Flashing and chimney leak repair, sealed right.
For homes and businesses across the DFW Metroplex dealing with a leak at a chimney, skylight, wall, or vent, where flashing rather than the shingles themselves is almost always the real problem.
Renovacore Builders LLC repairs failed flashing at chimneys, walls, skylights, and vent penetrations for homes and businesses across the DFW Metroplex. Flashing is the metal and sealant work that closes the gap wherever something interrupts the roof surface, and it is where the large majority of roof leaks actually start, not in the middle of an intact shingle field. Chimneys move separately from the rest of the roof, skylights have both a curb and a glazing seal that can fail, and plumbing vent boots dry out and crack years before the shingles around them wear out. We inspect every flashing line and penetration, not just the one causing the current leak, and repair or replace what has failed.
Is water tracking in around your chimney, skylight, or a roof vent?
Staining near a chimney chase, a skylight well, or a plumbing vent almost always traces back to the flashing around that penetration rather than a problem with the shingles themselves. Chimneys shift independently from the roof deck over time, which works the flashing loose at the mortar joint. Skylights leak at the flashing kit around the curb or at the seal between the glass and frame, often both at once on an older unit. Pipe boots are rubber and dry out well before the roof's shingles do. If you're seeing a stain that lines up with one of these features, the flashing is the first place to look.
Warning signs to watch for
Staining that lines up with a chimney, skylight, or vent
When the wet spot on the ceiling is directly below or near one of these features, the flashing around it is the most likely source. Caulk-only fixes at these spots tend to hold for a season or two before failing again.
Visible gap or rust at the chimney flashing
Flashing that has pulled away from the brick, or counter-flashing that's rusted through, leaves a direct path for water at every rain. Chimneys without a cricket behind them are especially prone to water pooling against the brick.
Cracked rubber collar on a plumbing vent boot
The rubber boot around a plumbing vent dries out and splits years before the surrounding shingles wear out, and it's one of the most common leak sources on any roof. A cracked boot is easy to spot from the roof surface once you know to look for it.
Water staining on an interior wall below a roof-to-wall transition
Where a lower roof runs into a wall, step flashing and a kickout at the bottom are supposed to direct water into the gutter instead of behind the siding. A missing kickout is a common, hidden cause of rot that doesn't show up until it's significant.
What is causing the problem
Chimney flashing or counter-flashing that has worked loose
Chimneys settle and move independently of the roof structure, and the flashing that seals that joint eventually pulls free from the mortar. The fix is resetting step flashing and counter-flashing into the joint, with a cricket added behind wide chimneys.
A failed skylight flashing kit or aging glazing seal
Older skylights often leak at both the flashing kit and the seal between the glass and frame at the same time. Replacing the unit with a new, matched flashing kit is frequently the more lasting repair than resealing an old one again.
A cracked pipe boot or lifted vent flashing
This is one of the simplest and most common flashing failures, and it's an easy check during any Roof Inspections & Maintenance visit. Catching a cracked boot before it leaks is far less disruptive than repairing the ceiling after it does.
Missing or improperly installed step and kickout flashing at a wall
Where a roof meets a wall, the flashing has to be woven with the shingles course by course, and a kickout has to divert water at the bottom. When it was skipped or done wrong during the original install, rot can build in the wall sheathing for years before it's noticed.
What to expect during the visit
We inspect every flashing line on the roof, including the ones that aren't currently leaking, since a failure in one spot is often a sign the rest are close behind. For chimneys, that means checking the flashing, counter-flashing, and the mortar joint, and the attic side for any staining around the chase. For skylights, we check the curb, the flashing kit, and the glazing seal together, since an older unit often needs attention at both. We repair or replace the failed flashing, add a cricket or kickout where one is missing, and water-test the area before we consider the job finished.
Related services you may need
If the flashing failure has already led to a broader leak elsewhere on the roof, Roof Leak Repair addresses the full picture. Homes with aging flashing throughout benefit from routine Roof Inspections & Maintenance to catch the next failure before it becomes a leak.
The cost of waiting
Flashing failures start small, a hairline gap at a chimney joint or a slightly cracked boot, but they don't stay small. Every rain pushes a little more water past the failed seal, and it travels into the decking, the insulation, and eventually the framing around the chimney or wall. By the time rot is visible from inside, the repair usually involves more than flashing, it means rebuilding whatever the water has been sitting against. Addressing a flashing problem while it's still a flashing problem is a far smaller job than addressing it after it becomes a structural one.
Why does my roof keep leaking at the same spot near my chimney?
Recurring leaks near a chimney almost always mean the flashing has failed, not the shingles or the chimney itself. Caulk or sealant-only fixes tend to hold briefly and then open back up as the chimney continues to move separately from the roof. A proper repair resets the step and counter-flashing into the mortar joint so it holds long term.
How much does flashing repair cost?
Cost depends on how many penetrations need attention, whether a cricket or kickout has to be added, and whether any decking underneath has been damaged by the leak. A single pipe boot replacement is a much smaller job than reflashing a chimney with a new cricket. We give you a clear estimate once we've inspected the specific penetration.
Can flashing be repaired without replacing the whole roof?
Yes, in nearly every case. Flashing repair is a targeted fix at the chimney, skylight, wall, or vent in question and doesn't require touching the rest of the roof. Replacement only becomes necessary if the roof's shingles themselves are also failing on top of the flashing issue.
If you're seeing water stains near a chimney, skylight, or vent, call Renovacore Builders LLC at 469-896-1699 for a free inspection. We repair flashing for homes and businesses throughout the DFW Metroplex.
- Stop leaks quickly with dependable roof repair services, backed by fast response times and an honest assessment of what your roof actually needs.