Chimney Work Across Bucks, Berks & Herts
Cracked flaunching, weathered pointing and leaking chimneys put right, with honest advice. Discuss whether repair or replacement is appropriate for the chimney condition.
Checkatrade member · 16 years' experience · Free, no-obligation quotes
Before & after
See the difference on a real chimney work job
Service overview
What chimney work involves, and why it matters
What it is
Chimney work covers renewing the flaunching (the mortar around the pots), repointing brickwork, resetting pots, and repairing where the chimney meets the roof. It is often combined with leadwork and flashing.
Who it's for
Homeowners with damp around the chimney breast, cracked mortar on top of the stack, loose pots, or a survey flagging chimney defects.
When you need it
Act when you see crumbling mortar, cracked flaunching, loose or leaning pots, damp in the loft around the stack, or staining on the chimney breast inside.
Why use a professional roofer
Chimneys are exposed on every side. One customer, Julia from HP1, told us we did not try to sell her a new roof or chimney but fixed exactly what was needed at the quoted price.
The cost of waiting
What happens if you leave it
A failing chimney lets water in at the highest point of the house, and it runs down inside.
Damp chimney breasts
Water through the stack shows up as stains and peeling decor around the chimney breast.
Falling masonry
Loose pots and bricks can fall onto the roof or the ground below.
Roof leaks around the stack
Failed flaunching and flashing let water run onto the roof timbers.
Costly rebuilds
Left too long, a chimney that needed repointing may need rebuilding.
Common mistakes homeowners make
- Ignoring cracks in the flaunching
- Assuming every chimney needs rebuilding
- Fixing the stack but not the flashing
- Using the wrong mortar for the brickwork
Our process
Five clear steps from first call to finished job
- 1
Contact
Call or send an enquiry during working hours to discuss your roofing needs.
- 2
Scope
Discuss the roof condition, access and proposed work with Billy.
- 3
Free quote
All work is quote-only, with free, no-obligation quotes.
- 4
Agree details
Confirm materials, timing, payment arrangements and how any additional work would be agreed before accepting.
- 5
Guarantee terms
New pitched roofs carry a 20-year guarantee. Flat roof guarantee length varies by system. Ask what terms apply to this job.
Benefits and considerations
Results depend on the roof condition, specification and work agreed. Customer feedback describes individual jobs, not a guarantee of the same outcome. Ask for the scope and applicable guarantee terms in your quote.
Leak fixed at source
Repairing flaunching and flashing together stops water at the stack.
No unnecessary rebuilds
We only recommend rebuilding when a repair will not do.
Safer stack
Secure pots and sound masonry reduce the risk of falling debris.
Quoted price paid
Customers report paying exactly what was quoted.
On time
Reviews mention us turning up on time and cleaning up afterwards.
Insured
£1m public liability insurance and Checkatrade member.
In detail
Materials and methods to discuss
These are general roofing considerations, not a confirmed specification for every job. Materials, matching, access and installation details need to be agreed with Billy for your roof.
Chimney repairs range from small maintenance jobs to more involved work, depending on condition.
Flaunching
We renew the sloping mortar around the pots so water runs off the top of the stack.
Repointing
Weathered joints are raked out and repointed to keep water out of the brickwork.
Pots and cowls
We reset loose pots and fit cowls. See our chimney cowl page.
Flashing and leadwork
Where the chimney meets the roof, we reshape or renew leadwork. See our leadwork page.
Combined repairs
Chimney work is often done alongside verge, ridge or tile repairs to save on access.
Getting chimney work right
A chimney stack is effectively a tower of brickwork sitting above the roof, exposed to wind and rain on all sides. The top of the stack is protected by flaunching, a sloping bed of mortar around the pots that sheds water away. When flaunching cracks, water soaks straight into the stack and runs down inside the brickwork.
Pointing between the bricks also weathers over time. Once joints recess or crumble, rain penetrates further and can cause damp patches on chimney breasts inside, particularly in upstairs bedrooms and lofts. Repointing restores the barrier.
Where the chimney meets the roof, lead flashing seals the gap. A chimney repair often needs attention to all three: flaunching, pointing and flashing. Fixing only one can leave the leak in place. We assess them together and quote for exactly what is needed, whether you are in Rickmansworth, Amersham or elsewhere across our area.
Damp on a chimney breast is not always caused by the roof. It can also come from condensation in an unused flue or from salts in old brickwork. That is why we inspect carefully before recommending work, so you are not paying for a repair that will not fix the problem.
Chimney repairs often need safe access at height, so combining chimney work with any other roof repairs you need, such as leadwork, verge rebedding or ridge repairs, is usually more cost-effective than booking them separately. We will point out anything else we notice while we are there and let you decide.
Why homeowners choose BMB Roofing
BMB Roofing is owned and managed by Billy, who has 16 years of roofing trade experience. The business has traded for over two years and works with a dedicated on-site team.
All work is quote-only, with free, no-obligation quotes. Payment is by bank transfer or cash only; deposit and staged-payment requirements have not been provided.
The supplied reviews include individual accounts of communication, paying the quoted price and tidy sites. These are customer experiences, not universal promises about timing, price changes or results.
BMB Roofing is a Checkatrade member and carries £1 million public liability insurance. New pitched roofs come with a 20-year guarantee; flat roof guarantee length varies depending on the system installed. Working hours are Monday to Friday, 8am to 7pm.
What to expect on the day
Before accepting your quote, discuss the work included, materials, access, expected timing and payment arrangements with Billy.
Ask how any additional work and costs would be agreed if the roof reveals further issues. Timing can depend on the scope, access and weather.
Payment is by bank transfer or cash only. Ask for the guarantee terms applicable to your job; only new pitched roofs have a confirmed 20-year guarantee, and flat roof guarantee length varies by system.
What customers say
10/10 · Supplied review excerpt
"I had 5 quotes and found Bill to be the most thorough when assessing the work. He took the time to show me photos of the work needed to fix the roof. The quote was very competitive and he gave me a lot of confidence he was the right person to complete the work. The work was completed to a high standard. Even when some additional repairs were needed he explained the work and communicated exactly what was needed.…"
10/10 · Supplied review excerpt
"I was impressed by the two man team who looked at the roof edge and chimney problem and assessed what action was needed. They did not try and sell me a new roof or new chimney but were very honest and efficient. A price was quoted and a date set. They turned up on time and cleaned up after them and I paid the quoted price. They were also helpful and engaging. I would heartily recommend them. They did a good job.…"
10/10 · Supplied review excerpt
"I had a leak from my roof due to a problem with my ridge tiles and called BMB Roofing. I was really impressed with their work ethic and professionalism from start to finish. They didn't cut any corners and made sure the job was done correctly and to a high standard, They were very customer-orientated, happy to explain everything and answered any questions I had.…"
Where we work
Chimney Work across Bucks, Berks and Herts
BMB Roofing is based in TW19 5NG and provides residential roofing services across Buckinghamshire, Berkshire and Hertfordshire, including the named towns listed here.
Chimney Work: your questions answered
How much does chimney repair cost?
+
It depends on the work and access needed. We provide a free, no-obligation quote.
How long does it take?
+
Duration depends on the chimney condition, access and work required. Ask Billy about timing.
Do I need a chimney rebuild?
+
Often not. We assess honestly and only recommend a rebuild if it is genuinely needed.
Is there a guarantee?
+
A guarantee for this type of work has not been specified in the supplied business information. Ask Billy whether any guarantee applies and for its terms.
Do you repair chimneys in Rickmansworth?
+
Yes, and across Amersham, Chesham, Hemel Hempstead, High Wycombe, Maidenhead, Reading, Henley-on-Thames and Basingstoke.
Do you offer emergency chimney repairs?
+
We do not offer emergency call-outs. We work Monday to Friday, 8am to 7pm.
Do you offer emergency call-outs?
+
No. We work Monday to Friday, 8am to 7pm, and do not offer emergency call-outs outside those hours. Call or send the form and we will respond within working hours.
How do I pay?
+
We accept bank transfer or cash.
Are you insured and accredited?
+
Yes. BMB Roofing is a Checkatrade member and carries £1 million public liability insurance.
What happens if extra work is needed once you start?
+
A roof may reveal further issues once opened up. Before accepting your quote, ask how additional work and any changes in cost would be agreed. The supplied business information does not specify this policy.
Will I be dealing with the owner?
+
BMB Roofing is owned and managed by Billy, who has 16 years of roofing trade experience, and works with an on-site team. Contact the business to discuss who will assess and carry out your work.
Is the quote really free?
+
Yes. Every quote is free and comes with no obligation. We work strictly on a quote basis, so you know the price before any work starts.
Related services
Leadwork & Flashing
Lead flashing, valley and soaker repairs and renewal.
Chimney Cowl Installation
Cowls fitted to keep rain, birds and debris out of your chimney.
Verge Repairs & Rebedding
Verges rebedded or dry-fixed so the roof edge stays secure.
Roof Repairs & Maintenance
Roof leak investigation, repairs and general maintenance. Free, no-obligation quotes.
Get your chimney work sorted, at a price agreed up front
Free, no-obligation quote. Honest advice. Checkatrade member with £1m public liability insurance. Mon–Fri, 8am–7pm.
07379 843940Prefer to write? Contact us.