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Expert Sash Window Repair, Renovation and Replica Replacements Since 1999

Working Across North, East, West London & Across the UK

Transform your traditional sash windows with our design-registered upgrade system. Keep the original look whilst improving energy efficiency, reducing draughts, and eliminating rattling. If replacement windows are required, we also specialise in replicating original period sash window designs.

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27,000+ Sash Windows Renovated Since 1999

Using only Accoya™ – the most environmentally friendly timber on the planet

Approved to ensure installations comply with building regulations.

We can service sash windows within period properties in most areas of the South and North West of England.

With teams across London, the South East, the South Coast and Cumbria, we support homeowners with specialist sash window upgrades, repairs, and replacement joinery.

Check our locations, or share your postcode with the team and we’ll confirm coverage.

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Our Services

Upgrade your traditional sash windows with our design-registered system. Across North East and West London, we maintain the original character while improving energy performance, cutting draughts, and stopping rattling—without replacing your windows.

  • Upgrade Existing Sash Windows​
  • New Sash Windows​
  • Sash Repairs & Conservation
  • Other Services
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What Makes Us Different

Experienced Professionals

Established in 1999 with 25+ years focused on traditional sash windows.

Advanced Solutions

We carry exclusive, design-registered Solutions Brush Pile System™ that upgrades existing sash windows without changing their appearance.

Preserving Period Character​

No plastic parting beads used, to protect period aesthetics.

Trusted by Thousands

We’ve renovated 27,000+ sash windows since we founded.

Premium Materials as Standard

We use premium repair materials, including Accoya™ timber for softwood repairs and an epoxy repair system for long-lasting timber and sill restoration.

Engineered to Last

No double-sided taped extrusions for brush piles, for a more durable, long-lasting installation.

Design Your Windows
0% VAT rate until March 2027

On the Solutions Brush Pile System™

The installation of our Solutions Brush Pile System™ currently qualifies for 0% VAT, saving you money until March 2027.

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5-year guarantee for extra peace of mind

Customer Satisfaction Guaranteed

All upgrades using our Solutions Brush Pile System™ come with a five-year guarantee, covering the system and any associated repairs.

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Having Window issues?

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