Sash Windows

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Our Timber Sash Windows

Our timber sash windows are one of our most popular products—crafted from the finest timbers using traditional joinery methods and enhanced with modern materials to deliver windows that are not only beautiful, but also secure, durable, and energy efficient.

Thanks to modern technology, our sash windows are resistant to warping or twisting, require minimal maintenance, and meet today’s high standards for thermal insulation, soundproofing, and security.

Each unit features advanced glazing, including warm edge spacer bars and Argon gas-filled units, providing excellent energy efficiency and acoustic performance—making them a stylish and worthwhile investment for your home.

View a Selection of our Timber Sash Window Installations

Standard Specification

Each of our timber sash windows is individually measured to ensure a perfect fit and built to meet the demands of period properties. They are fully drained and vented, factory-glazed with Argon gas-filled sealed units that feature soft coat energy-saving glass and warm edge spacer bars—delivering an impressive U-value of 1.1 W/m²K.

For lasting protection and a flawless finish, all windows are factory-finished with preservative, primer, and two coats of high-quality micro-porous paint. We craft our sash windows from a selection of premium timbers, including Hardwood, Accoya, and Oak, and can paint or stain them to suit your specific requirements.

Our complete range of timber sash windows combines traditional detailing with modern performance, making them the ideal choice for heritage homes and listed buildings.

10 Year Warranty

Installed double-glazed timber windows and doors come with a 10-year guarantee, giving you peace of mind in the quality and longevity of our craftsmanship.

Made in Britain

All of our products are crafted from start to finish in our UK workshop by skilled artisans, ensuring exceptional quality and attention to detail at every stage.

Why Choose Our Timber Sash Windows?

Timber sash windows are a superb addition to any period property. Not only do they add charm and character, but they also provide one of the most effective natural ventilation systems ever designed.
Our timber sash windows are the ideal choice for retaining the original character of heritage homes while offering warmth, comfort, and long-lasting durability. Crafted from premium materials, they deliver both style and performance.
All of our work complies with, or exceeds, current Building Regulations and FENSA requirements. In addition to our full installation service, we also offer supply-only options and regularly work with architects, builders, and self-builders across the UK.
Contact us today to discuss your project, arrange a free site survey, book an out-of-hours appointment, or visit our workshop—we’d be delighted to welcome you.

Contact us today to discuss your project – we’re here to help bring your vision to life.

For over 30 years, we’ve been designing, crafting, and installing high-quality timber sash windows, casement windows, doors, and more. From the initial design to the final brushstroke, we offer a complete, straightforward service focused on quality, detail, and customer care.

Luan Hughes

18:57 27 Mar 25

Professional from start to finish and so pleased with our replacement conservatory windows and roof!

Sue Vannelli

14:13 18 Feb 25

Traditional Conservatories certainly went the extra mile with our installation
We are extremely pleased with the result. Many guests have commented on what an amazing job Traditional Conservatories did with achieving a like for like replacement of the original 1937 windows. The service was friendly and professional. We would have no hesitation in recommending them.

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stuart mccabe

11:07 05 Dec 24

Traditional Conservatories made me a beautiful arch top frame and gate in Accoya to my template and size . They spray finished it . Looks amazing. They are one of the best manufacturers in the Midlands and very knowledgeable and helpful, we have used them many times and will continue to do so . Stuart McCabe and Daughter Property services, Solihull builders .

Ray Turner

17:27 27 Nov 24

Everything about our experience ,the recommendation for the glass , the work and the service were excellent.

cj sp

09:11 07 Sep 24

All staff ;office,design,installation team, very helpful. Difficult bay and side window replacement completed to my spec and satisfaction of the extremely fussy Bournville Village Trust.

Martin Rickards

14:28 07 Feb 24

Great quality job for a small porch but looks great and the fit and finish is super. You need to be patient when dealing with them but its with the wait.

Gill Frost

16:40 29 Jan 24

Our new lantern light, and double doors to the garden, were wonderfully designed and installed by Traditional Conservatories.
The team were magnificent and they have transformed the look and feel of our kitchen.
Thank you all.

Maggie Butler

15:42 09 Jan 24

Traditional Conservatories have been replacing or re-furbishing our Edwardian windows for about 20 years, and we have always been delighted with the quality of their work. They have recently replaced the frame for a a very fragile stained glass window. The work was undertaken with great care and we are delighted with the result.

Ellie Pardoe

14:42 09 Jan 24

Excellent quality front door, fitted in one day with minimal disruption. Would highly recommend