Thetford Roofers carries out lead flashing installation and repair in Elmswell, giving homeowners honest information on what the work costs and what affects the final price.
Lead flashings are the strips and sheets of lead that seal the vulnerable junctions on a roof - around chimney stacks, in valleys, at abutments where a roof meets a wall, and around skylights. When these junctions are properly sealed with correctly installed lead, water cannot get through. When the lead fails - through age, poor installation or physical damage - those same junctions become the entry points for leaks.
Lead is also one of the most durable roofing materials available. Properly installed lead flashings typically last 50 years or more before replacement is genuinely needed. Mortar pointing - which holds the top edge of a flashing into brickwork - is the part that needs refreshing more often, usually every 20 to 30 years. Understanding this distinction matters when someone quotes you for work: a full re-lead is not always necessary just because a flashing is leaking.
Lead work pricing depends on four main factors: the type of junction being flashed, the size and complexity of the job, the code (thickness) of lead specified, and access requirements. Below are honest typical ranges for common jobs in the UK at the time of writing. These are guides, not fixed prices - every job should be quoted individually after an inspection.
These figures cover materials and labour. They do not include scaffolding or access equipment, which is a separate and variable cost.
Several factors push the price up from the lower end of these ranges:
Scaffolding is almost always needed for chimney work on a two-storey or taller property. A typical scaffolding hire for a chimney flashing job - erection, hire for the duration of the work, and dismantling - costs in the region of £300 to £700 on its own, depending on the size of the scaffold needed. Some roofers include this in their quote; others quote it separately. Always ask which applies, so you can compare quotes on a like-for-like basis.
Lead sheet comes in different thicknesses, referred to as codes. Code 3 (1.32mm) is used only for soakers. Code 4 (1.8mm) is standard for most chimney and abutment flashings. Code 5 (2.24mm) is used for valleys and box gutters. Code 6 (2.65mm) is used where extra durability is needed in high-wear or high-flow situations. Using the correct code matters - under-specified lead wears through faster. Code 5 costs more than Code 4, which is appropriate for the application, not an upsell.
A simple chimney stack with straight faces and regular brickwork is straightforward to flash. A stack that projects at an angle, has a wider haunch, sits at the ridge (requiring careful back gutter detailing), or is on a steeply pitched roof takes longer and uses more material. Complexity adds cost.
When old lead is stripped back, the condition underneath becomes visible. A failing flashing can hide rot in the underlying board, damaged slates that need replacing, or a valley board that is no longer sound. These are real costs that arise from the condition of the roof, not additions invented to inflate a bill. Ask your roofer to talk you through anything found at strip-out before it is repaired, so you can authorise additional work with your eyes open.
Valleys on a complex roof with multiple pitches, dormers with lead-lined gutters, or box gutters behind parapet walls all require more lead, more time and a higher level of skill to detail correctly. These jobs sit at the top of the price range.
Not every lead job requires a full strip and replacement. These situations can reduce the cost significantly:
The key is an accurate inspection before any quote is given. A roofer who quotes without looking at the job properly is guessing.
A clear quote should specify which sections of lead are being replaced, what code of lead is being used, whether scaffolding is included, whether pointing is included, and what happens if additional work is found at strip-out. If a quote is a single lump sum with no breakdown, ask for the detail. It helps you compare quotes properly and gives you a record of what was agreed.
Be cautious of a very low quote that does not mention access. Working on a chimney from a ladder without a scaffold tower is not safe practice for this type of job, and if the access is not priced, either the roofer is planning to cut corners or the cost will appear as a surprise addition later.
If any of the following apply, it is worth having the lead inspected:
A common pattern is flashing that has been re-pointed repeatedly over the years without the underlying lead ever being replaced or properly assessed. Eventually pointing alone stops working and the job requires the full treatment.
We work from our Thetford base and carry out lead work in Elmswell and the surrounding area. We also cover Bury St Edmunds, Attleborough, Watton, Mildenhall, Brandon, Mundford, Barnham, Methwold, Kilverstone, Elveden, East Wretham, Croxton, Brettenham and the villages nearby. If you want to know whether we cover your postcode, call us and we will confirm.
If you have a leaking chimney, a damp patch under a valley, or flashings that have not been checked in years, call Thetford Roofers and ask for a roof survey. We will inspect the lead, tell you honestly what it needs, and give you a clear quote broken down by what each part of the job involves.
No obligation · We usually respond within 2 hours
Storm damage, active leak, damaged ridge - we aim to be on-site within 24 hours.
