Roof Leak Repairs London

Flat roofs are one of the most common sources of leaks in London — particularly on rear extensions, dormers, garages and porches. Felt roofs typically last 10–20 years, GRP fibreglass 25+ years, and EPDM rubber 25–30 years, but exposure, ponding water and poor original detailing can dramatically shorten that lifespan.

Our roofers will lift covers, inspect the deck, check the membrane for splits, blisters and pinholes, examine seams and upstands, and test outlet drains. Wherever possible we make a permanent localised repair using compatible materials. Where the membrane is genuinely at the end of its life we will quote you transparently for a re-cover and explain your options — felt, GRP or EPDM — so you can make an informed choice. See our flat roofing London and GRP roofs London pages for more on full installations.

The classic London pitched roof — clay or concrete tiles, slate, ridge and hip detailing, valley gutters — has many points where a leak can develop. Slipped or cracked tiles, perished underlay, failed mortar bedding on ridges and hips, and worn lead valleys are all routine finds on inspection.

We carry stocks of tiles, slates, ridge mortar, dry-fix systems and replacement lead to put right the great majority of repairs in a single visit. Where matching antique tiles is required we will source the closest match and salvage where possible to keep the roof looking right. For wider-scope works see roof repairs London.

Chimneys are one of the most leak-prone features of a London roof. Failed lead flashings, cracked pots, eroded haunching and crumbling pointing are all common — and they often produce damp patches in upstairs rooms that owners initially mistake for plumbing leaks.

Our team are experienced at re-leading abutments, repointing stacks, replacing pots, re-bedding flaunching and fitting new lead trays. For more on the full chimney and high-level refurbishment service, see chimney & roof refurbishment in London.

Damp patches on ceilings and walls are not always coming from the obvious place directly above. Water can enter the roof in one location and then track several metres along rafters, joists or behind plasterboard before showing. That is why a proper inspection — not a guess from inside the room — is so important.

We use moisture meters, thermal patterns, timber probes, internal/external visual inspection and (when needed) controlled water testing to find the actual entry point. Once located, we explain the problem in plain English, talk you through the repair options, and give you a written quote on the spot.

When a roof is actively leaking — water dripping into the property, ceiling bulging, electrics affected by water — it needs urgent attention. We aim to respond to emergency roof leak calls in London within 24 hours, and often the same working day depending on traffic and the severity of the leak.

On an emergency visit we will make the property safe, contain the leak with a temporary repair where needed (tarpaulin, sealant, tile reinstatement), and book you in for a permanent repair as soon as possible. Call us on 01932 950 995 (Surrey) or 020 7118 0095 (London) for urgent attendance.