Gas fireplace service
Sweep & inspection
Caps & crowns
Flue relining
Masonry repairLevel 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.
Why Jacksonville Homeowners Choose HeatShield Chimney Cleaning
HeatShield chimney cleaning in Jacksonville restores the ceramic flue coating that protects your chimney from creosote, moisture, and the slow structural decay our humid climate accelerates. We’re an independent Jacksonville Heatshield service specialist, not a manufacturer-authorized shop, and we’ve been resurfacing and repairing HeatShield systems across Jacksonville’s older masonry stock since 2002. Our technicians are HeatShield-certified installers who know the chemistry of Cerfractory flue sealant and CeCure relining sleeves well enough to diagnose exactly where a Jacksonville flue is failing and whether it needs a patch or a full resurfacing. If your HeatShield coating is flaking, spalling, or letting moisture through, call (904) 453-7823 for a Level 2 camera inspection and a written price before we touch anything.
Most Jacksonville Chimney Sweep services will sweep your flue and call it done. We go further. HeatShield isn’t a one-time spray, it’s a bonded ceramic system, and here in Jacksonville it fails in predictable ways that a generalist misses. Ruben Castellano and our crew have rebuilt flues from Riverside to San Marco, and we’ve seen the same pattern enough times to know what we’re looking at within the first 30 seconds of a camera scan.
Why Trust Alcott Chimney Jacksonville for Your HeatShield Chimney Cleaning?
HeatShield work lives or dies on preparation. The Cerfractory sealant bonds to the flue tile chemically, not mechanically, which means the tile has to be perfectly clean before application. Skip the wire brushing or leave creosote residue behind, and the coating will delaminate within two years. We don’t skip that step.
Every HeatShield resurfacing we perform in Jacksonville starts with a full Level 2 inspection through a camera, not a mirror and a flashlight. We need to see the flue tile joints, the smoke chamber transition, and the crown condition before we can tell you honestly whether HeatShield is the right fix or whether you’re better off with a CeCure sleeve reline or a full DuraFlex stainless system. Ruben Castellano learned early in this trade that the homeowner who sees the camera footage makes a better decision than the one who takes your word for it. So we show you the footage. Every time.
We carry genuine HeatShield products – Cerfractory Flue Sealant, CeCure Sleeve Relining System, ChimneySaver Crown Coat, and FireGuard Flue Liner. We use OEM because the system is engineered as a single bonding unit. Mixing aftermarket refractory into a HeatShield application can break the chemical bond, and we won’t risk that on your flue. For minor void sealing where the structural bond is intact, we use high-temp silicone or refractory caulk from Rutland or Imperial, but we’ll always tell you if a full reapplication is the honest long-term play.
Styles & brands we work with
Common HeatShield Chimney Cleaning Problems We Fix in Jacksonville
HeatShield doesn’t fail randomly. In Jacksonville, it fails in four specific ways, and each one points to a different repair. Here’s what we see in the field:
- Pinhole leaks and hairline cracks in Cerfractory coating. Jacksonville’s humidity cycle, hot afternoons followed by damp nights and heavy rain, causes the flue tile and the Cerfractory to expand and contract at slightly different rates. Over years, that thermal cycling opens pinhole leaks in the coating. These pinholes let acidic creosote and moisture reach the flue tile underneath, which starts the deterioration over again. We find these with a camera scan, and we can often resurface the affected area in a single visit if the surrounding bond is still solid.
- Spalling and flaking of ChimneySaver crown coating. The crown is the concrete cap at the top of your chimney, and HeatShield ChimneySaver is the flexible coating that protects it from water. Jacksonville’s salt air and afternoon thunderstorms beat on that coating hard. After 5 to 8 years, we commonly see ChimneySaver flaking away from the crown edge, especially on homes within a few miles of the Intracoastal. When water gets under the flaking edge, it works into the crown itself, and then into the masonry below.
- CeCure sleeve separation at flue tile joints. CeCure sleeves are designed to reline an existing flue without knocking out the old tile. But in Jacksonville homes with unlined or partially lined chimneys, especially the older brick bungalows in Riverside and Avondale, the sleeves can separate where flue tile sections meet. The clay tiles shift slightly over decades as Jacksonville’s sandy and expansive clay soils settle, and that movement pulls the sleeve joints apart. We’ve pulled CeCure sleeves out of chimneys where the gap at the first tile joint was wide enough to slide a putty knife through.
- Erosion at the firestop where FireGuard meets the smoke chamber. FireGuard flue liners are built for high-temperature gas and wood exhaust, but the transition point where the liner meets the smoke chamber is a weak spot. If the original install left a gap, or if years of creosote have eaten at the firestop sealant, you get creosote and carbon monoxide intrusion into the home. We see this most often in 1970s-1990s frame homes in Arlington and Mandarin where the original fireplace was built with a minimal smoke chamber transition.
- Delamination from improper original prep. This one isn’t climate-driven. It’s installer-driven. Some out-of-state or fast-franchise sweeps will spray HeatShield Cerfractory directly over a surface that hasn’t been properly wire-brushed and vacuumed. The coating bonds to the creosote, not the tile, and it starts peeling within a year or two. We see this often enough in Jacksonville that we now ask homeowners if they know who applied the original coating, because the failure tells us whether the whole flue needs stripping and redoing from scratch.
HeatShield Parts & Our Repair-vs-Replace Approach
We stock genuine HeatShield Cerfractory and CeCure sleeve materials locally in Jacksonville, which means we don’t wait on a distributor for most resurfacing jobs. The system is designed to be applied as a continuous bonded unit, so when we repair, we use the same manufacturer materials rather than aftermarket substitutes. For small void sealing, a high-temp refractory caulk from Rutland or Imperial does the job, but that’s a patch, not a solution. The honest conversation is when to patch and when to strip and reapply.
Our rule is straightforward: if the structural bond of the existing HeatShield coating is intact over at least 70% of the flue surface, we’ll repair the affected sections. If the coating is flaking across large areas, or if the camera shows separation at multiple tile joints, we’ll recommend a full resurfacing or a CeCure sleeve reline instead. We show you the camera footage either way, and we put the recommendation in writing before any work starts. Call (904) 453-7823 and we’ll come out, scan your flue, and tell you exactly where you stand.
Our HeatShield Service Process – Step by Step
Here’s exactly what happens when you book a HeatShield service with us in Jacksonville:
- 1
Level 2 camera inspection. We run a camera through the entire flue, from the firebox to the crown. You see the footage. We identify whether HeatShield is the right system, whether the existing coating is failing, and what the repair scope needs to be. We look specifically at flue tile joints, smoke chamber transition, and crown condition.
- 2
Surface preparation. This is where HeatShield jobs succeed or fail. We wire-brush the flue surface thoroughly, vacuum out the debris, and confirm the tile is clean enough for Cerfractory to bond. If there’s any creosote residue, the coating won’t hold. We don’t rush this step, and we don’t let anyone else rush us either.
- 3
Repair or resurface. Depending on what the camera showed, we apply HeatShield Cerfractory to the affected sections, seat a new CeCure sleeve, or apply ChimneySaver crown coating to the top. We use genuine HeatShield products and we follow the manufacturer’s application specs exactly.
- 4
Smoke test and verification. After the application cures, we run a smoke test to confirm the flue is drafting correctly and there’s no leakage at the joints. If we find a problem, we fix it before we leave. This test is part of the job, not an add-on.
- 5
Written guarantee. Every HeatShield repair we make carries a written guarantee. If the repair fails within the coverage period, we come back and make it right at no charge. That’s our 365-Day Done Right Promise, and it’s not negotiable.
See the difference
Before
After
Before
After
Before
AfterHeatShield Products We Service & Install in Jacksonville
We service and install the full HeatShield product line for Jacksonville homeowners:
- HeatShield Cerfractory Flue Sealant – the ceramic coating that bonds to flue tile to seal cracks, gaps, and pinhole leaks. We apply this during resurfacing jobs throughout Jacksonville, from historic brick homes in Avondale to newer construction in the Southside.
- HeatShield CeCure Sleeve Relining System – the stainless-and-ceramic sleeve system that relines a damaged flue without removing the original tile. We stock CeCure sleeve components locally for faster turnaround on reline jobs.
- HeatShield ChimneySaver Crown Coat – the flexible waterproof coating for chimney crowns, which takes a beating from Jacksonville’s thunderstorms and salt air. We recommend this on nearly every older masonry chimney we inspect in Mandarin and Arlington.
- HeatShield FireGuard Flue Liner – the high-temp liner system for gas and wood-burning fireplaces where the flue needs full protection. We see FireGuard on many 1990s and 2000s homes in Jacksonville.
We Also Service These Brands
HeatShield is one system we know deeply, but we’re not married to it. We also install and service DuraFlex stainless steel liner systems and Gelco chimney products across Jacksonville and Heatshield in Orange Park. If HeatShield isn’t the right fit for your flue, we’ll say so and recommend what is. The point is a safe, working chimney, not pushing one manufacturer’s product.
FAQs – HeatShield Chimney Cleaning Service in Jacksonville
The most reliable way is a camera inspection. HeatShield Cerfractory has a distinctive matte gray texture when viewed up close, and the coating typically extends from the firebox up through the flue in a continuous band. Some homeowners have paperwork from a previous sale or install, but many don’t. If you’re not sure, call (904) 453-7823 and we’ll scan the flue and tell you definitively within the first few minutes of the inspection.
Yes, if the tile is structurally sound and the flue is properly cleaned first. The bonding agent in Cerfractory requires a clean, dry surface. We can typically complete a single-flue resurfacing in one visit, but a full Level 2 inspection comes first, and we won’t apply coating over tile that’s already crumbling or shifting. If the tile needs repair first, that changes the scope and the timeline.
HeatShield’s manufacturer warranty covers the Cerfractory material itself, but the labor and workmanship warranty comes from the company that installed it. That’s why our written guarantee matters. We back every HeatShield repair with our own written guarantee, and if the repair fails within the coverage period, the second visit is free. We’re not an authorized HeatShield dealer, so we don’t process manufacturer warranty claims, but we stand behind our work directly.
HeatShield Cerfractory can be applied to gas flues in many cases, but it depends on the flue tile condition and the appliance’s venting requirements. Gas exhaust is cooler and more acidic than wood smoke, which affects how coatings perform. We’ll inspect the flue, check the appliance specs, and give you a straight answer. For some gas fireplaces, a FireGuard liner or a DuraFlex stainless system may be the better long-term solution.
Two words: humidity and thunderstorms. Jacksonville’s humid subtropical climate means flue tile and coating materials absorb moisture every summer afternoon. Then the sun comes out and the tile heats up, causing rapid expansion. The cycle repeats hundreds of times per year, and the micro-stress opens pinhole leaks and hairline cracks in the Cerfractory coating faster than you’d see in, say, Phoenix or Denver. Add salt air near the coast in areas like Heatshield in Jacksonville Beach, and the crown coating degrades faster too. That’s why we recommend a Level 2 inspection every two years for HeatShield-coated chimneys in Jacksonville, not the five-year interval that works in drier regions.
A standard chimney sweep with a camera inspection in Jacksonville typically runs $189 to $289 before any repairs, depending on flue height and creosote condition. HeatShield resurfacing starts around $1,200 for a single flue in good structural shape, and full CeCure relines run $2,500 to $5,000 depending on flue length and access. We give you a written price before any work starts, and the estimate is free. Call (904) 453-7823 for an exact quote on your chimney.
Book Your HeatShield Service in Jacksonville, FL
If your HeatShield coating is failing, or if you’re not sure whether you have HeatShield at all, we’ll come out, run the camera, and show you exactly what’s going on. Call (904) 453-7823 for a free estimate, or to schedule a Level 2 inspection. We answer the phone with a live person, around the clock.
Written by Ruben Castellano, Owner at Alcott Chimney Jacksonville, serving Jacksonville since 2002.