Sash Window Draught Proofing in Cheltenham
Draught proofing a whole Cheltenham house of six to eight sashes takes one to three days and cuts window air leakage by up to 80%. We route silicone-treated brush pile into the meeting rail, beads and sill, stopping draughts, rattles and heat loss without altering a single original timber profile.

Request a Free Restoration Survey
Tell us about your windows and we will arrange a no-obligation survey, usually within five working days.
What perimeter sealing fixes
Perimeter sealing fixes cold air at the meeting rail, night-time rattle, dust ingress and traffic noise — the complaints we hear most in Montpellier, Lansdown and Leckhampton. Rooms feel warmer the same day, and a good brush-pile system lasts 10 to 15 years with basic maintenance.
- Cold air pouring in around the meeting rail on windy days
- Sashes that rattle in their runs through the night
- Curtains moving with the windows closed
- Dust and traffic noise from Cheltenham's busier roads
- Heating that never quite holds temperature in the front rooms
- Sashes stiff or over-loose from decades of paint build-up
Our draught-proofing process
Four stages: survey and measure, remove and de-paint, rout and seal, then refit and rebalance. Each sash is out of its box frame for only a few hours, and replacement beads are cut from conservation-grade timber such as Accoya or Sapele where originals are damaged.
Step 1
Survey and measure
We check each window's gaps, mechanism and paint condition and price the work sash by sash.
Step 2
Remove and de-paint
Sashes are taken out and paint build-up eased from the runs so they slide freely again.
Step 3
Rout and seal
A narrow groove is machined into the sash edges and meeting rail, and brush pile is set flush.
Step 4
Refit and rebalance
New parting and staff beads carrying integral pile are fitted, cords checked and the sash rebalanced.
Why our seals last
- Silicone-treated brush pile sized to each individual gap, not a one-size strip
- Routed into the timber rather than stuck on the face — nothing peels off
- Beads replaced in conservation-grade Accoya or Sapele, matched to the original profiles
- Sashes rebalanced so the window still opens with one hand
- Fully reversible and suitable for listed buildings
- 10-year guarantee on the seal system
We work throughout Montpellier, Pittville, Charlton Kings, Leckhampton, Lansdown and the wider Cheltenham conservation areas. See the full range of sash window repairs in Cheltenham.
Sash Window Draught Proofing: What It Costs and How It Works
A detailed cost and process guide: how brush-pile sealing works, what affects the price, and how much you can save on heating in a Cheltenham period home.
Read the guide