Skylights in Mount Pleasant homes often leak where the curb meets the roof deck, especially on houses in I'On and Shem Creek that sit close to tidal water. Salt-laden air accelerates corrosion on aluminum frames while the region's frequent summer thunderstorms drive water under failed step flashing. Older skylights in the Old Village commonly have single-pane acrylic domes that haze and crack after years of UV exposure, allowing condensation to pool inside the curb and drip during mild winter temperature swings.
Repair work here requires removing the existing flashing without disturbing the surrounding shingles, which are typically architectural asphalt on homes built from the 1980s onward. We inspect the cricket and apron flashing for gaps, then reinstall with new counter-flashing tucked under the upper course. In neighborhoods like Dunes West, where tree cover shades roofs for much of the day, moss and debris trap moisture against the skylight base, so we always clear the area and apply self-adhered membrane before resetting the unit.
Access on two-story homes near the Arthur Ravenel Jr. Bridge often means ladder placement on sloped driveways or limited backyard space, which adds time compared with single-story Park West properties. We never rely on caulk alone; proper mechanical fastening and compatible underlayment keep the repair watertight through the next hurricane season.
Technician insight
In Mount Pleasant the thing that catches most people out with Skylight Leak Repair is the way salt air from Shem Creek and the harbor pits aluminum frames right at the curb line; homeowners keep adding caulk on top of the corrosion and the leak returns after the first hard rain.
I'On Two-Story Leak
Water stains appeared on the upstairs hallway ceiling after a summer storm. We found the skylight apron flashing had lifted where the original installer had used only sealant. We removed the old flashing, installed new copper step flashing and a fresh membrane under the shingles, then reset the dome with new gaskets. No further leaks through the next winter season.
Skylight Leak Repair Services We Offer
✓Skylight Seal Replacement
Replace deteriorated rubber gaskets and butyl tape around the dome perimeter to stop water intrusion before it reaches the interior ceiling.
✓Flashing Repair Around Skylights
Remove and reinstall corroded step and counter-flashing on homes near Shem Creek where salt air shortens metal life.
✓Emergency Skylight Leak Patching
Temporary tarp and sealant measures for active leaks during storms affecting Old Village and I'On residences.
✓Skylight Frame Corrosion Treatment
Clean and coat aluminum frames on units exposed to humid subtropical conditions and nearby Atlantic salt spray.
✓Cricket and Apron Rebuild
Rebuild missing or undersized crickets behind skylights on steeper Charleston County roofs to divert water flow.
Skylight Leak Repair Cost in Mount Pleasant, SC
| Service | Typical Range | What Affects It |
|---|---|---|
| Seal And Gasket Refresh | $275–$450 | Single skylight on one-story home |
| Flashing Replacement | $450–$750 | Includes new step and counter-flashing |
| Full Skylight Reinstallation | $850–$1,400 | New unit plus curb work on two-story homes |
| Emergency Temporary Patch | $175–$325 | Storm response, later permanent fix |
Ranges are typical for Mount Pleasant, SC and confirmed with an exact written quote before any work starts.
How it works
- 1
On-Site Assessment
We examine the skylight from both inside and out, checking for water stains, failed flashing, and debris buildup common in Mount Pleasant's tree-lined streets.
- 2
Moisture Mapping
Trace the leak path through the decking and insulation, noting any secondary damage from humidity trapped under the roof.
- 3
Targeted Repair
Replace seals, flashing, or the entire curb assembly using materials suited to coastal exposure without disturbing surrounding shingles.
- 4
Final Water Test
Apply a controlled hose test to confirm the repair holds before leaving the site.
Pricing
Most skylight leak repairs in Mount Pleasant fall into mid-range pricing depending on roof access, skylight size, and whether the dome itself needs replacement.