Question answered
How much does replacing chimney leadwork cost?
The short answer
MyJobQuote's guide (22/09/26) gives a typical UK range of £150 to £250 to patch chimney leadwork, and £350 to £460 for a full replacement without scaffolding, rising to £700 to £920 with it. Treat them as a national yardstick, not a price for your house. Access, the size of the stack and how much lead has failed decide where a job falls.
Chimney leadwork costs depend mainly on how much of it needs replacing and how hard the stack is to reach. A patch and a full replacement sit a long way apart, and scaffolding can double the second.
The typical ranges, side by side
The figures below come from MyJobQuote's cost guide for replacing leadwork on a chimney, last updated 22/09/26. They are typical UK ranges and not a quote for your house.
| Job | Without scaffold | With scaffold |
|---|---|---|
| Patch repair | £150 to £250 | not given separately |
| Full replacement | £350 to £460 | £700 to £920 |
The gap between the two full-replacement figures is mostly the scaffold. That tells you something useful: on many houses the metal is the lesser part of the outlay, and reaching it safely is the greater.
A patch makes sense when one flashing has lifted or split and the rest is sound, and lead of that age is still worth keeping. A full replacement means the apron, side flashings, back gutter and any saddle are renewed together. Lead flashing repairs explains when each is the right call.
What pushes a job above or below the range
Height and access come first. A bungalow stack reached from a standard ladder sits at the lower end of any guide. A tall chimney on a three-storey house, or one on a side wall with a narrow path, needs more equipment and more time.
Size comes next, and it is measured in flashing length and number of flues. A single stack with one flue is a different task from a wide stack with several pots, or one that straddles a party wall. Longer runs of flashing use more lead, and lead is sold by weight, so thicker codes cost more. Checkatrade lists code 5 flashing at £50 to £70 per metre and stepped flashing at £80 to £120 per metre, excluding VAT.
The state of the stack matters too. Crumbling pointing, a cracked render fillet or loose brick around the lead has to be put right first, or the new lead will sit on a poor base. That is why the survey comes before any price, and why the price covers what the stack needs rather than a standard package.
Scaffolding, licences and VAT
Scaffolding for a chimney is a separate matter from the leadwork. MyBuilder's scaffolding guide gives £400 to £900 for chimney scaffolding, and Checkatrade quotes about £660 per week for a chimney. Those figures show why the with-scaffold range in the table is so much higher.
Where the poles stand on a public pavement, the scaffolders must hold a Highways Act licence, which they apply for themselves. The licence comes from West Sussex County Council, whose page asks for at least 10 working days' notice, so the start date can hang on it.
People often compare quotes without noticing that one includes scaffolding and VAT and another does not. Get each roofer to say, in writing, whether both are in the price. Checkatrade's figures are exclusive of VAT where it says so, and standard-rate VAT is 20%, so a total can rise by a fifth once it is added.
Is it worth patching, or replacing the lot?
If one flashing has lifted and the lead is in good condition, a patch is the right size of job. If lead is cracked in several spots, or the flashings were fixed with mortar fillets, patching adds a new weak point beside the old ones. Replacing the set costs more once and tends to last longer.
MyJobQuote notes that lead flashing can last over 80 years, and over 100 years for higher codes. That is a reason to repair good lead rather than strip it, and a reason to renew worn lead properly when it fails.
Where scaffold is going up for another job, such as repointing the stack or re-bedding the ridge, doing the leadwork at the same time can save a second hire. The front piece is described on lead apron flashings and the top piece on the lead saddle page.
How the price is set for your stack
We look first, and the price follows. The survey covers the lead, the pointing, the stack and the access. Photographs of your own chimney come with the written quote, which is a single total built on your roof, not on national averages. It also shows the access we expect to need, so there is little left to be surprised by on the day.
The aim is a repair that holds. If a patch will do, we recommend it. Should the lead be worn out, we say why patching would only delay the work, with the photographs to show it.
When a stack also needs repointing or rebuilding, MyBuilder gives £500 to £2,000 for chimney repointing and £2,000 to £10,000 or more for a rebuild. Leadwork sits at the cheaper end of chimney work, and fixing it early is often what avoids the bigger bill. For joints on a flat section, see lead rolls and drips, and for a wider view of lead work visit lead roofing.
Chimney lead costs: two more questions
Why can two quotes for one chimney be far apart?
Often one includes scaffolding and the other does not, or one covers a patch and the other the whole set of flashings. VAT can also be left out. Ask each roofer exactly what the total covers before judging them against each other.
Does the lead code change the price much?
Yes, because lead is sold by weight and a higher code is thicker. Leadworx lists code 4 for light and general duty and code 5 for general and vertical work. The survey decides which grade suits your stack and your exposure.
Tell us about your roof
Describe what is happening and we will call you back to arrange a visit.
- Photographs of what we find
- A written quote with one total price
- Or call 01903 299063
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