Scores based on 55 reviews

Reliability & timekeeping

Invoice history based on 47 reviews.

Invoice History
Charged as per quote / estimate97.87%
Above quote / estimate: kept informed2.13%
Appointments reported as missed (6 months) 0
Average score 9.68
55 reviews
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Who are we?

An experienced and fully ensured family business based in Middlesex. 

We offer a wide range of top quality products to improve your home, all available in a range of materials and colours.

What do we offer?

The supply and installation of hardwood, aluminium and uPVC windows, doors, conservatories, home extensions and general building work.

We are particularly proud of our conservatories and our stunning range of bi-folding sliding doors.

Our commercial contracts included the installation of mirrors and glass walls throughout several branches of Marks and Spencer, including the Marble arch and Kensington stores.

What makes us different?

We are 100% committed to customer satisfaction for every for every installation and as a result 90% of our work is through customer recommendations. Our professional reputation drives our customer service commitment.
Consider Harrow Windows for your next home improvement project:

  • Our unique 3 - point customer pledge
  • Fully compliant with government regulations
  • All work is covered by insurance backed warranties
  • Fully CERTASS registered
  • Conservation Area specialists
  • No salesman and no hard pressure selling
  • One to one customer service every time you call us.
As home-owners ourselves we recognise that having building and installation work carried out in your property that it can be a demanding and stressful experience. At Harrow Windows we work with each customer to make sure that it is as smooth and pain free as possible.

Based in

Pinner, Greater London, HA5 4PR

Works in

Pinner, Edgware, Harrow, Watford, St Albans, Uxbridge, Middlesex, Hertfordshire, Bucks, Berkshire.