Sash Window Draughtproofing in London

Professional draughtproofing designed specifically for period, conservation and listed-building sash windows, improving comfort, efficiency and operation without altering original character.

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Sash Window Specialists

Why Draughtproof Sash Windows?

  • Warmer, More Comfortable Rooms

  • Lower Heating Bills

  • Eliminates Rattling & Improves Smooth Operation

  • Noticeable Reduction in Outside Noise

  • Discreet, Reversible & Conservation-Friendly

  • A Cost-Effective Upgrade Compared to Replacement

Make Your Home Warmer Today

Book professional sash window draught proofing with Kensington Sash.

Kind words from neighbours

Our windows were in a bit of a state. These guys did a great job fixing them up without charging a fortune other companies had quoted 👍

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Oliver Rowland

2 months ago

Recommend this sash window company if you’re looking to replicate your original windows. Had the pleasure of dealing with Luke throughout the order process, who was always on hand to answer any questions and then the team that completed the works, Nathaniel and Louis- thank you.

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Amedeo Luca Davico di Quittengo

11 months ago

A great and reliable company with accurate measurements and high-quality windows. Highly recommended! The owner is very easy to communicate with and always available to discuss any details.very friendly too... for us is a good 10/10!

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Michiko Sushino

11 months ago

FAQs

Frequently Asked Questions

Your key questions about sash window draught proofing, answered.

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How much of a difference does draught proofing actually make?

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Is draught proofing suitable for listed buildings and conservation areas?

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Will draught proofing change how my sash windows look?

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Will your work affect the appearance of my original windows?

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Will my windows operate better after the work is done?

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How long does the draughtproofing process take?

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