A chimney flashing leak or water penetration can lead to costly structural damage if left untreated. At Knights Roofing, we specialise in professional chimney leaking repair, diagnosing and resolving issues before they escalate.
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There are several potential culprits behind a leaking chimney:
The most common cause of a chimney flashing leak, this metal barrier seals the gap between your chimney stack and roof. If it’s corroded, loose, or poorly fitted, water can seep directly into your home.
Weathered mortar and deteriorated flaunching (the top cement layer holding chimney pots) can allow water ingress.
Without a chimney cap, rainwater, snow, and debris can enter freely — leading to internal moisture and damage.
Unsealed bricks can absorb water like a sponge, especially in older homes.
At Knights Roofing, we repair or replace flashing using high-quality lead, aluminium, or copper to ensure a watertight seal. Our chimney specialists carry out:
Costs depend on chimney height, extent of damage, and whether scaffolding is required.
Prevention is cheaper than repair. Here’s how:
Get yearly chimney inspections
Whether it’s a minor flashing issue or extensive chimney water damage, our chimney leaking repair experts in Southwest London are here to help.
Don’t wait until it’s too late — contact us today for a free quote or inspection.
