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.
HeatShield Chimney Inspection in Fresno: What to Know First
HeatShield chimney inspection in Fresno typically runs $189 – $349 depending on the level of inspection your flue needs, with most inspections finished the same day. We’re an independent HeatShield service provider – not affiliated with the manufacturer – and we inspect, repair, and resurface HeatShield systems using the same trade-grade materials specified for the product line. If you own a HeatShield liner or resurfaced flue and want an honest read on its condition, call (559) 215-1714 and we’ll walk you through what to expect before we ever touch the roof.
This page is for Fresno homeowners who already have HeatShield in their chimney and need to know whether it’s holding up. If you’re not sure what you have, we’ll figure that out too. Ruben Castellano and our crew have opened plenty of Fresno flues and found HeatShield in every condition from nearly new to needing a full liner replacement. Tell us what you’re seeing and we’ll tell you what it actually means.
How HeatShield Products Fail – and How We Fix Them
HeatShield is a ceramic-based resurfacing system, not a rigid liner. It gets troweled or sprayed inside an existing flue, so its failure modes are different from stainless steel. Here’s what we actually find on HeatShield jobs in Fresno:
- Hairline surface cracks in HeatShield’s standard Cerfractory formula. These form when the underlying clay tile expands and contracts through Fresno’s hot summers and cool, damp winters. The ceramic coating can’t flex the way a steel liner does, so stress cracks show up, usually within 5 – 8 years. We catch them early with a camera inspection and seal them before they widen into a safety issue.
- Bond separation at the flue tile joints. The HeatShield coating is only as strong as what it’s applied to. Older Fresno chimneys – especially the craftsman-era homes near the Tower District – often have deteriorating mortar joints behind the resurfacing. When that joint shifts, the HeatShield layer can pull away and leave gaps. Our inspection protocol specifically checks joint bonding because it’s the #1 hidden failure we find.
- Flaking and spalling on vertical surfaces. HeatShield’s Cerfractory line is rated for vertical flue walls, but if the original prep wasn’t done right, you’ll see it flaking off in sheets. We’ve seen this on several Fresno retrofits where the old creosote wasn’t fully removed before resurfacing. If the bond is failing that badly, patching is a band-aid – we’ll tell you straight and usually recommend a full liner replacement.
- Formula mismatch: vertical-grade HeatShield used on a smoke chamber slope. HeatShield makes different products for vertical flues vs. smoke chamber parging. When the wrong formula got applied – and we see this more than you’d think – the material sags and cracks on the sloped surface. Our inspection identifies which HeatShield formula you have and whether it’s actually rated for the surface it’s on.
- Leak paths around the chimney crown and flashing. This one’s not a HeatShield defect, but it kills HeatShield systems. Water intrusion from a cracked crown or failed flashing in Fresno’s rainy season gets behind the ceramic coating and accelerates spalling. We inspect the crown, flashing, and wash as part of every HeatShield inspection because a dry flue is the only flue worth resurfacing.
Styles & brands we work with
Our HeatShield Chimney Inspection Process
Here’s what happens when you call Alcott Chimney Fresno for a HeatShield inspection:
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Call and talk to a live person. You’ll reach someone at (559) 215-1714 around the clock, not a voicemail. We ask what you’re seeing – smoke odor, visible cracks, water in the firebox, or just a scheduled checkup.
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Meet your technician before they arrive. You’ll get the name and photo of the person coming to your door, and they’ll show a photo ID badge when they arrive. Every technician is background-checked and identity-verified through the Threshold Standard before they ever set foot on your property.
- 3
Level 2 camera inspection as the baseline. For any HeatShield system, we start with a camera run up the flue – not just a visual look from the top or bottom. HeatShield failures are often invisible from the fireplace opening, and the camera tells us what’s really going on. You’ll see the footage.
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Written findings and a written price. We walk you through what the camera showed, in plain English, and hand you a written price before any work begins. If the HeatShield is fine, we tell you it’s fine. If it needs sealing, we quote the repair. If it needs replacement, we show you why on the screen.
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Repair decisions that favor the long term. When a HeatShield repair makes sense, we use manufacturer-specified materials. When it’s too far gone, we’re honest about that too – you’ll see the evidence with your own eyes. On jobs where a full reline is the right call, we install DuraFlex stainless liners, which carry their own warranty and won’t have the same flex-crack issues.
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Cleanup, walkthrough, and the 365-Day Done Right Promise. We leave the job site the way we found it, walk through everything we did, and back the work with a written guarantee. If a HeatShield repair fails within the coverage period, the second visit is free.
See the difference
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After
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AfterWhat HeatShield Chimney Inspection Costs in Fresno
Straight numbers, because that’s how we do business:
| Service | Typical Fresno Price Range |
|---|---|
| Level 1 visual inspection (no known issues, recently serviced) | $189 – $249 |
| Level 2 camera inspection (real estate sale, new appliance, known HeatShield concern) | $289 – $379 |
| Level 3 inspection (suspected hidden damage, needs partial demolition) | $600 – $1,200+ |
| HeatShield surface sealing (minor cracks, small area) | $250 – $600 |
| Full flue resurfacing with HeatShield | $2,500 – $4,500 depending on flue height and access |
| Full DuraFlex stainless reline (when HeatShield replacement is the right call) | $3,000 – $5,500 |
What moves the price: flue height (a two-story Fresno home costs more than a single-story ranch), roof access difficulty, how much of the HeatShield coating is compromised, and whether we need to remove a portion of the firebox to reach the smoke chamber. Roof pitch matters too – some of the steeper roofs near Woodward Park take rigging and extra safety time, which is honestly the most expensive part of a lot of these jobs. Call (559) 215-1714 for a free estimate. We’ll give you a written price before any work starts, every time.
Why Fresno Homeowners Call Alcott Chimney Fresno for HeatShield Work
We’ve been serving Fresno homeowners since 2002, and the reason people stick with us on HeatShield work is simple: we tell you what’s actually going on, show you the evidence, and stand behind the fix. Every repair carries a written guarantee. If a repair fails within the coverage period, the second visit is free – that’s the 365-Day Done Right Promise and it’s not an upsell, it’s how every job ends. Our technicians know HeatShield’s product lines well enough to spot the difference between a sound resurfacing job and one that’s about to flake off, and when HeatShield isn’t the right long-term answer, we’re already certified in the alternatives – DuraFlex stainless liners and Gelco products – so you’re never stuck with a single-brand solution. The technician at your door is background-checked, identity-verified, uniformed, and announced to you by name and photo before arrival. That’s the Threshold Standard, and it’s non-negotiable.
FAQs
No. Having an independent company inspect your HeatShield system does not void the manufacturer’s warranty. We’re not doing anything to the coating during an inspection – we’re looking, measuring, and documenting. If we do recommend a repair, we use materials and methods that align with the system’s intended use, and we’ll tell you honestly whether a claim with HeatShield is worth pursuing before you pay us for anything. Call (559) 215-1714 if you want a straight answer on this one.
The most common homeowner-visible signs are flaky or chalky material falling into the firebox, visible cracks in the thoat or lintel area, a persistent smoke smell even when the damper is open, or water stains on the firebox walls after rain. But plenty of HeatShield failures are invisible from the ground – that’s exactly why we run a camera on every HeatShield inspection we do in Fresno. You’ll see the footage with your own eyes, not our word for it.
It depends on the failure. Small hairline cracks and isolated bond failures can often be sealed without tearing everything out, and we’ll quote that honestly when it’s the right call. But if the coating is flaking over more than about 20 – 25% of the flue surface, or if the underlying tile structure is compromised, patching buys you a season at most. In those cases, we’ll recommend a full reline – usually a DuraFlex stainless liner – and show you the camera evidence so you can see exactly why.
Most HeatShield inspections in Fresno are scheduled within a week, and the inspection itself takes 60 – 90 minutes. If you’re in the middle of a real estate transaction and need it done faster, tell us on the call – we keep real estate inspections moving because we know contracts don’t wait. You’ll always reach a live person when you call (559) 215-1714, even at 11 p.m. the night before closing.
Because HeatShield failures start small and internal. A chimney can look perfectly fine from the roof and still have bond separation, hairline cracking, or water damage spreading behind the coating down the middle of the flue. The camera sees what the naked eye can’t, whether you’re looking from above or below. For any HeatShield system in a Fresno home – where our dry heat and seasonal rain put real stress on ceramic coatings – skipping the camera means guessing, and we don’t guess with your safety.
Written by Ruben Castellano, Owner, Alcott Chimney Fresno at Alcott Chimney Fresno, serving Fresno and nearby areas.