Chimney Work on Older East London Homes
Most chimney stacks in Tower Hamlets have been up for well over a century, and they take the worst of the weather. Sitting above the ridge line, a stack gets wind, rain and frost from every direction, and the mortar holding it together slowly gives up. When it does, water gets in — and a tired chimney can quietly become an unsafe one.
We repair, repoint and rebuild chimneys across E1, E2, E3 and E14 — many of them on Victorian terraces in Bethnal Green, Bow and Stepney where the stacks are original and have never been properly looked at.
Chimney Repairs We Carry Out
- Repointing — we rake out the failed mortar joints and repoint with a mortar mix that suits old London stock brick. This matters: a hard modern cement mortar is stronger than the soft brick around it, so the brick faces blow apart instead of the mortar weathering as it should.
- Flaunching repairs — the flaunching is the sloped mortar bed on top of the stack that holds the pots in place. Once it cracks, water sits in it and the pots work loose. We cut the failed flaunching off and re-lay it.
- Pots and cowls — cracked or broken pots replaced, and unused chimneys capped with a vented cap or cowl that keeps the rain out while letting air through, so the flue doesn't sweat and cause damp inside the house.
- Lead flashing around the stack — one of the most common leak sources we see. The water often shows up in a room well below, far from the chimney itself, so it gets misdiagnosed for years.
- Partial rebuilds — where frost and failed mortar have left the upper courses loose, we take them down to sound brickwork and rebuild, reusing the original bricks where we can.
- Leaning or unsafe stacks — if your stack is moving, leaning or dropping debris, treat it as urgent. We'll make it safe quickly — call us and ask for an emergency repair.
How We Work
Chimney work needs proper access — usually a roof ladder and tower, or a small scaffold around the stack, depending on the roof. We photograph the stack before we start and again when we've finished, so you can see exactly what was done without climbing up there yourself. As with all our roof repairs, you get a written quote before any work begins, there's no call-out charge, and our workmanship is guaranteed in writing.
An Unused Chimney Still Needs Looking After
Plenty of homes in E1, E2 and E3 have chimneys that haven't seen a fire in fifty years — but the stack is still standing in the rain, slowly weathering, directly above your bedroom. Capping the pots, keeping the pointing sound and checking the flashing every few years costs little and heads off the expensive jobs: rebuilds, ceiling repairs and rotten timbers.
If you'd rather not think about it at all, our roof maintenance and inspection visits include the chimney as standard, with a photo report so you know exactly what state it's in.
Chimney Repair & Repointing Costs
With chimneys, access is usually the biggest line on the quote — a stack that needs its own scaffold tower costs more to reach than one we can work on from an existing scaffold or a safe roof access point. The masonry work itself is often the smaller half of the bill.
As a rough guide, repointing a typical terraced stack usually lands somewhere around £400–£1,200 including access, with partial rebuilds priced beyond that depending on how many courses need taking down. We photograph the stack, explain what's actually wrong and give you a fixed written price before any work starts. And if your "roof leak" is really a chimney problem — they very often are — see our roof leak repairs.