Bosham's quayside properties are some of the most atmospheric in the county — and some of the most demanding to roof correctly. The combination of conservation area restrictions, tidal moisture from Bosham Channel, and predominantly flint-built construction requires genuine specialist knowledge.
Bosham's quayside properties are some of the most atmospheric in the county — and some of the most demanding to roof correctly. The combination of conservation area restrictions, tidal moisture from Bosham Channel, and predominantly flint-built construction requires genuine specialist knowledge.
In Bosham, flint-built chimney stacks on quayside cottages with severe tidal moisture exposure; lime mortar essential, lead work to marine spec. Chimney leaks are almost always at the point where the stack meets the tile slope — the flashing — or at the mortar joints in the stack itself. Both are repairable without a full rebuild in most cases.
The most common chimney repair calls in this area: lead flashing replacement or re-dressing, chimney repointing, flaunching renewal (the mortar bed the pot sits in), pot replacement, and stack rebuilds where mortar failure has progressed to the point where the masonry is no longer stable. We assess which category applies at the survey.
Free quote — no call-out fee — Bosham and surrounding area
📞 01243 278085Yes, lime mortar is mandatory for all chimney pointing work in Bosham's conservation area and on listed buildings throughout the village. Portland cement mortar is not acceptable on any historic masonry here.
"Lead flashing had completely failed on the chimney stack. Properly replaced, not just patched. No more damp on the chimney breast inside."
"Repointing in lime mortar as required. They understood the conservation area requirements without needing to be told twice."
"Flaunching replaced and new pots fitted. Neat job, excellent price. Would recommend to anyone in the area."
Bosham is tidal harbour village — the quayside properties are within metres of the water and the salt aerosol concentration here exceeds anything we measure elsewhere in the coverage area. For chimney repairs in Bosham this means lead flashings on Bosham quayside properties oxidise visibly within 5 years without patination oil — the tidal exposure here is categorically different from harbour-adjacent properties a mile inland. The historic quayside cottages and victorian properties around the church are heritage stock requiring conservation-aware materials, while the residential streets further from the water are standard post-war and modern. Marine-spec lead work with patination oil is mandatory on all bosham harbour-edge properties — we do not offer it as optional on these sites.
Chimney repointing in Bosham typically costs £450–£950. Lead flashing replacement runs £350–£750. Full chimney rebuilds — where the stack is beyond repair — are £2,800–£6,500. We quote after a free survey and scaffold assessment where needed.
The most common causes in Bosham are tidal moisture driving under lifted lead flashing on quayside properties, open lime mortar joints in flint-built stacks, and corroded cast iron fixings on listed properties in the conservation area. We diagnose the exact cause at the survey — the visible symptom (damp patch on breast wall) is usually a different location from the actual defect.
Yes, lime mortar is mandatory for all chimney pointing work in Bosham's conservation area and on listed buildings throughout the village. Portland cement mortar is not acceptable on any historic masonry here.
Most chimney problems in Bosham are repairable — repointing, flashing replacement, pot replacement and flaunching renewal cover the majority of cases. A full rebuild is needed when the stack has structural movement, widespread spalling brick or stone, or where mortar failure has progressed to the point where the masonry is no longer stable. We assess this during the survey.
We would recommend a HETAS-registered sweep and inspection before using the fireplace if the chimney has had water ingress. A leaking chimney stack can cause mortar deterioration inside the flue, and wet or softened refractory material is a potential hazard. Get the chimney repaired and swept before lighting the fire.
Annual inspection is the right interval for most Bosham properties — ideally in late summer before the heating season starts. Properties in exposed positions, those with lime mortar stacks, and any chimney that has had previous repair work benefit most from consistent annual checking. We include a chimney condition note in our survey reports.
Minor flaunching repairs and pot replacements can sometimes be done from a cherry picker or long ladder on single-storey elements. Full chimney repointing, lead flashing replacement and any structural work on a standard two-storey Bosham property requires scaffold for safe access and quality of work. Scaffold costs are included in our quotes.
A chimney inspection covers every element that can fail: the flaunching (the mortar bed the pot sits in), the pot condition, the pointing in the main stack body, the lead soakers between each tile course and the stack, the stepped cover flashings on the stack face, the back gutter behind the stack, and the chimney breast internally for evidence of water ingress. In Bosham, where tidal harbour quayside properties with maximum salt aerosol, the failure patterns we typically find depend on the property age — Victorian and Edwardian chimneys present primarily with lead failure and lime mortar deterioration; post-war properties present with failed sand-cement flaunching and inadequate original flashing specification.
Most chimney problems are repairable without a rebuild. Repointing, lead replacement and flaunching renewal cover the vast majority of cases we survey. A rebuild becomes necessary when the stack has structural movement — visible lean or displacement — when spalling has progressed to the point where individual bricks are structurally compromised, or when mortar failure is so comprehensive that the stack is genuinely unstable. We photograph everything at the survey and give you a clear, evidenced view of which category your chimney falls into. We do not recommend rebuilds when repointing is the appropriate response.
Chimney repointing in Bosham typically costs £350 to £900 depending on stack height and extent. Lead flashing set replacement runs £350 to £750. Flaunching renewal and pot replacement costs £200 to £500. Full chimney rebuilds — needed where structural movement has occurred — are £2,500 to £6,000 depending on stack size and height. All costs confirmed in a written itemised quote after a free survey.
Honest pricing from a local Chichester roofer. Call now or request a quote online.
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