
Chimney Capping & Cowls
Disused chimney pots capped to stop rain, birds and debris while maintaining ventilation.
- Terracotta, metal and mesh cowl options
- Maintains airflow to prevent condensation
- Fixed pricing with no hidden extras
Open Chimney Pots Invite Problems
If your chimney is no longer in regular use but the pots are still open, you are inviting rain, leaves, bird nests and debris straight down into the flue. Rainwater pooling in an unused flue causes persistent damp on chimney breasts. Bird nests block the flue entirely and can introduce mites and insects into your home. In the worst cases, nesting material falls onto forgotten fireplace registers and creates a hidden fire risk.
Radiant Roofing fits chimney caps and cowls across Kent, Sussex and Surrey. We supply and install terracotta caps, stainless steel cowls and mesh bird guards to seal your chimney pots while maintaining the airflow needed to prevent condensation in the flue. It is a quick, affordable job that prevents a range of expensive problems.

How It Works
Chimney Check
We inspect the chimney pots, check the flue status and recommend the right cap or cowl type for your situation — ventilated, rain-only or bird guard.
Fixed Quote
You receive a clear quote covering access, cap or cowl supply and fitting. We often combine with flaunching or repointing to save on scaffold costs.
Cap or Cowl Fitted
We fit your chosen cap or cowl securely to the chimney pot, ensuring it is weathertight and correctly ventilated.
Guarantee
All capping and cowl installations are backed by our workmanship guarantee.
Chimney Check
We inspect the chimney pots, check the flue status and recommend the right cap or cowl type for your situation — ventilated, rain-only or bird guard.
Fixed Quote
You receive a clear quote covering access, cap or cowl supply and fitting. We often combine with flaunching or repointing to save on scaffold costs.
Cap or Cowl Fitted
We fit your chosen cap or cowl securely to the chimney pot, ensuring it is weathertight and correctly ventilated.
Guarantee
All capping and cowl installations are backed by our workmanship guarantee.
What Our Chimney Capping Service Includes
We supply and fit a range of chimney caps and cowls to suit every chimney type and situation. Whether you need to stop rain, block birds or simply seal a disused flue, we have the right solution.

What Does Chimney Capping Cost?
Typical price range
£80 – £500
VAT may apply depending on the project
Factors that affect the price:
- 1Type of cap or cowl (terracotta, steel, mesh)
- 2Number of chimney pots to cap
- 3Whether scaffold access is needed
- 4Any additional flaunching or pot work
A single chimney cap or cowl fitted from ladder access costs £80 to £150. Multiple pots or scaffold access pushes the cost toward £300 to £500. We strongly recommend combining capping with any other chimney work to share scaffold costs.
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 capping typically costs between £80 and £500. A single cap or cowl fitted from ladder costs £80 to £150. If scaffold is needed or multiple pots need capping, expect £300 to £500. The cost is minimal compared to the damp, bird and debris problems that open chimney pots cause over time.
If the flue is connected to a working fireplace or wood burner, you need a ventilated cowl — not a solid cap. We fit rain cowls and anti-downdraught cowls that allow smoke and gases to escape freely while keeping rain out. Solid caps are only suitable for completely disused flues.
Not if the right cap is used. Ventilated caps and cowls allow air to circulate through the flue, preventing moisture build-up. Solid caps are only fitted to flues that have proper ventilation at the fireplace end — usually via a ventilated register plate or air brick. We check this before recommending a cap type.
We cover Kent, East Sussex, West Sussex and Surrey. Our teams regularly fit chimney caps and cowls in Tunbridge Wells, Crowborough, Sevenoaks, Tonbridge, Uckfield, Haywards Heath, East Grinstead and surrounding areas.
Yes. All chimney cap and cowl installations are backed by our workmanship guarantee. The products themselves also carry manufacturer warranties. If a cap or cowl comes loose or fails, we return and resolve it 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