Chimney flashing fails fast in Montgomery County because the humid subtropical air with hot summers and mild winters keeps moisture trapped under the metal. Step flashing along the sides rusts first where it meets the brick, especially on homes near Conroe Lake and in April Sound. We pull the old metal, check for rotted sheathing, and fit new pieces that lap correctly so water runs off instead of behind the chimney.
Cheap crews often skip the counter flashing and just slap on sealant. That sealant cracks within two summers here and lets water into the attic. We cut a reglet into the chimney mortar, slide in new counter flashing, and use lead wedges plus high-grade polyurethane caulk rated for 50-year exposure. This meets the way Montgomery County inspectors want to see it done on re-roof permits.
Grand Central Park and Downtown Conroe homes from the 1980s and 1990s often have the original aluminum flashing that has already pitted through. We replace it with copper when the roof is slate or tile so the metals match. One common mistake is leaving the old flashing in place and roofing over it, which guarantees another leak within three years.
Lake Conroe humidity drives condensation under the flashing even when it is not raining. We add a strip of ice-and-water shield behind the new metal and run it up the chimney four inches. This extra layer stops the slow drip that shows up as brown stains on your ceiling after a mild winter.
Chimney Flashing Leak Repair Services We Offer
✓Emergency Chimney Flashing Leak Repair Conroe
Same-day response when water is actively dripping into the attic near the chimney. We tarp and seal the area the same visit.
✓Chimney Flashing Replacement Conroe
Full removal of rusted step and counter flashing with new 16-oz copper installed to match existing roof slope.
✓Chimney Cricket Installation Conroe
Build a cricket behind wide chimneys on homes in Grand Central Park to divert water and stop pooling leaks.
✓Commercial Chimney Flashing Repair
Repair flashing on multi-story buildings and churches using heavier gauge metal and longer lead times for permit approval.
✓Chimney Flashing Inspection Conroe
Check all four sides of the chimney, probe for soft sheathing, and give a written report before any work starts.
Chimney Flashing Leak Repair Cost in Conroe, TX
| Service | Typical Range | What Affects It |
|---|---|---|
| Chimney flashing leak repair one side | $450–$650 | Single wall, easy access, no rotted sheathing |
| Chimney flashing replacement all sides | $750–$1,100 | Full perimeter, copper upgrade, minor deck repair |
| Add cricket behind chimney | $300–$450 | Extra framing and metal on wide chimneys |
| Emergency after hours call out | $150–$250 | Added fee on nights and Sundays |
| Chimney flashing inspection | Free | On-site look and written quote, no obligation |
Ranges are typical for Conroe, TX and confirmed with an exact written quote before any work starts.
How it works
- 1
Inspect from attic and roof
We climb into the attic first to mark every wet spot, then check the flashing on the roof for gaps and rust.
- 2
Remove old flashing
Cut out the damaged step and counter flashing without tearing shingles, usually takes 45 minutes per side.
- 3
Install new metal and seal
Fit new copper or aluminum, slide counter flashing into the reglet, and run a bead of polyurethane caulk rated for Texas heat.
- 4
Test and clean up
Run a hose test for 10 minutes and check the attic again before we leave the job.
Pricing
Most chimney flashing jobs in Conroe run $450 to $950 depending on how many sides need work and roof access.