Windows uPVC Sliding Sash – Quality Windows & Doors Supply and Fitting

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uPVC PROFILE: KOMMERLING & LEGEND 70

Sash box vertical sliding windows

What is a UPVC sash window?

A uPVC sash window is a vertically sliding window made from durable, low-maintenance uPVC, designed to mimic the traditional appearance of wooden sash windows while offering modern benefits like energy efficiency and easy cleaning. It features two movable glazed panels, or “sashes,” that slide up and down within a frame using a modern spring or spiral balance system, replacing the older rope-and-pulley method. These windows can also tilt inward for effortless cleaning from inside the home and come in various colours and woodgrain effects to suit different properties.

Traditional feel into your home, an integral part of British architectural history.

Our UPVC Sash windows blend the timeless elegance of traditional sash designs with the cutting-edge benefits of modern technology, offering exceptional durability and energy efficiency.

KEY FEATURES

Material:

Made from uPVC (unplasticized polyvinyl chloride), a synthetic material known for its durability, weather resistance, and low maintenance requirements.

Operation:

The windows have two vertically sliding sashes that move independently within the frame.

Mechanisms:

Instead of traditional weights and ropes, uPVC sash windows use innovative spiral balance systems for smooth, easy operation.

Tilt Function:

Many models include a tilt-inward feature for the sashes, allowing for simple cleaning of the window from inside.

Aesthetics:

Designed to replicate the look of traditional timber sash windows, they often feature authentic-looking details like ovolo bead profiles and mechanical joints.

Ventilation:

The vertical sliding action allows for flexible ventilation control, including the ability to open both the top and bottom sashes simultaneously for effective air circulation.

BENEFITS

Low Maintenance:

uPVC requires no painting, varnishing, or complicated upkeep, simply needing occasional wiping to keep it clean.

Energy Efficiency:

Modern uPVC sash windows offer high thermal performance with excellent seals, reducing heat loss and enhancing comfort.

Security:

They incorporate robust locking mechanisms, and internal glazing adds an extra layer of security against forced entry.

Authentic Style:

They provide a timeless aesthetic that is ideal for both traditional period properties and modern new builds seeking classic charm.

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