Chimney Repairs Combe Down

Bath oolite limestone throughout Combe Down requires NHL 2 lime mortar for all chimney repointing. Cement mortar causes spalling on Bath stone. Lead flashing failure on exposed south-west-facing chimney faces is more common here than at sheltered locations.

We cover Combe Down as part of our core Bath service area with no additional call-out charges. All work is carried out by our own team — no subcontractors. Free assessment, honest written quote before any work starts.

Local Housing Profile

Combe Down housing is predominantly stone quarrymen's cottages (pre-1900) and victorian/edwardian terraces, with welsh slate and clay peg tile on period stock as the dominant roofing material on period stock. The most common issues in this area are ridge failure on exposed elevations, Bath oolite requires lime mortar, frost cycling on flat roofs. We carry the appropriate materials for all Combe Down property types on every vehicle.

Our Process in Combe Down

Every chimney repairs job in Combe Down starts with a free physical assessment. We inspect the full roof condition, not just the reported problem, and provide a written fixed price before any work starts. Materials for the most common Combe Down repair types are on all vehicles. Most Combe Down jobs are completed in a single visit without scaffold.

Survey — All Four Faces

Every chimney repair starts with a complete inspection of the stack from all accessible angles. The street-facing chimney face is rarely the only one with problems — north-facing and rear faces frequently show more advanced mortar deterioration than the visible front elevation. We use a pole camera or elevated access for stacks where ladder inspection is not sufficient to confirm the rear face condition. The written quote covers the full stack, not just the visible face.

Mortar Specification by Masonry Type

The single most important technical decision in chimney repointing is the mortar specification. Stone properties require lime mortar — NHL 2 for soft limestone and Bath stone, NHL 3.5 for harder limestone and traditional brick. Post-war dense brick uses flexible cement mortar. Using the wrong mortar is irreversible without stripping the joint back out entirely, which adds cost and disturbs the surrounding masonry. We identify the masonry type on every job before any mortar is mixed.

After the Work — What the Finished Job Looks Like

A correctly completed chimney repoint shows no mortar smear on the face of the stone or brick, clean joints struck to match the original profile, and flaunching around pot bases that is smooth with no cracking. Flashings at the base are dressed tight with no visible gaps. If the mortar colour doesn't match the original, ask before the work starts — we mix to match using iron oxide pigments on conservation area properties.

Bath Oolite and the Lime Mortar Imperative

Combe Down's quarrymen's cottages are built from local Bath oolite — the same stone that supplied much of Georgian Bath. Bath oolite is soft (approximately 40 MPa compressive strength) and requires lime mortar with a strength below the stone's own strength to avoid damaging the adjacent masonry through differential thermal movement. We use NHL 2 lime mortar on all Combe Down oolite properties — NHL 3.5 is used only where the stone is confirmed as harder local limestone rather than oolite. The mortar specification is confirmed at the survey stage before any work starts.

Free assessments available across Bath and all surrounding Somerset and Wiltshire areas. We cover the full BA1, BA2, BA3, BS31, BA11, BA14, BA15, SN12, SN13 and SN14 postcodes. All assessments include a written condition report and a fixed-price quote before any work starts. No call-out fee. 10-year workmanship guarantee. NFRC registered and fully insured. Call 0122 528 7924 to arrange a survey within 2 to 5 working days, or for emergency attendance within 60 to 90 minutes. Our own team carries out all work — no subcontractors, no third-party lead generation. The roofer who surveys your property is the same team who completes the job.