Many of the older properties around Barton Hill still have a chimney stack, even where it's no longer connected to a working fireplace, and it's a detail that's easy to overlook when planning a roof replacement. If the chimney needs attention, timing that work alongside the re-roof is almost always the more sensible approach, both practically and financially, and it avoids the awkward situation of finishing a brand-new roof only to discover the chimney needs scaffolding again a year or two later.
The main reason is access. Once scaffolding is up and the roof covering around the chimney has been stripped back, the stack is fully exposed in a way it simply isn't during normal maintenance. Repointing brickwork, rebuilding a deteriorating stack, fitting a new chimney cap, or replacing a cracked chimney pot can all be done efficiently at this stage without the added cost of arranging separate access later. Leaving chimney work for another time usually means paying for scaffolding twice, on top of the disruption of having contractors back on site for a job that could easily have been folded into the original works.
There's also a performance reason to combine the two jobs. The junction between a chimney and the roof is one of the most common places for leaks to develop, because it relies on properly formed lead flashing tying the stack into the new roof covering correctly. If the chimney brickwork is unstable or the stack has movement, that flashing has nothing solid to key into, and problems can reappear quickly. Addressing the stack's condition before the new flashing goes on gives the whole junction a much better chance of staying watertight for years.
For homeowners in Barton Hill with an older chimney, it's worth having it inspected as part of the initial roof survey rather than waiting for a problem to appear separately. Even where the stack is structurally sound, this is a good opportunity to have pointing refreshed and a pot or cap replaced if it's showing its age, since the cost of doing so alongside the main roofing work is modest compared with a standalone chimney job.
Redundant chimneys, ones no longer connected to a working fire, deserve particular thought during a re-roof. Rather than leaving an unused stack to slowly deteriorate, options such as fitting a proper capping with ventilation to prevent damp building up inside the flue, or in some cases removing a stack below roof level entirely, can be discussed while the roof is already open. Either approach, done at the same time as the main works, avoids the stack becoming a future source of damp or falling debris that would otherwise need addressing on its own later.
When Brunel Roofing Bristol surveys a roof with a chimney in place, we'll always flag its condition and talk through whether any work is worth including before the new roof goes on, so get in touch to arrange a full inspection and quote.
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