Fortis & Hooke

Windows Specialised in London

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International House
124 Cromwell Road

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Fortis & Hooke are Wooden Window and Door restorers with a passion to repair, renovate and retain. This includes renewing the beauty, functionality and historic appeal of timber windows and doors within period properties. Our mission is to continue developing innovative systems and methods to restore original wooden windows and doors in an affordable yet effective manner. Our development of a sustainable system has now made the retention of original wooden windows a viable option. We believe that by offering this alternative, we are doing our bit to protect both our heritage and our environment.


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Fortis & Hooke Introduction

Products and Services

Sash window restoration

Our sash window restoration process enables us to repair, paint and refurbish practically any original sash window. The system has been forged through trial and error over several years and has developed into a mechanism that works consistently.

sash window draught proofing

Our sash window draught sealing system is aptly named the Fortis DS Perimeter Sealing System. This system is fully tested, practically flawless in execution and it's arguably the most effective system on the market to draught seal sash windows.

Sash window Repair

Our sash window repair service has saved thousands of sash windows where other companies have suggested complete replacement. This service is the first step in our policy to foremost aim to repair, renovate and retain.

Replacement sash windows

At Fortis & Hooke we prefer not to replace original sashes and therefore our replacement service is only offered when absolutely necessary. We replicate any design allowing our clients to retain the original architectural feel of their homes.

Painting sash windows

The painting of sash windows is our company's area of expertise. Decorating a sash window is not an art that any decorator “off the street" can easily master. If not done properly, certain common problems can arise.

We offer these payment methods

  • MasterCard
  • Visa


Fortis & Hooke kept their appointment to fix the sticking door this morning. They seem to be a very nice company to deal with, punctual, polite and attentive. Thanks

Mr. J (Tunbridge Wells)

Thank you for sorting out the window and sill last Friday. I was pleased with the quality of the repair and the efficiency with which it was carried out. Your operative was very informative and polite.

Mrs. R (London)

Your lovely and helpful team worked really hard last Saturday to finish getting my “new” sashes in place and the difference it makes is incredible, no more draft and rattling, a lot warmer and noticeably quieter, I should have done this much earlier! And what a pleasure to actually be able to open the window and this will be particularly wonderful in the summer, so I can not wait.

Mrs. W (W8)

Testimonials are added by the business owner and are not independently verified.

Opening hours

Monday to Friday: 9am - 5pm

Saturday to Sunday: Closed

Key Services

door seals window seals, sash window company, Sash Window Draught Sealing, Sash Window Painting, sash window refurbishment london, sash window renovation, sash window repair, sash window replacement, sash window restoration

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