Chimney Flaunching
Cracked flaunching replaced to stop water entering your chimney stack.
- New mortar cap shaped for water run-off
- Chimney pots reset and secured
- Fixed pricing with no hidden extras
Cracked Flaunching Is a Hidden Source of Leaks
Flaunching is the mortar cap that sits on top of the chimney stack, bedding the chimney pots in place and shedding rainwater off the crown. Over time, flaunching cracks and breaks away due to frost damage and thermal movement. Once gaps appear, water pours down through the stack, causing persistent damp on chimney breasts and ceilings. Loose chimney pots also become a serious safety hazard in high winds.
Radiant Roofing replaces chimney flaunching across Kent, Sussex and Surrey. We remove all old flaunching, check the condition of the chimney pots and brickwork beneath, and apply a new mortar cap properly shaped to throw water clear of the stack. If chimney pots are loose or damaged, we reset or replace them as part of the job.
How It Works
Chimney Inspection
We inspect the flaunching from scaffold or ladder, check the chimney pots and note any repointing or flashing issues that should be addressed at the same time.
Fixed Quote
You receive a clear quote covering scaffold, flaunching removal, new mortar cap and any chimney pot work — no hidden charges.
Flaunching Renewal
We remove all old flaunching, prepare the surface and apply a new mortar cap with the correct fall to shed water. Chimney pots are reset and secured.
Guarantee
All flaunching work is backed by our workmanship guarantee. New flaunching typically lasts 20 to 30 years.
Chimney Inspection
We inspect the flaunching from scaffold or ladder, check the chimney pots and note any repointing or flashing issues that should be addressed at the same time.
Fixed Quote
You receive a clear quote covering scaffold, flaunching removal, new mortar cap and any chimney pot work — no hidden charges.
Flaunching Renewal
We remove all old flaunching, prepare the surface and apply a new mortar cap with the correct fall to shed water. Chimney pots are reset and secured.
Guarantee
All flaunching work is backed by our workmanship guarantee. New flaunching typically lasts 20 to 30 years.
What Our Chimney Flaunching Service Includes
We replace flaunching on all chimney types. The work is straightforward but must be done correctly — the mortar must be mixed to the right specification and shaped to shed water, not trap it.
What Does Chimney Flaunching Cost?
Typical price range
£200 – £800
VAT may apply depending on the project
Factors that affect the price:
- 1Size of the chimney stack
- 2Number of chimney pots to bed
- 3Whether chimney pots need replacing
- 4Scaffold and access requirements
A standard chimney flaunching replacement costs £200 to £500 plus scaffold. We often combine flaunching with repointing or lead flashing replacement to make the most of the scaffold access and save you money overall.
What Our Customers Say
Verified Google ReviewsJane S.
Kent
They were very friendly, professional and polite and left the site immaculate at the end of the day. I would thoroughly recommend them to others. The work was carried out to a very high standard.
Peter B.
East Sussex
Excellent work, highly recommended! Very knowledgeable, by far the best roofing company we have ever used and super nice guys.
Sarah M.
Surrey
Radiant Roofing completed our roof repair quickly and professionally. Great communication throughout and a fantastic result.
Frequently Asked Questions
Chimney flaunching typically costs £200 to £800 including scaffold. A standard single-flue chimney with one or two pots costs £200 to £500, while larger stacks with multiple pots run higher. Scaffold is usually required and represents a significant part of the cost, which is why we recommend combining flaunching with any repointing or flashing work needed.
From ground level, look for visible cracks or gaps in the mortar cap around the chimney pots. If pieces of mortar have fallen into the gutter or onto the roof, the flaunching is failing. Damp patches appearing on chimney breasts or ceilings near the chimney are another strong indicator. We can inspect from scaffold and photograph the condition for you.
Yes. If your chimney pots are cracked, chipped or leaning, we can replace them with matching terracotta or clay pots as part of the flaunching job. We carry a range of standard pot sizes and can source specialist or period replacements if needed.
We cover Kent, East Sussex, West Sussex and Surrey. Our teams regularly carry out chimney flaunching in Tunbridge Wells, Crowborough, Sevenoaks, Tonbridge, Uckfield, Haywards Heath, East Grinstead and surrounding areas.
Yes. All chimney flaunching is backed by our workmanship guarantee. Properly applied flaunching with the correct mortar specification typically lasts 20 to 30 years. If any issue arises from our work, we return and put it right at no cost.
Contact Us!
Get in touch with us!
Looking for a free quote? Just fill in the form below, and we'll take care of the rest!
Contact Information:
Mobile (24/7): 07753 165 005
Landline (Office Hours): 01892 356 967
Email: contact@radiantroofing.co.uk
Head Office:
Address:
Alpha House
Crowborough Hill
Crowborough
TN6 2EG
Opening Hours:
Monday to Friday: 7:30 am – 6:00 pm
Saturday: 7:30 am – 12:00 pm
Sunday: Closed (mobile still available)
Our Mobile and Email is available 24/7
