How can I tell if a heat-exchanger crack diagnosis is real?

Three things separate real from fake. First, ask for the combustion analyzer reading — a real crack shows elevated CO in the supply air stream, typically 35 ppm or higher, with the analyzer probe in the airflow downstream of the heat exchanger. Second, ask for photos of the actual crack with a borescope or inspection mirror. Third, ask whether they ran a static pressure test that would explain why a crack would form on equipment of that age. A tech who can produce all three is showing real evidence; a tech who produces none of the three is selling. Real heat-exchanger cracks on properly-maintained Stockton furnaces under 12 years old are rare. Cracks on units past 18 years old running undersized return ducts are common and provable.

Why do these bait ads target Stockton specifically?

Two reasons. First, Stockton has a higher proportion of older heating equipment than coastal Baldwin County because winters here are colder and gas/propane furnaces are common — older furnaces give the sales tech more material to work with on a hard close. Second, Stockton homeowners typically don't have a long-term HVAC relationship with a single contractor the way Eastern Shore homeowners often do, so a Facebook ad reaches a homeowner without a comparison point. The sales script works better on a one-shot customer than a returning one.

What does an honest October heating tune-up actually include?

Combustion analysis with a calibrated analyzer (CO ppm, O2 percentage, stack temperature, efficiency calculation), heat exchanger visual inspection with photo documentation if any concern, gas pressure verification at the manifold, blower motor amp draw and capacitor microfarad test, igniter and flame sensor inspection, condensate drain check on high-efficiency units, thermostat verification, and a written report. About 75 to 100 minutes on site for a single-system Stockton home. The honest version is in the same general price band year-round from contractors who don't run seasonal pricing — meaningfully more than the $59 bait, well under the four-figure invoices that follow it.

If I already paid for a fake repair, what can I do?

Get a second opinion in writing before any further work happens. ACExperts offers a free written second opinion on existing quotes — bring the original invoice, the contractor's diagnostic findings, and any photos they provided. If the original repair was genuinely unnecessary, document everything in writing, file a complaint with the Alabama Board of Heating, Air Conditioning & Refrigeration Contractors (the licensing authority), and consider disputing the charge with your card issuer. Most legitimate consumer protection actions on HVAC fraud start with the licensing board, not small claims court.

October Stockton Heating Quotes: Why the $59 Tune-Up Bait Becomes a Big Sale

Dear future you, reading this in October:

It happens every year in Stockton. A Facebook ad for a $59 heating tune-up shows up from a company you've never heard of. You book it because $59 sounds reasonable. The tech comes out, spends 12 minutes inside the air handler, and "finds" a four-figure heat-exchanger crack that doesn't actually exist.

Sincerely, your August self who wishes you'd read this in time.

That's not a hypothetical. Walk into enough Stockton homes for second opinions and you'll hear the same story repeatedly — a "crack" the previous contractor diagnosed without running a combustion analyzer. The crack is the close. The $59 ad is the open. Everything in between is a sales script.

Here's how the mechanic works, why it targets Stockton specifically, and what to ask the tech the next time the truck pulls up.

The bait — what $59 actually buys

Real talk on what fits inside a $59 service call.

A residential HVAC truck rolling out the door costs the contractor about $95 to $135 per hour fully loaded — wages, fuel, vehicle wear, insurance, supplies, dispatch overhead. A 60-minute service call at $59 is a loss. A 90-minute honest tune-up at $59 is a bigger loss.

Companies running the $59 ad are not covering their costs at the door. They're funding the call from the back end — meaning the tech has to find work to bill on every visit, or the route doesn't pencil out.

That changes the incentive structure. The honest tune-up is a 75-minute appointment with a written report and a checklist. The $59 bait tune-up is a 12 to 18 minute walkthrough whose primary job is to identify a sale. The technician is paid on commission — typically 8 to 18 percent of any repair sold on the visit. A $1,400 sale puts $112 to $252 in the tech's pocket. A clean inspection puts zero.

The math creates the script.

The script — three "findings" that close almost every call

Across enough Stockton second-opinion calls, the same three "findings" come up over and over.

Finding one: heat-exchanger crack. This is the headline diagnosis because it triggers fear — cracked heat exchangers can leak carbon monoxide, and the tech leans on that. Problem is, real heat-exchanger cracks need real evidence: a combustion analyzer reading showing CO in the supply air stream, a borescope photo of the actual crack, and a context that makes a crack physically plausible (older equipment, long-term overheating, repeated short-cycling). The bait diagnosis comes with none of those. The tech says "I can see a crack" without showing you the crack. That's not a diagnosis. That's a sentence.

Finding two: low refrigerant on the cooling side. Same call, same tech, often in the same breath. "While I'm here, I noticed your AC is two pounds low on charge." Refrigerant doesn't disappear unless there's a leak. A leak that loses two pounds in six months is significant — it should show up on the gauges, on a pressure test, on a UV-dye check. None of that gets done. The tech adds two pounds at $98 per pound, the system runs the same as it did before, and the leak (if there even was one) is still there.

Finding three: failing capacitor "about to" go. This one's actually plausible — capacitors do fail with age. But the bait version diagnoses a 32 µF reading on a 35 µF capacitor as "out of spec" when manufacturer tolerance is plus or minus 6 percent (so 32.9 µF is the actual lower bound on a 35 µF unit). A reading of 32 is borderline but not failed. The honest answer is "watch it next visit." The bait answer is "$185 to replace today before it leaves you without heat."

Stack the three findings on one invoice and the $59 call balloons into four figures. That's the close, every time.

Why Stockton

Bait calls work everywhere, but they work better in some places than others. Stockton is one of the better places, and there are specific reasons.

Older heating equipment. Stockton homes lean older and more rural than coastal Baldwin County. Median construction year is meaningfully earlier than Daphne or Spanish Fort, and the proportion of 15-to-25-year-old gas furnaces and propane heat is higher. Older equipment gives the sales tech more material — a 22-year-old furnace will have visible heat-exchanger oxidation, a working capacitor that reads in the lower tolerance band, and refrigerant on the cooling side that's been topped off twice in its life. Each of those becomes a "finding." None of them is necessarily a problem.

Less HVAC competition density. Stockton is the northernmost reach of the ACExperts service area, and the rural drive time means fewer local contractors compete for repeat business. A Mobile-based franchise running a Facebook ad to Stockton zip codes faces less reputational risk than the same ad in Fairhope, where word travels fast. The cost of a bad review in Stockton is lower for the bait company than the cost of a bad review in a tighter community.

Higher heating loads. Sustained sub-freezing weather is realistic 10 to 15-plus nights per winter in Stockton — more than any coastal Baldwin County city. Homeowners are genuinely worried about the heat going out in January. Fear is the bait company's leverage. "If this crack opens up in a 25-degree week, you're looking at no heat for three days while we order the part" is a script line that lands harder in Stockton than in Gulf Shores.

For Stockton-specific context on what real heating-side problems look like and what they actually cost, the Stockton 4th of July HVAC triage post walks the same call-vs-wait math from the cooling side, and the Summerdale Christmas cold-snap post covers what the actual breakdown pattern looks like in north Baldwin County winters.

The four questions that break the script

If a tech is running the bait script, four specific questions will surface it inside three minutes.

"Can I see the combustion analyzer reading?" Real heat-exchanger crack diagnoses come with a printed or screen-shot reading from a calibrated combustion analyzer — CO ppm, O2 percentage, stack temperature. The tech who's selling has either no analyzer in the truck or an analyzer they didn't use. "We don't run combustion analysis on tune-ups" is the tell. Honest contractors run combustion analysis on every gas-furnace tune-up. It's the only way to verify safe operation.

"Where exactly is the crack — can you show me a photo?" Modern HVAC techs carry borescope cameras specifically because heat-exchanger cracks are hard to see by eye and easy to fake by claim. A real crack diagnosis comes with a photo. A bait diagnosis comes with hand-waving toward "the lower section" of the heat exchanger.

"What's the static pressure on the return side, and what's the temperature rise across the heat exchanger?" This is the inside-baseball question. Real heat-exchanger cracks usually have a cause: long-term overheating from undersized return ducts, restricted airflow that pushes the temperature rise past spec, or repeated short-cycling. The tech who actually diagnosed a crack will be able to tell you the static pressure and the temperature rise. The tech who's selling won't know either number.

"What's your year-round diagnostic fee?" Bait companies run a $59 diagnostic in October because they're betting on the upsell. Their normal-month diagnostic is $129 to $179. A flat-pricing contractor charges the same diagnostic year-round. If the tech can't tell you what the fee is in February or July, you're at a bait shop.

You're not interrogating. You're asking the same questions a good doctor would expect from an informed patient. The honest contractor will answer all four without flinching. The bait contractor will start hedging by question two.

What an honest Stockton heating check actually finds

To put the bait diagnoses in context, here's what an honest October check on a Stockton home tends to surface across the broader Baldwin County tune-up population:

Most common real findings:

Capacitor reading several percent below rating, recommend replacement at next visit (not emergency replacement today).
Dirty flame sensor causing intermittent ignition lockout — a quick clean fixes it in under 10 minutes.
Condensate drain partial blockage on high-efficiency units, biocide flush and clear.
Blower wheel buildup reducing airflow, recommend professional cleaning at next major service.
Thermostat calibration drift, recalibrate or replace if old digital model.

Genuine emergency findings (rare but real):

Actual heat-exchanger crack with combustion-analyzer-verified CO presence — uncommon, almost exclusively on furnaces past 18 years old.
Refrigerant leak on cooling side with pressure-test confirmation — requires leak repair plus recharge, not just topping off.
Failed inducer motor or pressure switch — real safety lockout, real part replacement in the low-to-mid hundreds.

That's the baseline. A real October tune-up of a Stockton furnace finds something replaceable on roughly half of visits, but the average dollar value of what it legitimately finds is far below four figures. The big-ticket number is what shows up when the script runs, not what shows up when a tech is actually looking.

How to schedule without getting baited

Three rules if you want a Stockton heating check in October without the upsell theater.

Rule one: book before the ad campaign starts. The Facebook ad cycle in north Baldwin County typically lights up the first week of October and runs through Thanksgiving. Booking your tune-up in late September, before the ad campaign hits, dodges most of the bait infrastructure entirely. The contractors running tune-ups in late September are the year-round-pricing ones, because the bait shops haven't ramped marketing yet.

Rule two: pay attention to the truck. Bait operations often run unmarked or vinyl-wrapped trucks with the bait brand only — no separate company name, no Alabama license number visible on the door, no Baldwin County local address. Honest contractors put their license number and physical address on the truck because both are required by Alabama trade regulations. If the truck doesn't carry a visible AL HVAC license number, you're looking at an out-of-state operation running through Stockton.

Rule three: ask for a written quote before any work is performed. Even at $59. The honest tech will hand you a written tune-up checklist with line items. The bait tech will say "we'll write it up after I look at things." That phrase is the warning. The written estimate before work is the homeowner's primary protection against bait-and-sale, and it's required under Alabama HVAC regulations for any work above the diagnostic line.

For the broader pricing-mechanic context across Baldwin County and how seasonal padding works on the cooling side too, the April Stapleton pre-summer padding post covers the spring version of the same pattern, and the Fort Morgan heat pump backup post explains why genuine heating-side limitations exist on coastal equipment without becoming a sales script.

How an honest October check gets quoted

ACExperts uses a flat $79 service fee year-round — same in October as in February. No seasonal premium, no bait price. A diagnostic visit includes combustion analyzer reading, heat-exchanger visual with borescope photos if anything looks off, gas pressure verification, blower motor and capacitor test, igniter and flame sensor inspection, condensate drain check, thermostat verification, and a written report you keep. The math works because the call isn't funded by a forced upsell — any repair found gets quoted in writing for the homeowner to decide on.

Comfort Plan members get two tune-ups per year included in the membership at no per-visit service-fee charge — one cooling-side, one heating-side — along with 10% off repairs and replacements and no overtime fees. Plan pricing is $20/month (1-year minimum) or $240/year. For Stockton homes that need both heating and cooling check coverage, the Comfort Plan typically pays for itself on the first capacitor or contactor replacement.

The bottom line

The $59 Facebook ad is a sales channel, not a service offering. The $1,400 invoice that follows it is a script, not a diagnosis. Real heat-exchanger cracks exist in Stockton homes — a small number of them, every winter — but they show up with combustion analyzer readings, borescope photos, and physical context. They don't show up at the end of a 12-minute walkthrough on a $59 call.

The four questions in this post will surface a bait script in three minutes. Asking them isn't rude. It's the homeowner's job. The honest contractor expects them. The bait contractor leaves.

Call 251-383-HVAC to book the October check at the flat $79 service fee, or to discuss a written second opinion on a quote you've already received. Free second opinions on quoted repairs for Stockton, Stapleton, and Bay Minette homeowners — bring the original invoice and any photos the previous tech provided.