Timber Trade Sash Windows

Energy efficient timber sash windows

Our sash windows exceed current Part L Building Regulations requirements, making them an ideal choice for your construction projects. Engineered for superior thermal performance, these timber sash windows feature advanced double glazing with warm edge spacers as standard, achieving exceptional U-values from 1.3 W/m²K. For low-energy developments and sustainable building projects, we offer triple glazing options that deliver industry-leading U-values as low as 0.8 W/m²K, perfect for Passivhaus and eco-conscious builds.

Redwood or hardwood timber sash windows

Our sash windows are crafted using certified sustainably sourced engineered laminated timber, offering builders and developers a choice between premium redwood (Scots Pine) and hardwood (Dark Red Meranti). Both materials come with our comprehensive warranty package, ensuring long-term confidence for your projects.

The hardwood option features a distinctive open grain structure, delivering a sophisticated textured finish that’s particularly striking when stained. This makes it an excellent choice for heritage properties or high-end developments. Our redwood alternative provides a smoother finish, ideal for painted applications and contemporary builds.

Both timber options deliver:

• Exceptional dimensional stability
• Superior durability
• Consistent quality across bulk orders
• FSC® 100% Certified or 100% PEFC Certified Timber
• Extended warranty protection

Replicating original window features

Our sash windows collection offers comprehensive customisation options to meet the exacting requirements of your projects. Perfect for heritage properties and conservation areas, our windows feature an extensive range of traditional elements including slim frames, timber-only parting beads, and authentic staff beads/baton rods.

To ensure historical accuracy in your installations, our sash windows can be specified with:

• Deeper bottom sash rails
• Seven distinctive sash horn designs
• Travel stops for enhanced safety
• Multiple glazing bar options (16mm, 25mm, and 35mm)

Create classic window configurations to match any architectural period, including:

• Horizontal bar designs
• Cottage-style layouts
• Traditional Georgian patterns
• Marginal bar arrangements

Each sash window is manufactured to your precise specifications, allowing you to deliver authentic period aesthetics while maintaining modern performance standards that your clients expect.

Design a home to complement the classical era

At Bereco we offer unparalleled design versatility to meet your project specifications. Whether you’re working on a heritage renovation or a contemporary development, our manufacturing capabilities include curved head frames, curved on plan frames, curved sashes and specialist curved glazing. To achieve authentic period aesthetics, our sash windows can be customised with either dividing or applied bars in multiple width options, allowing precise replication of traditional Georgian and Victorian glazing patterns. This flexibility ensures our trade partners can deliver historically accurate windows whilst maintaining modern performance standards.

Certified noise reducing sash windows

Our sash windows stand apart as the UK’s only certified noise-reducing timber windows in their class, achieving exceptional sound reduction ratings of up to 42dB. Designed specifically for professionals working in urban developments and noise-sensitive areas, these premium sash windows feature specialist acoustic glazing that delivers outstanding sound insulation of up to 47dB.

For customers undertaking projects near busy roads, flight paths, or city centres, our acoustic sash windows provide the ideal solution for meeting both building regulations and client expectations. The enhanced sound reduction properties make these windows particularly suitable for:

• Commercial to residential conversions
• Urban regeneration projects
• High-end residential developments
• Listed building renovations requiring acoustic upgrades