Roof Leak Detection & Repair
Roof Leak Detection in Las Vegas — Find It Fast, Fix It Right
If your roof is leaking, call or text photos to (725) 502-3114. Finding a roof leak is harder than fixing one. Water rarely enters where it shows up inside — it travels along underlayment, decking, and framing before it drips through a ceiling. The companies that struggle with leaks are the ones that guess. Leak detection is our specialty, and it is the foundation of everything City Seamless Roofing does.
We pinpoint the true entry point of a roof leak quickly and accurately — most of the time without tearing the roof apart — then repair it and back the repair with a 5-year leak warranty. If you have a stubborn leak that another company couldn't solve, this is exactly the call to make.
Leaking right now? Do these four things first
Stay off the roof. Desert roofs are hot, steep and slick with grit, and worse when wet.
Catch the water with a bucket, and move furniture and belongings out from under it.
Take photos of the stain and write down when it shows up and what the weather is doing.
Call or text the photos to (725) 502-3114. Our guide to the first hour of a roof leak has the full list.
Why Leaks Are So Hard to Find on Desert Roofs
On a Las Vegas tile roof, water can enter through a single cracked tile, a failed pipe boot, or a hairline gap in flashing, then run down the underlayment for several feet before finding a nail hole or seam to drip through. By the time it stains a ceiling, the visible damage can be far from the actual entry point. Chasing the stain instead of the source is why so many leak 'repairs' fail.
We work the other direction — from symptom back to source — using the roof's geometry, water-travel patterns, and the predictable failure points of desert roofing to isolate exactly where the water gets in.
Where the Leak-Finding Comes From: 150 Slot Canyons
Cody Peterson, owner of City Seamless, has been through about 150 slot canyons, and most of them were full of water. A slot canyon is cut by water. Go through enough of them and you see how water really moves: it takes the low path, it gets into the thinnest crack, and it comes out far from where it went in.
A roof leak works the same way. The stain on your ceiling is where the water came out, not where it got in. Finding where it got in is the job, and it is the part of roofing we are best at. In Cody's words: "I understand water the way a hydrogeologist does. I am the best you will find in Las Vegas at finding leaks."
How We Pinpoint a Roof Leak
Interior and exterior assessment — we start with the evidence: where the stain is, the roof slope above it, and the penetrations and transitions in that path.
Inspection of the usual suspects — flashing at walls, chimneys, and skylights; pipe boots and vents; valleys; cracked, slipped, or broken tiles and the underlayment beneath them; ridge mortar and bird stops; and low-slope transitions where monsoon water pools. On tile roofs — the bulk of what we work on — the leak is usually under the tile, not the tile itself.
Targeted water testing when needed — controlled testing to confirm the entry point before any repair, so we fix the real problem the first time.
Clear explanation — we show you what we found and why it leaks, then repair it and warranty the fix.
The Most Common Leak Sources We Find
Across Southern Nevada, the recurring culprits are dried and cracked pipe boots, failed or improperly installed flashing, cracked and slipped tiles from wind, aged and brittle underlayment, unsealed penetrations left behind by old antennas or AC work, and low-slope areas that pool during monsoon storms. Knowing these patterns is what lets us find leaks fast.
Backed by a 5-Year Leak Warranty
Because we find the true source instead of patching symptoms, we can stand behind our work. Every leak we repair is covered by a 5-year leak-repair warranty. If it leaks again in that window, we make it right.
Questions about roof leak detection & repair? Browse our FAQ, or call our friendly staff.
Often, yes — that's our specialty. Leaks that defeat other companies are usually being chased at the stain instead of the source. We work from the symptom back to the true entry point, accounting for how water travels along underlayment and framing before it shows inside.
Most of the time, no. We pinpoint the great majority of leaks without a tear-off by reading the roof's geometry and inspecting the predictable failure points. We only open up roofing where the diagnosis requires it, and we explain before we do.
Active leaks are a priority. Call or text photos to 725-502-3114 for fast triage. Many leaks are diagnosed and repaired in a single visit; larger underlayment or flashing issues are scheduled promptly after diagnosis.
Yes — every leak repair carries a 5-year leak-repair warranty. If the leak returns within the warranty period, we come back and correct it.
That's normal — the entry point is rarely directly above the stain. Don't wait; trapped moisture causes mold and framing damage. Not sure the roof is even the cause? Here is how to tell a roof leak from an air conditioner or plumbing leak, using checks you can make from inside the house. Call 725-502-3114 and we'll trace it to the source.
Hard or sideways rain can reach small gaps at flashing edges, under tile and around pipe boots that stay dry in light rain. The gap is open every time it rains, so it is worth finding. Here is where those gaps hide. Call or text photos to (725) 502-3114.