Rain pouring straight into an uncapped flue
We install a stainless cap with a drip edge that sheds water 2 inches past the flue. That one change stops the water at the top and lets the masonry dry out. Most Galloway installs take under 3 hours.
Stainless steel caps that keep rain, animals, and sparks out for good
Chimney cap installation in Galloway, New Jersey done right the first time
Chimney cap installation in Galloway, New Jersey protects your flue from rain, squirrels, and stray embers. If your old cap is rusted, loose, or missing, we measure your flue, fabricate a stainless steel cap, and bolt it down with code-correct fasteners. Most jobs take two to three hours, and you get a 5-year workmanship warranty on every install.
Careful work. Honest options.
About this service
What chimney cap installation in Galloway, New Jersey actually involves
Chimney cap installation in Galloway, New Jersey is the fitting of a stainless steel or copper cover over the flue opening, secured to the crown or flue tile with masonry anchors and sealed with high-temp silicone. The cap does three jobs at once: it sheds water away from the flue, blocks animals from nesting inside, and catches sparks before they hit your roof. We measure the flue with a tape and inspection camera, then match the cap to your flue size, crown condition, and appliance type.
Most Galloway homes we see were built between the 1970s and early 2000s, and their original caps have rusted through or blown off in nor'easters. Without a cap, rain pours straight into the flue, mixing with creosote and eating the mortar joints from the inside. That is why chimney cap replacement Galloway NJ homeowners call us for is rarely just cosmetic. It is the cheapest way to stop a $4,000 liner repair before it starts.
- ✓ Stops water intrusion
- ✓ Keeps animals out
- ✓ Catches sparks and embers
- ✓ Improves draft and stops backdraft
What's included
What our chimney cap installation includes
Every cap install starts with a roof and flue inspection, then moves to measuring, mounting, sealing, and a draft test. Here is what is covered in the standard price, and what we quote separately if we find it up there.
✓
Roof and flue inspection
We check the crown, flashing, flue tile, and damper before quoting the cap. If the crown is cracked or the flue tile is spalling, we show you a photo and quote the repair. You decide whether to fix it now or later.
✓
Stainless steel cap and screen
We supply a 24-gauge stainless steel cap with a welded spark screen and a 2-inch drip edge. Stainless holds up to Jersey shore air far better than galvanized. The screen keeps animals out without choking the draft.
✓
Masonry anchors and sealant
We drill into the crown or flue tile with a masonry bit and set stainless lag shields. Then we seal the perimeter with high-temp silicone rated for flue temperatures. That is what keeps the cap from lifting in a nor'easter.
✓
Draft and damper check
After the cap is on, we run a smoke test to confirm the draft pulls. We also check the damper and the firebox for smoke roll-out. If the cap is restricting airflow, we adjust it before we leave the roof.
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Cleanup and walkthrough
We sweep the roof of metal shavings and mortar dust, then walk you through what was installed and how to check the anchors yourself. You get a written record of the cap size, material, and install date for your files.
How it works
Our chimney cap installation process, step by step
01
Roof and flue inspection
We walk the roof, check the crown, flashing, and flue tile, and drop an inspection camera down the flue. If the crown is cracked or the flue tile is spalling, we tell you before we quote the cap. This takes about 20 minutes and costs nothing when you book the install.
02
Measure and match
We measure the flue's outside dimensions and the crown's condition, then match a cap to your appliance. Single-flue wood stoves get a different cap than a multi-flue masonry fireplace. We carry Selkirk, DuraVent, and Olympia Chimney caps on the truck for same-day fits.
03
Fabrication or fit
Stock caps go on the same visit. Custom chimney cap installation Galloway New Jersey homeowners order for odd flue sizes takes 5 to 7 days at the shop. We build those from 24-gauge stainless with a welded spark screen and a 2-inch drip edge.
04
Mount and seal
We set the cap level, drill into the crown or flue tile with a masonry bit, and anchor it with stainless lag shields. Then we seal the perimeter with high-temp silicone. The whole mount takes 45 to 60 minutes on a standard single-flue chimney.
05
Draft test and cleanup
We light a test fire or run a smoke test to confirm the draft pulls, then check the damper and the firebox for any smoke roll-out. Before we leave, we sweep the roof of metal shavings and mortar dust, and we walk you through what we installed.
Tools & methods
Tools and methods behind our cap installs
Purpose-built equipment, used by trained technicians — so the job is done accurately the first time.
Inspection camera
We drop it down the flue to check the liner for cracks and creosote before we quote the cap. It shows us whether the flue tile is sound enough to anchor into.
Chimney brush and rods
We sweep the flue before capping so the cap is not sitting over a pile of creosote. Brushing also lets us see the liner condition clearly on camera.
Masonry chisel and tuckpointing trowel
Used to clean up loose mortar around the crown before anchoring the cap. A clean base means the anchors bite into solid material, not crumbled mortar.
Power drill with masonry bit
We drill the anchor holes into the crown or flue tile with a carbide masonry bit. Clean holes keep the tile from cracking when the lag shield goes in.
Angle grinder
For crown repairs and tuckpointing, we grind out bad mortar and shape the new crown mix so water sheds away from the flue. The cap then sits on a sloped, solid base.
Damper clamp
We install a damper clamp to keep the damper from closing fully on a gas log set, per code. It is a small part that keeps the flue venting safely.
Mortar hawk
Used to carry and apply refractory mortar during crown and top-course repairs. It keeps the mortar workable so the joints pack tight and cure hard.
Real results
Before and after.
Rusted cap replaced on a Smithville ranch
Before
The original galvanized cap on this 1985 Smithville ranch had rusted through in two spots and was hanging by one screw. Rain had been running down the flue for at least a year, and the crown showed hairline cracks near the flue tile.
After
We repaired the crown with crown mix, let it cure, then installed a 24-gauge stainless cap with a welded screen and a 2-inch drip edge. The leak into the firebox stopped immediately. Total job time was just under 4 hours.
Custom cap for an oversized flue in Leeds Point
Before
This Leeds Point home had a 13x18-inch rectangular flue, and no stock cap would fit. The homeowner had tried a big-box cap that rattled in the wind and let water in around the edges. The firebox showed rust stains from years of leaks.
After
We measured to the half-inch and fabricated a custom stainless cap with a welded spark screen. It sits flush with no gaps. The rust stains stopped spreading after the first dry month, and the draft test pulled clean.
Animal nest removed and flue capped in Pomona
Before
A Pomona homeowner heard scratching in the flue every spring. The cap had blown off in a storm two years earlier and was never replaced. Squirrels had built a nest on the smoke shelf, and the draft was weak enough that smoke rolled into the room.
After
We pulled the nest, swept the flue, and inspected the liner with a camera. The tile was sound, so we installed a stock stainless cap with 5/8-inch mesh. The scratching stopped, and the draft test pulled strong with no smoke roll-out.
Problems we solve
Chimney problems a new cap solves in Galloway
Most chimney damage we see in Galloway starts at the top. These are the problems a correctly installed cap prevents, and what happens when they are ignored.
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Animals nesting in the flue
A cap with 5/8-inch welded mesh keeps animals out while letting smoke through. We pull the nest, inspect the liner for damage, and install the cap on the same visit. Spring and fall are when we see the most nests in Galloway.
Rusted or missing cap after a storm
We replace rusted caps with 24-gauge stainless that lasts 15 to 20 years. If a storm just took yours off, call us. We keep stock caps on the truck and often get there the same day.
Smoke backdraft on windy days
We measure the flue's actual cross-section and size the cap to match. If the screen is clogged, we clear it or replace the cap. Most backdraft complaints we get in Galloway trace back to an undersized cap.
Proof you can check
Licensed, certified, and reviewed in Galloway
✓
CSIA Certified Chimney SweepChimney Safety Institute of America
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NFI CertifiedNational Fireplace Institute
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NCSG MemberNational Chimney Sweep Guild
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New Jersey Home Improvement Contractor (HIC) LicenseNew Jersey Division of Consumer Affairs
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OSHA 10Occupational Safety and Health Administration
Most chimney cap installs in Galloway run $250 to $650 in 2026, including the cap, anchors, sealant, and labor. A stock stainless cap on a single-flue chimney sits at the low end. Custom caps for oversized or multi-flue chimneys push toward the top. If you need a chimney cap replacement cost Galloway New Jersey quote, call us and we will give you a number over the phone.
Thrive Sharp does. We are based in Galloway and have been installing and replacing caps here since 2021. We carry stock caps for common flue sizes on the truck and fabricate custom ones in 5 to 7 days. Call (844) 803-5147 and we will schedule a roof inspection, usually within 3 to 5 days.
Yes, if you burn wood or have a masonry chimney. Galloway gets 45-plus inches of rain a year, and an uncapped flue takes that water straight into the mortar and liner. A cap also keeps squirrels and birds out and catches embers before they hit the roof. It is the cheapest protection you can put on a chimney.
A stock cap install takes 2 to 3 hours from arrival to cleanup. That covers the roof inspection, measuring, mounting, sealing, and a draft test. Custom caps add a 5 to 7 day fabrication window before the install visit. Once the cap is on the truck, the roof work itself is under 90 minutes.
More services
Other chimney services we handle in Galloway
Chimney Repair Near MeIf your cap came off because the crown or flue tile is crumbling, the repair goes deeper than the cap. We fix the crown, tuckpoint the joints, and then install the new cap so it has something solid to anchor into.Explore →
Chimney Masonry RepairSpalling brick and crumbling mortar joints let water in behind the cap. We rebuild the top courses with firebrick and refractory mortar, then set the cap on a sound crown. Most Galloway masonry repairs finish in one day.Explore →
Chimney Crown RepairA cracked crown is the number one reason caps come loose. We pour a new crown mix over the existing crown, slope it away from the flue, and anchor the cap into the fresh concrete. That gives the cap a 15-year base.Explore →
Chimney ReliningIf rain has been running down an uncapped flue for years, the clay flue tile may be cracked. We install a stainless steel liner sized to your appliance, then cap it. That combination stops water damage and restores draft.Explore →
Chimney Cap RepairSometimes the cap just needs new anchors and sealant, not a full replacement. We inspect the mesh, the body, and the mounting points, and if the cap has life left we resecure it for a fraction of a new install.Explore →
Chimney MaintenanceAn annual visit keeps the cap tight, the flue clear, and the crown sealed. We sweep the flue, check the cap anchors, and re-seal any gaps. Galloway homeowners who book yearly maintenance rarely need emergency repairs.Explore →
Fireplace RepairA cap that is too small can cause smoke to roll back into the firebox. We check the damper, the firebox mortar, and the smoke shelf, then size the cap to fix the draft. Most draft problems trace back to the cap or the damper.Explore →
Emergency Chimney RepairStorm tore your cap off and water is coming in? We tarp the flue, secure what is left of the cap, and schedule the permanent fix. Emergency calls in Galloway get same-day response when the weather allows roof access.Explore → Ready when you are
Get your chimney cap installation in Galloway, New Jersey scheduled
A missing cap costs you a liner. We install stainless steel caps with a 5-year workmanship warranty and a written price before we climb the ladder. Call (844) 803-5147 and we will book your roof inspection, usually within 3 to 5 days.
Book My Install (844) 803-5147 →
Request an appointment
Get your chimney looked at
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.
Call anytime(844) 803-5147Email the officeinfo@thrivesharp.shop
Office hoursOpen 24 hours · 7 days a week