If your chimney in Soham is leaning, crumbling or has mortar joints that have opened up above the roofline, a full rebuild is the right answer - and choosing the right contractor to do it matters as much as the job itself.
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A chimney rebuild is not a patch-up job. When a chimney has deteriorated beyond what repointing or spot repairs can fix - severe spalling brickwork, collapsed mortar joints, a stack that has shifted from vertical, or brickwork that has broken away entirely - the only lasting solution is to take it down to roof level and rebuild it from scratch.
The work involves removing the existing stack above the roofline, course by course, then rebuilding with matching bricks and properly mixed mortar. New lead flashings are dressed into the brickwork around the base of the stack, and a damp proof course (DPC) is installed to stop water tracking down into the roof structure. The flaunching - the sloped mortar bed at the top that holds the chimney pot - is laid fresh, and the pot itself is reset or replaced if needed.
Done properly, a rebuilt chimney should be stable, watertight and compliant with current building standards. A rebuild typically costs between £1,500 and £3,500 depending on the height and size of the stack, the type of brick needed, and whether scaffold is already in place.
Chimney rebuilds are one of those jobs where cutting corners is invisible from the ground - until the problems come back. Mortar mixed at the wrong ratio, lead flashings tucked rather than properly dressed, or a DPC left out entirely will all cause the same water ingress and structural movement within a few years. By then, the contractor may be long gone.
In Soham, as anywhere, there are roofers who will take on the job cheaply and roofers who will do it correctly. The price difference is real, but so is the difference in outcome. Before you agree to anything, there are straightforward questions that separate a competent contractor from a risky one.
These are not trick questions. A contractor who is good at this work will answer all of them without hesitation.
A price that is significantly lower than every other quote should prompt a question rather than a quick decision. Ask what is different about their approach - it is a fair question and a competent contractor will explain it clearly.
Be cautious of contractors who agree to start immediately without inspecting the chimney from close range. A proper assessment requires getting to roof level, not just looking up from the garden. Any contractor who quotes entirely from the ground is estimating, not pricing the actual job.
Pressure to decide on the day, or offers that expire if you do not commit immediately, are sales tactics rather than signs of a busy, trustworthy business.
The scaffold for a chimney rebuild should be tight to the stack and provide a working platform around it, not just a way of getting to roof height. Brickwork is heavy - old courses need to be lowered safely and new bricks need to be lifted without being dropped. A proper scaffold also protects your roof tiles from damage during the work.
If a contractor proposes to use only a roof ladder and carry bricks by hand, that is not adequate for a full rebuild. It is adequate for minor repointing, but not for removing and replacing a complete stack.
Lead flashings are the waterproof junction between the chimney and the roof slope. There are typically three types on a standard chimney: the apron at the front, the stepped flashings up each side, and the back gutter or soaker at the rear. Each one must be correctly formed and fixed.
Lead used in chimney flashings is classified by code number. Code 4 or code 5 lead is standard for most residential flashings. Ask your contractor which code they are using. Anything thinner than code 4 is undersized for a chimney application and will not last.
Well-fitted lead flashings, dressed correctly into the mortar joints and pointed over with a mortar fillet, should remain watertight for several decades without attention. Poorly fitted ones fail within a few years, usually when frost expands the gap between the lead and the brick.
If you are not sure whether your chimney needs a full rebuild or whether repairs would be adequate, ask a roofer to inspect it from scaffold or a platform lift. A close-up inspection will confirm whether the brickwork has deteriorated structurally or whether the problem is limited to the mortar joints and pointing. That distinction affects both the scope and the cost of the work significantly.
At Ely Roofers we cover Soham and the surrounding area including Ely, Littleport and the villages to the south. Call us to arrange a roof survey so we can give you a proper assessment and a written price before any work is agreed.
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Call any time. Calls are answered day and night and passed straight to our roofers.
