Timber sash windows from Nine Zero add classic charm and character to any property. Sash windows are perfectly for creating a period aesthetic, as well as providing energy efficiency and security for a complete package.

These high-quality sash windows are appropriate not only for period properties but also new builds where the sash windows are required to meet thermal, acoustic and PAS 24 security standards. Designed with all the traditional detailing and carefully selected decorative features such as glazing, bars, mouldings and architectural hardware. We offer a wide variety of options to suit all our products. Available in both spiral balance or cords & weights options.

Heritage Range

The Heritage range has been specifically designed for listed buildings where approval is required. As a London based company, we have gained the wealth of experience much needed to deal with projects under strict conservation restrictions. Our Heritage Range features lambs’ tongue and putty style bead mouldings and bars, angel locks for child safety, decorative horn details and slim frame sections. Available in both spiral balance or cords & weights options, with a single glaze 4mm glass or slim line 14mm glass.

Energy Efficiency

As well as offering a unique aesthetic, our timber sash windows also perform extremely well in terms of efficiency. As wood is a natural insulator with very low thermal conductivity, it is the ideal material for retaining heat.

For homeowners looking to reduce energy bills, timber sash windows are the perfect choice. Meeting BS 6375:2015 Parts 1 & 2 for weathertightness and u-values as low as 1.0 w/m2k.

Our timber sash windows also ensure properties are kept safe and secure. Made from inherently strong wood, they also meet PAS 24:2016 and are Document Q compliant helping your project meet Building Regulations and protect properties against intruders.

Multi-point locking systems are fitted as standard and all glazing is internally beaded for ultimate security and added peace of mind.

Sustainability

In recent years, climate change is coming increasingly into the limelight, with people more conscious than ever about how they can improve their impact on the environment. Because of this, there has been an increased demand for timber windows and doors as it has a much lower carbon footprint than alternative materials.

Timber sash windows are ideal for climate-conscious homeowners, or architects and developers looking for sustainable option. We source all our timber from responsible suppliers certified by the Forest Stewardship Council (FSC) which protects the world’s forests and woodland, and we also recycle our timber waste on the surrounding farms.

Timber is also the cost-effective option, as research has shown that timber windows are between 14-25% cheaper when considered over the ‘whole life’ cost.

Glass, hardware and colours

There are a wide range of glass options available for our timber sash windows to suit individual project specifications, including acoustic glazing and slimline glazing for heritage projects and listed buildings.

Our range of additional hardware can help add the perfect finishing touch to your timber sash windows. Choose from a wide selection of lifts, locks fasteners, handles and pulleys in various finishes and our 5-year warranty give you peace of mind.

Our windows can also be painted in any RAL colour, as well as traditional heritage Farrow and Ball range. We supply a 10-year warranty on our painted products.