Brighton Roofer

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Chimney Stack Repairs, Removal & Replacement in Brighton & Sussex

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Home > Roofing services > Chimney Stacks

Expert Chimney Specialists for Safe, Long-Lasting Results

Your chimney stack is one of the most exposed and vulnerable parts of your roof. Constantly facing wind, rain, storms and coastal weather, it requires proper maintenance and professional care to stay safe and structurally sound.

At BrightonRoofers, we specialise in:

  • Chimney stack repairs

  • Chimney repointing

  • Chimney leadwork

  • Chimney pot re-flaunching

  • Complete chimney removal

  • Chimney rebuilding

  • Chimney inspections & surveys

Whether your chimney is leaking, crumbling, unsafe or simply old, our experienced team delivers durable, compliant and long-lasting solutions.

We also provide free chimney surveys to help you decide whether a repair or a full replacement is needed.

If you would like a quote, call today on 07474 700259 
Request a free quote

  • No job too big or small

  • Free expert advice

  • Full chimney and roofline expertise

  • Over 40 years’ roofing experience

Submit this form to request a call back for a FREE roof health check

If you need any help, call us today: 07474 700259

or email us at info@brightonroofer.co.uk

What Does Chimney Work Involve?

Chimneys involve several interconnected components, and problems usually appear in specific areas. Here’s what our chimney services may include:

1. Chimney Repointing

Chimney pointing typically needs renewing every 20–25 years.
We grind out old mortar to 15mm and repoint using a strong sand/cement mix for a robust, weatherproof finish.

2. Re-Flaunching or Removing Chimney Pots

When chimney flues become redundant — such as after removing a fireplace — we can safely:

  • Re-flaunch chimney pots

  • Remove unused pots

  • Seal or upgrade flue terminals

3. Chimney Demolition (Partial or Full Removal)

If your chimney is no longer required or structurally unsafe, we can:

  • Dismantle it safely

  • Remove it to below roof height

  • Tile or slate over the area

  • Restore your roof’s appearance

This is a common choice for homeowners wanting a modern, maintenance-free roofline.

4. Chimney Rebuilds

Older chimneys—particularly those built between 1900 and 1940—often “belly out” due to heat damage from historical coal fires.
We can rebuild chimney stacks from the ground up using modern, durable methods.
After rebuilding, a Gas Safe engineer carries out a smoke test for safety.

5. Chimney Leadwork

Lead flashing is one of the main causes of chimney leaks.
Modern regulations require:

  • Code 4 lead for flashings

  • Code 5 lead for rear gutters and aprons

We ensure all leadwork meets the latest standards for full compliance and long-term waterproofing.

6. Professional Scaffolding Setup

Chimney repairs often require specialised access equipment such as a chimney saddle scaffold.
This ensures safety, stability and compliance during all chimney work.

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Repointing

rotton roof timbers

Reflaunch Pots

roof damaged from frost

Demolition

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Rebuild

rotton roof timbers

Lead Work

roof damaged from frost

Scaffolding

Why Homeowners Choose BrightonRoofers
  • Trusted locally across Brighton, Hove, Portslade & Sussex
  • Highly experienced pitched roof specialists
  • Clear, honest advice — no upselling, no pressure
  • Premium materials with excellent guarantees
  • Full transparency through detailed photo reports
  • Emergency call-outs for storm and leak repairs

Your roof protects your entire home — we protect your roof.

How do I know if my chimney needs repairing?

Common signs include cracked brickwork, missing mortar, loose or leaning stacks, water stains inside the home, falling debris, damp patches, or a noticeable draught coming from the chimney.

What causes chimney stacks to deteriorate?

Weather exposure, storm damage, chimney heat, mortar ageing, nail sickness, poor ventilation, and decades of movement can all weaken the brickwork, leadwork or flaunching.

Can you repair a chimney instead of replacing it?

Yes. Many chimneys only need repointing, new lead flashing or re-flaunching of the pots. Full replacement is only recommended when the chimney is structurally unsafe or beyond economical repair.

What is chimney repointing?

Chimney repointing involves removing deteriorated mortar and replacing it with fresh, weather-resistant mortar. This strengthens the chimney, prevents water ingress and improves overall stability.

What is chimney re-flaunching?

Re-flaunching is the process of renewing the concrete base around chimney pots. It helps secure the pots, prevents leaks and ensures water sheds correctly from the top of the stack.

Do you deal with chimney lead flashing leaks?

Yes. Damaged or poorly installed lead flashing is one of the most common causes of chimney leaks. We repair or replace flashing to modern standards using Code 4 and Code 5 lead.

When should a chimney be completely removed?

A chimney should be removed if it is redundant, unsafe, severely cracked, leaning, or repeatedly causing internal leaks. We can remove it to below roof height and tile/slate over the area seamlessly.

What is involved in a chimney rebuild?

A rebuild may include dismantling unsafe brickwork, replacing damaged bricks and mortar, installing new lead flashing, reconstructing the stack, and arranging a Gas Safe smoke test afterward.

How long does chimney repair or replacement take?

Most chimney repairs take half a day to two days, depending on the issue. Full chimney rebuilds or removals typically take 1–3 days.

Do you need scaffolding for chimney work?

Yes. To meet safety regulations, most chimney repairs require scaffolding or a chimney saddle to ensure safe access and compliance with building standards.

Is chimney work dangerous to attempt yourself?

Yes. To meet safety regulations, most chimney repairs require scaffolding or a chimney saddle to ensure safe access and compliance with building standards.