Chimney Repair Cost

Typical 2026 prices

Most domestic stacks in Buckinghamshire fall into these ranges — scaffold included.

• ▸Flaunching renewal: £350 – £550
• ▸Full repoint of stack: £600 – £950
• ▸Lead flashings renewed (Code 4/5): £550 – £950
• ▸Pot, cowl & cap installation: £200 – £450 per pot
• ▸Partial rebuild (top half): £1,200 – £2,200
• ▸Full rebuild from roof level: £2,400 – £4,500
• ▸Cap off & weather in redundant stack: £900 – £1,800

What drives the price up or down

Two near-identical stacks can quote 40% apart once you account for these — we walk through them on the survey.

• ▸Access: bungalow stacks come in cheaper than two-storey town-house stacks because scaffold is half the cost
• ▸Scaffold reuse: if other roof work is happening, chimney pricing drops because scaffold is already up
• ▸Number of pots: a four-pot stack takes more lead, more flaunching and more time than a single-pot
• ▸Brick match: standard reds and yellows are off-the-shelf; matched handmade or Bucks-area stocks add £150–£400
• ▸Lead grade: Code 4 is standard for soakers, Code 5 for aprons and back-gutters — using Code 5 throughout adds ~£150
• ▸Conservation area: handmade bricks and lime mortar are usually required — adds 15–25% but keeps planning happy

Repoint vs partial rebuild vs full rebuild

Honest decision tree we use on site:

• ▸Pointing receded <10mm, bricks sound → repoint only (£600–£950)
• ▸Top 3–5 courses spalled or pointing gone but base sound → partial rebuild from corbelling up (£1,200–£2,200)
• ▸Stack leaning, stepped cracks through bricks, or >30% of bricks spalled → full rebuild from roof line (£2,400–£4,500)
• ▸Redundant stack (no fire, no flue, no plans) → cap below roof line and weather in (£900–£1,800) — best long-term value

When a rebuild is worth it

If the stack is leaning, has stepped cracks, or the brick faces are spalling badly — repointing won't fix it and you'll be back in a couple of winters. A rebuild done properly should outlive the rest of the roof.

What's included in our chimney quotes

Every chimney quote is itemised so you can see exactly what's covered.

• ▸Scaffold, edge protection, roof ladder
• ▸Take-down to agreed level, set bricks aside for re-use where possible
• ▸New flaunching in 3:1 sand/cement with waterproofer (or NHL3.5 lime in conservation areas)
• ▸New Code 4/5 lead soakers, apron and back-gutter
• ▸New pots bedded in (or existing pots reset)
• ▸Bird cowls / rain caps on request
• ▸Photo handover & 10-year workmanship guarantee

FAQs