Most roof leaks do not start in the field of the roof — they start at flashing and penetrations. HVAC curbs, pipe penetrations and wall transitions are the leak sources we correct most often.

Most roof leaks do not start in the roof. Step flashing at walls, chimney flashing, valley flashing, vent boots, HVAC curbs and satellite penetrations are the top leak sources we see — which usually means the field of your roof is fine and the fix is targeted rather than total.
The pattern
The field of a roof is a continuous surface built to shed water, and it is generally good at that. Every place that continuity is broken — a wall, a chimney, a pipe, a rooftop unit — is a detail somebody had to get right, and those are where water finds a way in.
This is good news when you have a leak. It usually means you do not need a roof. It means you need a specific detail corrected, and the rest of the roof can carry on doing its job.
A bead of sealant over a failed flashing detail will hold for a while and then fail again, usually somewhere less convenient. Worse, it conceals the underlying detail, so the eventual proper repair costs more than it would have.
We re-flash. It costs more today than a tube of sealant and considerably less than the same leak three times.
Cost
Vent and HVAC curb resealing typically runs $300–$800 per penetration. Step flashing replacement at wall transitions runs $400–$1,200, and chimney flashing $400–$1,500. Everything is quoted in writing after inspection, and every repair carries a 1-year workmanship warranty.
If new rooftop equipment was recently set and leaks followed, that is a common sequence — equipment set through a roof needs the curb detailed by someone who works on roofs, and often it is not. See commercial roof repair for the rest of what we service.
Rooftop unit curbs — the single most common commercial penetration leak.
Plumbing vents and conduit, re-flashed rather than smeared with sealant.
Wall transitions where the roof meets vertical surfaces.
The single most common source of chimney leaks on residential roofs.
Properly lapped and terminated rather than face-sealed and hoped over.
Penetrations added after the roof went on, correctly detailed after the fact.
Certified inspector on-site, photo-documented findings, written report, no pressure and no hidden costs.
Small repair, big repair, or full replacement — we tell you which one this roof needs and why.
Instant online quote with sign-on-screen. The price you are quoted is the price you pay — no surprises.
Crew arrives on schedule, works clean, leaves no debris. Workmanship warranty on every job.
Full tear-off & replacement of a single-family roof.
TPO, EPDM, modified-bitumen, metal commercial systems.
Targeted repairs of any kind, residential or commercial.
Don't see your question? Call us at (469) 936-7663 — we're happy to talk it through.
Because the field of a roof is a continuous surface designed to shed water, and flashing is where that continuity is interrupted. Step flashing at walls, chimney flashing, valley flashing, vent boots, HVAC curbs and satellite penetrations are the top leak sources we see, and the shingle or membrane field is usually fine.
Sealant is a temporary measure, not a repair. It fails on a predictable schedule and it hides the underlying detail, which makes the eventual fix more expensive. We re-flash properly rather than face-sealing and hoping.
Vent and HVAC curb resealing typically runs $300–$800 per penetration. Step flashing replacement at wall transitions runs $400–$1,200, and chimney flashing $400–$1,500. Every repair is quoted in writing after inspection.
That is a common sequence. Equipment set on or through a roof needs the curb and flashing detailed by someone who works on roofs, and it frequently is not. We correct that work, and it is a fair share of what we do.
It can if it is done by someone not certified on the system. Tell us the manufacturer and warranty term and we will scope the repair to stay inside them.
Free inspection, honest scope, real warranty. Most service work scheduled within 24–48 hours.
(469) 936-7663