Chimney Stack Repair in London & Kent

Sooty & Sweeps are trust chimney repair specialists in London.

Your chimney stack, which rises above your roof, is exposed to harsh weather and extreme temperatures, making it vulnerable to damage and deterioration. Chimney stacks are a distinctive feature of the London skylines, but without proper care they can cause major problems and even put lives at risk. If you are looking for chimney repair in London or Kent, you can rely on the  re-building service from the experts here at Sooty and Sweeps.

A chimney stack that’s no longer structurally sound should be urgently repaired or replaced to guard against falling debris, chimney fires, poisonous fumes and a host of other dangers. Accredited by Constructionline, HETAS and other industry bodies, we have the expertise to inspect your chimney, determine whether a partial or full chimney stack re-build is required and complete the project to the highest standards.

Whether your property features a ridge or eaves chimney, and whether the problems are minor or extensive, we’re ready to help. Our dedication and the excellent quality of our work mean we earn glowing reviews from customers.

The following issues are all examples of problems that can be resolved with our London and Kent chimney stack re-build service.

Leaning Chimney Stack

If your chimney stack leans it needs prompt attention, as it could be unstable and may collapse.

Leaning is an age-related chimney problem, exacerbated by British wet and windy weather. Burning fuels can result in salts building up in the chimney stack and attracting moisture, leading to expansion of the mortar joints. As the joints don’t all dry at the same rate (those on the side of the stack most often exposed to gusts of wind dry the quickest), some end up wider than others. That unevenness causes the stack to tilt. In addition, sulphates from flue gases combine with condensation, producing acids that weaken the stack.

To eliminate leaning, we can re-build your chimney stack, making it safe and stable. We can also install a flue liner to prevent sulphate attacks.

Chimney Stack Leaks

Have you noticed damp patches and stains on your walls, ceilings or chimney breast? A leaking chimney stack could be to blame.

When the masonry and mortar erode or the flashing (the metal at the base of the stack intended to keep moisture out) deteriorates, rainwater can easily penetrate the chimney. The condensation of flue gases is also linked to damp buildings. Major leaks can make roof timbers and ceilings collapse.

The key to stopping leaks is to re-build the chimney stack. Worn-out masonry, mortar and flashing can all be replaced by our experts. We can also install a protective flue liner and add cowls to the tops of chimney pots (which act as rain guards).

Eroded Brickwork, Stonework, Render and Pointing

Snow, ice, rain and wind all take a toll on your chimney stack’s masonry, render and mortar joints. Signs of erosion include cracks, fragmentation and hazardous loose elements. Some eroded stacks are so wobbly that they can be disassembled by hand.

If you have concerns about erosion, it’s sensible to make re-building your chimney stack a priority. Our team can replace damaged areas to create a sturdy, secure structure.

Broken Chimney Pots, Cowls and Flaunching

Chimney pots and cowls should be your stack’s crowning glory. However, frost and other bad weather conditions can leave them cracked and chipped. If the flaunching (the mortar around the base of the pots) is damaged too, they may even fall off your roof.

We can replace your broken chimney pots, cowls and flaunching during a chimney stack re-build. What’s more, we have the skills to ensure that the flaunching slopes at the correct angle to encourage rainwater to run off the stack, helping to prevent water damage.

Benefits of Our Service

  • Family business established for almost 40 years
  • Fully trained, accredited team
  • Competitive rates
  • Flexible working hours
  • Property left clean and tidy

Your chimney stack rebuild project is in safe hands with Sooty and Sweeps. Simply call us today on 0207 971 1242 / 01843 639 624 or contact us online to discuss your requirements.

London Chimney Repairs

We’re proud to offer our chimney stack re-building service across London and Kent.

Our offices are in Barnet (London) and Ramsgate (Kent). Full contact details are below.

London Office:
218 East Barnet Road,
Tel: 0207 971 1242
Kent Office:
8 Winterstoke Crescent,
CT11 8QA
Tel: 01843 639 624


What are the signs that my chimney stack needs repair?

Some common signs that indicate your chimney stack requires repair include:

    • Visible cracks or damage on the chimney stack’s exterior.
    • Loose or crumbling mortar joints between the bricks.
    • Water leaks or stains inside your home near the chimney.
    • Leaning or tilting chimney stack.
    • Presence of animals or nesting materials inside the chimney.

Can I repair the chimney stack myself, or should I hire a professional?

Chimney stack repair can be a complex task that requires expertise and knowledge of masonry work. It is recommended to hire a professional chimney repair company or a qualified mason who specialises in chimney repairs such as Sooty and Sweeps. We have the necessary skills, tools, and experience to assess the damage accurately and perform the repairs safely.

What are the common methods used for chimney stack repair?

The repair method employed for your chimney stack will depend on the extent of the damage. Some common repair methods include:

    • Tuckpointing: Replacing damaged mortar joints with fresh mortar.
    • Chimney crown repair or replacement: Fixing or replacing the concrete or masonry cap at the top of the chimney.
    • Chimney rebuilding: Partial or complete reconstruction of the chimney stack due to severe damage or structural issues.
    • Flue liner repair or replacement: Addressing cracks or damage in the flue liner.

How much does chimney stack repair cost?

The cost of chimney stack repair can vary depending on factors such as the extent of the damage, the materials needed, and the complexity of the repair. It is best to request an inspection from one of our advisors who can provide you with an accurate estimate based on your specific situation.

How often should I have my chimney stack inspected and maintained?

Regular chimney inspections and maintenance are crucial for identifying any potential issues before they become major problems. It is recommended to have your chimney stack inspected at least once a year, preferably before the start of the heating season. Additionally, routine maintenance tasks such as cleaning the chimney and removing debris should be performed regularly to ensure proper functioning and safety.

Remember, it’s important to consult with a professional chimney repair service for a thorough assessment and appropriate recommendations tailored to your specific chimney stack repair needs.