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New Windows & Doors

We offer a wide range of highest quality windows and doors in PVC, timber, aluminium and composite for supply and installation by our highly experienced team.

With over 50 years of experience as window and door installers across Essex and London, we offer a huge range of products from leading manufacturers and at some of the most competitive prices in the South East. Our service is a complete supply and installation package, and we can also carry out a wide range of maintenance and repairs on damaged or broken windows and doors, including a 24 hour emergency call out service.

New Windows and Doors


Carrying out installations mainly for homeowners but also for commercial customers, our range includes;

  • Single and double glazing in Rehau and Veka profiles
  • 10 year guarantee on all installations
  • Vertical sliding sash window install and repair
  • Shopfronts and commercial glass partitions
  • 24 hour emergency glazing and boarding up
  • All products Energy A Rated
  • Comprehensive new window and door installations
  • Soft and hardwood windows and doors made to order
  • uPVC, aluminium and composite products in various colours

FENSAOur company is fully FENSA registered for installations of double glazing, doors and rooflights, ensuring high quality and safety standards with full regulations compliance for all our customers.


Find out more about our windows and doors installations and other special services including secondary glazing and traditional lead light fitting & repair on the pages below;

Window installers >>
We carry out complete professional installations of all kinds of domestic and commercial windows and doors to the highest standards, with full FENSA registration. Whether you require wooden, composite, PVC or aluminium, we will provide the ultimate solution.

Secondary glazing >>
We install secondary glazed windows in low profile aluminium which are highly effective for improving thermal insulation whilst reducing noise and condensation; you can also upgrade to acoustic glass for improved noise reduction in buildings close to busy roads or airports.

Traditional lead lights >>
We make and repair new, traditionally styled, lead lights to order.


Based out of our counter-service workshop in Chelmsford we travel throughout Essex and London carrying out high quality installations and repairs of PVC, aluminium and wooden doors and windows in locations including; Braintree, Colchester, Southend, Newbury Park, Grays, Brentwood, Halstead, Witham, Maldon, Benfleet, Canvey Island, Chigwell, Elm Park, Basildon, Romford, Dagenham, Barking, Poplar, Stratford, Canary Wharf, Walthamstow, Ilford, Redbridge and Harlow.

You can find further details of our services and glass and glazing products across this website, or contact us at Brentwood Glass today to arrange a no obligation survey and quotation.