Loose, split or lifted lead
Visible movement, splits or damage in the apron, stepped side flashing or back-gutter detail can justify closer inspection.
Chimney flashing and roof leadwork
Chimney Flashing, Repairs & Roof Leadwork
Assessment and repair of lead flashing at chimney and roof junctions, together with verified pointing, flaunching and chimney-stack repair enquiries.
Emergency water ingress or storm damage should use the dedicated Emergency Roof Repairs pathway. This page covers scheduled chimney and roofing-leadwork enquiries; inspection is required to distinguish defective flashing, pointing, masonry, roof covering or other possible causes.
Skycraft trust signals
- 20+ years’ roofing experience
- Fully insured
- Workmanship guarantees available
Chimney and leadwork overview
Start with the chimney-to-roof junction
Chimney flashing protects the junction where a stack passes through the roof. Lead is commonly formed into stepped side pieces, an apron at the lower edge and a back-gutter detail behind the chimney so water can continue over and around the junction.
A damp mark near a chimney does not automatically prove that the lead has failed. The flashing, pointing, masonry, surrounding tiles or slates, roof junctions and likely water paths need to be considered before a chimney flashing repair or wider scope is recommended.
Skycraft does not service gas appliances, flues or combustion systems. Where a chimney is connected to a gas appliance or flue, an appropriately qualified specialist may also be required alongside any roofing or masonry work.
Warning signs
Signs a chimney or flashing needs attention
A visible symptom is a useful starting point, but it does not confirm the cause — inspection identifies the actual defect and its extent.
Damp or staining near the chimney
Internal staining is a useful symptom to report, but water may travel from flashing, masonry, pointing or the adjoining roof covering.
Weathered mortar joints
Eroded or cracked pointing can affect the stack independently of the flashing and may need a separate repair scope.
Damaged brickwork or flaunching
Loose or damaged bricks and defects in the mortar around chimney pots require assessment as chimney-stack issues rather than assumed flashing failures.
Damage after severe weather
Displaced flashing, masonry or surrounding roof coverings should be checked together because more than one detail may have been affected.
Defects at another roof junction
Abutments, valleys and penetrations can also require lead work in roofing, even where no chimney is involved.
Leadwork detail
Roof and Chimney Leadwork Detail
Two further photographs showing lead flashing detail at a roof-to-wall abutment, illustrating the standard of leadwork shown in the overview above.
Chimney and leadwork scope
Brickwork, pointing, flashing and roof leadwork
The appropriate scope depends on inspection, access and the condition of the chimney, flashing and surrounding roof.
Chimney-stack repairs
Verified enquiries include local chimney brickwork repairs, repointing and flaunching defects, subject to the condition found and safe access.
Pointing and mortar deterioration
Weathered or deteriorated mortar joints can be assessed for local repointing independently of the lead flashing.
Chimney lead flashing
Targeted repair or wider renewal can cover stepped side flashing, apron flashing and back-gutter details around the stack.
General roof leadwork
Roof flashing beyond the chimney can include leadwork at abutments, upstands and other roof junctions where the construction is confirmed.
Chimney-related water ingress assessment
The assessment considers flashing, pointing, masonry, adjoining coverings, junctions and likely water paths before a repair is proposed.
Inspection and quotation
Inspection and quotation process
Inspection identifies the actual cause — flashing, pointing, masonry, roof covering or another source — before a quotation is provided.
Describe the issue
Share the property location, visible symptoms and when the problem was first noticed.
Plan the assessment
Consider access, chimney height, scaffolding needs and any connected roof details.
Establish the scope
Distinguish a local repair from wider brickwork, flashing or roof-leadwork work before defining the work.
Provide a quotation
A quotation follows the assessment, based on the scope, access and materials identified.
Chimney and leadwork cost
What affects the cost of chimney and leadwork work?
A reliable figure depends on the property and the work identified. No fixed range can account for every chimney or roofline.
Chimney height and access
Chimney height, roof pitch and site constraints affect the access and scaffolding needed.
Extent of brickwork or pointing work
Whether local pointing or brickwork repair is suitable, or wider masonry concerns require separate assessment.
Existing lead and junction details
The condition of existing lead, fixings, mortar joints and the complexity of the apron, stepped sides and back gutter affect the work required.
Chimney condition
The overall condition of the stack, crown/flaunching and surrounding masonry.
Roof leadwork extent
The extent of any additional roof leadwork beyond the chimney itself.
Specialist involvement
Whether an appropriately qualified specialist is also needed, for example where a gas appliance or flue is connected.
Repair or renew?
Targeted flashing repair or wider leadwork renewal
The decision should follow inspection of the chimney, flashing and surrounding roof.
Localised repair
A targeted chimney flashing repair may be appropriate where damage is localised and the surrounding lead, mortar, masonry and roof covering remain suitable.
Wider renewal or specialist assessment
Wider leadwork renewal may be considered where several details have failed or existing lead cannot support a durable local repair. Apparent structural movement requires appropriate assessment before work is defined.
The quotation should separate flashing work from any pointing, masonry, flaunching or surrounding roof repairs identified during assessment.
Geographic coverage
Regional chimney and leadwork enquiries
From its West Drayton business base, Skycraft handles chimney flashing, stack-repair and roofing-leadwork enquiries across Surrey, Greater London and surrounding areas. The location pages provide the appropriate route for local coverage information.
Suitable planned chimney or leadwork projects can also be considered more widely. Emergency water ingress or storm damage should use the Emergency Roof Repairs pathway, subject to current availability and safe access.
Chimney and leadwork evidence
Relevant chimney and leadwork projects
These genuine records retain their documented locations and evidence boundaries; they are not used to diagnose another property or promise the same repair scope.
Chimney Repairs and Leadwork in Epsom
A genuine Skycraft Roofers chimney repair and leadwork project in Epsom, Surrey, documenting an existing flashing condition and newly installed lead step flashing at a chimney and roof junction.
View projectLead Flashing Project in West Drayton
A genuine Skycraft Roofers leadwork project in West Drayton, documenting visible lead step flashing at a pitched porch roof and wall junction.
View projectChimney Repointing and Pot Closure in Harrow, Greater London
Chimney repointing and closure of the chimney pot from the top, carried out on a house in Harrow, Greater London.
View projectParapet Capstone and Lead Flashing in Morden, Greater London
A new capstone was fixed to a parapet wall in Morden, Greater London, the wall was rendered and lead flashing was installed on the wall.
View projectRelated roofing routes
Continue with the service that matches the requirement
Roof RepairsFor a general, non-chimney roof repair or leak enquiry.Emergency Roof RepairsFor emergency water ingress or storm damage that needs urgent attention.New Roofs & Re-roofingFor pitched roof replacement and re-roofing enquiries.Flat RoofingFor work focused on a flat-roof system, installation or system-specific defect.
Related service areas
Continue with relevant location information
Frequently asked questions
Chimney and leadwork enquiries
What does chimney flashing do?
Chimney flashing helps direct rainwater over and around the junction between the stack and roof. The detail can include stepped side flashing, a lower apron and a back gutter behind the chimney.
Can damaged chimney flashing be repaired?
A local chimney flashing repair may be appropriate where damage is limited and the adjoining lead, mortar and roof covering remain suitable. Wider renewal is considered where the existing detail has deteriorated more broadly.
How can I tell whether a chimney leak comes from flashing?
An internal damp mark does not identify the entry point by itself. Assessment considers the flashing, pointing, masonry, roof covering, junctions and likely water path before the cause and repair scope are defined.
Does Skycraft undertake chimney-stack repairs?
Verified enquiries include local brickwork repairs, repointing and flaunching defects, subject to inspection and safe access. Apparent structural movement or work outside that scope requires appropriate specialist assessment.
What affects the cost of chimney leadwork?
Cost depends on roof height and access, scaffolding needs, the condition and extent of existing lead, the junction details, adjoining masonry and roof coverings, and whether local repair or wider renewal is appropriate.
What information should I provide for a quotation?
Share the property location, visible symptoms, when they occur, the part of the chimney or roof junction involved and any safe photographs of the affected area. This supports assessment planning but does not replace inspection.
Start an enquiry
Describe the chimney or leadwork issue
Share the property location, visible symptoms, whether the enquiry concerns chimney brickwork, flashing or general roof leadwork, and any photographs that may help.