At SashWise, we restore and replace timber sash, casement windows and doors with care and precision. Discover how our expert services can enhance your home’s character and comfort.
Offering a specialist family-run service from our base in Twickenham, SashWise has been replacing, renovating and restoring sash windows in West London since 2006.
We are experts in traditional sash window repair, replacement, and restoration
Our windows are craftsman made and customised to suit your home and budget
Our services include rot repair to draught proofing through to sash window refurbishment and full replacement
Bringing West London’s sash windows to life
Whether it’s new double sash windows in Teddington, draught-proofing in Kingston or window sill replacement in Chiswick, SashWise serves customers right across West London. Why not take a look and see if we cover your area?
At SashWise, we know every home is unique and every window we make is crafted to reflect that. In this video, Dan, who leads the day-to-day running of SashWise, talks you through how we work and what makes us different. A hands-on founder who still loves getting on-site and donning the tool belt, Dan shares how our family-run team has been restoring and replacing timber windows and doors across West London since 2006. From matching period details to managing every step from survey to installation, everything we do is about care, quality, and enhancing the character of your home.
New Sash Windows
We can make double glazed hardwood timber sash windows to fit within your original box sash frame.
Read MoreServicing & Draught-Proofing
Tired of cold draughts and stuck sash windows? Our expert servicing brings your windows back to life, making your home warmer, quieter and easier to live in.
Read MoreCase Studies
Throughout West London, SashWise has helped people transform their sash windows and the appearance, security and warmth of their homes.
View Case StudiesOur News & Advice
Stay up to date with the latest news, tips, and updates from Sashwise, including expert advice on sash window care, energy efficiency, and home improvement.
Read Our News
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We have a long-serving experienced team
We take extreme care in our clients’ homes
If we find rot, we deal with it!
Local workshop in Twickenham
We match your original windows
We use the best draught-proofing system available
We use the highest quality materials
We charge 0% VAT on all draught proofing work
Twickenham Green
From start to finish SashWise have been proactive and professional. Great communication. We are absolutely delighted with the windows that are now installed. Nothing but praise for Dan, Jay, and Tom for the installation, which was faultless.
Hammersmith
At this property in Hammersmith, we replaced the original single glazed timber sash windows with complete new Accoya timber double glazed sash windows incorporating a standard 20mm double glazed unit.
Please complete the form to discuss your sash window requirements or for further information about our services.
Address:
Unit 39, Railway Arches
Popes Grove
Twickenham TW1 4JW
Tel: 0208 977 4627
