About Us


Big enough to cope, small enough to care

Willow Windows is dedicated to providing a high-quality, personalised service combined with friendly, informative advice. With over 25 years of experience within the double glazing sales and installation industry under our belts, we offer expert technical advice that you know you can rely on, whilst our 10 year, insurance-backed guarantee ensures that you’ll have complete peace of mind every time.

Based in Chelmsford, Essex; we provide a full range of beautiful Double Glazed Windows, uPVC Doors and Conservatories, all of which are expertly fitted by our in-house team of skilled installers; no mess, no fuss and all at low cost throughout all of Essex.


Certass, is a Competent Person Scheme covering the installation of replacement windows, doors and associated glazing products in domestic properties, and is licensed by the Department for Communities and local Government. Certass was established in 2006 and is a not for profit organisation dedicated to raising standards in the glazing industry. Membership of Certass enables contractors to self-certify installations as an alternative to submitting a building notice or using an approved inspector.

Willow Windows are fully Certass registered (No.002598), so you can rest assured that your installation will fully comply with all required quality and building regulations.

Willow Windows are Certass Registered

Ensuring that our customers get the best value for money possible is of utmost importance to us, which is why our Willow price promise will beat any identical, written quote... and that IS a promise!