Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Fast, Reliable Chimney Sweep Across St. Johns
A standard chimney sweep in St. Johns, FL typically runs $189 – $329 before any repairs, and most homes in Durbin Crossing, Julington Creek Plantation, and Fruit Cove can be serviced within a few days of calling. The price depends on the chimney type, accessibility, and how long it’s been since the last cleaning. Call (904) 453-7823 and a real person answers, day or night. We’ll give you a written price before any work starts, and you’ll know the technician’s name and see their photo before we arrive.
What makes chimney work different in St. Johns is the salt air. It’s not something homeowners in Jacksonville or Orange Park think about the same way. Here, the Atlantic is close enough that metal components on your chimney corrode faster than they should. We see it on nearly every inspection we do in the newer subdivisions along County Road 210 and Longleaf Pine Parkway. If your chimney hasn’t been opened in a few years, there’s a good chance the cap is rusting and creosote is bonding to the flue walls in a way that takes more than a basic brushing to remove. Our Chimney Sweep team knows exactly what to look for before it becomes a five-figure repair.
Why Alcott Chimney Jacksonville Is St. Johns’s Preferred Chimney Sweep Company
Alcott Chimney Jacksonville has been part of the Threshold Group family since 2002, and every technician who steps onto a St. Johns property has passed a background check and identity verification before they ever ring the doorbell. That’s the Threshold Standard, and it’s not something we offer as an upgrade. You get the technician’s name, photo, and uniform description before the visit. When the doorbell rings, they show a photo ID badge. No exceptions.
Ruben Castellano runs the Jacksonville operation with a simple rule: the person you’re told to expect is the person who shows up. That matters if you’re home alone with young children, if you’re an older homeowner who doesn’t open the door to strangers, or if you just want to know exactly who’s walking around your house. Every job includes a written price before work begins and a written guarantee on any repair. If a repair fails within the coverage period, the second visit is free. That’s the 365-Day Done Right Promise, and it applies to every St. Johns customer we serve.
We’re not the cheapest chimney company in St. Johns, and we don’t try to be. We’re the company that tells you what’s actually wrong, shows you the camera footage to prove it, and tells you plainly when something can wait. Homeowners in Aberdeen, Bartram Springs, and Beachwalk call us because they’re tired of companies that show up late, push repairs they can’t verify, and disappear when something goes wrong. We’re still here a year later if it does.
Styles & brands we work with





Chimney Maintenance in St. Johns
Chimney Maintenance in St. Johns is not optional if you own a home with a fireplace, especially a prefab metal chimney in the newer subdivisions. The humid, salt-laden air accelerates corrosion on caps, flashing, and chase tops. Creosote, the tar-like buildup that causes chimney fires, forms faster here because moisture makes it sticky and hard to remove. A maintenance visit typically runs $189 – $269 for a standard single-flue system and includes a visual check of the cap, crown, flashing, and firebox along with the sweep itself.
Annual Sweep for Coastal Homes
Most St. Johns fireplaces sit idle for nine months of the year. Birds, squirrels, and wasps move into unused flues during that stretch. We remove nests and debris before the first burn of the season, and we check for rust that may have formed while the chimney sat dormant.
Creosote Removal Before It Glazes
Humidity in St. Johns keeps creosote soft and tacky at first, but after two seasons of intermittent burning it hardens into a glaze that a standard wire brush can’t remove. If you’ve been burning wood occasionally for two years without a sweep, you may be looking at a chemical treatment or rotary cleaning, which runs $329 – $429. Better to catch it early.
Chimney Sweep Services in St. Johns
Chimney Sweep Services in St. Johns cover everything from a basic brushing to full creosote removal, soot removal, and fireplace cleaning. A standard sweep on a masonry chimney in an older St. Johns home runs $189 – $249. A prefab metal chimney, which is what most newer homes along Race Track Road and Bartram Park Boulevard have, runs $219 – $329 because it requires different tools and a gentler touch to avoid damaging the thin metal liner. We’ll tell you which one you have before we quote, and the written price is yours before we start.
Fireplace Cleaning for Open-Concept Homes
New construction communities in St. Johns lean heavily on open-concept designs with direct-vent gas fireplaces. These still need cleaning. Dust, pet hair, and construction debris from the build itself accumulate in the burner and log set, and a dirty gas fireplace burns inefficiently. A gas fireplace cleaning runs $149 – $199.

Soot Removal from Masonry Flues
Older brick homes in established St. Johns neighborhoods often have masonry chimneys that haven’t been cleaned in years. Soot removal on these systems can take longer and may require a rotary head if the buildup is heavy. We’ll show you the before-and-after photos so you can see what was in there.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in St. Johns
We carry and install professional trade materials including DuraFlex liner systems, HeatShield resurfacing products, Gelco caps, and Olympia Chimney components. These are the brands chimney professionals specify, not box-store substitutes. When a St. Johns home needs a new cap or a liner repair because salt air has done its damage, we stock the common parts locally so turnaround is fast. If you have a DuraFlex liner that’s showing rust, we can match it. If your Gelco cap is corroded through, we replace it with stainless steel. You’ll know exactly what brand and part is going on your chimney before we install it, and it’s covered in writing.
See the difference
Before
After
Before
After
Before
AfterCommon Chimney Sweep Problems We See in St. Johns Homes
- Corroded caps on prefab chimneys: Galvanized steel caps in Durbin Crossing and Julington Creek Plantation often rust through in three to five years because of salt spray and morning humidity. Homeowners mistake the resulting water in the firebox for a roof leak, but the chimney cap is the culprit.
- Third-degree creosote in barely-used fireplaces: We regularly find glazed creosote in flues that have only been used a handful of times. The humidity in St. Johns makes early creosote sticky, and it hardens between burns. By the time we’re called, a standard brush won’t remove it.
- Animal nests in unused gas flues: The long off-season means direct-vent gas fireplaces become nesting sites for birds, squirrels, and wasps. A blocked exhaust flue on a gas fireplace sends carbon monoxide back into the house. We pull nests out of flues every fall before the first cold snap.
- Rust-through at the flashing on factory-built chases: The metal flashing where the chimney meets the roof corrodes within five years on coastal St. Johns homes. Water seeps into the chase, rots the framing, and the homeowner sees a ceiling stain and thinks it’s the roof. By the time we open the chase, the repair is often larger than a simple flashing replacement.
Pricing for Chimney Sweep in St. Johns, FL
A standard chimney sweep in St. Johns runs $189 – $329 for most homes. Prefab metal chimneys on the newer subdivisions sit at the higher end because the equipment and care required are different. Gas fireplace cleaning runs $149 – $199. Creosote removal for glazed deposits runs $329 – $429 when a rotary or chemical treatment is needed. Level 1 inspections are included with every sweep. Level 2 inspections, which we recommend for any coastal home that hasn’t been opened in three years or more, run $249 – $349 and include a camera scan of the full flue. What affects your price: chimney height, roof pitch, how long it’s been since the last cleaning, and whether animals have moved in. You’ll get a written price before any work begins. Call (904) 453-7823 for a free estimate.
One thing worth saying plainly: in Durbin Crossing, our tech found a DuraFlex liner with first-degree creosote and a corroded galvanized cap on a direct-vent gas fireplace that hadn’t been opened since construction. We removed a wasp nest from the flue, replaced the cap with stainless steel, and scheduled a follow-up Level 2 inspection before burn season. That’s a typical call for us in St. Johns. The homeowner assumed a gas fireplace in a new house didn’t need attention. It did.
We Also Serve Cities Near St. Johns
Alcott Chimney Jacksonville serves homeowners throughout the greater Jacksonville area. If you’re in Jacksonville, Orange Park, Jacksonville Beach, or Atlantic Beach, we provide the same background-checked technicians, written pricing, and 365-Day Done Right Promise. See our full Chimney Sweep service area for details on scheduling in your neighborhood.
Serving St. Johns, FL - Our Local Coverage Area
We’re based in the St. Johns area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Chimney Sweep in St. Johns
A prefab metal chimney in St. Johns should be swept every year, even if you only burn occasionally. The salt air accelerates rust on the metal components, and the humidity makes creosote stick and harden faster than it would inland. Skipping a year on a prefab system here is riskier than skipping a year on a masonry chimney in a drier climate. Call (904) 453-7823 to schedule your annual sweep before burn season, and we’ll give you a written price before we start.
Your chimney cap rusts quickly in St. Johns because the Atlantic air carries salt, and salt accelerates corrosion on galvanized steel. Most new construction homes here are built with galvanized caps, not stainless steel. A galvanized cap in a community like Durbin Crossing or Julington Creek Plantation can rust through in three to five years. We replace them with stainless steel, which costs more upfront but lasts dramatically longer in this climate. If your cap looks rusted, call us for a free estimate on replacement.
Yes. Direct-vent gas fireplaces in St. Johns new construction homes need cleaning at least every other year, and the flue needs an annual visual check. Birds and squirrels move into unused flues during the long off-season, and a blocked exhaust sends carbon monoxide back into the house. Even without animals, dust, pet hair, and construction debris from the original build collect in the burner. A gas fireplace cleaning runs $149 – $199. If you’ve never had your gas fireplace opened since you bought the house, call (904) 453-7823 and we’ll take a look.
A Level 1 inspection is a visual check of the accessible parts of the chimney and is included free with every sweep we do in St. Johns. A Level 2 inspection goes further: we run a camera through the full flue, inspect the chase, flashing, and cap from the roof, and document everything with photos you can see. For coastal St. Johns homes that haven’t been opened in three years or more, we recommend a Level 2, which runs $249 – $349. It’s the only way to see rust-through inside a prefab flue before it leaks into your chase. Call (904) 453-7823 to schedule one.
The cap fails first, and it’s usually the galvanized one the builder installed. On masonry chimneys, the crown cracks next because the freeze-thaw cycles and salt crystals work into hairline fractures. Flashing goes third, though on factory-built metal chases the flashing can fail nearly as fast as the cap, especially where the chase meets the roofline. What we replace most often in Durbin Crossing and Julington Creek Plantation is a corroded cap. Catch it early and it’s a few hundred dollars. Let it go and you’re dealing with water inside the chase, which can run into the thousands. Call (904) 453-7823 for a free estimate before burn season.
Ready to book your chimney sweep in St. Johns? Call (904) 453-7823 now. A live person answers. We’ll give you a written price before any work starts, offer a free estimate, and you’ll know your technician’s name and see their photo before we arrive. Every job includes a written guarantee and the 365-Day Done Right Promise. If the work isn’t right, we come back and make it right, free.
Written by Ruben Castellano, Owner at Alcott Chimney Jacksonville, serving St. Johns and surrounding communities with chimney sweeping, inspection, and Gas Fireplace Repair in St. Johns.