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Timber Sash & Casement Window Restoration & Repair Specialists

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Approved & Registered Installers

Dedicated Restoration Preserving Heritage Restoring Character On Timber Sash & Casement Windows


With more than 30 years of combined experience, CTWS specialises in the repair, restoration and refurbishment of traditional timber sash and casement windows across residential, listed and commercial properties.

From detailed timber repairs and draught proofing to glazing upgrades and full refurbishment, we combine traditional craftsmanship with modern restoration techniques to improve performance, longevity and appearance, while preserving the original character of your property.

We offer a complimentary, no-obligation site visit, providing honest advice, clear recommendations and a detailed estimate so you can move forward with Complete confidence.

What our customers say

From your initial enquiry through to completion, you can expect honest advice, clear communication, quality craftsmanship, and a respectful, tidy service. We take pride in protecting your home, keeping disruption to a minimum, and delivering carefully finished timber window repairs and restoration works built to last.

What you can expect

From your initial enquiry through to completion, you can expect honest advice, clear communication, quality craftsmanship, and a respectful, tidy service. We take pride in protecting your home, keeping disruption to a minimum.

Listed Buildings

We specialise in working on listed buildings and properties within conservation areas, carrying out sensitive timber window repairs and restoration works that preserve the original character and heritage of your home while respecting traditional detailing and planning requirements.

Get Ready For Winter

Winter Comfort Starts with CTWS

Prepare your home for the colder months with professional draught proofing and secondary glazing solutions from CTWS.
By reducing unwanted draughts, improving insulation, and helping retain heat, by reducing unwanted draughts, improving insulation, and helping retain heat.

Keep the Character, Lose the Draughts

  • Preserves the original character and appearance

  • More cost-effective than full window replacement

  • Extends the lifespan of existing timber windows

Explore Our Professional Services

FULL WINDOW REFURBISHMENT

  • Extends the life of timber windows and frames

  • Restores strength and stability

  • Saves money compared to full replacement

ROTTEN TIMBER REPAIRS

  • Improves thermal insulation and energy efficiency

  • Reduces heat loss and lowers energy costs

  • Maintains the original appearance of traditional windows

SLIM DOUBLE GLAZING UP-GRADES

  • Increases indoor comfort

  • Helps maintain a more consistent room temperature

  • Integrated and discrete

DRAUGHT PROOFING

  • Enhances sound insulation and lowers outside noise

  • Preserves original windows and period features

  • Ideal for listed and heritage properties

SECONDARY GLAZING

  • Improves indoor comfort in both winter and summer

  • Maintains original window frames in many cases

  • Suitable for heritage and listed buildings

VACUUM GLAZING

  • Improves overall appearance and finish

  • Seals small cracks and surface imperfections

  • Reduces long-term maintenance costs

PROFESSIONAL PAINTING & FINISHES

  • Reduces long-term repair and replacement costs

  • Extends the lifespan of windows and timber frames

  • Provides ongoing protection through regular inspections and upkeep

MAINTENANCE AND AFTERCARE

At Complete Timber Window Solutions ‍ ‍We are committed to delivering quality craftsmanship, long-lasting results, and exceptional customer service, while remaining flexible to suit your individual requirements.

Client Reviews

Dec 05. 2025

Great Company, Highly Recommended

“I been using CTWS to refurb all our wooden windows in phases over the last year or so. They have been great. Attention to detail, restore old windows very sympathetically and have retrofitted slim line double glazing and draft proofing where possible and so now we have beautiful old windows to more modern standards. Would definitely recommend..”

Feb 01, 2026

Highly Recommended

“We spent some time searching for a company to restore the original windows in our Georgian house and are so pleased we found CTWS. The team worked so carefully and with such skill to preserve and refurbish our wooden sash windows, including adding invisible double glazing that has made a big difference to the warmth of the house. The windows look wonderful now. Great customer service too. We cannot recommend highly enough.”

Mar 30, 2026

Fantastic from Start to Finish

“I spent quite some time looking for a company to repair wooden sash windows in our listed Georgian house and from the initial enquiry to the completion of work, CTWS didn't disappoint. Stuart and the team were able to fit me in to do an urgent repair and couldn't have been more helpful. Skilful, hardworking, tidy and a pleasure to have around, so ticked all the boxes for me!

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Frequently Asked Questions

Get in touch if you have any specific questions you would like to ask. We are always happy to help

  • If you have chosen a package that includes painting then yes we would repaint the windows after the repairs have been completed

  • This is a very common problem, as part of our draught proofing installation or refurbishment packages we will free up your windows and return them to full working order.

  • This will all depend on a number of factors that we have to consider such as location, window size and accessibility, the amount of repairs required, if there are any broken glass panes, if you require draught proofing installation, or double glazing upgrades, painting etc.

    It is best to speak to one of our advisers and book a survey.

  • Yes. Usually this can be resolved. Our draught proofing service will eliminate that problem.

  • We regularly work on Grade 2 listed buildings & properties in conservation areas. Like for like repairs do not require planning permission as they do not change the appearance of the building.

  • No, our slim double glazing units are designed to look like single glazing but have the modern day attributes.

  • No, we do all of our work onsite, however, if we need to have a new sash or casement window manufactured because its beyond economical repair we will remove it and cover the window opening with board to make the property secure during the manufacturing process.

Start Your CTWS Journey

Contact us today & book a FREE survey with our experienced & friendly surveyor. No obligation or hard sale just a professional assessment & advise on how we can help to get your windows back to how they once were.

We don’t just offer window services…

…we offer end-to-end seamless and stress-free solutions that will revitalise your windows.

Book a free window survey and we will provide a fully detailed & itemised quotation for your consideration.


Have a question or would like to know more

07379282490 | 01202 668214

and speak with our experienced & friendly advisor today.


Find Us

 

Email: stuart@ctws.co.uk

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