Lead is taken from roofs because it is heavy, valuable as scrap and quick to peel off a flat or low-pitched roof when nobody is watching. The thief wants minutes, not hours, so the aim of prevention is to add effort and risk until the roof stops looking like an easy job. The aim of the recovery is different: stop the water, record the damage, and choose a replacement that suits the building. This guide covers both halves. It starts with how thieves reach a roof and what actually deters them, then sets out what to do when the lead has already gone, and finishes with the replacement choices for an unlisted building, including lead itself, lead-free flashing and other metals. Typical UK costs are quoted where a sourced figure exists. Your own price follows a survey, because the answer depends on how much lead went, where it sat and what is underneath it.
Why lead is targeted and which roofs are exposed
Lead sheet has a scrap value that few other roofing materials share, and it is easy to carry once it is rolled. That is the whole of the appeal. Thieves do not need tools beyond a knife and a bar, and a quiet roof out of sight of the road is as good as a workshop to them.
Some parts of a building are more exposed than others. Think about how someone would reach each one.
- Flat roofs and low extensions. A lead-covered flat roof over a rear extension or garage can be reached from a garden wall, a shed or a bin. The sheet is large, in one piece, and can be lifted from the edge.
- Porch and bay roofs. These are low, often at first-floor height, and the lead on them is easy to see from the ground. Our page on lead on bay roofs looks at them closely.
- Parapet and box gutters. Parapet gutters run along the base of a parapet wall; box gutters are the same idea, a sheet-lined trough, but set between slopes or hard against a parapet. Both are hidden from the street, which cuts both ways: nobody sees a thief up there, but the thief first has to get over the parapet.
- Flashings and soakers. Flashings are lead strips bent over the point where roof meets chimney or wall. Soakers are the little lead pieces interleaved with the tiles or slates beside that junction. Both are smaller and harder to strip, but they can still be pulled from an empty or neglected building.
- Empty buildings and sites. Properties between tenants, buildings awaiting sale, churches and outbuildings with nobody on site are the usual victims.
Notice what the list has in common. It is access and lack of observation, not the age of the lead or the quality of the roof. A well-laid roof on a building with a ladder-friendly wall is a bigger risk than a tired roof on a house that is overlooked from all sides.
Deterrents that make a real difference
No single measure stops a determined thief, but a roof that combines several of them looks like more trouble than the next one along. Work from the outside in.
Take away the way up
Look at your building the way a thief would. Where does the first foothold come from? Drainpipes, water butts, wheelie bins, sheds, flat-roofed garages and climbing plants all provide steps. Move what can be moved, fit a cover or guard to what cannot, and consider anti-climb paint on a pipe or wall top,. It is cheap, and it stops the quick approach.
Light, sight and sound
Movement-sensitive lighting at the rear of a building makes a roof edge visible. A camera aimed at the approach, not at the roof, gives you something to hand to the police. A roof alarm with a detector on the lead itself is available for buildings that are at higher risk. In a block of flats, or beside a shop unit, a neighbour who knows who should and should not be on the roof is worth more than a gadget.
Mark the lead
Forensic marking, in which a coded liquid is applied to the sheet, and postcode stamping both let the police link recovered lead to the roof it came from. A buyer of scrap is also less keen on lead that is visibly marked. Ask your roofer to apply the marking when the lead is laid, or have it done on existing lead after a survey.
Fix it well
Lead that is clipped and fixed properly is harder to peel. A cover flashing wedged into a wall joint and clipped at close intervals resists a lift better than one held by a few nails. If the roof is being relaid anyway, a secure clipping pattern costs little extra. On a flat roof, a heavy sheet fastened at the edges is a slower job for a thief than a loose one.
What to do when the lead has already gone
The first hour is about water, not blame. A roof with its lead gone takes in rain, and the damage that follows can cost more than the metal. Work through these steps in order.
- Keep people safe. Stay off the roof. A flat roof with no lead may have a deck that is wet, rotten or unsupported at the edges.
- Call the police and get a crime reference. You will need it for any insurance claim, and the report helps them link thefts in an area.
- Take photographs from the ground and, if you can do so safely, from a window. Include the bare deck, the missing lengths and any marks on the walls or gutters. Date them.
- Tell your insurer promptly. Read the policy for any wording on unoccupied buildings or on forced entry. Our page on stolen lead and insurance goes through what to expect.
- Get the roof covered. A temporary cover is a make-safe, not a repair. Leaks come first with us, and a roof taking in water is made safe before anyone discusses permanent work.
Insurers differ, and a claim is never certain. The Financial Ombudsman and Which? both publish guidance on how storm and theft claims are treated, and a roofer's written report with photographs is the sort of evidence that helps. The claim itself sits between you and your insurer. We can write up, in ordinary language, what is missing and what the repair involves.
Once the roof is safe, the real survey can start. Water that has run in through an open roof can wet insulation, ceilings and the timbers under the deck. We lift a section of the deck edge, look at the joists and the underside for rot, and take pictures of the findings so the repair follows the roof in front of us, not the one that existed before the thieves came.
Replacing the lead: the options on a non-listed roof
Where a building carries no listing, the choice is wider than most owners expect. The decision is a balance of cost, appearance, how likely a repeat theft is, and what the building can accept. The main options are set out below.
| Option | What it is | Weighing it up |
|---|---|---|
| New lead sheet | Rolled lead laid to the original detail, with rolls, drips and clips | Matches the building and lasts the longest, but the scrap value remains. Marking and good fixing help. |
| GRP (glass-reinforced plastic) | Resin and glass matting built up in place over the deck | No scrap value and jointless over a flat deck. Less forgiving of movement at edges. |
| EPDM | A synthetic rubber membrane, usually laid in one sheet | No scrap value, a good fit for a flat roof of simple shape. |
| Lead-free flashing | Self-adhesive or bituminous strips, or a rigid metal flashing | Works at chimneys and abutments where it is hidden. Less convincing as a visible detail. |
| Zinc or copper | Sheet metals laid with standing seams or rolls | Long lives, but copper too has scrap value and is a target. |
Our separate guide on lead alternatives compared sets out where each substitute is acceptable and where it is not. Here is the short list of things to weigh for a theft replacement.
- Is the roof visible? A lead-effect finish matters on a front bay or a prominent porch. It matters much less on a rear flat roof.
- Is the roof likely to be hit again? A substitute with no scrap value removes the reason to climb up. That can be the deciding factor on an empty building or an exposed outbuilding.
- What is the roof's shape? Complex junctions, chimneys and curved bays favour lead, which can be dressed to any form. A plain rectangle suits a membrane.
- Is the building in a conservation area? Where the building stands inside the conservation area, talk to B&NES planning about any visible change of material before you order anything.
Typical costs for replacing stolen lead
Treat the figures below as national guide prices from published sources, not as Empire prices. The lead figures come from MyJobQuote's guide to chimney leadwork (September 2026), and the per square metre rates from MyBuilder's flat roof cost guide (2026).
| Item | Reported range |
|---|---|
| Chimney leadwork, patch repair | £150 to £250 |
| Chimney leadwork, full replacement | About £570 on average |
| Lead flat roof, per m² | £150 to £200 or more |
| GRP flat roof, per m² | £95 to £150 |
| EPDM flat roof, per m² | £90 to £130 |
The chimney figure rises to roughly £700 to £920 with scaffold and falls to roughly £350 to £460 without, as the same guide reports. Your fixed quote follows the survey.
Two things push a theft replacement above the table. The first is damage below the lead: a wet deck, rotten joists or wet insulation have to be put right before anything is laid on top. The second is access. A box gutter between two high roofs may need scaffold, and the scaffold can cost as much as part of the metalwork. Our written quote shows each as its own line, which lets you set it beside any other quote and see the cost of the roof apart from the cost of reaching it.
The difference between lead and a substitute is also narrower than the per square metre figures suggest. A cheaper membrane may need replacing sooner than lead, which MyJobQuote reports lasting over 80 years when correctly installed. Comparing cost across the whole working life is fair, provided the substitute really suits the position.
Lead is only one part of a theft: what else to check
Thieves are not careful. When lead is torn from a roof, the metal is not the only thing that suffers. Check the following before you sign off the repair.
- The deck. Boards are often split or lifted where lead has been ripped up, and nail heads may be left standing proud. A new covering over a damaged deck will fail early.
- The tiles and slates beside the lead. Soakers and flashings run under the covering, and pulling them out often cracks or slips the tiles and slates alongside. They need to be reset or replaced.
- The brickwork and stone. A chimney or parapet may have been disturbed. Loose stone or a cracked joint is an obvious route for water.
- The gutters. Cast iron or aluminium gutters are sometimes stripped or bent in the same attack, and a lead-lined gutter may have been taken in one piece.
- The ceiling below. Look for damp patches and staining. If a ceiling has been wet for several days, the plaster and insulation need to dry out before they are covered over.
Every one of these costs less to fix with the roof already stripped than on a second visit. If you are comparing quotes after a theft, ask each roofer to say what they have checked besides the lead, and to describe what they will do if they find damage beneath it. Lead that has been replaced over rotten timber is a repair that will have to be repeated.
You may also wonder about the health side of handling old lead. Our short page on whether roof lead is dangerous covers that.
Making the new roof harder to steal from
Replacing lead without changing anything about how it is protected invites a second visit. When a roof has been hit once, it is worth treating the repair as a chance to fix the reasons it was chosen.
Start with the way up. The same wall, bin or pipe that helped last time will help again unless it is dealt with. Next, choose the covering with the risk in mind. If the roof is visible and needs the look of lead, use lead and mark it. If it is a hidden flat roof that no one notices from the street, a membrane or GRP removes the scrap value completely.
Fixing detail matters too. Lead laid in short lengths, with proper drips and rolls and clipped at the edges, is a slower job for a thief than a big sheet on loose fixings. Your roofer chooses the lead code (the grade of sheet thickness) to suit each position. A heavier code is no harder to carry off, but it wears better in service.
Finally, keep an eye on the building; our wider lead roofing service page covers the repair side of the same work. Empty properties are checked more often by thieves than by owners. Ask a neighbour to look at the roof when they pass, and tell them to ring the police rather than the roofer if they see someone on it. If you own a block or a commercial unit, a regular roof inspection also tells you at once when something has changed.
Before anyone climbs up, photograph the bare battens, the torn edges where lead was cut and any marks on the gutter, because your insurer will want them dated. We visit, take pictures of your own roof, write up the options, and fix a price once the scope is agreed. If a repair will hold, that comes first; where a different covering is the better answer, we explain the reasoning. Ring 01225 285181, send a WhatsApp message or use the enquiry form, and tell us what has gone and from where.