If your chimney needs rebuilding, understanding what drives the cost helps you compare quotes fairly - Ely Roofers carries out chimney rebuilds in Girton and the surrounding area.
A chimney rebuild means taking a failed or structurally unsound stack down to a sound point above the roofline and building it back up in matching brickwork. The work includes a new damp-proof course (DPC) tray, new lead flashings at the roof junction, and re-bedding or replacing the chimney pot. It is distinct from repointing, which addresses only the mortar joints on an otherwise sound stack.
A rebuild is the right route when the brickwork is spalling severely, the stack has shifted off vertical, or the mortar joints have collapsed over multiple courses. Patching a structurally failed chimney costs money without solving the problem.
Chimney rebuild costs in the UK typically range from around £1,500 to £3,500 for a standard two-storey domestic property. The wide range reflects genuine variation in the scope of work rather than simply differences between contractors. Understanding what puts a job at the lower or upper end of that range helps you judge whether a quote is reasonable.
These figures cover the brickwork, DPC, lead flashings and a new or re-bedded pot. They do not include scaffold hire as a separate item if scaffold is charged separately on the quote, or any internal chimney breast work.
Several factors can move a chimney rebuild toward the higher end of the typical range, or beyond it in some cases.
The taller the property, the more complex and costly the scaffolding. A two-storey house with a standard stack is relatively straightforward to access. A three-storey property, a stack on a steeply pitched roof, or a stack located at the ridge rather than on a gable adds scaffold time and cost. Scaffold is sometimes charged separately from the roofing work itself, so check whether it is included in any quote you receive.
The key question at the inspection stage is how many courses of brickwork are actually sound. On a chimney that has been deteriorating for many years, the damage can extend lower than it looks from the outside. If the roofer has to go further down to reach a stable base, more new brickwork is needed and the cost increases accordingly. A proper roof-level inspection before quoting is essential for this reason.
Matching the existing brickwork closely takes more time and sometimes involves sourcing reclaimed bricks. Reclaimed stock costs more per unit than standard new bricks and takes longer to find. On properties where the existing brick is a distinctive colour or format, this can add noticeably to the material cost. It is the right thing to do for the appearance of the finished stack, but it is a real cost driver.
A chimney stack can contain one flue or several. Larger stacks serving multiple flues are wider, require more brickwork per course, and need more lead at the base for the DPC tray. A large twin-flue or triple-flue stack will cost meaningfully more to rebuild than a single-flue stack of the same height.
If the tiles or slates around the base of the chimney have been disturbed by water ingress from the failed flashings, some of them may need replacing at the same time. This is not always predictable from the ground. The roofer should flag this at the inspection stage and clarify whether any tile or slate replacement is included in the quote.
A straightforward single-flue stack on a standard two-storey house, accessible without complex scaffolding, where the deterioration is limited to the top several courses and the brick can be matched without difficulty - that is the combination of factors that brings a job toward the lower end of the typical range. None of these factors can be assumed in advance; they all need to be confirmed at the inspection.
A quote significantly below £1,500 for a chimney rebuild on a standard property should prompt questions. Common shortcuts that reduce cost but compromise the result include omitting the lead DPC tray, using self-adhesive flashing tape instead of properly dressed lead sheet, using a single mortar coat rather than a properly constructed tray at the base, or failing to source matching bricks and using whatever is available.
Ask any contractor specifically whether the quote includes: a new Code 4 lead DPC tray with stop-ends, full lead flashings on all four sides of the stack including a back gutter, and matching brickwork. A contractor who cannot or will not answer these questions directly is worth approaching with caution.
When comparing quotes for a chimney rebuild in Girton, make sure each quote is for the same scope of work. Two quotes can differ significantly simply because one includes scaffold and the other does not, or one quotes for four courses of new brickwork and another for eight. Ask each contractor to confirm in writing what is and is not included.
A quote that breaks the job into clear line items - scaffold, brick, DPC tray, lead flashings, pot - is much easier to compare than a single lump sum with no detail. It also makes it clear what you are paying for.
We carry out chimney rebuilds in Girton and the surrounding area. If you are trying to get a clear picture of what your chimney rebuild is likely to cost before committing to anything, call us to arrange a proper roof-level inspection.
No obligation · We usually respond within 2 hours
Storm damage, active leak, damaged ridge - we aim to be on-site within 24 hours.
