Level 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.
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AfterWhy Coventry Homeowners Choose HeatShield Chimney Cleaning
We provide independent HeatShield service in Coventry, CT, and we handle the problems other sweeps miss. HeatShield is a ceramic flue sealant, not a liner, and most of the failures we fix trace back to that distinction getting ignored. Wendell Pike and our crew have worked on hundreds of HeatShield installations across Tolland County, and we know exactly what happens when this product gets applied wrong, inspected too late, or asked to do a job it was never meant to do. We are not affiliated with HeatShield and we do not claim to be. What we are is a locally owned chimney company that has been inside more Coventry flues than any franchise outfit could find with a GPS, and we will give you a straight answer about what your HeatShield coating actually needs. Call (860) 743-7732 for a free estimate.
Why Trust Top Hat Chimney for Your HeatShield Chimney Cleaning?
HeatShield is a specific product with specific chemistry, and cleaning it is not the same as cleaning a bare tile flue. The Cerfractory coating bonds to the flue surface, and if a sweep goes at it with aggressive wire brushes or chemical treatments meant for raw masonry, that coating can flake, delaminate, or get compromised without the homeowner ever seeing it. We clean HeatShield-coated flues with methods that preserve the coating while removing the creosote behind and around it, because the creosote hiding behind loose coating is how chimney fires still happen in “sealed” flues.
Wendell Pike founded Top Hat Chimney in 1999. He did his coursework in building and construction technology at Southwestern College in Chula Vista before spending the better part of two decades on roads like Route 31 and Route 44, learning what old Connecticut chimneys do when the freeze-thaw cycle hits them. He has been inside enough HeatShield applications to know when the coating is doing its job and when it is quietly failing at the mortar lines. That is the difference between a sweep who knows the brand and one who just knows the name.
Every HeatShield job we do in Coventry comes with the 90-Day Done Right Promise in writing. If the work is not right, one call brings us back at no charge. That is not a slogan. It is stamped on the paperwork.
Common HeatShield Chimney Cleaning Problems We Fix in Coventry
- HeatShield Cerfractory flaking behind third-degree creosote. This is the one we see most in Coventry, where homeowners burn their own oak and maple that went into the stove the same season it was split. Unseasoned hardwood produces thick, sticky creosote that can bond over a HeatShield coating. If the coating was not fully cured or the flue was damp when it was applied, the creosote and heat cycling will start lifting the Cerfractory right off the flue tiles. A standard sweep just brushes the surface and leaves the problem hidden underneath.
- Joint failure at mortar lines in older chimneys. Coventry has stock that goes back to the 18th century, and those fieldstone and brick chimneys move. Thermal cycling, heavy snowpack, and freeze-thaw flex the mortar joints, and HeatShield’s Joint Repair System is only as good as the mortar it is sealing. When the joints under the coating crack, you get the same smoke and gas leakage the product was supposed to fix. We see this regularly in original colonial chimneys around town.
- Water intrusion behind Cerfractory causing brick spalling. HeatShield seals from the inside, but it does not fix a bad crown or missing flashing on the outside. Water gets in through the masonry, freezes behind the HeatShield coating, and pops the brick face off from behind. Coventry’s inland winters, with heavier snow and deeper cold than coastal Connecticut, accelerate this. If we find water damage behind a HeatShield coat, the flue work is only half the fix; the crown and chase top need attention too.
- Premature delamination from improper prior application. HeatShield has a specific application process: correct surface prep, correct temperature window, correct cure time. When a previous company applied it in cold weather, over dirty flue tiles, or without proper smoothing and curing, the coating starts to peel in sheets within a year or two. We have re-done more than a few of these in Coventry, and the homeowner usually had no idea the first application was the problem until we put the camera up.
- Undetected cracked flue tiles behind HeatShield coating. HeatShield can bridge small cracks, but it does not rebuild a structurally failing flue. If the tile behind the coating has shifted or split badly, the HeatShield moves with it and loses its seal. The only way to catch this is a Level 2 camera scan, not a visual inspection from the top or the firebox. In Coventry’s older capes and colonials, we find these hidden cracks more often than homeowners expect.
HeatShield Parts & Our Repair-vs-Replace Approach
We use genuine HeatShield Cerfractory sealant and CeCure components whenever they are available. HeatShield’s chemistry is proprietary, and the way it bonds, cures, and flexes under heat load matters more than saving forty dollars on a substitute. We do not substitute generic refractory material on a HeatShield job. If a customer has a HeatShield-coated flue with extensive underlying masonry damage that is beyond what the coating can realistically bridge, we tell them plainly: a stainless liner and proper Chimney Cap & Crown services are the better long-term fix. We will not reapply HeatShield over a failing structure when a DuraFlex or Gelco liner will give them twenty years of reliable service instead of another coat that peels again. That honesty is why Coventry homeowners keep our number in their phones. If you are looking at a repair quote, call (860) 743-7732 for a free second opinion before you sign anything.
Our HeatShield Service Process - Step by Step
- 1
Camera diagnosis first. Before we recommend any HeatShield work in Coventry, we run a Level 2 camera scan through the flue. We look at the condition of the existing HeatShield coating, the mortar joints underneath, and any creosote buildup behind loose areas. You see the footage. We explain it in plain English. If it does not need doing, we will tell you.
- 2
Targeted cleaning and surface prep. We remove creosote without damaging the HeatShield coating. If we find loose or flaking Cerfractory, we remove only the material that has lost its bond. The flue surface is then cleaned and prepped to the manufacturer’s application standards: dry, debris-free, and within the correct temperature range. We do not rush this step in a Coventry winter, because the chemistry will not cure right in a cold, damp flue, and we refuse to leave you with a coating that peels in eight months.
- 3
HeatShield application to the damaged areas. We reapply HeatShield Cerfractory sealant to the eroded, cracked, or delaminated sections using the manufacturer’s application method. For joint failures, we use the HeatShield Joint Repair System on the mortar lines before resurfacing. For more extensive flue damage where HeatShield is appropriate, we move to the CeCure Sleeve Relining or Eliminator Resurfacing System, depending on what the camera showed us.
- 4
Verification and documentation. After the application cures, we run the camera again to verify the coating is continuous, even, and properly bonded. We check the smoke chamber and firebox at no extra charge while we are there. You get photos and a written report of what we found, what we did, and what condition the rest of the chimney is in. For insurance purposes, that documentation matters.
- 5
Your 90-Day Done Right Promise. If anything we did is not holding up, call us. We come back at no charge. That promise is on your invoice in writing. It applies to every HeatShield service and repair we perform in Coventry.
HeatShield Products We Service & Install in Coventry
We work with the full HeatShield product range: the Cerfractory Flue Sealant for isolated cracks and surface erosion, the Joint Repair System for failing mortar lines, the CeCure Sleeve Relining System for larger gaps that need more than a surface coat, and the Eliminator Resurfacing System for complete flue resurfacing when the tiles are intact but the coating has failed. We keep genuine HeatShield materials stocked for the most common Coventry repair scenarios, which means we are usually back on your roof with the right product in the truck the first time. For multi-brand jobs, we also install and service DuraFlex and Gelco liners when a stainless system turns out to be the correct long-term answer for the chimney.
We Also Service These Brands
HeatShield is not the only product on our truck. We also install and service DuraFlex stainless liners and Gelco chimney systems, plus products from Olympia Chimney, Famco, and Copperfield. If your Coventry home has a mixed setup or you are weighing HeatShield against a stainless liner, we can give you a straight comparison without a manufacturer’s sales pitch behind it.
FAQs - HeatShield Chimney Cleaning Service in Coventry
No, and we will say that plainly. We are an independent HeatShield service provider, not a factory-authorized dealer. What that gives you in Coventry is an honest assessment of when the product makes sense and when it does not. We have no quota to hit and no manufacturer to please. We recommend HeatShield when it fits the flue condition and the budget, and we say so when a stainless liner is the smarter call.
Yes. We use genuine HeatShield Cerfractory sealant and CeCure components whenever they are available, because the chemistry is proprietary and the cure behavior is specific. The cost difference on substitutes is small, and a failed reapplication from cheap material costs you far more in the long run. For the flue tiles, mortar, and other structural components, we select parts based on what is correct for your chimney, not what is cheapest on the shelf.
A straightforward HeatShield Cerfractory sealant application over isolated cracks usually takes four to six hours, including cleaning, prep, application, and initial cure. A full CeCure sleeve reline or Eliminator resurfacing on a taller colonial chimney takes longer, often a full day or a two-visit job. The curing time depends heavily on the season. In Coventry’s colder months, we may need to schedule around a stretch of milder weather so the coating cures correctly, unlike our HeatShield service in Glastonbury where conditions differ. Call (860) 743-7732 for an estimate specific to your chimney.
Sometimes, but not always. HeatShield bonds to the existing surface, so if a previous company applied a silicone-based or polymer sealant, the new Cerfractory may not bond correctly over it. We have to camera-inspect first to see what is actually in there, how thick it is, and whether it is stable. In many cases, we remove the old coating first and then reapply HeatShield to a clean surface. In some older Coventry homes, we find previous patch jobs that have to be fully stripped before a proper application is possible.
Yes, and that is exactly what the product was designed for. HeatShield’s Cerfractory sealant bridges small cracks and gaps in flue tiles, restoring a continuous, gas-tight surface without reducing the flue diameter the way a liner does. But the key word is “small.” If your chimney has large gaps, shifted tiles, or deteriorated mortar joints beyond what a surface coat can handle, HeatShield alone will not do the job. We have seen Coventry flues where a previous company applied HeatShield over major structural problems and the homeowner did not know until the chimney fire scare, so we are particular about checking the underlying tile condition before we apply anything, just as we do with our HeatShield service in East Hartford.
No. That is one of the product’s real advantages. HeatShield applies at roughly a quarter-inch thickness and conforms to the existing flue shape. Unlike a stainless liner, which reduces the flue diameter, HeatShield keeps your original draft and venting capacity. In older Coventry fireplaces that were built with an undersized flue to begin with, this matters. A liner might drop you below what the firebox needs. HeatShield keeps the opening essentially the same.
Yes, with a caveat. HeatShield is rated for wood stove applications and handles the higher flue temperatures a stove produces. But if your wood stove flue has heavy creosote glaze behind or through the existing coating, we have to deep-clean and remove that glaze before application. That is exactly the scenario we see in Coventry when a homeowner burned a full cord of green oak over one winter. The coating is good; the prep is what decides whether it lasts.
HeatShield chimney cleaning in Coventry typically runs $200 to $350 depending on flue height and creosote condition. A HeatShield Cerfractory spot repair usually starts around $500 and goes up based on the areas needing resurfacing. A full CeCure sleeve or Eliminator resurfacing system runs higher, and we will give you an exact number before work starts. We also offer $40 off any repair over $200, a free second opinion on any written estimate, and 10% off always for seniors and veterans. Call (860) 743-7732 for a free estimate specific to your flue.
Book Your HeatShield Service in Coventry, CT
If you have a HeatShield-coated chimney in Coventry and you are not sure what condition the coating is actually in, call us. We will camera-scan the flue, show you the footage, and give you a straight verdict. No upsell. No price changes at the door. Wendell Pike puts his name on every job, and he will be the one you see in town afterward. Call (860) 743-7732 today.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Coventry and Tolland County since 1999.