telephone: 0208 428 5433

Contact Williams Windows
Double Glazing Windows Double Glazing Survey Conservatory Professional Glaziers No sub-contractors

Double glazing windows throughout Harrow, Pinner & Northwood - Williams Windows

Williams Windows are a family business, with over 25 years experience in the supply and fit of conservatories and double glazing windows and doors throughout Harrow, Pinner, Northwood and beyond.

We know the appearance of your home is important to you, which makes it important to us. Therefore we only use quality double glazing products and experienced fitters to complete the job. All our windows pass council guidelines so you can be sure of a job well done.

Our main focus is keeping you happy and supplying you with a friendly, personal service, without the pushy salesmen. We will give you all the information you need, including a quote then leave - no unwanted visits, no unwanted calls and no bother.

Our manager can visit you for free, no obligation quote where a full assessment of intended work will be undertaken. For more information on any of our services, please get in touch.

Need a Conservatory?

Take a look at our range of conservatories for a selection of styles and sizes to suit all tastes and building types. Adding a conservatory to your home is a great way of gaining that extra space, whilst allowing light to flood into the rest of your home. A conservatory can be a cheaper option to an extension and become a great space for children to play, holding dinner parties or simply a place for you to relax.

For more information about adding a new conservatory, double glazing windows or doors to your home in the Harrow, Pinner or Northwood area, give us a call on 0208 428 5433 or contact us online and see how we can help bring your home alive.



  • ‘The service provided was of a high standard by a professional team who clearly knew what they were doing. We couldn’t be happier with our brand new conservatory. Thank you to all involved…’

  • ‘My new front door has added light into the hallway and brightened up the exterior of my home. Everyone comments on it when they first see it. I would not hesitate to recommend Williams Windows to anyone…’

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Specialist Windows

Specialist Window

We can help you meet Council Guidlines

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Efficiency Rating

All Products are A Rated Efficiency

British Kitemark
Trust Mark