Overview
Seals are push-fit rubber or TPE profiles that sit in a groove around the door and frame. Replacement is straightforward but the corners must be mitred cleanly or leaks return within weeks.
Symptoms
- Any draught, rattle or whistle.
- Visible perished or torn seal.
Common causes
- UV, salt air, age.
When to call a professional
- Coastal properties: heavier storm-rated seals worth having a pro fit.
Prevention
- Silicone-treat seals twice yearly.