanding thermal efficiency. Energy Rated A (WER) as standard, with U-values as low as 0.9 W/m²K (triple glazed), they help reduce heat loss and keep your home comfortable all year round.
Each window is made to measure and manufactured in the UK using high-quality uPVC that will not rot, rust, peel, or flake. Combined with advanced double or triple glazing options, our bay and bow windows deliver long-term performance with minimal maintenance.
With a 10-year guarantee as standard and hardware tested to 50,000 cycles, you can feel confident you’re investing in durability, security, and style.
Why Choose Bay or Bow Windows?
Easy To Clean & Low Maintenance
Our uPVC frames are weather-resistant and highly durable. They will not warp, corrode, peel, or fade over time and require nothing more than an occasional clean with soap and water.
High Thermal Performance
Manufactured using a thermally efficient multi-chambered design and glazing options up to 40mm thick, our windows achieve Energy Rating A as standard, with U-values as low as 0.9 W/m²K for triple glazing.
A Range of Colours and Options
Choose from sculptured, chamfered, or flush profiles, multiple configurations, and a wide range of colours and glazing styles to create a window perfectly suited to your home.
What's The Difference Between Bay and Bow Windows?
Made up of three or more window panes, a bay window extends outwards in an arc shape to create a beautiful and impressive feature window with panoramic views.
A bow window is usually comprised of 4 or 5 windowpanes and are notable for their arched design, effortlessly complementing older properties.

Benefits & Features of Bay & Bow Windows
- Choice of uPVC or aluminium
- Made to measure
- Double & triple glazing options
- Adds charming character
- Energy Rated A as standard
- U-values as low as 0.9 W/m²K (triple glazed)
- Multi-point locking systems
- Available in many colours
- 10-year guarantee
- Long-lasting and low maintenance
- Reduces noise pollution and draughts
- Internally glazed opening sashes
Highly Secure & Energy Efficient
Security and performance are built into every window we install.
Our bay and bow windows are designed to meet PAS24:2022 standards and are fitted with advanced multi-point locking systems for enhanced protection. Internally glazed opening sashes add an extra layer of security, while reinforced profiles provide structural strength.
Thermally, the multi-chambered frame design traps warm air within the profile, improving insulation and helping to lower energy bills. Combined with high-performance glazing, your home stays warmer in winter and cooler in summer.


Expert Bay Window Installations in Leicestershire
The quality of installation is just as important as the quality of the window itself. Our experienced team ensures precise measurements, clean fitting, and minimal disruption to your home.
All of our windows and doors are manufactured to your bespoke requirements and installed to the highest industry standards.
Whether you’re looking for bay or bow windows, tilt and turn, sliding sash, timber-effect finishes, casement windows, flush sash designs, Georgian bar options, our team will deliver a flawless result.
Customise Your Windows
1
Select Your Material
Choose from premium sleek aluminium or multi-chambered uPVC, engineered for durability, thermal efficiency, and long-term performance.
2
Select Your Profile & Colour
Choose from sculptured, chamfered, or flush profiles. Available in a range of contemporary colours and traditional woodgrain finishes.
3
Select Your Hardware
Choose from a range of high-quality stylish handles tested to 50,000 cycles, and colours to finish your window off perfectly and complement your property.
4
Select Your Glazing
Choose from double or triple glazing, laminated glass, Low-E or Ultra-Low E glazing, patterned designs, blinds in glass, or Georgian/Astragal bars.
Frequently Asked Questions
What's the difference between a bay and bow window?
A bay window typically features three window sections and projects outward from the property, creating additional interior space and panoramic views.
A bow window is formed from four or five window sections arranged in a smooth curve, creating a softer, more rounded external appearance.
Both styles enhance natural light, increase visual space, and add architectural character to your home.
How much is a bay window?
The average cost of a bay window installation depends on a number of factors such as the material, style, structure, and number of windows. Bay windows add value to any home by increasing the market value, and provide a beautiful aesthetic feature so it’s certainly worth the extra cost. Find out how you can transform your home today with our double glazed bay windows in Leicester. Get a free quote through our online form or speak to our team today!
How long does it usually take to install bay windows?
With professional installation, a bay window replacement usually takes around 1–3 days, depending on window type, brickwork, and how many side panels are involved. This timeframe includes safely removing the existing bay window or standard windows, fitting the new frame, sealing for insulation and ventilation, and making good inside for internal window seating or future window treatment.
What are the main benefits of installing bay windows in a home?
Bay windows are a great way for homeowners to boost natural light, ventilation, and airflow while creating extra space and a beautiful charm compared with standard windows. The additional space is the perfect place for internal window seating, curated window treatment, or storage, and this desirable feature often increases the value of your home and overall property value.
Are uPVC or aluminium bay windows better?
Both uPVC and aluminium bay windows can be high quality products, but uPVC usually offers excellent energy efficiency and lower impact on energy bills, making it popular in modern homes. Aluminium suits curved bow window designs and slim sightlines, giving a unique look and wide range of colours but at a higher cost than a typical replacement window. Timber bay windows add traditional charm but need more maintenance.
Premium Bow & Bay Windows Leicester
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.
Finance Available
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.
Beth Hendry
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Customer Reviews
We have achieved and built our reputation from our independent customer reviews.
EXCELLENT Based on 180 reviews Posted on Mike PookMarch 16, 2026. We needed all of the windows at our house replaced. As we were new to the area we were shooting in the dark a bit regarding the selection of a supplier but were attracted to Phair Windows due the the overwhelmingly positive reviews online. They quoted very quickly and we were pleasantly surprised at the price they offered. The work was completed to an extremely high standard and their team of installers were very helpful and took great care with their work. We’re delighted with the outcome and I have no hesitation at all in recommending them wholeheartedlyPosted on Natalia SmolikMarch 11, 2026. Phair windows ltd Tahank you so much . From the day one they been absolutely brilliant. Tom came and gave us a honest price without pushing us to buy windows form Phair windows, that was very nice as I had quotes from different companies before and they put a lot of pressure on me to buy windows from them. Then Boris send Us project proposal very quickly and we agreed fitting dates (3 days for 9 windows) . We had Lincoln & Michael fitting all windows and they been absolutely amazing , they finish everything in just 2 days ! What a amazing team 😊Posted on Ross FarrellFebruary 27, 2026. Excellent service. Polite, clean, tidy, and a very fair price. I’d recommend to a friend.Posted on George BirrellFebruary 19, 2026. Excellent work ethic, friendly and professional leadership and the work was carried out with no issues and was as expected and guaranteedPosted on Jenny RyanFebruary 6, 2026. Our fitters Michael and Lincoln were just brilliant. They worked non-stop from arrival to finish and checked with us at various stages to ensure that we were fully aware of any reasons for differences in window finishes/trims etc and fully satisfied once the work was completed. They were very patient and took time to answer all our questions fully. They tidied everything away, even sweeping the patio to ensure no bits were left behind. I hadn't heard of the company before and took a chance on them after reading their reviews. I would have no hesitation in using them again and would definitely recommend them to others.Posted on ian LeithFebruary 3, 2026. Contacted Phair Windows at the turn of the year as our " composite front door " was falling apart & couldnt open or shut very easily . Tom came out the following day , we chose the door we wanted & the fitter measured up a couple of days later . My door was fitted yesterday , the door is of a sturdier build and took both fitters to carry it , the old one was carried away by one fitter .Both of the fitters very professional , courteous & left no mess behind .... We are really pleased with our new front door . I have communicated on a regular basis with Borris and my queries have been addressed in a timely manner . I would have no hesitation in recommending this family run business to my friends & family for any future doors or windows .Posted on Suhale SweetmanJanuary 29, 2026. Brilliant service, no issues with the work, would absolutely recommendPosted on Biz BainsJanuary 27, 2026. Just wanted to say both Lincoln and Michael did an amazing job They cleaned up after themselves and were extremely polite - a credit to the business. I would highly recommended the company and after shopping around I’m extremely pleased with the work they did to all the windows in our house in Leicester Forest eastPosted on Stephen HollowayJanuary 6, 2026. We had two new doors fitted yesterday by Lincoln and Mick, lovely lads, very professional, answered all my questions, left no mess, I will use this company again.Posted on Kate BristowDecember 20, 2025. Excellent prices, excellent window fitters and nothing was too much trouble. Left all clean and tidy. Thoroughly recommend
Proudly Serving Leicester and the Surrounding Areas
Wherever you live in the East Midlands, bay and bow 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, Whetstone, Wigston, Hinckley, Ashby-de-la-Zouch, Syston, Thurmaston, Coalville, Fleckney, Melton Mowbray, Kettering, Grantham, Market Harborough, Tamworth, Market Bosworth, Earl Shilton, Nuneaton, Lutterworth, Loughborough, and Rugby.