Synergy Windows
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Synergy Windows
Synergy Windows & Conservatories manufactures and installs double glazed uPVC windows, doors and conservatories. We have years of experience in the windows, doors and conservatory sector and have carried out hundreds of home improvement projects throughout the North East including the Durham and North Yorkshire region, installing windows, conservatories, conservatory warm roofs as well as garage conversions and extensions.

We deal with both domestic and commercial customers, offering quality and value for money. We are one of the few North East companies who have BFRC accreditation and approval to mark our double glazed windows 'A' rated. All our units are Argon gas filled as standard and we can also offer options such as triple glazing, warm edge spacer bar etc. to meet the specifications of the project.
Services
We install windows, doors, conservatories, orangeries, and house extensions across Darlington, Harrogate, Ripon, Northallerton, Stokesley, Yarm and surrounding areas. Choosing the right home improvement company for quality conservatories, orangeries, windows and doors is one of the most important decisions you'll make when thinking about improving your home.
We here at Synergy Windows offer flexible payment options for homeowners in Darlington, Harrogate, Ripon, Northallerton, Stokesley, Yarm, Richmond and the surrounding areas. If paying an upfront is an inconvenience, spreading out the payments can help make payments easier. Get in touch with us today about our payment options!
We install aluminium windows across Darlington, Harrogate, Ripon, Northallerton, Stokesley, Yarm, and surrounding areas. Aluminium windows are perfect for homeowners who want a window with high performance and low maintenance at an affordable cost. A naturally durable material, aluminium windows will never rot, rust, peel or flake, all whilst improving the warmth and energy efficiency of your home.
We install uPVC casement windows across Darlington, Harrogate, Ripon, Northallerton, Stokesley, Yarm, and surrounding areas. Casement windows represent great long lasting value for the home.

Virtually maintenance free, quiet and extremely secure (most casement windows come with Secured by Design certification), you can rest assured that you'll be bringing a fantastic new addition to your home that excels in keeping you warm, safe and comfortable throughout the year.
Synergy Windows supply and install stunning flush casement windows throughout Darlington, Harrogate, Ripon, Northallerton, Stokesley, Yarm and the surrounding areas. We here at Synergy Windows take pride in delivering some of the best double glazing solutions in Darlington, Harrogate, Ripon, Northallerton, Stokesley, Yarm and the nearby towns.
Reviews (6)
Gareth Robson
Gareth Robson
Sep 21, 2021
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Great service and communication from start to finish. Excellent work quality. All the tradespeople who worked on our supalite roof installation were brilliant and couldn't have been more helpful.
Clare Norris
Clare Norris
Apr 06, 2021
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Bad experience from start to finish. We have been left with doors which were the wrong size and are not air or water tight. We've had other contractors to fix some of the problems they caused but may need to have the doors refitted. Do not recommend at all. Go elsewhere.
Janet Cumiskey
Janet Cumiskey
Nov 24, 2020
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Windows are great very pleased.
Returning customer now had conservatory replaced by Synergy, absolutely delighted with the result. Excellent careful workmanship. I would add a photo if that was possible my conservatory is so nice
Thank you
Janet Cumiskey
Jim Chapman
Jim Chapman
Aug 20, 2020
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We had excellent service from Synergy from the initial consultation through to the installation. We didn't feel rushed or under pressure to make a decision, but were left with enough information to make up our own minds on what we wanted from the type of bi-fold doors through to the design of the detailed stuff like handles etc.
The installation was seamless too. The installers arrived on time, completed their work (which was exemplary), tidied up and left. Simple.
Claire Martin
Claire Martin
Dec 10, 2019
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Great service every time
Reasonable prices
Friendly service
Thank you
Hazel Smith
Hazel Smith
Nov 26, 2019
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Customer service is quick and easy. They install fantastic products. Would recommend to all!