
Columbus sits on a flat glacial till plain between the Scioto and Olentangy rivers, and that geography shapes every roof leak we chase. Flashing, Chimney & Skylight Repair in Columbus is the work that stops water at the joints where metal meets brick, masonry, glass and valley. German Village and Victorian Village brick row homes have chimneys that have been repointed a dozen times, and the counter-flashing at the brick is usually the first thing to fail. Out in Dublin, Hilliard and Westerville, tall chimneys and skylights punch through steep architectural shingle and standing seam roofs, and every one of those penetrations is a leak waiting for the next freeze-thaw cycle. We bend our own flashing in-house so the fit is exact, not a hardware-store approximation. If water is already coming in, start with metal roof leak repair and we will trace it to the actual entry point.
Why Flashing Fails First on Columbus Roofs
Central Ohio runs four true seasons, and the freeze-thaw cycle is what kills flashing here. A January night drops to 18 degrees, the day climbs to 38, and water works into every seam, lap and fastener hole around a chimney or skylight. Multiply that by a hundred cycles a winter and even a good lead or copper flashing starts to pull away from the masonry. Add spring hail and straight-line wind from the thunderstorms that roll across Franklin County, and the picture is clear: the penetration, not the field of the roof, is where leaks begin.
- Brick chimney counter-flashing pulls out of the mortar joint as the chimney settles and the mortar cracks.
- Skylight curb flashing dries out and shrinks, opening a gap right at the curb on steep Dublin and New Albany roofs.
- Step flashing along sidewalls corrodes or gets bent flat by ice, letting water run behind the siding.
- Valley flashing on mature-tree lots in Clintonville and Bexley fills with leaf debris, backs up and rots the metal from underneath.
- Fastener and pipe boot seals around vents and penetrations harden and crack after a few summers of UV.
All of these are repairable without tearing off a roof, provided someone gets up there and finds the real source before the decking and insulation are soaked.
Key info: A homeowner in Upper Arlington called us about a ceiling stain that appeared every February. The shingles were fine. The culprit was a chimney saddle that had been patched with caulk three times. We replaced the saddle and counter-flashing in copper, and the stain has not returned through two winters.
Permits and inspection requirements for roofing work vary by jurisdiction across Franklin County, so confirm the current rules with the City of Columbus building department before any structural change around a chimney.
How We Repair and Rebuild Flashing Around Chimneys and Skylights
We start on the roof, not on the phone. A technician walks the plane, checks the masonry, the curb, the valleys and the attic side if access allows, and photographs every suspect joint. Then we decide whether the flashing can be re-set and sealed or has to come out and be rebuilt. Most chimney jobs need the old counter-flashing cut out of the mortar, the joint cleaned and tuckpointed, and new metal set in a reglet or a cut groove so water cannot get behind it.
- We inspect the penetration, the surrounding field, and the attic or ceiling below to confirm the entry point.
- We remove failed sealant, bent step flashing and corroded metal, and we check the decking for rot.
- We fabricate new flashing on site from coil stock, copper or Kynar-finished steel to match the roof.
- We set the flashing in a proper reglet or mortar joint, lap it correctly, and fasten it so thermal movement does not tear it loose.
- We seal the laps with compatible sealant, not a smear of caulk over the whole joint.
- We water-test the repair and photograph it before we leave the property.
If the roof is a standing seam system, the flashing has to be detailed to the panel ribs and clips, which is a different job than working around three-tab shingles.
Key info: On a 1920s Bexley Tudor with a tall central chimney, the original step flashing had been covered with roofing cement for decades. We cut the chimney back to sound mortar, installed new copper step and counter-flashing, and rebuilt the cricket behind it. That roof had been leaking into a bedroom ceiling for three seasons.
For homes in the 43201 zip around the Short North and Italian Village, we handle the tight brick-to-metal details those older roofs demand; see our Flashing, Chimney & Skylight Repair in Columbus (43201) page for that area.
Flashing Repair Methods We Use in Columbus
Not every penetration gets the same treatment. The right method depends on the roof material, the masonry condition, the pitch, and whether the flashing has to move with the roof or stay locked to the chimney. Here is how we match the approach to the job.
| Approach | Description | Best for |
|---|---|---|
| Counter-flashing in a reglet | We cut a groove in the masonry and set new metal into it, then seal and tuckpoint. | Brick chimneys on German Village and Victorian Village row homes |
| Step and apron flashing replacement | New step flashing woven into the field and an apron at the chimney base. | Steep shingle and standing seam roofs in Dublin and Westerville |
| Skylight curb rebuild | We rebuild the curb, replace the flashing kit and re-set the unit watertight. | Aged skylights on 1980s and 1990s Hilliard and Gahanna roofs |
| Custom valley and cricket fabrication | We bend copper or Kynar steel to the exact valley or cricket geometry. | Complex roofs under mature oaks and maples in Bexley and Clintonville |
| Pipe boot and vent seal replacement | We pull the old boot and install a new one matched to the pipe diameter. | Fast, low-cost leaks on any Columbus roof |
Each of these is a targeted repair, not a full re-roof, and we tell you plainly when the flashing is too far gone to save.
Flashing, Chimney & Skylight Repair Cost in Columbus: What to Expect
Most flashing repairs start around $600 and climb from there. A single pipe boot or a small step-flashing re-set is at the low end. A full chimney counter-flashing rebuild with tuckpointing, a skylight curb rebuild, or a custom copper cricket on a steep Bexley roof lands well above that. The variables are the height and pitch of the roof, how much masonry work the chimney needs, whether the decking under the flashing is rotted, and whether the metal has to be custom-bent to match an existing profile.
Getting two or three written estimates is smart, and not just on price. Ask each contractor to show you photos of the actual failed joint and to explain what they will remove and what they will install. A quote that says "reseal chimney" without naming the flashing method is a patch, not a repair. Our full pricing overview lays out how we build an estimate.
Key info: A Westerville homeowner had three quotes for a skylight leak. Two proposed caulk and a coating. The third proposed a curb rebuild. The first two would have failed within a season because the leak was at the curb-to-deck joint, not the glass.
Hiring a Metal Roofing Contractor Near Me for Flashing Work in Columbus
Flashing is detail work, and the crew that does it well is not always the crew with the biggest truck. Ask for proof of Ohio licensing and general liability and workers compensation insurance before anyone climbs a ladder. Ask for references from jobs similar to yours, ideally a chimney or skylight repair within the last year, and call them. Confirm who pulls the permit if one is required in your jurisdiction, and check with your HOA or historic district before changing visible metal or color on a German Village or Bexley home.
A contractor who will not put the flashing method in writing, or who wants a deposit before inspecting the roof, is a pass. Reach out through our contact and free estimate page and we will schedule a look at the actual penetration.
Flashing, Chimney & Skylight Repair in Columbus: Pricing Guide
| Service | Price | Details |
|---|---|---|
| Pipe boot and vent seal replacement | Starting at $600 | Includes pulling the failed boot, installing a new seal and water-testing the penetration. |
| Step and apron flashing repair | Starting at $850 | Covers re-setting or replacing step flashing along a sidewall or chimney base. |
| Chimney counter-flashing rebuild | Starting at $1,400 | Includes cutting a reglet, new metal, sealant and basic tuckpointing at the joint. |
| Skylight curb and flashing rebuild | Starting at $1,800 | Covers curb repair, new flashing kit and re-setting the unit watertight. |
| Custom valley or cricket fabrication | On estimate | Complex geometry and copper work need an on-site look before pricing. |
| Estimate | Free | Response within 24h at (380) 800-5621, no obligation to book. |
Indicative pricing, the exact cost depends on square footage, finish, and site access. Free personalized estimate within 24h at (380) 800-5621.