Windows, Doors, Orangeries & Conservatories

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. It’s not just about the price, it’s about the quality of the products, professional installation and value for money. Synergy Windows & Conservatories understand that it means so much when you finally find a home improvement company who you feel you can trust to do the job properly – first time, every time.

What we do


Our product range allows you to bring a standard of quality to your home that meets modern demands, manufactured from premium grade materials and via the latest techniques.


We know the importance of value when it comes to your home improvements, as a costly venture can often put you off. All our products are competitively priced to make things easier for you.


The Synergy approach is founded in professionalism, reliability, promptness, and efficiency. This means that you’ll be able to enjoy the peace of mind that comes with better standards.

Our Products

Latest News

Aluminium Doors

Competitive Double Glazing Prices

We offer highly competitive prices across our double glazing range. Get in touch with us via our online quoting engine or online contact form to ...

Casement Windows

Double Glazing, Darlington

Enhance your home with a wide range of windows, doors, conservatories, and roofs across Darlington, Harrogate, Ripon, Northallerton, Stokesley, ...

Conservatory Roofs

New Website Build

Our new website is the ideal place for us to showcase our full range of windows, doors, conservatories, and roofs. Have a browse, or visit our ...


Happy Customers' Testimonials

Synergy understand the requirements for customer service excellence. Many thanks for everything.
Claire and Jerry Watson - County Durham
Overal, we are very pleased with the service provided by Synergy. The work has been finished to a very high standard.
Mr T Dargan - Sunderland
Good job, nice firm to deal and pleased with the finish.
Mr B Milton - Durham
This company really cares, nothing was too much trouble and everything was done exactly as promised.
Darren Stubbs - Darlington
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Synergy Windows & Conservatories Supply and Fit Double Glazed Windows, Conservatories & Doors in Darlington, Harrogate, Durham, North Yorkshire and the North East

Welcome to Synergy Windows & Conservatories, a North East based company with showrooms in Darlington and Harrogate. We have carried out hundreds of home improvement projects throughout Durham, North Yorkshire and the North East offering a range of double glazed uPVC windows, doors and conservatories which are all manufactured in our Darlington workshop to a high standard.

For help & advice call 01325 527 538 today or get a FREE quote!