Mon - Fri: 7:30 AM - 5:30 PM | Sat: 9:00 AM - 2:00 PM | Sun: Closed

678 Washington DC, USA

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Roof Flashing Repairs

Cracked mortar, damaged leadwork, or degraded zinc around chimneys and roof junctions are prime culprits for water leaks. Doctor Roofing specializes in precision lead and zinc work, creating weather-tight seals where your roof meets walls and vertical structures.

When You Need Roof Flashing

Water leaking into the attic specifically around the base of the chimney stack. Cracked, slipped, or loose mortar pointing holding lead flashing in place against brickwork. Buckled, torn, or corroded lead sheets visible in roof valleys or around dormer windows. Damp patches appearing on interior walls adjacent to chimney breasts or roof extensions.

How We Do It

Inspect the chimney stack, valleys, and wall junctions to locate failed flashing and cracked mortar joints. Carefully remove old, deteriorated lead and rake out crumbling mortar from brickwork joints. Dress new, high-grade lead sheeting into place and secure with appropriate fixings and fresh mortar repointing. Check all joins and step flashing to guarantee a completely waterproof seal against wind-driven rain.

What to Expect

Most flashing repairs and chimney repointing jobs are completed within 1 to 2 days.

Roof Flashing Repairs FAQs

Lead flashing bridges the gaps where roofs meet vertical walls or chimneys, preventing rainwater from penetrating the joints into your home.
If lead is split, corroded, or pulling out of the brickwork joints, replacing the affected section with new lead is the only permanent solution.
Yes, we specialize in lead, zinc, and chimney repointing work to ensure all junctions on your roof remain watertight.
Properly installed lead flashing can easily last 60 years or more, outliving many types of roof tiles.