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Conservatory Cost Calculator
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Calculating Your New Conservatory Cost
Looking for more information about installing a new conservatory? Trying to find out how much it costs to build a conservatory? Or the cost to replace your conservatory roof? Complete our conservatory cost calculator below for a quick quote.
Conservatories offer a wonderful means of expanding your home and providing extra living space. They’re perfect for all seasons, offering a comfortable extension that can be enjoyed both during the warmer and colder months. However glazed extensions can be expensive, and are certainly a large investment.
Established in 1998, we’re an award-winning double glazing installer based in Leicestershire. Throughout our years in the trade, we’ve installed and replaced conservatories, orangeries, conservatory roofs, and porches of all shapes and sizes to a variety of homes across the Midlands.
If you’d like an estimate of how much it would cost to install a conservatory, simply complete the following form to receive a quote from Phair Windows. We’ll be in touch with a quote as soon as possible.
Our Conservatory Cost Calculator
Complete the form below and we’ll be in touch with a quote. We cover Leicestershire and the East Midlands.
Benefits of a Solid Roof Conservatory
An Experienced Team To Help
With over 25 years of experience, our experts are renowned for their attention to detail, professionalism, and high-quality installations.
High Thermal Performance
All of our conservatories and glazed extensions are renowned for their high thermal performance and a more comfortable living space.
10 Year Guarantee & Quick Installation
Enjoy peace of mind with a 10-year guarantee for long-lasting quality. Quick installation ensures minimal disruption to your home.
FAQs about Cost of Conservatories & Conservatory Roof Caculator
The cost of a fully fitted conservatory in the UK can range from £10,000 to £30,000 or more, depending on the size, materials, and features chosen.
The cost of a solid roof for a conservatory in the UK typically ranges from £4,000 to £10,000, depending on the size of the conservatory and the materials used for the roof.
In general, a conservatory is often cheaper than a traditional extension because it usually requires less construction work and materials. However, the actual cost difference may vary depending on individual circumstances.
In the UK, you may not always need planning permission for a conservatory, as some smaller ones fall under permitted development rights. However, certain criteria and restrictions apply, so it’s best to check with your local planning authority to ensure compliance.
Roofing & 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 conservatories are expertly made in Leicester to order.
Our team install your conservatory at a date 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
Free Online Quote
Absolutely over the moon with our new windows, and the work and care that was put into installing them. This company is fantastic and worth 5 stars and more.
Beth Hendry
We’re a Fully Accredited and Locally Reputable Company
At Phair Windows, you’ve got complete peace of mind as we are fully accredited by all the relevant regulatory bodies. We are also proud to offer a 10 year insurance backed guarantee on every installation as standard.
Over our 25 years, we’ve built up quite the local reputation too. Take a look at some of our recent customer reviews from homeowners across the East Midlands.


Customer Reviews
We have achieved and built our reputation from our independent customer reviews.
EXCELLENT Based on 143 reviews Paul KnightMay 22, 2025. Erik and Lincoln Done a great job on replacing my French doors very professional and done a proper job Sim JMay 20, 2025. Recently had all my windows and doors done by Phair windows. 5* all round from start to finish, very happy with the results and would highly recommend graham facerMay 19, 2025. Mr Graham facer Gwendoline Drive Countesthorpe had phair windows to replace three double glazed unit, Work was done very professionally and in good time. Team was polite and friendly. Good price. Would recommend. Thanks stacie goodreidMay 7, 2025. I used Phair windows to replace multiple windows and doors in a property I’ve just purchased. They were recommended to me by a friend and I’m so glad I chose them. The service was great, good quality products at a ‘Phair’ price. The lads who came to install were polite, tidy and efficient. I’d recommend anyone local to use their services. tina stringerMay 6, 2025. I had originally left a one star review due to lack of response. Since then the company owner has been in touch to explain slow response. He also came out to have a look at our window handles and also found another couple of window problems. Overall they were very thorough, and came for a second visit to replace the handles. They were very professional and efficient and I am happy to recommend the company to anyone who needs work done on glazing/window replacements. Chloe PughApril 22, 2025. Very happy, great service. Would recommend to anyone that needs new windows Adam BirrellApril 16, 2025. Had all my windows and exterior doors replaced with these guys. It was an easy and smooth process. The quality was spot on with clean and efficient fitters. Highly recommend!!! Paul R CarrApril 10, 2025. These guys are fantastic! They did a big job in just a couple of days and the quality the work was incredible! They were so respectful and tidy, with very little disruption- and we kind enough to do a few little extras here and there on our sills etc… They could not be faulted! 100% recommended and will definitely use again! Shoaib AhmedApril 2, 2025. Just had a door and new windows fitted by Phair Windows. Couldn't recommend them enough. Big thanks to Eric, Mike, and Lincoln who did an amazing job. Highly professional and friendly. Also, big thanks to Jake who came round to do a quality check to make sure I was happy with the service.
Serving Leicestershire & The East Midlands, UK
Wherever you live in the East Midlands, conservatories and home improvements 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, Hinkley, Market Harborough, Nuneaton, Lutterworth, Loughborough, Northampton, Coventry and Warwickshire.