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Timber sash windows in London

Our classic, timeless wooden sash windows are a favourite choice for any development or restoration project across London. Blending aesthetic charm with modern performance, they offer an ideal solution for architects and specifiers working on heritage properties in areas like Islington or Kensington, as well as contemporary projects throughout the capital.

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Our classic, timeless wooden sash windows are a favourite choice for any development or restoration project across London. Blending aesthetic charm with modern performance, they offer an ideal solution for architects and specifiers working on heritage properties in areas like Islington or Kensington, as well as contemporary projects throughout the capital.

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When it comes to sash window restoration in London, we offer timber frames that perfectly replicate the character and style of your historic property. As industry leaders in the bespoke manufacture of like-for-like replacement windows, we utilise cutting-edge technology to deliver modern standards in sash windows, ensuring your London project retains its charm while benefiting from improved performance.

Timeless Sophistication Meets Contemporary London Living

Our traditional timber sash windows seamlessly blend classic sophistication with the needs of contemporary London developments. Offering a range of styles and finishes, they are suitable for a variety of projects—from refurbishing historic homes in Hampstead to new builds in Greenwich. With options tailored to meet your specifications, TRC Windows provides solutions that enhance the aesthetic and functional qualities of your designs.

Choose from hardwood or softwood frames, complemented by factory-applied three-coat RAL finishes to achieve a bespoke look. Glazing options include safety, obscured, acoustic, and solar control glazing. Double glazing is standard, with triple glazing available for additional insulation and noise reduction—ideal for London’s busy streets. Our windows deliver U-values as low as 0.79 (triple-glazed flush casement), ensuring excellent energy efficiency without compromising on style. A double-sealing gasket system provides robust protection against London’s unpredictable weather, while easy-clean options offer functionality without sacrificing design versatility.

TRC Windows combines timeless elegance with advanced performance to meet the demands of modern architectural projects across London.

Ironmongery

Pulleys for sash windows

in 42mm, 51mm and 64mm wheel sizes.

Sash lifts

in four classic styles: the cast hook, pressed lift, ring lift or cast lift.

Sash window fasteners

in Reeded Knob, Brighton, Fitch, Claw and Straight Arm designs, and lockable if you prefer.

Sash stops

in two styles: the Weekes stop (unlatches downwards to form the stop), and the screw-in mini sash stop (supplied with one receiver).

Sash handles

in 102mm, 124mm and 140mm widths (measured end to end). The 140mm width is fixed with two adjacent screws on each end.

Finishes

All our ironmongery is available in a choice of brass, polished chrome or satin chrome as standard, plus a host of other finishes available to special order (please allow a 2-3 week lead time).

Responsibly Restoring Heritage and Preserving Authenticity

Whether you’re specifying timber sash windows for the restoration of a period property in Islington or upgrading the fenestration of a Kensington project, TRC Windows offers a solution tailored for architects and specifiers. Our timber sash windows are designed to preserve the distinctive character and charm of Victorian or Georgian architecture, meeting conservation area requirements and adhering to London’s planning and heritage regulations.

We also prioritise sustainability. Our timber sash windows are crafted from responsibly sourced, FSC-certified materials. The FSC certification guarantees that the timber is sourced from forests managed with environmental and social responsibility. By specifying FSC-certified timber sash windows, you are ensuring compliance with sustainability objectives while delivering premium-quality solutions that align with modern ecological standards.

Digging into
the details …

Our timber sash windows are available with hardwood or softwood frames, featuring RAL finishes and four glazing options:

  • safety
  • obscured
  • acoustic
  • solar control

The premium paint and stain finishes on our timber windows provide exceptional durability, offering protection for 10 and six years respectively, against blistering or flaking. These finishes ensure long-lasting performance, making them an ideal specification for London’s heritage properties and architectural projects requiring reliable and aesthetically appropriate materials.

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Our Timber Sash Window Range

Traditional Box Sash Windows

The hallmark of period properties, these windows use a weight-and-pulley mechanism for smooth operation. Ideal for conservation areas, they maintain the authentic charm of wooden windows while delivering modern thermal and acoustic performance.

Easy Clean Sash Windows

These innovative sash windows combine traditional aesthetics with a tilt mechanism, making internal cleaning effortless. They are perfect for projects requiring low-maintenance solutions and peace of mind for users.

Spring Sliding Sash Windows

Spring sliding sash windows are a contemporary alternative to traditional systems. With slimmer frames and a discreet spring mechanism, they provide a balance of classic design and modern functionality.

Triple Glazed Sash Windows

Designed for sustainable developments and improved energy efficiency, our triple glazed sash windows achieve remarkable U-values as low as 0.79 W/m²K. They are ideal for reducing heat loss without compromising on aesthetic appeal.

Vacuum Glazed Timber Sash Windows

Offering the latest in glazing technology, these windows incorporate vacuum-sealed glass for superior performance. They provide excellent thermal and acoustic insulation while preserving the slim profiles and charm of timber casement windows.

Designed for Heritage and Contemporary Projects

Our timber sash and wooden casement windows are crafted with the flexibility to meet both restoration and new-build requirements. For listed buildings or conservation areas, our like-for-like replacements preserve the architectural integrity and timeless elegance of the most beautiful homes. For contemporary projects, our bespoke designs combine modern functionality with striking aesthetic appeal.

Key Features of Our Windows

  • Material Options: Select from durable hardwood or softwood to ensure the timber windows meet the specific demands of your architectural project.
  • Custom Finishes: Our factory-applied three-coat spray finishes are available in a broad selection of RAL colours, offering enduring protection and an aesthetic that complements period or contemporary designs.
  • Advanced Glazing: Double glazing is standard, with optional triple or vacuum glazing for improved energy efficiency—ideal for enhancing thermal performance in London’s climate.
  • Weatherproofing: A double-sealing gasket system ensures superior resistance to the challenges of London’s variable weather conditions.
  • Sustainability: All timber products are FSC-certified, supporting sustainable sourcing and aligning with the environmentally responsible objectives of London’s planning and architectural standards.

Confidence for Architects and Specifiers in London

  • Conservation-Ready: Fully compliant with London’s stringent conservation regulations for historic buildings.
  • Tailored Solutions: Customisable frames and finishes designed to meet your specific requirements.
  • Thermal Performance: Reduce heat loss and achieve energy efficiency targets with our advanced glazing options, perfect for the London climate.
  • Craftsmanship You Can Trust: Each window is expertly crafted to blend durability with outstanding aesthetic appeal, reflecting the character of London’s diverse architecture.

Whether you’re restoring the historic elegance of a Victorian terrace or enhancing the sleek lines of a contemporary flat, our range of sash and flush casement windows provides the ideal solution for every project. With TRC Windows, you can trust in exceptional products designed to endure the test of time while complementing the unique beauty of London.

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