Chimney Repairs in Old Town

Chimney Repairs in Old Town

Chimney repairs in Old Town cover the full range of chimney maintenance — repointing, lead flashing replacement, pot replacement, stack rebuilding and chimney removal where required. We cover all of Old Town and the BN21 area with free surveys and no call-out fee.

The historic core around St Mary's Church with a mix of Victorian, Edwardian and some pre-Victorian properties; conservation area designation applies to the historic streets in Old Town means that many chimney stacks were built with materials and mortars that are now at the end of their design life. The local elevated above the town centre with some South Downs wind exposure; less direct salt loading than the seafront but still coastal climate influence; code 4 lead standard throughout accelerates mortar deterioration — particularly on the north and west-facing sides of stacks. The most common chimney repair calls from Old Town involve conservation area compliance on the historic streets; lime mortar essential on pre-1920 masonry; Welsh slate and clay tile sourcing for like-for-like replacement; nail sickness on some 1950s infill properties.

Mortar selection is critical on chimney repairs. Modern sand/cement mortar is too hard for Victorian and Edwardian brickwork — it forces movement stress into the brick rather than the mortar joint, causing accelerated spalling. We use natural hydraulic lime (NHL) mortar on all pre-1940 chimney stacks as standard.

Chimney Repair Services in Old Town

Full chimney repointing — lime mortar on period properties, flexible mortar on modern stock. Lead flashing replacement — code 4 standard, code 5 on exposed or seafront locations. Chimney pot replacement — bedded in appropriate mortar, stainless strap fixings on exposed stacks. Stack rebuilding where mortar failure has progressed to structural movement. Chimney removal and capping where the flue is redundant. Flaunching repair or replacement. All chimney work in Old Town carries our 10-year workmanship guarantee.

How We Inspect Chimneys in Old Town

Chimney inspections in Old Town cover the full stack from flaunching at the top to apron flashings at the base. We check pointing condition, lead code and lapping detail, pot and cowl integrity, and chimney breast condition below the roofline. Most Old Town chimney problems are identified visually from the roof — we get on the roof for every survey, not just the ladder.

Repointing vs Rebuilding in Old Town

Repointing is appropriate when the masonry is sound but the mortar joints have eroded or cracked. On pre-1940 Old Town chimneys, we use NHL lime mortar — sand-cement mortar is too rigid and accelerates masonry damage. Rebuilding is required when the stack has moved, the internal flue structure is compromised, or more than 40% of the mortar joints are failed. We tell you honestly which is needed.

Lead Flashings on Old Town Chimneys

Lead flashing failure is the most common cause of chimney-related water ingress in Old Town. Code 4 lead minimum on all Old Town properties — code 3 is insufficient for the thermal cycle here. Flashings are cut and dressed correctly — not bedded in frame sealant, which is a temporary fix. All lead work on Old Town chimneys is covered by our 10-year workmanship guarantee.

If your chimney has visible mortar loss, staining on the chimney breast internally, or a pot that looks unstable, call us for a free survey. We cover Church Street, High Street and all of Old Town.