Sash Window Draught Proofing

Draught Proofing & Restoring Timber Sash Windows

Sash window draught proofing & restoration service to fix the common problems associated with heritage timber sash windows. Sash seals stop rattles & draughts as well as reducing noise & dust.

Sash Window Draught Sealing & Restoration is our core sash window repair & recondition service and should be considered an essential upgrade for all existing sliding sash windows. 

Draught proofing sash windows. Sash window restoration.
Sash window restoration & draught proofing

Draught Proofing Sash Windows will Improve functionality and energy efficiency at a fraction of the cost of replacement period windows. Fitted as part of our sash window restoration service that includes an overhaul of the whole box sash frame and brings new life to old timber sash windows.  

Installing effective draught seals at the same time as overhauling your existing sash windows is the best value for money service we can offer.  For many home owners our Draught Seal & Restore service provides a significant, rewarding home improvement without the added expense of replacing glass.   A wide range of timber window repairs can also be undertaken in conjunction with this service.

Less than a quarter of the heat lost through a typical traditional window escapes by conduction through the glass.  The rest is air leakage as draughts.

All of our more advanced window solutions include this service as their foundations. 

Sash Weather & Draft Seals.

Sash Seal benefits include:

  • Primarily they seal the gaps where draughts enter, thereby improving the comfort & energy efficiency of your home & saving you money on energy bills.
  • Low friction draught seals enable free movement of the sash, yet are tight enough to eliminate intrusive rattles.
  • Air borne noise, dust and other pollutants that are suspended within draughts are also greatly reduced.

“ …one of the best and least intrusive ways of achieving improved performance from windows in old buildings. This will considerably reduce heating bills and energy use… reduce noise and dust ingress… Most importantly, draught proofing does not damage the visual aesthetics of an old building.”

English Heritage Framing Opinions Campaign

Sash Window Draught Proofing Service Includes:

  • Restoration of the inner box surface
  • Renewal of the sash cords with modern ‘everlasting’ cord.
  • Balance and adjustment of the weighting mechanism, to ensure ease of operation.
  • Replacement wooden beads fitted with integral draught seals
  • Machining of the sashes to install integral draught seals
  • Realignment of the sashes, as necessary
  • Repair loose sash joints
  • Servicing or replacement of the ironmongery

Improving Energy Efficiency

Sealing draughts in your home will return significant savings in heating and cooling costs, as up to 25% of heat is lost via air leakage in a typical home.

Traditional double-hung sash windows are not regarded as being very energy efficient.  The sliding sash window frames have inherent gaps that allow the sashes to slide and the timber frames can also warp over time, creating larger gaps where air leakage and air infiltration will occur.  

Draught-stripping your existing period sash windows can reduce the draughts by almost 90%, therefore significantly reducing the cooling or heating requirement needed for the room.  Draughts make air cooling and heating systems work harder and make occupants feel uncomfortable, often adjusting room thermostats to compensate.  

Whilst heat does pass through the glass itself, less than a quarter of the heat transfer through a typical sash window is by conduction, the rest is by air infiltration – draughts.   Heavy curtains or close-fitting roller blinds can help cut the amount of heat transfer through glass by more than 30%. 

“Draught-proofing is one of the most cost effective and least intrusive ways of improving the comfort of occupants and reducing energy used for heating with little or no change to a building’s appearance.” Historic England


Unaltered Heritage Appearance

We understand the charm of traditional wooden windows and all of our work is designed to be as authentic as possible.

Heritage aproved draught seals

Our draught seals are machined into the timber components to become an integral, practically invisible part of the window. Our Draught Seal & Restore Service is ideal for conservation areas and listed buildings.

We have been using the same top quality British made draught seals for over 20 years.  Brush draught seals are the best option for long life in a sliding sash window.

Range of Security & Window Furniture

Windows are a favourite entry point for burglars

Various catches effectively bring the sashes into a locked position, however the screws holding these in place are small and these catches should not be considered an effective security measure. We have a range of sash window security options available.  We also supply a wide range of sash window furniture, available in variety of finishes.

Security Stops For Timber Sash Windows. Double Hung.