Ceiling stains that keep growing after rain
We trace the water path from the roof down with an inspection camera, seal the entry point at the crown or flashing, and waterproof the brick. The stain stops growing the same week.
Chimney leak repair in Galloway, New Jersey starts with finding where water actually gets in. We inspect the crown, flashing, brick, and flue, then fix the real source instead of smearing sealant over a symptom. Our chimney waterproofing repair Galloway NJ crews work on Smithville, Pomona, and Leeds Point homes every week. Call (844) 803-5147 for a same-day look.

Chimney leak repair in Galloway, New Jersey is the process of finding and sealing every path water uses to enter a chimney system, then restoring the masonry and flashing that failed. Water rarely comes in through one spot. It wicks through spalling brick, slips past a cracked crown, runs down a rusted chase cover, and pools at the damper. We open the firebox, check the attic side, and scan the flue with an inspection camera before we quote anything.
Galloway sits close enough to the coast that wind-driven rain hits chimneys at an angle most inland masons never plan for. Add freeze-thaw cycles from December through March and mortar joints open up fast. If you have been searching for chimney leak repair near me in Galloway, the pattern is usually the same: a stain on the ceiling, a musty smell in the living room, or rust on the damper. We stop the water before it reaches your drywall.
Every leak repair starts with a full inspection and ends with a water test. These are the items included in a standard Galloway leak repair. If we find something outside this scope, like a failed flue liner or a structural rebuild, we quote it separately and you decide.
Roof, attic, firebox, and flue inspected with an inspection camera and moisture meter. You get photos of every failed joint, crack, and flashing seam we find, plus a written summary of what failed and why.
Cracked crowns get ground out and recoated with a flexible crown mix that moves with freeze-thaw cycles. A crown that is too far gone gets rebuilt. Either way, the top of the chimney sheds water when we are done.
We lift the shingles around the chimney, reset or replace the step flashing and counter-flashing, and seal the roof line. This is the second most common leak source we find in Galloway homes.
Failed mortar joints get ground out with an angle grinder and repacked with refractory mortar. We match the existing joint profile so the repair blends into the chimney instead of standing out.
The whole chimney gets coated with ChimneySaver or Mason's Select waterproofing sealant. It keeps wind-driven rain out while letting trapped moisture escape, which is what makes the repair last.
We run a controlled water test on the finished chimney and check the firebox and attic for moisture. You get before-and-after photos and a 5-year workmanship warranty on the repair.
We arrive with an inspection camera and a moisture meter. Expect 45 to 60 minutes on the roof, in the attic, and at the firebox. You get photos of every failed joint, the crown, the flashing, and the flue liner. If we cannot find the source on the first visit, we do not charge for a guess.
Same day, you get a plain-English summary: what failed, why it failed, and the repair options with prices. No pressure and no upsell on a full rebuild when a $400 crown coat will do. We explain the difference between a chimney leak services Galloway patch and a permanent fix.
We grind out deteriorated mortar joints with an angle grinder and repack them with refractory mortar using a tuckpointing trowel and mortar hawk. Cracked crowns get a flexible crown mix, not a brittle parge coat that cracks again in one winter. This stage usually takes one full day.
We reset or replace the flashing at the roof line, then apply ChimneySaver or Mason's Select waterproofing sealant to the brick. It breathes, so moisture inside the chimney can escape instead of pushing the brick faces off. This is the step that makes a chimney waterproofing repair Galloway NJ job last.
Before we pack up, we run a controlled water test on the chimney and check the firebox and attic for moisture. You get before-and-after photos and a 5-year workmanship warranty on the repair. If water still gets in, we come back and find it at no charge.
Purpose-built equipment, used by trained technicians — so the job is done accurately the first time.
Lets us see inside the flue and behind the firebox without tearing anything apart. We use it to find liner cracks, creosote buildup, and water paths that are invisible from the roof.
Reads the actual moisture content in brick, mortar, and drywall. It tells us whether a stain is active or old, and whether our repair actually dried the assembly out.
Grinds out failed mortar joints to the correct depth and repacks them with refractory mortar. Clean joints are what make tuckpointing last instead of cracking out in a year.
Holds the mixed refractory mortar while we work the joints overhead. It keeps the mortar workable and the joints consistent across the whole chimney.
Clears creosote and nesting debris from the flue before we waterproof or reline. A clean flue is required for a code-correct repair.
Locks a damaged damper in the closed position so water and conditioned air stop moving through the firebox until the repair is finished.
A Smithville homeowner had a brown stain spreading across the living room ceiling every time it rained. Two prior companies had sealed the flashing, and the leak kept coming back. The crown had a hairline crack running the full width of the chimney.
We ground out the crack, recoated the crown with flexible crown mix, reset the flashing, and waterproofed the brick with ChimneySaver. The stain stopped growing within a week, and the repair held through the next two storm seasons.
A Pomona homeowner was quoted $9,000 for a full chimney rebuild. The brick faces were spalling and the mortar joints were wide open, but the structure itself was still sound. The leak was coming through the joints, not the flue.
We tuckpointed the full chimney with refractory mortar, replaced 14 spalled brick, installed a new crown, and waterproofed the whole stack. Total came in under $2,400, and the chimney has stayed dry for two winters.
An Oceanville homeowner had water pooling in the firebox during every nor'easter. The chimney cap was bent and partly missing, and the damper was rusted shut. Rain was running straight down the flue.
We installed a stainless steel cap, replaced the damper, and sealed the firebox. The next storm dropped two inches of rain, and the firebox stayed dry. The fireplace was safe to use again the same week.
Water finds the same weak points on Galloway chimneys year after year. Here is what we see most, what it costs you if you wait, and how we fix it.
Ask a pro →We trace the water path from the roof down with an inspection camera, seal the entry point at the crown or flashing, and waterproof the brick. The stain stops growing the same week.
We grind out the failed mortar, repack it with refractory mortar, and replace any brick that has already spalled. Then we waterproof the whole chimney so water stops getting in.
We repair or replace the damper, seal the firebox, and fix the leak above it. Once the water source is gone, the rust stops spreading and the fireplace is safe to burn again.
We remove the nesting material, sweep the flue, and install a properly sized stainless steel chimney cap. The cap keeps animals and rain out for good.
Most chimney leak repairs in Galloway run $350 to $1,800 in 2026, depending on what failed. A crown coat and flashing reset sits at the low end. Tuckpointing a full chimney plus waterproofing lands in the middle. A rebuild or new stainless steel liner pushes higher. We quote the smallest repair that solves the leak, in writing, before we start.
Thrive Sharp does, and we have been at it since 2021. We are CSIA Certified, NFI Certified, and licensed as a New Jersey Home Improvement Contractor. Our crews work out of trucks stocked with flashing, crown mix, and ChimneySaver sealant, so most Galloway leak repairs finish in a single visit. Call (844) 803-5147 and we will get eyes on it.
The four most common causes we find in Galloway are a cracked crown, failed flashing at the roof line, open mortar joints in spalling brick, and a missing or damaged chimney cap. Coastal wind-driven rain finds all four fast. A moisture meter and inspection camera tell us which one is yours in under an hour.
Yes, when the masonry itself is the source. A breathable waterproofing sealant like ChimneySaver stops wind-driven rain from soaking into brick and mortar, which is the root of most Galloway leaks. It will not fix a cracked crown or bad flashing on its own, so we repair those first and then waterproof the whole chimney as the final step.
One ceiling stain is cheaper to fix than one drywall replacement. Call (844) 803-5147 and we will be on your roof, camera in hand, usually the same day. Licensed, insured, and warrantied for 5 years.
Book a Leak Inspection (844) 803-5147 →Call (844) 803-5147 or send us a message and we will get back to you the same business day. We book Monday through Friday, 8 a.m. to 6 p.m., with same-day and after-hours slots for active leaks and storm damage. Tell us what you are seeing and we will tell you what it takes to fix it.