Chimney Repair in London
London's Victorian and Edwardian chimneys take a battering from decades of weather. We repoint, rebuild and reflash chimney stacks across the capital — keeping them safe, watertight and standing for decades more.
What's Included in Our Chimney Repair Service
A failing chimney is both a leak risk and a safety risk — loose masonry at height is no joke. We handle everything from a simple repoint to a full stack rebuild, and we are honest about which one you actually need.
Chimney Repointing
Crumbling mortar raked out and repointed in a proper lime or sand-and-cement mix. The single most common chimney repair we do — and often all the stack needs.
Lead Flashing Replacement
The number one cause of chimney leaks is failed flashing, not the bricks. We cut out old flashing and fit new code-4 lead, dressed and sealed correctly.
Partial & Full Rebuilds
When bricks are spalled and leaning, repointing is a false economy. We rebuild the stack in matching brick, with new flaunching and a lead tray if needed.
Pots, Cowls & Caps
Replacement chimney pots, anti-downdraught cowls, bird guards and ventilated caps for disused flues — stopping rain, birds and squirrels getting in.
Flaunching Renewal
The mortar bed around the pot tops cracks first and lets water straight down the flue. We renew flaunching as standard with every stack job.
Stack Removal & Capping
If a chimney is redundant, we can reduce or remove the stack and seal the roof properly. See our honest breakdown of chimney stack removal vs repair.
Our Chimney Repair Process
1. Free inspection
We inspect the stack up close — from ladders or scaffold where needed — checking mortar, brickwork, flashing, flaunching and pots. Most chimney leaks are diagnosed in one visit.
2. Fixed written quote
One clear price in writing, including scaffold if the job needs it. If repointing will genuinely fix it, we say so — we do not sell rebuilds to people who need repointing.
3. Safe, tidy completion
We work safely at height, keep the garden and pavement clear below, and leave the stack weatherproof with our full workmanship guarantee.
Signs Your Chimney Needs Repair
Chimneys fail slowly, then suddenly. Watch for these:
- Mortar crumbling or missing between the bricks at the stack top
- Damp patches on the chimney breast inside the house or loft
- Water stains on the ceiling around the chimney area
- Bricks that are cracked, spalling or leaning
- Bits of mortar or brick in the gutter or garden below
- A smoky smell or smoke drifting into the room from a working fire
Useful reading: Chimney Flashing Leaks Explained and Lead Flashing Replacement Costs.
Typical Chimney Repair Costs in London
Realistic 2026 London price bands — your fixed written quote follows a free inspection and includes any scaffold needed.
Repointing: £500–£1,000
The most common job: raking out and repointing a typical stack. Our chimney repointing cost guide breaks this down further.
Lead Flashing: £300–£600
Replacing the lead around the stack base — the fix for most chimney leaks. Often combined with repointing for one visit.
Rebuilds: £1,000–£6,000
Partial rebuilds from around £1,000; full stack rebuilds in matching brick typically £2,500–£6,000 depending on height and access.
Related Services & Areas
Chimney work often goes hand in hand with a roof repair — leaking flashing soaks the surrounding roof covering too — and storm-damaged stacks fall under our storm damage repair service, open 24 hours. If the whole roof is due, see our roof installation service. From our Camden base we cover Hampstead, Highgate, Camden Town and all of London.
Why Choose Victoria for Chimney Work
Family-run since 1982
We have repointed and rebuilt London's chimneys for over 40 years — we know Victorian brickwork.
5.0 from 338 Google reviews
Hundreds of five-star reviews from London homeowners for honest, tidy chimney work.
We fix leaks, not sell rebuilds
Most chimney leaks are flashing or pointing failures. We diagnose honestly and quote the repair that actually solves it.
Open 24 hours
Loose masonry after a storm is dangerous. Call 07848 256099 any time for an urgent make-safe.
Chimney Repair FAQs
Chimney repointing in London typically costs £500–£1,000 in 2026, depending on the stack's size and access. If safe access needs scaffold, expect that to add roughly £600–£1,200. We include any scaffold in your fixed written quote — never as a surprise extra.
If the bricks are sound and only the mortar has weathered, repointing is enough and will add decades of life. If bricks are spalled, cracked or the stack is leaning, repointing is a false economy — a rebuild is the right fix. We inspect up close and tell you honestly which one applies to your stack.
In most cases the culprit is failed lead flashing where the stack meets the roof, not the bricks themselves. Cracked flaunching at the stack top and porous mortar are the other usual suspects. Our inspection pinpoints the exact entry point before quoting any work.
Yes — a redundant stack can be reduced below the roofline or removed entirely, with the roof sealed and made watertight. Bear in mind it can affect the property's character and value, and party-wall or planning considerations can apply. Our removal vs repair guide walks through the decision.