Chimney Lead Flashing Repairs in Dartford – Stop Roof Leaks at the Source
Noticing water marks near your chimney breast or in the loft? Nine times out of ten, it’s failed lead flashing. S Harris Roofing provides professional chimney lead flashing repairs across Dartford to seal out the weather and protect your home.
What Is Lead Flashing & Why It Fails
Lead flashing is the protective sheet that bridges the gap where your chimney meets the roof. Over time, flashing can split, lift, or pull away if it was poorly detailed, fixed with the wrong sealant, or stressed by movement and weather.
- Common failures: split lead, loose step flashing, missing soakers, dried/cracked mortar chases, failed sealants.
- Typical symptoms: damp patches on ceilings/walls, musty loft insulation, staining around the chimney breast.
Chimney Lead Flashing Repair Costs in Dartford
Exact pricing depends on access, stack height, and the extent of damage. Here are straightforward ballparks:
| Lead Flashing Task | Typical Price Range | Notes |
|---|---|---|
| Re-seal mortar chase & minor re-dress | £180 – £350 | For small lifts/splits with good base lead |
| Replace apron or step flashing (single face) | £300 – £550 | Includes cutting chases and fixing correctly |
| Full chimney re-flash (apron, steps & soakers) | £650 – £1,100 | Best for recurring leaks / worn-out lead |
| Re-flash + repointing to chimney faces | £800 – £1,400 | Bundle to solve both causes of ingress |
Next step: Book a free inspection and fixed quote. Request a visit and we’ll confirm the exact price after a safe survey.
How We Repair Chimney Lead Flashing (Properly)
- Survey & photos: Identify split/loose lead, check soakers and mortar chases.
- Preparation: Lift tiles as required, remove failed sealants, rake out chases cleanly.
- New leadwork: Fit correctly sized code 4/5 lead (as appropriate), with stepped flashing and individual soakers.
- Fixing & sealing: Secure with appropriate fixings and chase seal (lead-compatible), then neatly dress for water runoff.
- Finishing: Re-bed tiles, tidy the work area, provide before/after photos.
If the brick joints are also failing, we’ll recommend repointing to stop the problem returning.
Why Choose S Harris Roofing in Dartford
- Leadwork specialists: Proper step flashing, soakers and apron detailing — no shortcuts.
- Local & reliable: We know Dartford’s property styles and typical weak points.
- Transparent pricing: Clear written quotes, no hidden extras.
- Quality materials: Correct lead codes and compatible sealants for long-term performance.
- Guaranteed repairs: Workmanship backed by our guarantee and photo evidence.
Lead Flashing Repair FAQs
Can you repair flashing without scaffolding?
For low, accessible stacks, yes — we can often work safely from ladders/towers. Taller stacks or complex roofs may require scaffold for a proper job.
Do you use lead or alternatives?
We primarily use lead due to its longevity and malleability. Where specified, we can fit lead-alternative systems — we’ll advise what’s best for your roof.
Will new flashing stop my leak completely?
If flashing is the cause, yes. If mortar joints or chimney caps are also failing, we’ll address those in the same visit to guarantee a watertight result.
How long does a re-flash take?
Minor re-dress/re-seal: a few hours. Full re-flash with soakers: typically 1 day, depending on access and weather.
What lead code should be used?
Usually code 4 or 5 depending on span and exposure. We follow best practice so your flashing lasts.
Do you provide photos and a guarantee?
Yes — you’ll get before/after photos and a written guarantee on our workmanship.
Book Chimney Lead Flashing Repairs in Dartford
Stop the leak at its source with correctly detailed leadwork from S Harris Roofing. Get a free inspection and a fixed quote today.
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