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TJM Home Improvements
A brick chimney stack being repointed above a tiled roof

Chimney Repairs

Chimney repairs

Repointing, rebuilds, flashings, pots and cowls on exposed stacks.

Ask about chimney repairs

Tell us what is happening and we will come and look.

The work

Why chimneys leak

A stack is exposed on every face and above the roof line, so it weathers faster than any other brickwork on the house. Once the pointing has gone, water enters the joints, tracks down inside the stack, and appears as damp on a bedroom chimney breast.

The other half of the problem is where the stack meets the roof. Cement fillets crack, flashings lift, and back gutters silt up. Fixing the brickwork without fixing the lead, or the other way round, tends not to solve it.

  • Brickwork and lead are dealt with together, since a leak usually involves both.
  • Lime or soft mortar where the brick calls for it, not hard cement on soft London stock.
  • Redundant flues capped so they stay ventilated but dry.
  • Debris cleared from the roof and gutters afterwards.
Two brick chimney stacks above a tiled roof

Why TJM

Why customers choose us

  • A family-run business that has built up an enviable reputation across West London.
  • Over 25 years of experience on roofs, roofline, brickwork and the ground around the house.
  • High standards on every job, whatever its size, from a slipped tile to a full re-roof.
  • Affordable pricing, with the figure in writing before any work starts.
  • Our goal is to meet and exceed the expectations of every customer.
Chimney stacks along a terrace of West London houses

What's included

What chimney repairs covers

  • Repointing

    Raked out and repointed in a mortar suited to the brick, not a hard cement smear.

  • Partial rebuild

    The top courses taken down and rebuilt where the brick has spalled or the stack is leaning.

  • Flaunching

    The mortar cap around the pots renewed so it sheds water away from the joints.

  • Lead flashings

    Step, cover and apron flashings, and a back gutter where the stack sits mid-slope.

  • Pots and cowls

    Cracked pots replaced, and cowls or capping fitted on unused flues.

  • Removal

    Redundant stacks taken down and the roof made good where a chimney is no longer wanted.

The price

Chimney Repairs costs

What chimney repairs costs comes down to what you actually have, not a price list. Two jobs that sound identical can be an hour of work or a week of it, which is why we do not price roofing over the phone. We come and look, then put a figure in writing.

  • Stack height and how exposed it is.
  • Whether the work is repointing or a rebuild of the upper courses.
  • Access, which on a mid-terrace stack is often the biggest single cost.
  • Number of pots, and whether new flashings or a back gutter are needed.

Next step

Get a price for chimney repairs

Send the form or ring us. We will come and look at what you actually have, then put a figure in writing.

Our work

Read the reviews, then look at the jobs

What customers have said about the work, collected from the places they left it.

Read customer feedback straight from our MyBuilder profile, where every review is tied to a job we were hired for, and see finished work on Instagram as it comes off the scaffold.

How it works

How a chimney repairs job runs

  1. Step 01

    Inspect from the roof

    A stack cannot be assessed from the ground. We get up and look at the pointing, the flaunching and the lead.

  2. Step 02

    Explain the options

    Repointing, rebuild or removal, with the honest difference in cost and in outcome.

  3. Step 03

    Access

    Scaffold or a tower as appropriate, with the roof protected below.

  4. Step 04

    Repair and photograph

    Work completed, debris cleared out of the gutters, and photographs sent to you.

Questions

Chimney Repairs: common questions

The questions we get asked most often about this work. Anything else, ring and ask.

Still not sure? Ring and ask. It is usually quicker than typing it out, and you will speak to the person who would do the work.

There is damp on my chimney breast. Is that the stack?

Very often, yes. Water entering open joints or a cracked flaunching runs down inside the stack and shows on the breast in the room below. Repointing and a new flaunching is the usual fix.

Should I take the chimney down instead?

If the flues are redundant and you do not want a feature, removing the stack and making the roof good removes the maintenance for good. It costs more than repointing but nothing afterwards.

Do I need a cowl?

On an unused flue a capping cowl keeps rain and birds out while still letting the flue breathe, which stops damp and condensation inside it. On a working flue the cowl depends on what the appliance is.

Can a chimney be repaired in winter?

Pointing and flaunching need temperatures above freezing to cure, so a hard frost will hold the job up. Making a stack safe and fitting flashings can usually go ahead regardless.

Will it need a scaffold, or will a tower do?

It depends where the stack sits. One near the eaves can sometimes be reached from a tower, but a ridge stack or a mid-terrace stack almost always needs scaffold, and that is in the quote rather than added later.

Where we work

Roofers across West London

We work across the west London boroughs and the towns along the river. If you are just outside the list, ring and ask. We will tell you straight whether it is a journey we can make work.

  • Ealing
  • Northfields
  • Acton
  • Chiswick
  • Shepherds Bush
  • Fulham
  • Hounslow
  • Kew
  • Richmond
  • Twickenham
  • Hampton
  • Kingston
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