A good number of the established family houses across Bromley Heath still have a chimney stack, whether or not it's actively used for a working fireplace, and dealing with it properly is an important part of any new roof installation. A chimney stack passing through a roof creates one of the most vulnerable junctions on the entire structure, since it's a point where two very different materials, brick or stone and roof covering, have to be sealed together to keep water out, and where movement between the two over time can gradually open up gaps if not properly detailed.
During a new roof installation, the area around the chimney gets particular attention. Old flashing, which is usually formed from lead or a similar material dressed around the base of the stack, is removed along with the rest of the roof covering and replaced entirely rather than reused, since flashing has a shorter working life than the roof covering itself and reusing worn material would undermine the new roof from day one. New lead is carefully dressed and fitted to form a proper weathertight seal between the brickwork and the surrounding tiles or slates, with separate soakers and cover flashings used where the junction demands it.
The stack itself is inspected while the roof is opened up, since this is the easiest opportunity to check the brickwork and pointing without needing separate access later. Where pointing has degraded or brickwork shows signs of frost damage, it makes sense to address this at the same time as the re-roof, since scaffolding is already in place and it avoids paying for separate access at a later date. For chimneys that are no longer in active use, some homeowners in Bromley Heath choose this point to have the stack capped and ventilated rather than removed, keeping the external character of the property while eliminating the risk of an unused flue letting in water or birds. This is often the most cost-effective option where the brickwork itself is still in reasonable condition and only the flue needs addressing.
Where a chimney has deteriorated significantly, or a homeowner simply no longer wants it, full or partial removal is sometimes the more sensible option, and this can be planned into the wider re-roof rather than treated as a separate project. Either way, the decision is best made before work starts, since it affects how the surrounding roof covering and flashing are planned and priced, and changing course partway through can add unnecessary delay and cost.
If your property in Bromley Heath has a chimney stack you're unsure how to handle as part of an upcoming re-roof, Brunel Roofing Bristol can assess its condition alongside the rest of the roof, take you through the options in plain terms, and talk through whether repair, capping or removal makes the most sense before finalising a detailed quote for the work.
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