Chimney Repairs in Northern Ireland

Chimneys are the most exposed part of any roof, and in Northern Ireland they take a constant battering from wind and rain. RoofersNI connects homeowners with fully insured local roofers who carry out all types of chimney repair.

Over time the mortar between chimney bricks erodes, letting water in and loosening the brickwork. Repointing involves raking out the old mortar and replacing it with fresh mortar, or lime mortar on older properties, to make the stack solid and weathertight again.

Flashing is the lead that seals the joint between the chimney and the roof. When it cracks, lifts or the mortar holding it fails, rainwater runs straight into the house, often showing up as damp around the chimney breast. Replacing flashing with new code lead is one of the most common chimney jobs.

Leaning, cracked or crumbling stacks can be dangerous and may need partial or full rebuilding. Cracked pots and flaunching, the mortar around the base of the pots, also need replacing to keep water out.

If you no longer use an open fire, capping the chimney with a ventilated cap stops rain, birds and debris entering while allowing air to flow and preventing damp.

Chimney problems are especially common in Northern Ireland's older housing stock. Belfast's Victorian terraces and interwar semis often have shared stacks needing repointing and new lead. In Lisburn, older properties near the city centre regularly need flashing and stack repairs.

Message us on WhatsApp with your area and a photo of the chimney and we will connect you with a local roofer.