Draught Proofing Sash Windows for Period Homes | MWM Matt Window Mate

A restored bay window featuring integrated draught-proofing, preserving original architecture while improving thermal comfort.

At MWM Matt Window Mate, we specialise in traditional timber sash and case windows designed for period and heritage properties across Glasgow. Our award-winning work combines traditional joinery craftsmanship with modern energy-efficient glazing, improving comfort and performance while maintaining the architectural character of your home.

As multi-award-winning specialists in traditional timber sash window replacement and performance upgrades, we are recognised for our contribution to preserving architectural heritage while delivering modern energy efficiency. Our like-for-like double-glazed timber sash windows and discreet draught-proofing systems offer a refined solution for homeowners who want a warmer, quieter home without losing the building’s original charm.

Alongside our bespoke double-glazed timber sash windows, we also install a professional draught-proofing system designed specifically for timber sash windows — offering a discreet upgrade that supports warmer, quieter living without altering the traditional appearance of your property. Our method blends seamlessly into the original design, preserving the authentic look of your sash windows.

What Is Draught Proofing for Timber Sash Windows?

Example of our discreet draught-proofing system installed on new double-glazed timber sash windows for a client in Glasgow’s West End. The seal integrates seamlessly into the traditional joinery design, improving comfort and efficiency without changing the original appearance of the window.

Draught proofing is a precision sealing system applied to the box frame of the window and the timber sashes. It reduces heat loss and improves insulation by closing the gaps where air can escape or enter.

This system works perfectly on existing single-glazed sash windows and it also integrates beautifully with our modern double-glazed timber sash windows — delivering the performance of a high-efficiency window while retaining the traditional appearance required in period properties.

Our draught-proofing system is:

✔ discreet and does not change the look of the window

✔ installed without the need for planning permission

✔ designed specifically for timber sash windows

✔ proven to improve thermal and acoustic comfort

This ensures the windows look authentic while performing to modern expectations.

Benefits of Draught Proofing Timber Sash Windows

Improved Energy Efficiency

The biggest source of heat loss in period sash windows comes from single-glazed panes and the small gaps between the sash and frame. Applying a professional draught-proofing system to your existing single glazing will seal the gaps causing draughts, noticeably improve insulation and reduce noise transmission.

For the highest level of performance, we recommend combining new double-glazed timber sash windows with our integrated draught-proofing system. Together, these upgrades provide:

• improved energy efficiency

• lower heating bills

• reduced condensation and cold spots

• enhanced comfort and security

• stabilised room temperatures

• lower energy consumption

• improved acoustic comfort

• no rattling during windy weather

Our discreet draught-proofing system is engineered specifically for timber sash windows. It ensures:

• smooth, easy sash operation

• continuous airtight seals

• improved energy ratings

• reduced heat loss

• balanced ventilation

All of this is achieved without affecting the heritage appearance of the window.

This is one of the most effective ways to increase energy efficiency in traditional Glasgow properties, including tenements, traditional townhouses and period villas.

A Sustainable Choice for Period Homes

Fully upgraded sash window in a conservation property, combining original aesthetics with modern draught-proofing features for reduced heat loss and noise.

Choosing like-for-like timber sash window replacements with integrated draught-proofing supports:

• long-term durability

• natural, recyclable materials

• reduced heating bills

• improved comfort and living standards

• a tangible increase in property value

Timber Sash Windows for Traditional Buildings

Our windows are crafted to match original profiles, ensuring they sit comfortably within conservation area requirements while delivering 21st-century performance.

We design and install custom-made timber sash windows that mirror the look of the originals, while integrating modern glazing and sealing systems for comfort and energy efficiency.

Enhance Your Home Without Losing Its Heritage

If you’re considering upgrading your existing sash windows with our energy-efficient draught-proofing system, or exploring full sash window replacement in a period property, our bespoke timber sash window service is designed for you.

We work with you from the very beginning — from a free, no-obligation on-site survey, to a full written estimate, support documents for your planning application (if required), detailed design specifications, installation and the final finishing touches tailored to your home. All while maintaining the elegance and character your home was built with.

Every project — from a traditional tenement flat to a grand townhouse or period villa — receives the same level of precision, care and craftsmanship. We work with you and for you.

Contact MWM Matt Window Mate today to discuss your project and discover how timber sash windows and discreet draught-proofing can improve the comfort and efficiency of your period home.

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We no longer take contact by phone to keep communication organised and focused for every project.

Draught Proofing Traditional Sash Windows by MWM Matt Window Mate

Draught Proof Your Sash Windows with MWM Matt Window Mate!