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A Beautiful Addition to Any Home
Why Should You Choose Timber Sash Windows?
Our timber sash windows are an excellent addition for homeowners across London, Surrey, and Kent. Sash windows are vertically opening windows most commonly associated with period properties. First introduced in the 13th century, these designs have changed throughout history and are now beloved as a beautiful addition to any home. Improve your home’s traditional look by adding timber Georgian Bars or Astragal bars, alongside customisable monkey tail handles and pear drop handles.
Our energy-efficient timber sash windows are fitted with advanced double glazing, modern weather seals, and draught-proof measures to make sure they are well insulated. Additionally they are easy to look after and come with unrivalled security and soundproofing features. This helps make them a stunning choice for your home.

Key Features of Wooden Sliding Sash Windows
Select From a Bespoke Range of Styles and Colours
At Premier Windows, our timber sash windows are available in an array of configurations, colours, and varnishes that suit the interior and exterior of your home. We offer a bespoke selection of designs, such as dual swing wooden sash windows, tilt and slide wooden sash windows, or sliding timber sash windows. Choosing our timber sash windows will enhance your market value.
All our wooden sash windows are made to measure, so no matter how big or small your London home is, we have a window that is ideal for you. Georgian bars and astragal bars enhance your home’s character, or select from monkey tail handles and pear drop handles. Additionally, we offer obscure and transparent glass to improve your home’s privacy levels.
Glazing Options
Our timber windows are all fitted with premium double glazing as standard and you can expect a high level of energy efficiency and security. However, this isn’t your only option. We have several upgrades and add-ons available for that personal touch.
For instance, we can increase the performance even further with triple glazing. We have acoustic laminated glass for extra noise reduction and have a selection of obscure glass with intricate patterns to help maintain privacy. You can discover more by visiting our Glazing Options page.
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Frequently Asked Questions
Our Most Common Queries
What are timber sash windows?
Our timber sash windows are popular and versatile. They feature sturdy wooden frames with glazing bars for a modern design. Add Georgian or astragal bars to elevate your home’s classic charm and increase its market value.
What glazing options are available for your timber sash windows?
Modern timber sash windows are fitted with double glazing to enhance energy efficiency. Premier Windows offers Guardian glass with specifications of 24mm overall (4-16-4) with argon gas, white spacer bar as standard, and Low E soft-coated, achieving a U-value of 1.4 W/m²K. Alternatively, choose from a variety of obscure or transparent glass to protect your privacy.
Are your timber sash windows energy efficient?
While traditional single-glazed timber sash windows may not be highly energy efficient, our modern versions with double glazing and proper seals significantly improve thermal performance, reducing heat loss and cutting energy bills.
Can I customise my timber sash windows?
Yes, timber sash windows can be customised to match the architectural style of your property. Options include different finishes, glazing bars, and hardware choices to ensure the windows complement your home’s character.
How do timber sash windows compare to uPVC and aluminium?
Timber sash windows offer a classic aesthetic and are environmentally friendly due to the renewable nature of wood. They can be more expensive and require more maintenance than uPVC or aluminium windows, but many homeowners find the timeless appeal and sustainability of timber to be worth the investment.
How long do timber sash windows last?
Timber sliding sash windows have an average lifespan of between 65 and 80 years as opposed to a uPVC average life of 30-35 years. This does not take into account the possible longevity of wooden windows lasting easily more than 100 years.
Why won't my wooden sash windows stay open?
If your sash window doesn’t stay open, it may be due to a broken sash cord or a balance issue. It’s best to consult a professional for proper repair.
Do timber windows add value to your property?
Yes, our timber sash windows come with advanced double glazing as standard, which will help increase natural light, thermal efficiency, and security. This helps improve your home’s market value and kerb appeal.