Flat roof leaks hide: water travels between membrane and decking before it surfaces inside, often far from the entry point. Flat roof leak repair in McKinney starts with moisture tracing, not guesswork.
STORM TRIAGE
What do you need help with right now?
Pick the door that matches your situation. It routes you to the right person on the team, and every path starts with a free, documented look at the roof.
Texas law requires homeowners to pay their insurance deductible.
Cedar Crest does not waive or absorb deductibles. If anyone offers to, walk away.
It puts your claim at risk and may be illegal. We document damage, provide estimates,
and meet your adjuster on-site to answer construction questions. We are not a public
adjuster and do not interpret your policy or negotiate claim value.
We locate the entry point on a McKinney flat roof first, because the stain inside rarely tells the whole story. Then the repair gets matched to the membrane: TPO, EPDM, PVC, and mod-bit each repair differently, and McKinney buildings run all of them. Using the wrong material or method on a membrane is how a patched leak comes back. Every leak we find is documented with photos, estimates are free and written, deductibles are never waived under Texas law, and Cedar Crest is not a public adjuster.
Flat Roof Leaks and McKinney Hail
Low-slope membranes take hail differently than shingles do, and McKinney gets plenty of it: 39 days with hail an inch or larger within 8 miles since 2006, and 18 days with golf-ball-size or larger stones. A hail strike can bruise mod-bit or crack a TPO or PVC sheet without leaving an obvious hole, and the leak may not appear until a later rain. When we trace a leak here, we check for impact damage along with seams and penetrations so the repair addresses every entry point, not just the first one found.
McKinney is a Collin County city with mostly newer construction, a median housing year of 2007 and 52 percent of units from 1980 through 2009. Our flat roof crews also cover Allen and Lowry Crossing.
PUBLIC RECORD
The hail and housing record in McKinney
Before you plan flat roof leak repair in McKinney, it helps to know what the public record says about local hail and the age of the homes.
39
Hail days, 1 in.+ since 2006
18
Golf-ball-size hail days
4.5 in.
Largest stone on record
2007
Median year homes built
Hail near McKinney
NOAA's Storm Events Database lists 39 days since 2006 with hail one inch or larger reported within 8 miles of McKinney. On 18 of those days, the stones were golf ball size or bigger. Hail that size was reported in 16 of the last 20 years. The largest stones on record nearby measured 4.5 inches (softball size) on March 24, 2019. The most recent report: 1-inch hail on March 29, 2025.
March 24, 2019: 4.5-inch hail (softball size)
May 28, 2024: 2.75-inch hail (baseball size)
April 21, 2017: 2.75-inch hail (baseball size)
May 19, 2023: 2.5-inch hail (tennis ball size)
June 15, 2023: 2-inch hail (hen egg size)
How old McKinney homes are
The median home in McKinney was built in 2007. A large share of the city's 77,617 housing units are now old enough that original roofs are coming due, while 40% were built in 2010 or later.
Sources: NOAA National Centers for Environmental Information, Storm Events Database (hail reports since 2006 within 8 miles of McKinney); U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Data pulled September 2026.
We don't waive deductibles; nobody legally can. Texas law requires
homeowners to pay their insurance deductible (Tex. Ins. Code ch. 707). If a roofer offers
to "cover" or "absorb" yours, walk away. It puts your claim at risk and may be a felony
for the contractor.
We document damage, provide repair and replacement estimates, and meet your
adjuster on-site to answer construction questions. We are not a public adjuster
and do not interpret your insurance policy or negotiate claim value on your behalf.
Common questions about flat roof leak repair in McKinney
Why does my flat roof leak keep coming back?
Usually because the visible symptom got patched while the actual entry point kept feeding water into the assembly. Moisture tracing finds the source; that is the repair that lasts.
Can ponding water cause leaks?
Standing water accelerates membrane wear and finds every weakness. Persistent ponding is a drainage problem worth solving, not just a symptom to patch around.
Do you repair all flat roof types in McKinney?
TPO, EPDM, PVC, modified bitumen, and built-up systems, each with the repair method the system calls for.
Will this work void our builder's warranty in McKinney?
Properly documented work doesn't, and our written findings and scopes are built to keep your builder-warranty file intact. What actually endangers coverage is undocumented storm patching, which we don't do.
How often does hail hit McKinney?
NOAA's Storm Events Database lists 39 days since 2006 with hail one inch or larger reported within 8 miles of McKinney, including 18 days with golf ball size stones or bigger. Hail that size was reported in 16 of the last 20 years. The most recent report was 1-inch hail on March 29, 2025.
How old are most homes in McKinney?
The median home in McKinney was built in 2007, according to the U.S. Census Bureau's American Community Survey. 8% of the city's housing units predate 1980 and 40% were built in 2010 or later. Many homes here still have their original builder-installed roof.
