Chimney Repair Guide (UK)
Repointing, Lead Work & Common Chimney Problems Explained
Chimneys are one of the most exposed parts of your roof, facing constant weathering from rain, wind, and frost. Over time, this can lead to deterioration, leaks, and structural issues if not properly maintained.
At JMB Roofing Ltd, we carry out chimney repairs across Bedford, Northampton, and surrounding areas. Below is a guide to the most common chimney services and what to look out for.
Chimney Repair Guide (UK)
Chimney Repairs (UK Guide)
Repointing, Lead Work & Common Chimney Problems Explained
Below is a breakdown of the three common types of chimney repair services in UK roofing.
Chimney Repointing
Description
Repointing involves removing damaged or deteriorated mortar between the bricks and replacing it with fresh mortar to restore strength and stability.
Best Use
Chimneys with crumbling or missing mortar
Older properties showing signs of wear
Preventative maintenance
Advantages
Restores structural integrity
Prevents water ingress
Extends chimney lifespan
Cost-effective compared to rebuilds
Considerations
Should be carried out before damage worsens
Requires safe access and skilled workmanship
Typical Lifespan
👉 Repointing can last 20–30 years depending on exposure and quality of work
Lead Flashing Repairs & Replacement
Lead Flashing Repairs & Replacement
Description
Lead flashing is installed around the base of the chimney to create a watertight seal where the chimney meets the roof.
Best Use
Leaks around the chimney area
Damaged, lifted, or worn flashing
Older roofs where flashing has deteriorated
Advantages
Prevents water entering the roof
Flexible and long-lasting material
Essential for maintaining a watertight roof
Considerations
Poor installation is a common cause of leaks
Should be checked regularly
Typical Lifespan
👉 Lead flashing can last 50+ years when properly installed
Chimney Repairs & Rebuilds
Chimney Repairs & Rebuilds
Description
More serious chimney damage may require partial repairs or a full rebuild, depending on the condition of the brickwork and structure.
Best Use
Loose or damaged bricks
Leaning chimneys
Severe weather damage
Long-term neglect
Advantages
Restores safety and stability
Prevents further structural damage
Protects the roof and property
Considerations
More costly than minor repairs
Requires professional assessment
Typical Lifespan
👉 A properly rebuilt chimney can last 50+ years
Common Chimney Problems
Look out for:
Crumbling mortar
Loose or missing bricks
Leaks around the chimney
Damp patches inside the property
Visible cracks or leaning
👉 Addressing these early can prevent costly repairs later
How Often Should Chimneys Be Checked?
We recommend:
Visual checks annually
Professional inspection every few years
Inspection after severe weather
Need Chimney Repairs?
At JMB Roofing Ltd, we provide reliable chimney repairs across Bedford, Northampton, and surrounding areas.
📞 Call 07946 408708
📧 [email protected]
👉 Contact us today for expert advice and a FREE quote
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What Client Our Says About Us
Great roofer with excellent customer care!
jason did a fantastic job replacing a leaking flat roof, replacing broken tiles and lead flashings. As it was quite windy and wet on the first night, Jason drove out just to make sure our roof lights were secure and everything was battened down properly. Second day , the job was completed to an excellent standard and all working around a wet and windy couple of days to make sure we were leak free. Its rare to come across such professional tradesmen that genuinely cares for his customers. I wouldn't hesitate to recommend him. Thanks for your great care and professionalism.
Richard O'Brien
100% Recommend, very professional and well priced.
Jay and his son completed a brand new flat roof, really lovely job and were a lot cheaper than the other top rated roofers.
Katie Grace
Total flat roof replacement including boards and full house guttering replacement.
We had a fantastic experience with JMB! From start to finish we were thoroughly impressed. Jason and co worked incredibly hard on our complete flat roof replacement and new guttering, and the quality of their work is outstanding. We were so grateful for their professionalism they were always polite , tidy, and clearly experts, guiding us with their knowledge whenever we had questions. Its clear he runs a wonderful family business built on fair prices and honest work. We would while heartedly recommend JMB to anyone. Thank you so much for everything!!
Callie Prentice
