If you are trying to work out what a chimney rebuild in Fulbourn is likely to cost and what affects the price, this page sets out what you need to know before asking for quotes.
A chimney rebuild in a typical UK home costs roughly £1,500 to £4,000 for the complete job including scaffold. That is a wide range, and the gap between the low and high end is not about profit margins - it reflects genuine differences in the scope of work, the height and complexity of the stack, the materials needed, and the condition of the lead flashing. Understanding what drives the price up or down helps you assess quotes properly and avoid paying for work you do not need or missing work that is genuinely required.
Scaffold typically accounts for £400 to £900 of the total cost of a chimney rebuild, depending on the height of the property, the pitch of the roof, and how long the scaffold is in place. This is not a cost that can reasonably be cut. A chimney stack sits above ridge level and the only way to work on it safely and to a proper standard is from a fixed platform. Any quote that does not include scaffold for a chimney rebuild should prompt a direct question about how the work is to be done.
Scaffold hire is charged by the week in most cases. On a straightforward single-stack rebuild on a two-storey property, the scaffold might be up for three to five days. On a complex job with multiple stacks or a very tall property, the hire period extends and the cost increases accordingly.
The number of brick courses that need to come down and be relaid has a direct effect on cost. Labour and material are both priced per course. A stack where only the top four or five courses above the haunching have failed - common where the rest of the pointing is still sound - costs significantly less than one where ten or more courses have been compromised by years of water ingress and frost action.
The number of courses that genuinely need replacing can only be confirmed once scaffold is up and the stack is inspected at close quarters. A roofer quoting a precise number of courses from the ground is guessing, and if that guess is too low the price will increase once work starts. Build some flexibility into your budget for this possibility, particularly on an older stack that has not been maintained for many years.
Lead flashing - the seal between the chimney and the roof slope - is often found to be in poor condition at the same time as the stack itself is failing. Water gets in through the stack, through the flashing, or through both. Where the existing lead is in sound condition it can be redressed and repointed, which adds little to the cost. Where it needs replacing, the cost of new code 4 or code 5 lead sheet is added to the total.
New lead flashing for a standard domestic chimney costs roughly £300 to £700 depending on the size of the stack and how many faces require new lead. A chimney that requires a full back gutter, two side step flashings, and a front apron - all in new lead - sits at the higher end of that range. Replacing the lead at the same time as the rebuild, while the scaffold is already up, is almost always more economical than doing it as a separate job later.
A wide double stack serving two separate flues costs more to rebuild than a single narrow stack for one reason: there is more brickwork to lay, more material to supply, and more time on the platform. Two pots mean two flaunching applications and potentially two pot replacements. The per-course cost stays roughly the same; the total cost increases with volume.
The pot itself, if it needs replacing, adds roughly £50 to £150 to the materials cost for a standard terracotta pot. A larger or ornate pot costs more. If you have an unusual or decorative pot that you want to retain, tell the roofer at the outset so it can be carefully removed rather than broken during the strip-down.
For older properties, a lime-based mortar is the correct choice and it costs slightly more than standard sand-cement. The difference is not large - typically £50 to £150 on a standard rebuild - but it matters for the longevity of the work. Using a hard cement mortar on soft older brickwork transfers stress into the brick face and causes spalling, meaning the work fails prematurely. The slightly higher material cost of a correctly matched mortar is worth it.
Reclaimed bricks are often cheaper to buy than new facing bricks but may cost more in labour time to sort and check. New matching bricks are consistent but can be hard to match precisely to older stocks. Neither option is always cheaper overall - it depends on availability and what the roofer can source locally.
When asking for quotes, make sure each roofer specifies the number of courses to be replaced, whether lead flashing is included, what mortar type will be used, and whether scaffold is included in the price. A quote that lacks this detail is difficult to compare with one that spells everything out. The lowest price is not always the best value if it is based on fewer courses or cheaper materials than the job actually requires.
A chimney rebuild in Fulbourn costs roughly £1,500 to £4,000 for most domestic stacks, with scaffold included. Work carried out without scaffold, or quoted on the basis of a ground-level inspection alone, carries a real risk of either underpriced work or undiscovered problems left in place.
We carry out chimney rebuilds in Fulbourn and the surrounding area, including nearby Cambridge, Newmarket, Burwell, and neighbouring villages. If you would like a proper assessment of your stack, call us to arrange a roof survey from scaffold so we can give you an accurate and fully itemised picture of what is needed.
No obligation · We usually respond within 2 hours
Storm damage, active leak, damaged ridge - we aim to be on-site within 24 hours.
