Why Chimneys Need Special Attention
Your chimney is one of the most exposed parts of your roof, taking the full force of rain, frost and wind all year round. Over time this weathering breaks down the mortar joints and the flashing that seals the chimney to the roof – and because a chimney sits above the main roofline, small problems here are often missed until they’ve caused damp or damage inside the property.
Small chimney problems are often missed until they’ve caused damp or damage inside the property – regular attention keeps it that way rather than the alternative.
We inspect and repair chimneys of all types, from straightforward repointing to full rebuilds, and can also safely cap or remove a chimney that’s no longer in use.
Repointing & Brickwork
Mortar is softer than brick and erodes faster from years of rain and frost. Once it starts crumbling, water gets into the joints and undermines the whole stack – repointing replaces the failing mortar and stops the problem in its tracks before it spreads to the brickwork itself.
- Mortar joint repointing
- Spalled & damaged brick replacement
- Chimney pot repair & replacement
Lead Flashing Repairs
Flashing is the lead sealing the join between your chimney and the roof covering – one of the most common sources of a roof leak, and often mistaken for a problem with the roof itself. Age, thermal movement and crumbling mortar in the flashing chase all cause it to lift, crack or work loose over time.
- Lead flashing renewal
- Flashing chase repointing
- Leak diagnosis around the chimney
Recent project · Wrexham
Chimney Repointed & Flaunched in Wrexham
We put scaffolding up to give a safe working platform, took the old mortar off the top and ground out the whole chimney ready to be repointed and flaunched on top. Here is the job from start to finish.
Scaffold Up, Old Mortar Ground Out
Scaffolding went up first, so all the work could be done from a safe working platform. The old mortar was taken off the top and the whole chimney was ground out, ready to be repointed and flaunched on top.
Cutting the old mortar out properly gives the new pointing a sound joint to bond to, which is why we do not rush this part.
- Scaffolding erected for a safe working platform
- Old mortar taken off the top of the stack
- Whole chimney ground out, ready for repointing
- Repointed, with the top flaunched
Our Chimney Repair Services
Our Chimney Repair Process
Chimney Inspection
We check the stack, pots, mortar joints and flashing for signs of wear, damage or leaning, both from the roof and from inside where visible.
Honest Recommendation
We advise whether repointing or a flashing repair will solve the problem, or whether more significant work such as a rebuild is genuinely needed.
Repair Or Rebuild
Your chimney is repointed, re-flashed, or – where the stack is structurally compromised – safely rebuilt using matching brick and mortar.
Final Check
We check the completed work is sound, weathertight and finished neatly before we consider the job done.
Why Choose KJ for Chimney Repairs?
More Roofing Help Around Wrexham
Need more than one job done? These pages cover the rest of our work around Wrexham, plus the same service in the areas nearby.
Other services in Wrexham
Frequently Asked Questions
How do I know if my chimney needs repairing?
Common warning signs include a chimney that’s visibly leaning, cracked or damaged pots, crumbling or missing mortar joints, spalling (flaking) brickwork, and damp or staining patches on walls or ceilings near the chimney breast inside the property. If you notice any of these, it’s worth getting the chimney inspected.
What is chimney flashing and why does it fail?
Flashing is the lead (or similar material) dressed into the join between your chimney and the roof covering to seal it against water. It can fail as the lead ages and moves with temperature changes, as mortar in the flashing chase crumbles and releases it, or simply from it working loose over time – it’s one of the most common causes of a leak near a chimney.
Does my chimney need repointing, or a full rebuild?
Repointing is usually enough where the brickwork itself is sound but the mortar has eroded. A rebuild becomes necessary when there’s genuine structural movement, widespread spalled brick, or a stack that’s leaning – we’ll inspect your chimney and give you an honest recommendation rather than suggesting more work than is needed.
Can you remove or cap a chimney that’s no longer used?
Yes. A disused chimney can be capped with a vented cover to keep out water, birds and debris while still allowing airflow to prevent damp, or removed down to roof level (or lower) if you’d prefer it gone entirely. Full removal can affect the roof structure, so we’ll talk you through what’s involved for your specific property.
Do you offer a guarantee on chimney repair work?
Yes, all our chimney work is guaranteed. Get in touch for the specific terms that apply to your job, as this can depend on the type and scale of the work involved.
How much does chimney repair work cost?
Cost depends on the scope of work needed – a small repointing job costs considerably less than a full rebuild – as well as access and the chimney’s condition. We provide free, no-obligation quotes so you can get an accurate price for your property.
- Fully Insured
- 10-Year GuaranteeNew roofs
- 12-Month GuaranteeRepairs
- Free QuotesNo obligation
Ready for a free, no-obligation quote on your chimney?
Get A Free QuoteFree Quotes
Get Your Free Roofing Quote In 3 Easy Steps
Tell us what you need and where you are. We’ll look at your details and get back to you with a clear, no-obligation price.
- Free, no-obligation quote
- Fully insured
- 10-year workmanship guarantee on new roofs
- Reply within 24 hours