Sash Window Repair Cost Calculator London
Estimate the cost of repairing timber sash windows, draught proofing, broken cords, glazing repairs, and restoration work.
Select Window Type

Single Sash Window
Traditional single sash window repair and restoration.

Double Sash Window
Double sash window system with two connected windows.

Bay Window
Bay sash window restoration and repair estimate.
Select Window Condition
Good Condition
Window is generally working well with only minor issues such as slight draughts or stiffness.
Worn Condition
Window shows signs of wear including rattling, draughts, or difficulty opening and closing.
Poor Condition
Window has visible damage such as rot, loose joints, or significant operational problems.
Select Window Size
Small
Bathroom window or compact sash window size.
Standard
Typical sash window size commonly found in residential properties.
Large / Tall
Larger or taller than average sash window dimensions.
Select Services Required
Sash Cord Replacement
Draught Proofing
External Sill Repair
Timber Repairs
Single Glass Replacement
Double Glazed Unit Replacement
Ironmongery Installation
Full Refurbishment & Painting
How Many Windows Need Repair?
Your Estimated Repair Range
Your Selected Options
This estimate is intended as a general guide based on your selections. A more accurate quotation can be provided following a professional assessment of the windows.
Need an Accurate Sash Window Repair Quote?
Our online calculator provides an estimated price range. For a more accurate quotation, our specialists can assess your windows and recommend the most suitable repair solution.
Send Window Photos
Upload a few clear photographs of your sash windows, including any visible damage, draught issues, or glazing problems.
Receive Expert Advice
Our team will review the condition of your windows and advise whether repair or restoration is the best option.
Book a Free Assessment
Arrange a convenient survey appointment anywhere across London with our experienced restoration specialists.