Family run business

Great customer service

UK manufactured

High quality bespoke windows

Windows, Doors and Conservatories in Chelmsford, Essex

Tri-tec Windows is a well-established, family-run company, specialising in high-quality workmanship, first-class customer service and competitively priced UPVC windows, doors and conservatories for homeowners across Essex.

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Tri-Tec: FENSA Approved Installers

At Tri-tec Windows, we believe passionately in the aesthetic and practical qualities of PVC-u glazing. Unlike timber windows, which require regular patching and filling and run the risk of rot, PVC-u glazing is low-maintenance from the day of installation and built to withstand the most severe weather conditions.

Whether you are a contractor or a homeowner, we’d love to hear from you. We supply and install PVC-u windows, doors, conservatories and lantern roofs to enhance the appearance and security of properties throughout the Essex area, underpinned by a 10-year insurance backed guarantee.


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What Our Trade Customers Say

We pride ourselves on first-class customer service, giving fair and transparent advice for all trade projects based on the needs of your clients.


Excellent, friendly service, windows are top notch quality i use them for all my UPVC window and door needs Highly recomended 100%.

Ian Perry

Great service all done on time! competitively priced left clean and tidy. would recomend.

Andy Georgiou

The customer service we have received has been second to none both before the installation and during. We cannot say enough good things about their installers. Fabulous attention to detail and a very nice young man.

Laura Rodway Haines

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