Chimney Stacks, Repointing, Leadwork and Repairs

At Smart Roofing London, we specialize in professional chimney stack repairs, flashing, leadwork, and repointing services across London. 

Our certified team is always near you to provide reliable, safe, transparent, efficient, and affordable solutions to maintain the structural integrity and safety of your chimney, whether in older properties or during renovation. 

We understand that a damaged chimney stack isn’t just a cosmetic concern—it’s a serious safety hazard that can lead to structural damage, water ingress, and even carbon monoxide risks if left unaddressed. 

With over 25 years of experience and a commitment to safety and quality, our certified chimney specialists provide comprehensive repair, repointing, and leadwork services that restore your chimney’s structural integrity and keep your home safe from fire hazards and weather damage.

Our team replaces damaged flaunching with high-quality sand-cement mortar to ensure a watertight seal. 

We also address crumbling mortar joints, replace old pointing between bricks, and renew lead flashings and soakers (step flashing, back trays, and gutter aprons) to divert water away from the stack.

Our recent roofing project in Mill Hill, Willesden, Neasden, Edgware, and Hackney showcases our craftsmanship, commitment to detail, and ability to handle complex roofing and chimney works to the highest standard.

Ready to protect your home? Contact us today for a free inspection and no-obligation quote.

Expert and Affordable Chimney Stack Repairs Near You

If you’re experiencing any issues with your chimney, Smart Roofing London is always here to help quickly. We offer professional and affordable chimney repairs for both traditional and modern properties.

Our certified chimney specialists ensure your chimney remains safe and functional by fixing cracks, damaged stacks, realigning bricks, and reinforcing structural elements. 

We also prevent water leaks and install chimney caps to stop debris, birds, and animals from entering your flue.

Our chimney flashing repair services include installing premium lead soakers, back gutters, and front aprons to create watertight seals. We repair or replace damaged flaunching—the cement seal around your chimney pot—preventing rainwater from seeping into the brickwork.

Cracked or loose chimney pots can cause severe interior damage, so we re-seat existing pots, install new ones, and ensure proper flaunching to keep your chimney secure and weatherproof.

Missing or damaged chimney caps leave your flue exposed. Still, our expertly installed caps and cowls protect while maintaining ventilation. 

Recently, we repaired a tiled roof and chimney flashing in Edgware, ensuring a watertight, long-lasting result that met both safety and aesthetic standards.

Book a free chimney inspection today and let Smart Roofing London solve your chimney problems before they get worse, keeping your home safe, functional, and weatherproof.

Before and after chimney stack repair by Smart Roofing London showcasing restored brickwork and waterproof finish.
Before and after leadwork and flashing repair on a London chimney stack by Smart Roofing London ensuring watertight protection.

Chimney Stacks Repointing, Flashing & Leadwork Services

Chimney repointing and leadwork are essential for maintaining your chimney stack’s durability and structural integrity. Over time, weather exposure can erode mortar joints, weakening the stack and allowing water to penetrate, causing costly damage. 

Our skilled masons carefully remove damaged mortar and replace it with high-quality chimney mortar that matches your property’s appearance, restoring both function and aesthetic appeal.

Proper chimney leadwork prevents leaks and protects your roof from water damage. 

We specialize in installing and repairing lead flashing, including lead soakers, step flashings, and back flashings, sealing the junction between your chimney and roof while ensuring compliance with building regulations.

Our chimney repointing service strengthens mortar joints to prevent moisture ingress, while our flashing repair keeps water safely away. 

We also install chimney caps, cowls, and liners for extra protection. Caps prevent rain, debris, and birds from entering the flue. At the same time, liners improve draft and prevent dangerous gases, such as carbon monoxide, from entering your home.

Combining repointing, leadwork, and capping provides a fully waterproof, weatherproof chimney stack. 

For complete peace of mind, pair these with our chimney cleaning services or chimney removal if needed. Serving London homeowners, we help prevent expensive rebuilds and maintain durable, leak-free chimneys.

From lead roofing in Hackney to tiled roofing in Neasden, every project is completed with precision, compliance, and long-term protection in mind.

Book a free consultation today and let our certified team restore your chimney’s safety, durability, and efficiency.

Chimney repointing and lead flashing repair in London by Smart Roofing London ensuring long-lasting, durable, watertight protection.
Professional chimney flashing repair in London by Smart Roofing London for leak prevention and long-lasting protection.

Common Chimney Stack Issues We Fix

We specialize in fixing all standard chimney issues that harm your home’s safety:

  • Cracks, leaks, and structural instability: Repairing a damaged chimney to keep water out and maintain structural integrity, ensuring your home’s safety and longevity.
  • Weather and age damage: Comprehensive inspections, repointing, and brick replacement to extend chimney lifespan.
  • Chimney fires: Cleaning and repair services to remove soot and debris, reducing fire hazards.
  • Faulty chimney flashing & leadwork: Expert repairs and replacements to prevent leaks and protect your roof for decades.
  • Leaky flaunching & mortar erosion: Sealing mortar joints and rebuilding crowns to prevent water damage.
  • Damaged or leaning stacks: Rebuilding or removal of severely damaged stacks.
  • Blocked flues & smoke issues: Clearing obstructions and inspecting liners to ensure safe ventilation.
  • Missing or faulty caps/ cowls: Installing protective chimney caps to block rain, debris, and pests.
  • Chimney liners: Replacing worn liners to improve draft and prevent carbon monoxide risks.
  • Chimney removal: Removal of obsolete or aged chimneys safely without compromising the roof structure.

Call Smart Roofing London today—we’re available 24/7 across London.

Emergency 24/7 Chimney Repair Services across London

At Smart Roofing London, we know chimney problems can strike anytime—especially after storms or during winter.

From chimney fires, leaks, blockages, and structural failures to carbon monoxide hazards, our certified team provides 24/7 emergency chimney repair in London with response times often under 60 minutes.

We offer free, no-obligation inspections and consultations, quick on-site assessments, and temporary fixes like flashing patches or tarps to stop leaks immediately.

Don’t risk interior damage or safety hazards—call us anytime, day or night, for fast, reliable, and professional emergency chimney repair services that protect your home and family.

Our Process

1. Chimney Inspection
 
  • Safety First: 

    Before any work begins, the chimney should be thoroughly inspected to identify any areas of perished or missing mortar. 

  • Assess Damage: 
    Check the mortar joints for crumbling and gaps, and look for damaged or loose lead flashing. 
2. Repointing Process
 
  • Rake Out Mortar: 

    Carefully remove old, damaged mortar from the joints to a consistent depth of approximately 20-25mm using a suitable tool, like a chisel and hammer, being careful not to damage the brick edges. 

  • Clean Joints: 

    Brush out any remaining mortar dust and debris from the joints. 

  • Dampen Surfaces: 

    Lightly wet the brick and joints to prevent the new mortar from drying out too quickly. 

  • Mix New Mortar: 

    Mix a new mortar, typically a sand and cement mix, using a strong 3:1 or 4:1 sand-to-cement ratio for exposed chimneys. 

  • Apply New Mortar: 

    Trowel the new, sticky mortar firmly into the cleaned joints using a tuck pointer or finger trowel. 

  • Finish the Surface: 

    Smooth the new mortar to the desired pointing style, such as flush, bucket handle, or weather struck, depending on the location and desired aesthetic. 

  • Cure the Mortar: 
    Cover the finished work with damp hessian to allow the mortar to cure slowly and prevent rapid drying. 
3. Leadwork Repairs
 
  • Inspect Flashing: 

    Examine the lead flashing where the chimney meets the roof for any damage or gaps, as this is a common entry point for water. 

  • Repair or Replace: 

    Repair any holes or replace the damaged flashing to create a watertight barrier. 

  • Install Lead Trays: 
    For added protection, a lead tray can be installed within the stack itself to stop moisture from tracking down the chimney. 
4. Repairs and Safety
 
  • Restore Integrity: 

    Proper repointing and leadwork will restore the chimney’s structural integrity, prevent water damage, and ensure the security of the chimney. 

  • When to Get Professional Help: 

    For more extensive repairs, unstable chimneys, or complex leadwork, it is essential to hire a qualified professional. 

  • Consider Scaffolding: 
    For larger or more complex jobs, scaffolding may be necessary to provide safe and stable access for the workers. 

Areas We Proudly Serve across London

Why Choose Smart Roofing London?

When it comes to chimney repair, you need a company you can trust. 

Here’s why Clients trust Smart Roofing London:

  • Fully certified and insured for the peace of mind knowing your property is in safe hands.
  • Expertise in chimney stack repairs, flashing, leadworks, and repointing, considering traditional or modern properties, with 25 years of experience.
  • 24/7 emergency services anywhere across London. 
  • Transparent pricing and fair and honest pricing with no hidden costs.
  • 100% safety and customer satisfaction.
  • Detailed written free quotes, and keep informed of everything throughout every project.

Ready to fix your chimney and keep your property safe? Contact us today for a free, no-obligation quote or consultation.

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FAQ's

1. How do I know if my chimney is safe to use?

A professional chimney inspection can assess the condition of your chimney and identify any potential hazards, ensuring it’s safe for use. We offer free initial professional chimney inspection across London.

The cost may vary depending on the extent of damage, access, and materials required. We offer an initial free Site survey. After inspecting your chimney, we give you a fixed, transparent quote. 

We recommend cleaning chimneys at least once a year. However, if you burn wood frequently, especially green or softwood, more frequent cleanings may be necessary.

4. Can I use my fireplace if the chimney is damaged?

It’s not advisable to use your fireplace if the chimney is damaged. Doing so can pose serious safety risks, including fire hazards and carbon monoxide poisoning.

Regular inspections, timely repointing, leadwork maintenance, and chimney cleaning help to prevent leaks, blockages, and structural damage, extending your chimney stack’s life.

Signs include cracked or crumbling mortar, water leaks around the stack, damaged flashing, or rusted lead. Our free chimney inspection identifies these issues and recommends repointing, leadwork, or other repair services.

Call us today!

Keep Your Family Safe – Don’t Wait for Roof Damage
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