At Sash Restoration Belfast we provide a comprehensive sash restoration service, upgrading the thermal and acoustic performance of a building through in-depth repairs, draught proofing systems and restoration. With the support of our joinery and glazing workshops, we are equipped to manufacture any necessary components to rebuild your timber sash windows to their original detailing.

Problems commonly encountered include water ingress, decayed or painted shut components, rotting sills (particularly on south and west elevations), draughts and damaged glass. These sash windows have often been neglected for long periods, and show signs of poor quality repair in the past, with filler being applied directly to damp and decayed timber, then painted over.

As standard, we will quote for refurbishment, in-depth repair and installing draught proofing systems. This will go a long way in bringing your single glazed window to properly function and if carefully painted, should give many more years of service. At Sash Restoration Belfast we provide the following sash restoration services across Belfast:

  • Remove beading and carefully remove top and bottom sash windows​

  • Assess condition of sill, box frame and external pointing

  • Re-balance sash weights to ensure smooth operation of both top and bottom sash windows

  • Assess condition of top and bottom sash window

  • Renovate top and bottom sash windows, scrape off excess paint and repair putty damage where needed

  • Replace old pulleys with modern brass pulleys, incorporating a sealed ball bearing unit, resulting in smooth and positive action in operation

  • Undercoat all exposed woodwork and caulk beading leaving the window ready for the decorator 

  • Fit new centre catch, sash-lifts and window locks as directed by the customer

Please see below a selection of sash windows we have fully restored: 

Contact us today to discuss to points listed above with one of our helpful and friendly team. They are always on hand to answer any questions you may have and provide honest and impartial advice.​ Or for further information please contact us at: or call our head office on: 0207-1646305.

Sash Restoration Belfast Team




Sash Restoration Belfast

Lisbunny Rd


Northern Ireland

BT47 4JF

Tel: 0207-1646305

Mob: 07913372092



Sash Restoration Edinburgh

Kilburn Wood Drive



EH25 9AA

Tel:    0207-1646305

Mob: 07399779872

Sash Restoration London

Ripplevale Grove 



N1 1HT

Tel:    0207-6093012

Mob: 07913372092

Sash Restoration Melbourne

805/220 Collins Street




Tel:    +614335972542

Mob: +614335972542