Lead is the oldest roofing metal still in everyday use, and it is priced differently from almost everything else on a roof. You pay for the metal by weight, you pay for a skilled worker to shape and dress it by hand, and you pay for access to the awkward places it is used: behind parapets, down valleys, round chimney stacks. A leadwork quote can therefore look high next to a felt or rubber alternative and still be fair. Below are the price ranges that published cost guides give for lead, a short account of the labour and materials behind them, and a list of the details that push a total up. Every range is national, not a figure from our own price book. Where a job has no sourced figure, we leave the gap rather than invent one, because valleys and gutters are priced by measuring them on site.
Why lead costs what it costs
Sheet lead is sold by its code, a grading of thickness and weight used across the trade. Under BS EN 12588 the codes run from 3 to 8, and each step up is a thicker, heavier sheet. Code 3 is 1.32 mm thick (14.97 kg/m²) and is used for soakers only. Codes 4 and 5, at 1.80 mm and 2.24 mm (20.41 and 25.40 kg/m²), are the working codes for flashings and valleys. Codes 7 and 8 are 3.15 mm and 3.55 mm (35.72 and 40.26 kg/m²) and are listed for pitched valleys, parapet and box gutters, where a gutter has to take a heavy load of water. Those figures come from Leadworx and Royston Lead, which are supplier and manufacturer data, and the code is something your roofer should be able to state for every part of your quote.
Because lead is sold by weight, a thicker code costs more per square metre before anyone has lifted a tool. A long parapet gutter laid in a heavy code carries a lot of metal, and the metal is the part of the bill that follows the commodity market. The remainder is labour, and lead labour is slow by design. Each piece is cut, bossed to shape with hand tools and dressed into the corners of the detail, and joints are made with rolls, drips and welts rather than glue. Nothing about it is quick, and a rushed lead job tends to split where it was stretched.
Lead also asks more of the roof beneath it. It needs a firm, flat, well-fixed deck or substrate, a separating underlay so the metal does not abrade, and joints and falls set out properly. If the boards under an old gutter have rotted, they come out and are renewed before the lead goes back, and that carpentry is a cost line of its own. A quote that prices only the metal is leaving the underlying work for later.
None of this makes lead the right answer for every roof. It makes it a material whose price makes sense once you see what you are getting: a covering with a long recorded life, one that can be repaired and reworked, and that matches the lead already on an older building. We come back to the life question further down.
Typical UK ranges for leadwork
The table below gathers the published figures that exist for lead. They are typical UK ranges reported by MyJobQuote's chimney leadwork guide (updated September 2026) and MyBuilder's flat roof cost guide (2026). Neither guide is about Bath, and neither is an Empire price list.
| Job | Typical UK range |
|---|---|
| Chimney leadwork, patch repair | £150 to £250 |
| Chimney leadwork, full replacement (average) | About £570 |
| Full replacement without scaffold | £350 to £460 |
| Full replacement with scaffold | £700 to £920 |
| Flat lead roof, per m² | £150 to £200 and over |
Whatever the table suggests, the fixed figure for your roof comes after the survey. The two scaffold rows show the largest swing in the table. A stack within reach of a low roof is cheap to reflash, while a tall one rising from a Georgian terrace costs more, and most of the extra is access, not metal.
MyBuilder's chimney repair cost guide (2026) also gives a typical flashing repair figure of £250 to £1,200, which is a wider band because it includes different amounts of stonework and pointing around the flashing. Where the stack itself is damp, loose or open at the joints, the lead is the smaller part of the repair, and the stack comes first. Our guide to chimney repair costs covers that side.
There is no equivalent published figure for lead valleys, parapet gutters or box gutters. Those are measured by length, width, number of drips and ease of access, and the range between a short, easy valley and a long parapet gutter reached across a roof is too wide for a national average to mean anything. If a website quotes you a single price per metre for a parapet gutter, ask what it includes.
Flashings, soakers and chimney work
A flashing is lead folded over a junction so rain cannot get behind it, such as the line where a pitched slope runs into a chimney breast. A soaker is the smaller piece slipped beneath every course of slate or tile along that line and carried a little way up the wall under the flashing above. The two work as a pair, which is why a chimney reflash usually means opening up the courses beside the stack as well as fitting new cover flashings.
The range for a patch repair, £150 to £250 in the MyJobQuote guide, buys a small local fix: re-dressing a lifted flashing, replacing a short length, or renewing a section that has split. It does not buy a new set. A full replacement averages about £570 in the same guide, and that moves up when the stack is wide, has several faces, or sits in a valley between two roofs where there is more lead to cut and dress.
Where the lead is tucked into the stonework, the mortar joint it sits in matters. Cover flashings are normally wedged into a raked-out joint, and the Lead Sheet Association guidance quoted in the conservation literature gives the wedges at a maximum of 500 mm apart. The joint is then repointed. On an older house that should be lime mortar, so the work needs a mason's finish as well as a plumber's, and it is a reason a leadwork price can run above the sheet metal on its own.
Flashings are also where cheap alternatives show up. Self-adhesive flashing tapes and bitumen strips are cheaper to fit, and some have their place as a short-term cover. They do not last as lead does, and on a listed building the visible change may need consent. We deal with the choice in our page on alternatives to lead flashing. For the cost question, the safest comparison is the one over the life of the roof, not the day of the invoice.
Valleys, parapet gutters and box gutters
These are the three leadwork details that most often cause a surprise on an older house, because they are hidden and long. In a valley, two slopes meet in a V and the lead lining takes the run-off of both. The parapet gutter sits behind the stone parapet, the low wall that rises between a Georgian street front and its roof. A box gutter is a rectangular lead trough set between two slopes, or a slope and a wall, with an upstand on each side.
The drivers of cost are the same in each. Length comes first, because lead is measured and laid in runs. Width and depth come next, since the sheet has to be wide enough to turn up both sides of the channel with room to spare. After that come the drips, which are the steps that break a long gutter into shorter lengths so the sheet can move with the weather, and the outlets, where the gutter hands water on to a downpipe or a rainwater head. Each drip and outlet is its own piece of careful work.
The boards under the lead are the other major variable. The gutter bed has to fall towards the outlet. For flat roof surfaces generally, BS 6229:2018 recommends a design fall of 1:40, so that finished falls reach 1:80 after tolerances, as quoted by a manufacturer's guidance note. In a very old gutter the bearers may have settled, and correcting the fall is carpentry that comes before any lead.
Access finishes the picture. A parapet gutter on a street-front roof usually means scaffold, a licence for the pavement, or a lift from the street, and a gutter on the back of a house may be reached only across the roof. Whatever the method, the cost belongs to the job and should be visible on the quote. The way each of these fails has its own write-up, one for parapet gutters and one for box gutters. For one of the larger jobs, see box gutter relining cost.
Lead flat roofs against the alternatives
A lead flat roof is the top of the range, and the published figure shows it. MyBuilder's flat roof cost guide (2026) gives typical UK rates per square metre of £150 to £200 and over for lead. Against that, bitumen felt is £70 to £100, EPDM rubber £90 to £130 and GRP fibreglass £95 to £150. Over the same area, lead is the dearest material in that list, and your quote should make that plain.
The comparison changes when you put years beside the price. Published figures for how long a covering lasts are also typical ranges, and they depend on exposure and workmanship. Less's 2026 flat roof cost guide quotes a lead flat roof at 50 to 100 years, against 10 to 20 years for torch-on felt, while GreenSpec gives EPDM 20 to 30 years and the Building Centre in excess of 25. For lead flashings, MyJobQuote gives over 80 years, and over 100 for the higher codes. Two caveats apply. Those lead figures come from guides that assume correct installation, and they are not a guarantee on any particular roof. And a flat roof of any material fails at its details first, so the life of the roof is the life of its weakest junction.
On a listed building, the question is often not cost but consent. Lead is the traditional covering for many flat and shallow-pitched roofs, and replacing it with a modern membrane changes the appearance and the fabric. We cover the planning side in our guide on flat roofs on listed homes.
Lead is also heavy. A flat roof laid in lead weighs more than one in felt or rubber, so the structure under it has to be sound. A heavier covering is a regulation matter too: the Planning Portal says that a new covering weighing at least 15 per cent more than the existing covering needs building control approval, and the roof frame then has to be checked. That is a point to raise at survey, not discover on the day.
How to compare leadwork quotes
Two quotes for the same lead can sit hundreds of pounds apart without either being wrong, so compare them line by line. These are the points that tell you whether you are comparing like for like.
- Lead code. Every part of the quote should name the code, for example one code for flashings and a heavier one for gutters. A quote that says only "lead" has not told you the weight you are buying.
- What is lifted and what is kept. Does the price include stripping the old lead and taking it away, and does it include the boards under it?
- Access. Scaffold, a tower or a ladder are very different costs, and the quote should say which one applies.
- Mortar and masonry. Chasing, wedging and repointing the stonework at flashings is part of a proper job. A price that leaves it out is cheaper for a reason.
- Falls and drips. For gutters, ask whether the fall is being corrected or the old one reproduced.
We go through these points at the survey, and once we have been up you receive the price in writing, fixed. The visit includes photographs of your own lead, so you can see a split seam, a lifted flashing or a rotten bearer for yourself. Where repair will do the job, we price the repair, and the work we carry out comes with our 10-year workmanship guarantee in writing.
Leadwork bought on price alone can be a false economy, and the cost of a poor job often shows as damp in a ceiling two winters later. If the quote is for a bigger part of the roof, such as a full gutter relining, the job may also trigger Building Regulations or listed building consent, and we explain both and handle the notification where it applies. Our guide to how long lead lasts sets out the lifespan evidence in more detail, and lead patination explains why new lead looks as it does. Our lead roofing service page covers the work as a whole.