Timber Sash Windows

Experience the elegance and timeless appeal of timber sash windows, expertly crafted to combine classic design with modern functionality. Whether you're restoring a period property or adding character to a contemporary home, our sash windows are a perfect choice.

Timber Sash Windows Construction On Weights

What Are Timber Sash Windows?

Timber sash windows use the traditional vertical sliding design, featuring two panels that glide effortlessly within the window frame. They are commonly referred to as:
  • Sliding Sash Windows
  • Hung Sash Windows
  • Box Sash Windows
These windows have been a staple in British architecture, with their classic design enduring for centuries. When properly maintained, they can last over 100 years, making them a sustainable and durable investment.

Key Benefits of Timber Sash Windows

Discover why timber sash windows are the perfect blend of classic charm and modern functionality. From their timeless design and durability to excellent airflow and conservation-friendly features, these windows enhance any home with style and practicality.
Natural Light

The large glazed surface area maximizes natural light, brightening any room.

Durable Design

Crafted exclusively from hardwood, ensuring long-lasting strength.

Weather Resistant

Unlike casement windows, sash windows cannot be blown open or shut.

Excellent Ventilation

Both vertical panels open easily, promoting effective air circulation.

Top-Tier Box Sash Windows Built for Quality and Longevity

At International Windows Group LTD, we exclusively offer top-tier box sash windows renowned for their exceptional quality throughout London. Our products are a perfect mix of great materials and modern technologies, complemented by years of invaluable experience that has earned the trust of numerous clients. We assure clients of long-lasting longevity for their windows by spraying four layers of waterproof paint on our products.

Additionally, our windows are compatible with conservation area by using Victorian style design.

Timber Sash Windows Construction On Springs

Technical Specifications
& Colour Options

Explore the detailed technical specifications and versatile colour options of our timber sash windows. Each component is meticulously crafted to ensure superior quality, durability, and timeless design, tailored to meet the highest standards of performance and aesthetics.

WOOD

Soft wood: pine, Hard wood: meranti, accoya, oak and other 3 layer glued engineering wood

STRUCTURE

Windows are sled up and down.
Drive supported with lead weight or springs placed in window frame.

PAINT

Scumbles emphasizing wood structure, opaque in full RAL palette 4-layer system for painting with highly dilutable ecological paints, single and double colored joinery

GLAZING

Standard: “24 mm thermofloat” glazing Ug= 1,1 W/m2K Optionally: Triple panel, Safe and anti-burglary window panels, Absorptive and reflective panels, Sound absorption panels, Ornament, satin panels.

OPENING

Standard: Up-down slide

FEATURES

Standard: ferrules of renowned ferrules of renowned companies: Mightons Products. Drive supported with lead weight or springs placed in window frame.

HANDLES

Available standard patterns below

SEALS

Q-lon made by Schlegel

SILICONE

Bilateral silicone covering

GEORGIAN BARS

Mullions bilaterally glued in a color of the window

SPACEBAR

Standard – Aluminum Optional – Plastic-warm frame colors: swhite, black, light brown, dark brown

ADDITIVES

Horns, vents, restricktors,

ACCESSORIES & OPTIONS

Explore a wide range of accessories and options designed to enhance the style and functionality of your windows. Choose from various finishes and designs to perfectly match your needs and preferences.

GOLD

ANTIQUE BRASS

CHROME

SATIN CHROME

SATIN NICKEL

WHITE

BRASS

ANTIQUE BRASS

CHROME

SATIN CHROME

SATIN NICKEL

WHITE

BRASS

ANTIQUE BRASS

CHROME

SATIN CHROME

SATIN NICKEL

WHITE

GOLD

ANTIQUE BRASS

CHROME

SATIN CHROME

SATIN NICKEL

WHITE

Stop restricktors