Excellent repair work complete by KR & Sons Roofing. Good communication throughout and work completed in a timely manner. Work finished below the quoted estimate. Highly recommended and trustworthy company.

Chimney repairs in Hertfordshire, from cracked flaunching to a full rebuild
Chimney repairs in Hertfordshire for stacks that leak, crumble or lean, up to a full rebuild. Ring Kieran on 07310 120341 or send the form for a free written quote, with no call-out fee.
Chimneys take more weather than any other part of the roof. The mortar between the bricks washes out, the flaunching round the pots cracks and lets water down inside the stack, and the lead where the chimney meets the roof lifts or splits. The result is a damp patch on the chimney breast that grows every winter.
We repoint stacks, rebuild flaunching, refit or replace pots and cowls, cap chimneys you no longer use, and renew the lead round the base. When a stack is leaning or the brickwork has gone too far, we take it down and rebuild it.
Victorian and Edwardian terraces in St Albans and Watford share their stacks on the party wall, and so do plenty of 1930s semis across Hertfordshire. Work on a shared chimney affects next door, so we talk it through with you before anything starts. A recent Stevenage job on our Instagram shows a roof re-slated round its chimney.
What is included
- Chimney stacks repointed
- Flaunching rebuilt round the pots
- Pots and cowls replaced
- Unused chimneys capped and vented
- Leaning or crumbling stacks taken down and rebuilt
- New lead flashings, soakers and back gutters
- Cracked or spalled bricks replaced
- Scaffold or access arranged and priced on the quote
Signs you need this
- A damp patch on the chimney breast
- Mortar or brick crumbs on the roof or the path
- Lead lifting or split at the base of the stack
- A stack that leans or pots that rock
- Plants growing out of the brickwork
Chimney repairs: our recent work
Tap a photo to enlarge it.
Twin brick chimney stack on a slate roof with stepped lead flashing
Red tiled roof and brick chimney above a white rendered house with scaffold up
Red brick chimney stack with a stone cap and two cowls on a grey roof
How it works
Survey
Kieran looks at the stack, the lead and the loft.
Written quote
Repair or rebuild, with access and scaffold in the price.
Repair
Repointing, flaunching, lead or a full rebuild.
Checked and cleared
Finished stack checked, site cleared, work guaranteed.
A damp chimney breast starts outside. We fix the stack, not the plaster.
Chimney repairs: your questions answered
How much do chimney repairs cost in Hertfordshire?
Across Hertfordshire, repointing and new flaunching on a standard stack runs about £500 to £1,500 including access. New lead round a chimney runs about £400 to £900, and rebuilding a stack above the roof about £1,500 to £4,000. Kieran's free written quote gives you the real figure.
Do I need scaffold for chimney work?
For most stacks, yes, or a chimney access platform. It is on your written quote, so there are no surprises.
My chimney is shared with next door. What happens?
Shared stacks are common on Hertfordshire terraces and semis. We talk it through with you, and with your neighbour where needed, before work starts.
Can you deal with a chimney I no longer use?
Yes. Capping and venting it keeps the water out and the flue dry. Taking a stack down is a bigger job, quoted on its own.
Why is my chimney breast damp?
Water is getting in at the top or the base: cracked flaunching, open mortar joints or failed lead flashing. Fix the outside first, then let the plaster dry out.
Related services
What our customers say
Highly recommend! Had an issue with my roof flashing after a storm, he was very quick to come out and have a look/quote. Work was carried out the following week and a further issue was found after work started, was very generous in supporting me with the added cost!
Outstanding roofing company! I honestly can’t recommend KR & Sons Roofing & Guttering Ltd enough. From the first contact, they were friendly, professional and extremely helpful. The whole team worked incredibly hard and the standard of their workmanship was brilliant. They were reliable, tidy and kept me informed throughout the job, and the finished roof looks absolutely fantastic. It’s not often you come across a company that takes this much pride in their work. I’m extremely happy with the result and would have no hesitation whatsoever in recommending them to family, friends or anyone looking for a top-quality roofing company. Fantastic team, fantastic workmanship and a fantastic service from start to finish!
Came to have a look at a blocked gutter on our terraced property. Turned up on time, was friendly and identified the problem and took time to explain to us the options. Really grateful - thank you so much!
Very Efficient, helped with a small guttering problem that they fixed there & then, highly recommend & communication was excellent
Excellent service 10/10 couldn’t recommend better. Kieran was great help throughout.
I had a great experience with [kr&sonsroofingandgutteringltd]! From start to finish, their team was professional, punctual, and highly skilled. The quality of the materials and workmanship exceeded my expectations. They completed the job on time, kept the area clean, and made sure I was happy with every detail. I highly recommend them to anyone looking for reliable and high-quality roofing work.
Great quality work, effective clean up after and efficient communication throughout. Really good to get the run down of the work as it went along, and assurance with a gaurantee at the end
roof
guarantee
Every new roof guaranteed for 20 years, in writing
The 20 years count from the day we finish. All work guaranteed, and the guarantee for your job goes on your written quote.
What is covered
- Every new roof we fit, for 20 years
- All our other work: repairs, chimneys, leadwork, flat roofs and gutters
- In writing, on your quote before any work starts
How to claim
- Ring Kieran on 07310 120341
- He comes back and looks at it
- He puts it right
Talk to us about chimney repairs
Ring or send the form. Kieran comes out, looks at the roof, explains the options and gives you a free written quote, with no call-out fee.



