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Lead Work

Lead Work

Lead work is one of the most demanding roofing skills — done poorly, it fails within a few years. We handle flashings, valleys, flat roofs, and all lead detailing on properties across Diss and South Norfolk.

Image: local lead work

What's involved

Lead Work in your area

Lead is used wherever a roof meets a wall, chimney, skylight, or changes pitch — flashings, valleys, parapet gutters, and small flat roof sections all rely on correctly dressed lead to stay watertight. When lead work is poorly fitted or starts to lift and crack with age, water tracks straight into the roof structure below. It's one of the most common hidden causes of ceiling damp in older properties around Diss.

The work involves cutting and dressing lead sheet to the correct code — Code 3 for flashings, Code 4 or 5 for valleys and flat areas — and fixing it with the proper clips and fixings to allow for thermal movement. Lead expands and contracts significantly with temperature change, so if it's fitted too rigidly or in oversized sheets, it splits. We use traditional bossing and welding techniques where the job requires it, and always step-flash chimneys correctly rather than simply pointing over the lead with mortar, which is a common bodged repair that fails within a few seasons.

Lead work requires experience and patience to get right. A short-cut repair — lead stuck down with mastic or mortar slapped over a gap — will hold for a year or two before the water comes back. Correct leadwork, properly fixed and dressed, should last 50 to 80 years.

When we quote for lead work, we strip out the failed section, inspect the substrate and any timber beneath, and dress new lead to the correct code and dimensions. We'll take photos throughout so you can see exactly what was done. All our lead work is guaranteed for ten years.

Lead flashing replacement on a chimney stack in Diss typically costs between £250 and £600, depending on the size of the stack and the extent of the lead required.

Itemised quote
Materials, labour, scaffold broken out
Fixed start date
With a daily schedule
Fully insured
£5m public liability

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Questions

What people ask first.

A new pitched roof on a standard three-bedroom detached house in Diss typically costs between £6,000 and £10,000, depending on the tile or slate chosen and the complexity of the roof shape. Hipped roofs and those with multiple valleys or dormers cost more than a simple gable pitch. We provide a fixed written quote before work begins so there are no surprises.
If you're having tiles repaired or replaced more than once every couple of years, or if your roofing felt is more than thirty years old, a full replacement is usually the more economical choice. Signs like sagging roof lines, widespread moss and lichen penetrating the tile surface, or persistent damp patches inside the loft after rain all suggest the roof structure and underlay are failing. We'll give you an honest assessment after a survey.
Replacing a single broken or slipped tile typically costs between £150 and £350 including materials and call-out. Repointing a full run of ridge tiles on a semi-detached house usually falls between £300 and £800. Renewing lead flashings around a chimney stack generally costs £400 to £900 depending on the size of the stack and complexity of the detail. We quote in writing before starting any work.
GRP fibreglass flat roof replacement in Diss typically costs between £70 and £120 per square metre, including stripping the old covering and making good any soft or damaged decking. A standard single-storey rear extension roof of around 20 square metres would therefore cost roughly £1,400 to £2,400. EPDM rubber systems are usually slightly lower in material cost but comparable overall. We provide a fixed price in writing after surveying the roof.
For a standard three-bedroom semi-detached home in Diss, fascia and soffit replacement typically costs between £900 and £2,200. The price depends on the total length of roofline, whether the rafter feet need any remedial work, and the type of material used. We provide a written, itemised quote before any work begins.
Lead flashing replacement on a chimney stack in Diss typically costs between £250 and £600, depending on the number of sides and the amount of lead required. Valley lead replacement on a standard pitched roof is usually between £400 and £900. We'll give you a fixed price after inspecting the work.
A full chimney rebuild in Diss typically costs between £1,500 and £3,500, depending on the height and condition of the stack, the number of flues, and whether new lead flashing and pots are required. Scaffold is usually included in the price. We'll give you a fixed written quote after inspecting from scaffold level.
Chimney take-down and roof make-good in Diss typically costs between £800 and £2,000. The price depends on the height of the stack, the type of roof covering, and whether any internal chimney breast work is involved. Scaffold is included in our price. We'll quote in writing after inspecting the job.
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