​Introduction

London’s architectural heritage is adorned with charming chimneys that not only add character but also serve functional purposes. However, over time, these structures may require maintenance or removal due to wear, structural issues, or modern living requirements. Cornerstone Brickwork, a leading specialist in London’s brickwork services, offers comprehensive solutions for chimney repointing, repairs, and removal.​

Understanding Chimney Repointing in London

What Is Chimney Repointing?

Chimney repointing involves renewing the external part of mortar joints in masonry construction. Over time, weather conditions and pollution can erode the mortar, leading to structural weaknesses. Repointing restores the chimney’s integrity, preventing water ingress and potential collapse.​

Signs Your Chimney Needs Repointing

• Visible cracks or gaps in mortar joints
• Loose or missing bricks
• Damp patches on interior walls near the chimney
• Leaning or uneven chimney structure​

The Chimney Repointing Process

1. Inspection: Assessing the extent of mortar damage.
2. Preparation: Removing deteriorated mortar to a suitable depth.
3. Repointing: Applying new mortar, matching the original in composition and appearance.
4. Finishing: Cleaning the area and ensuring a neat finish.​

Benefits of Chimney Repointing

• Enhances structural stability
• Prevents water penetration and associated damages
• Extends the lifespan of the chimney
• Maintains the aesthetic appeal of the property​

Chimney Repair Services in London

Common Chimney Repairs

• Replacing damaged flue liners
• Repairing or replacing chimney crowns and caps
• Fixing flashing to prevent leaks
• Addressing brickwork deterioration​

Cornerstone Brickwork’s Approach to Chimney Repairs

Cornerstone Brickwork employs certified professionals who utilize modern equipment while adhering to safety standards. Their services comply with local building regulations, ensuring quality and reliability.​

Chimney Breast Removal in London Homes

What Is Chimney Breast Removal?

Chimney breast removal involves eliminating the protruding part of a chimney within a room, often to create more space or for aesthetic reasons.​

Legal Considerations in London

Removing a chimney breast may require:​

• Planning Permission: Not always necessary, but it’s essential to check with local authorities.
• Building Regulations Approval: Mandatory to ensure structural integrity.
• Party Wall Agreement: If the chimney is shared with an adjoining property.​

The Removal Process

1. Structural Assessment: Determining if the chimney breast supports any part of the building.
2. Support Installation: Adding beams or other supports if necessary.
3. Demolition: Carefully removing the chimney breast.
4. Making Good: Repairing walls, floors, and ceilings affected by the removal.​

Risks & Precautions

• Potential structural issues if not properly supported
• Possible disputes with neighbors over shared structures
• Unforeseen costs due to hidden complications​

Full Chimney Removal: When and Why

Reasons for Full Chimney Removal

• Redundant chimneys no longer in use
• Structural instability posing safety risks
• Desire for increased interior space
• Modernizing the property’s appearance​

Cornerstone Brickwork’s Safe Removal Approach

The company ensures:​

• Safety: Using scaffolding and protective measures.
• Efficiency: Minimizing disruption to the household.
• Compliance: Adhering to all legal and safety regulations.
• Waste Management: Proper disposal and recycling of materials.​

Chimney Removal Cost Breakdown in London

Average Costs in 2025

• Chimney Repointing: £400–£1,200
• Ground Floor Chimney Breast Removal: £1,500–£1,750
• First Floor Chimney Breast Removal: £1,750–£2,000
• Entire Chimney Breast Removal (without stack): £2,200–£2,400
• Full Chimney Removal (breast and stack): £3,000–£3,500

Factors Affecting Cost

• Property size and type
• Chimney location and accessibility
• Structural support requirements
• Waste disposal and finishing work​

Cornerstone Brickwork’s Value Proposition

The company offers transparent pricing with no hidden fees, ensuring clients receive quality service within budget.​

Choosing the Right Contractor for Chimney Services

What to Look for in a Chimney Specialist

• Proven experience and positive reviews
• Proper certifications and insurance
• Comprehensive service offerings
• Clear and detailed quotations​

Why Cornerstone Brickwork Stands Out

With a reputation for excellence in Greater London, Cornerstone Brickwork combines traditional craftsmanship with modern techniques, delivering reliable and high-quality chimney repair London.​

FAQs About Chimney Services in London

1. How long does chimney repointing last?
Chimney repointing, when carried out by experienced professionals like Cornerstone Brickwork, typically lasts between 20 to 30 years. The longevity depends on the materials used, weather exposure, and maintenance practices.

2. Do I need planning permission for chimney breast removal?
In most cases, planning permission is not required for internal chimney breast removal. However, if your property is listed or located in a conservation area, you may need to seek approval. Always consult your local authority or a qualified contractor before proceeding.

3. How disruptive is chimney removal to a household?
Chimney removal can be moderately disruptive. Expect dust, noise, and temporary limitations on room use. A full chimney breast removal usually takes 7–14 days, depending on the project’s complexity and the location of the chimney within the property.

4. Can I remove just part of the chimney?
Yes, it’s common to remove only the internal chimney breast, especially on the ground floor or first floor, while leaving the external stack intact. This option allows homeowners to gain valuable floor space without affecting the roofline or needing major structural alterations.

5. Is chimney repointing covered by home insurance?
Home insurance usually does not cover wear and tear like deteriorating mortar joints. However, if damage is caused by a sudden insured event such as a storm, you may be eligible for coverage. It’s advisable to check with your insurance provider directly.

6. What is the cost of a full chimney removal in London?
A complete chimney removal, including both breast and stack, typically costs between £3,000 and £3,500 in London. This includes structural support, safe dismantling, and waste disposal.

7. Can chimney breast removal improve energy efficiency?
Yes, removing an unused or unsealed chimney breast can eliminate cold draughts and thermal bridges, improving insulation and lowering heating costs.

8. Do I need to inform my neighbour for chimney work?
If the chimney is shared (i.e., on a party wall), the Party Wall Act applies, and you must provide written notice. Your neighbour has the right to consent or request modifications.

9. Is it possible to restore an old chimney instead of removing it?
Absolutely. Restoration through repointing, capping, and relining can preserve the chimney’s character while ensuring safety and functionality.

10. How long does chimney breast removal take?
On average, it takes between 5 to 10 working days, depending on whether it’s on one floor or multiple. Planning, approvals, and post-removal restoration can add additional time.

Conclusion

Chimney repointing, repair, and removal are essential aspects of maintaining a safe, efficient, and aesthetically pleasing property — especially in a city like London, where older brick buildings are common. Whether you’re dealing with crumbling mortar, planning a chimney breast removal for extra space, or considering a complete removal for structural or design reasons, the key is hiring experienced professionals.

Cornerstone Brickwork provides tailored chimney services across London, combining decades of experience with a commitment to safety, precision, and customer satisfaction. From the initial survey to final clean-up, they ensure that every project meets building regulations, complies with legal standards, and exceeds client expectations.

Invest in your property’s long-term value, energy efficiency, and visual appeal — partner with a trusted name like Cornerstone Brickwork for all your chimney needs.