Lewisville Roof Repair: Fixing Leaks on Roofs That Have Seen a Lot
A leak rarely starts where the stain shows up. This guide covers what tends to fail on Lewisville roofs, how to narrow down the cause and what a sound repair looks like.
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Quick checks you can do from the ground and the attic
Look for shingles that sit crooked, curl at the edges or are missing after a windy night.
Check the gutters and downspout outlets for heavy piles of shingle granules.
In the attic, use a flashlight on a rainy day and look for damp wood or dark rings on the decking.
Find the plumbing vent pipes from below and see if the wood around them is stained.
Note any ceiling spot that grows after each storm, even if it never drips.
What the numbers say about Lewisville roofs
Half of the homes in Lewisville were built before 1997 (U.S. Census Bureau, American Community Survey 2020-2024). A house from that era is close to 29 years old. If it still has an early roof, the small parts are usually the first to give: rubber pipe boots crack, sealant around vents shrinks and step flashing pulls away from walls.
Storms add to that wear. NOAA's Storm Prediction Center logged 162 hail reports within 10 miles of Lewisville from 2015 through 2024, and 51 of them were 1.75 inches or larger. A bruised shingle can keep water out for a while and then start leaking after a later rain. That is why a stain can appear long after the storm that caused it. Our article on why roof damage may not cause an immediate leak explains how that happens.
How a proper leak repair goes
Trace the water
Water travels along rafters and decking before it drips. The crew follows it from the stain back to where it enters the roof.
Document the spot
Photos of the damaged area and the surrounding shingles show what failed and why.
Replace the failed part
That can be a pipe boot, a run of flashing, a few shingles or a section of wet decking.
Seal and test
New pieces are lapped and sealed so water sheds over them, not under them.
Report what else was seen
While on the roof, a good roofer notes other weak spots so you can plan for them.
Repair or something bigger?
A single leak, one cause
A cracked boot or a lifted shingle is a normal repair. Fix it soon and the roof keeps working.
Leaks in several rooms
When water gets in at more than one point, the roof may be near the end of its life. Compare options in roof repair vs. replacement.
Hail marks across the roof
Damage on many slopes after a storm calls for a full inspection. See hail damage roof repair in Lewisville.
Working with GemSco
GemSco is family owned, fully licensed and insured, and has 20+ years of experience on shingle, metal, tile and flat roofs. Every estimate is free and in writing. If water is coming in right now, start with emergency roof repair. For the full service overview, visit our roof repair page or our Lewisville roofing page.
Before the crew leaves, ask for photos of the repaired area and of anything else they noticed. Keep them with your home records. If the same spot leaks again, those images show what was done and make the next diagnosis faster.
Frequently Asked Questions
Why does my Lewisville roof leak only in some storms?
Leaks that show up only with strong wind or long, heavy rain often point to flashing, a lifted shingle or a valley that cannot drain fast enough. Light rain never reaches the weak spot. Writing down the wind direction and how long it rained helps the roofer find the cause faster.
Is it safe to patch a leak myself with roofing cement?
A patch from the outside can slow a drip for a short time, but it rarely fixes the real entry point, and climbing a wet roof is risky. Temporary patches often fail in the next storm. A tarp or a professional temporary cover is safer until a proper repair can be done.
Will repaired shingles match the rest of my roof?
Not always. Shingles fade with sun and age, and some colors are no longer made. On an older Lewisville roof, a repair may look slightly different. A good roofer will tell you before starting so you can decide if the match matters to you.
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