Roof Flashing Repair in Lago Mar, Texas City, TX

Flashing is the thin metal that keeps water out at every roof joint — and it's the #1 source of leaks we repair. Roof Leak Repair Pros is the local licensed expert for roof flashing repair in Lago Mar, Texas City, TX. Lago Mar is a 2,033-acre master-planned community along I-45 with roughly 4,000 homes and Texas' largest crystal lagoon.

Roof flashing repair restores the metal transitions where your roof meets walls, chimneys, vents, and valleys. We remove the failed flashing, inspect the underlayment beneath, install new corrosion-resistant flashing, and seal it to manufacturer spec — then water-test the detail. The community was built from about 2016 onward by D.R. Horton, LGI, Davidson and others — new roofs, but construction-detail leaks still occur.

Signs Your Flashing Is Failing

Rust streaks running down from a chimney or wall, water stains on interior walls near roof intersections, and visible gaps where metal meets masonry are the classic tells. From the ground with binoculars you can often spot lifted or missing sections.

Inside, flashing leaks show as stains at the top of walls or around chimney breasts — not in the middle of ceilings. Lago Mar is a 2,033-acre master-planned community along I-45 with roughly 4,000 homes and Texas' largest crystal lagoon. If that matches what you're seeing, flashing is the prime suspect.

• Stains around the chimney breast
• Rust streaks below chimneys or walls
• Stains at tops of interior walls
• Visible gaps at metal-to-masonry joints

Our Flashing Repair Process

We never caulk over failed flashing and call it repaired. The old flashing comes out, the underlayment and decking beneath get inspected and repaired if rotted, and new flashing goes in with proper overlaps and fastening.

We use corrosion-resistant metals matched to your roof and climate — aluminum or galvanized steel for most homes, copper where longevity justifies it. The community was built from about 2016 onward by D.R. Horton, LGI, Davidson and others — new roofs, but construction-detail leaks still occur. Every repair is water-tested before we leave.

• Failed flashing fully removed, not patched over
• Decking and underlayment inspected beneath
• Corrosion-resistant replacement metals
• Sealed and fastened to manufacturer spec

Why Lago Mar Roofs Punish Weak Flashing

Lago Mar is a 2,033-acre master-planned community along I-45 with roughly 4,000 homes and Texas' largest crystal lagoon. That exposure accelerates corrosion and works sealant joints loose faster than inland roofs see. Homes here need flashing details built for the local weather, not the minimum code detail.

We also see plenty of original builder-grade flashing on Lago Mar homes — thin galvanized metal installed to a price point, now at the end of its service life. The community was built from about 2016 onward by D.R. Horton, LGI, Davidson and others — new roofs, but construction-detail leaks still occur.

• Builder-grade flashing at end of life
• Sealant joints worked loose by thermal cycling
• Wind-driven rain exploiting small gaps
• Dissimilar-metal corrosion at mixed details

Helpful Roofing Guides

• Flashing Failure: The #1 Cause of Roof Leaks
• Why Roofs Leak in Heavy Rain (But Stay Dry in Light Showers)

Roof Flashing Repair in Lago Mar FAQs