Chimney work tied back into the roof
Masonry condition checked
We inspect bricks, mortar joints and unstable areas above the roofline.
Leadwork formed properly
We direct rain away from the stack-to-roof junction with suitable flashing.
Repair scale explained
We compare repointing, restoration and rebuilding against the actual damage.
Stop the chimney letting water into the roof
A chimney stands above the covering and takes the full force of the weather. Mortar joints can wash out, bricks can deteriorate and flashing can lift or split. These faults may let water into the roof even when nearby slates or tiles remain sound. We inspect the stack above roof level, its masonry, joints and the surrounding junction before recommending work. Our chimney stack rebuilding in Northampton ranges from local repointing and leadwork renewal to restoration or a full rebuild of badly deteriorated sections. The repair should address the failing part rather than coating over damaged mortar and hoping the next winter is kind.
Safe dismantling and a sound roof junction
Where a stack has become severely worn or unstable, rebuilding may require controlled dismantling to a suitable level before the masonry is reinstated. Safe access and scaffolding are considered as part of that work. We then restore the surrounding roof covering and form the junction so water is turned away from the chimney. Correctly shaped lead flashing is vital because it bridges materials that move and weather differently. If the masonry remains sound, targeted pointing or flashing work may be enough. We explain what can be retained, what must come down and how the roof will be made weatherproof around the finished stack.
Frequently asked questions
Does a leaking chimney always need rebuilding?
No. Water may be entering through failed pointing, damaged flashing or a local masonry defect. We inspect the stack and roof junction first. Rebuilding is more suitable when deterioration is severe, widespread or has left sections unstable.
Why is lead flashing important around a chimney?
Flashing seals the change between the upright chimney and the sloping roof. It must direct rain back onto the covering while allowing for the junction between different materials. Split, loose or poorly formed leadwork can create a direct water route.
What happens to the surrounding tiles or slates?
Coverings around the stack may need careful removal to reach the masonry or flashing. After the chimney work is complete, we reinstate the surrounding roof and finish the junction so it connects properly with the existing slate or tile system.