Chimney Repair in London

Looking for chimney repair in London? Compare free, no-obligation quotes from vetted local installers in your area. Typical prices in London sit around from £225 depending on unit count and specification.

Chimney work spans a huge range of jobs - from a £180 flaunching repair to a £3,000 full stack rebuild. The commonest calls are re-pointing eroded mortar, renewing the lead flashing where the stack meets the roof, replacing a cracked flaunching (the mortar bed at the top holding the pot in place), fitting a rain cap or bird guard, or a full rebuild when the brickwork above the roof line has failed. Chimney work is height access work - a decent quote always separates access cost from the actual repair.

Diagnosis matters more here than anywhere else on the roof. A leak that shows up in the chimney breast can come from four different failure points: perished lead flashing (usually the culprit), cracked flaunching letting water into the stack, failed mortar joints on the brickwork above the roof, or a broken pot. A good installer will always send photos before quoting - insist on it, because 'the whole chimney needs rebuilding' quotes from someone who hasn't been up there yet are the classic upsell.

Popular specs for chimney repair

Code 4 or Code 5 lead flashing renewal (soakers, apron, back gutter, side flashings), lime or NHL 3.5 mortar repointing for pre-1919 property or S:C 1:3 for post-1919, new sand:cement flaunching, new pot bedding, C-cowl or bird guard rain cap, scaffold or aluminium tower access, HETAS specialist for any flue works.