
What chimney repair should achieve
Whole junction checked
We look at the stack and the roof line around it, not just the brickwork alone.
Loose parts made safer
Unstable components can be dealt with before wind or water make them worse.
Less water around the stack
Repairing the roof junction helps stop rain working in around the chimney base.
Why chimney faults often turn into roof leaks
A chimney stands in the weather year after year, so it is no surprise that loose masonry, worn mortar, damaged pots or failed caps can start letting water in. The trouble is that the fault is not always limited to the stack itself. Water often gets to work where the chimney meets the roof, then finds a way indoors somewhere less obvious. We carry out chimney repair work for homeowners in Plymouth with that wider picture in mind. With CJ Roofing SW Ltd, we check both the visible stack and the roof junction around it rather than treating the chimney as a separate problem floating above the roof.


Repairing the stack and the roof detail together
The right repair depends on the condition of the masonry, the loose or damaged parts we find and how safely the stack can be reached. We may need to stabilise loose components, renew defective mortar or restore the weather-resistant junction where the chimney passes through the roof. A quote from CJ Roofing SW Ltd explains that scope clearly, including why nearby slates, tiles or flashings may need attention as part of the same job. That joined-up approach usually makes more sense than fixing one part and hoping the rest behaves itself.
Frequently asked questions
Why do chimney problems cause roof leaks?
Because the stack and the roof have to meet at a weather-tight junction. If the masonry has deteriorated or the flashing and surrounding details have failed, water can get in around the chimney and travel into the roof structure. The leak you notice indoors is not always directly beneath the fault.
Will you inspect the roof around the chimney as well?
Yes. That is an important part of the job. We look at the point where the chimney meets the roof and check the nearby slates, tiles and flashings, because chimney leaks are often tied to those surrounding details rather than the masonry alone.
What affects the method used for chimney repairs?
Safe access, the condition of the stack and how far the deterioration has spread all play a part. Some chimneys need local work to stabilise or renew damaged areas, while others need broader attention at the roof junction too. We explain the likely scope once the stack has been inspected properly.

