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.
27,000+ Sash Windows Renovated Since 1999
Using only Accoya™ – the most environmentally friendly timber on the planet
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.
From sash window upgrades to repairs, conservation work, and new replica sash windows, our services across Cumbria and the Lake District National Park are designed to preserve period character while enhancing comfort, performance, and everyday usability.
Dermot, based in Cockermouth, is the founder of Sliding Sash Solutions and is dedicated to caring for the historic sash windows within the Lake District National Park and surrounding areas.
He is enthusiastic and passionate about his job and can visit at a time that suits you to provide you with a detailed window survey and consultation followed by a comprehensive specification and quotation.
Dermot has over thirty five years full-time experience in working with sash windows and so rest assured, your windows are in the most experienced hands.
Established in 1999 with 25+ years focused on traditional sash windows.
We carry exclusive, design-registered Solutions Brush Pile System™ that upgrades existing sash windows without changing their appearance.
No plastic parting beads used, to protect period aesthetics.
We’ve renovated 27,000+ sash windows since we founded.
We use premium repair materials, including Accoya™ timber for softwood repairs and an epoxy repair system for long-lasting timber and sill restoration.
No double-sided taped extrusions for brush piles, for a more durable, long-lasting installation.
The installation of our Solutions Brush Pile System™ currently qualifies for 0% VAT, saving you money until March 2027.
All upgrades using our Solutions Brush Pile System™ come with a five-year guarantee, covering the system and any associated repairs.
Get your free, no-obligation quote.
