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Bi-fold Doors in Harrow

Bi-fold doors offer the ideal balance of light, space, security and accessibility in your home. With full length glass panels, you can utilise the natural light in your home and allow it to flood the room. Due the the folding design of these doors, you can save space as they are compact when folded, and allow you to open the full space of a wall rather than half, as you would with sliding patio doors.

With a wide variety of colours in a range of materials, you can create a design that is perfectly bespoke to your home style with William's Windows. Whether you have a large room or small, we can cater to your specific design needs with anything from 2-7 glass panels. The smaller details such as handles are also tailored to your style, so you can create the ideal aesthetic to fit your home in Harrow.

Not only do bi-fold doors let natural light in, they also allow you to have a panoramic, uninterrupted view of your garden. Enjoy the view from inside, or slide the doors open to allow your garden to become an extension of the room itself. Bi-fold doors are perfect for homeowners with little ones; you can watch the kids outside confidently while preparing dinner in the kitchen or going through your paperwork in the living area.

With sturdy and durable materials, you can rest assured that your home is secure, not only from intruders, but also from the elements. Having solid, robust locks and double glazing, you can shut the cold outside during the winter, or keep your house cool through the sticky summer heat in Harrow.

Our bi-fold doors are made to the highest standards of craftsmanship, ensuring they are durable yet functional and practical to move. With powder-coated stainless steel rollers, the elements won’t provoke rusting, allowing smooth, lightweight operation regardless of your design.


William's Windows aim to beat any bi-fold doors written quote by 5-10% and can provide you with a fully insured, 10 year guarantee! With a professional team installing bi-fold doors into your property, we aim to complete the job in just one day, giving you as much time as possible to enjoy your new view! We are flexible to suit your schedule and provide support for any questions you may have.

Create the perfect doors for your property in Harrow with William's Windows. For a free consultation and quote, please get in touch by calling 0208 428 5433. Alternatively, head to our contact form. We look forward to hearing from you!


  • ‘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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