How External Sealants Protect Your Home from the Elements

In the UK, wind, rain and frost take a toll on our homes. External sealants, used around windows, doors and expansion joints, form a critical barrier that keeps water, drafts and pests out.

Without this protection, water ingress can cause damp, rot and structural damage that costs thousands to fix.

Why External Sealants Are Vital

• Weatherproofing - Stops rain and wind from entering gaps.

• Energy Efficiency - Prevents heat loss, helping to lower bills.

• Structural Protection - Stops moisture from damaging masonry, timber and insulation.

• Pest Prevention - Seals small entry points around frames and vents.

Common Areas That Require External Sealants

• Around window and door frames.

• Expansion joints in brickwork or cladding.

• Wall-to-roof junctions.

• Service entry points (pipes, vents, cables).

Signs Your External Sealants Need Replacing

• Cracks or gaps in the bead.

• Sealant pulling away from surfaces.

• Water stains or damp patches inside your home.

• Noticeable drafts near doors or windows.

The Risks of Ignoring Failed External Sealants

• Damp and Mould - From water ingress through gaps.

• Rot and Decay - In timber frames and surrounding materials.

• Higher Bills - From heat escaping in colder months.

Maintenance Tips for External Sealants

• Inspect annually, ideally before winter.

• Address small gaps before they worsen.

• Use professional-grade sealants for maximum longevity.

External sealants are your home’s first defence against the elements. Replacing them when needed helps protect your property value, keep energy bills down and prevent costly repairs.