Common entry routes
- Split, undersized or poorly chased lead flashings
- Open mortar joints or saturated masonry
- Cracked flaunching around chimney pots
- Defective soakers hidden below slates or tiles
- Failed back gutter on the upslope side
- Water travelling from a higher defect along underlay or timber
Clues worth recording
- Which chimney face takes the weather
- Whether leakage happens only in wind-driven rain
- Exact position of loft dampness versus the ceiling stain
- Condition of unused flues and ventilation
- Any recent pointing, coating or roof repair
Repair options
The right scope might be a local lead repair, new step flashings and soakers, repointing, rebuilding defective flaunching or a coordinated chimney overhaul. Smearing sealant over the visible joint rarely fixes movement or hidden detailing.
When it is urgent
- Loose masonry or pots
- Water close to electrical fittings
- Saturated ceiling or insulation
- Rapidly spreading damp after each storm
What your quotation should confirm
- Photos of every chimney face and the upslope back gutter
- Separate pricing for leadwork and masonry
- Lead code, bay lengths and fixing method
- Treatment of hidden soakers and underlay
- Scaffold and debris protection
What to check next
- Inspect lead, masonry and coverings together
- Check which chimney face is exposed to the weather
- Avoid sealing moisture into defective masonry
When should you ask a roofer to inspect it?
Book an inspection when a leak is active or recurring, the source is unclear, timber or insulation is staying wet, or a previous patch has failed. Water near electrics, a sagging ceiling or loose material above a public area needs urgent attention.
Safety first: do not climb onto a roof without suitable access, training and protection. Keep clear of loose coverings, unstable ceilings and water near electrical fittings.
Would you like a property-specific answer?
Request an inspection and written quotation from J&L Welch.
No deposit is required. Payment is due on completion within seven days, with the agreed scope and price confirmed in writing.