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Furnace · Charlotte

Heat that holds, done right.

Gas, electric and dual-fuel furnace repair, installation, replacement and pre-winter tune-ups for Charlotte homes. Every major brand serviced. $72 diagnostic on repairs. Free in-home consultation on new systems.

When the furnace won't fire, shuts off mid-cycle, or just can't keep up on a 22-degree January morning, we measure first and tell the truth in writing before any work begins.

The Charlotte furnace standard, in five facts

  • Since 1972The family's work in home comfort.
  • $72Diagnostic fee. It credits toward the repair.
  • In writingFlat-rate price before a wrench turns.
  • Every major brandWe install Daikin and Goodman.
  • 24/7After-hours answering and emergency dispatch.
  • NC HVAC License L.34711

Tell us what's going on.

Four ways we handle your furnace. We route you to the right page, the right phone, the right answer.

  • Furnace Repair

    When the system won't ignite, short-cycles, throws a flame-sensor code, or just isn't keeping up. Flat-rate repair on every major brand. The $72 diagnostic credits toward the repair.

  • Furnace Installation

    For new construction, additions, or converting electric resistance to gas. We size the system to the actual load, Manual J on every quote. Free in-home consultation. Financing through GreenSky.

  • Furnace Replacement

    When the unit is past its useful life or the repair math no longer works. We measure, recommend, and quote in writing. No pressure to upgrade if the existing system has years left.

  • Furnace Tune-up

    Catch the January no-heat call before it happens. The pre-winter tune-up covers combustion analysis, heat exchanger inspection, flame sensor cleaning and ignition timing — the things generalists skip. $14.99 a month through Tru Comfort.

Tell us what you're noticing.

A few patterns we hear most in the winter. Any one of them is reason enough to schedule a diagnostic.

  • The heat won't come on.

    The thermostat is set, but nothing fires up, or it starts and quits right away.

  • The bill jumped this winter.

    Same usage, same thermostat, noticeably higher utility statement.

  • The system short cycles.

    Heat blasts for a minute, shuts off, starts again. The house never quite settles.

  • One room is always colder than the others.

    A bedroom, a finished basement, a bonus room over the garage.

  • Ignition keeps trying, or the pilot won't stay lit.

    Something is preventing a clean start. Often a sensor, igniter, or gas-pressure issue.

  • You smell gas, or the carbon monoxide alarm went off.

    Leave the house and call 911 first. Then call us so we can diagnose properly.

We diagnose properly, write the price before any work begins, and tell the truth about whether it's repair or replacement.

Not a cracked heat exchanger. A worn igniter.

A Charlotte repair call

A homeowner in Mooresville called us last December about a furnace that wouldn't stay on — runs for a few minutes, shuts down, then fails to relight. Another company had already been out and recommended replacement with a "cracked heat exchanger" diagnosis. The quote was just under $7,500.

We came out with a $72 diagnostic. Heat exchanger inspected with a borescope camera, flame characteristics observed, combustion analyzed, gas pressure verified at the manifold. The heat exchanger was intact — no crack, no soot pattern, no flame rollover.

What was actually wrong: the hot-surface igniter was on its last legs, lighting some cycles and failing others. The flame sensor was also coated with combustion residue, which can mimic a "system shutting down for safety" pattern.

The igniter was replaced and the flame sensor cleaned on the same visit, the $72 diagnostic credited toward the work. The furnace ran through the rest of the winter without an issue.

What it means: Cracked heat exchanger is the most common upsell in residential HVAC. If we ever tell you the heat exchanger is cracked, we'll show you the picture. If we can't see a crack, we don't condemn the part.

Book the visit. Same-day or next-day, most days.

$72 to come out on a repair, credited toward the work. Free in-home consultation on new installs. Schedule online in about 90 seconds.

We don't guess. We test.

Every furnace call starts with the gauges, the borescope and the combustion analyzer. We don't condemn parts we haven't inspected. Here is what each instrument tells us, in plain language.

  1. We look inside the heat exchanger.

    A borescope camera goes in and we look at the metal — flame rollover, soot pattern, actual cracking — instead of reading the symptom and condemning the part.

    The most expensive part in the cabinet is the one most often condemned without being seen. A borescope costs a few minutes; a heat exchanger costs a furnace.

    What it means: If we can't see a crack, we don't condemn the part. Repair stays the recommendation as long as the math works.

  2. We measure the combustion.

    Gas pressure verified at the manifold, burner flame characteristics observed, combustion analyzed. A furnace starved for gas and a furnace with a residue-coated flame sensor both present as a furnace that keeps shutting off.

    What it means: The two faults cost very different amounts to fix. Measuring first is how you find out which one you're paying for.

  3. We measure the air.

    Static pressure and airflow across the system. Undersized returns and leaking ducts cause the same cold back bedroom that a failing furnace does, and cost a great deal less to fix.

    What it means: Sometimes the answer isn't a new system. If your system has years left in it, we'll say so.

How most furnace calls go. How ours go.

How a typical furnace service call compares with a Tru72 furnace service call
What is being comparedA typical callA Tru72 call
DiagnosisGuess first. Swap the part that usually fails and see whether it holds.Measure first. Gas pressure at the manifold, combustion, static pressure and electrical draw read before anything is quoted.
The heat exchangerCondemned from the symptom. The repair call becomes a replacement quote.Inspected with a borescope, and you see the picture. If we can't see a crack, we don't condemn the part.
Repair or replaceReplace first. A repair on an older system becomes a replacement quote.Diagnose first. If your system has years left in it, we'll say so.
Sizing a replacementSame size as the old one, right or wrong.Manual J load calculation against your actual home — square footage, ceiling heights, windows, insulation.
The priceA number at the end of the visit, after the work.Flat-rate, in writing, before a wrench turns. The $72 diagnostic credits toward it.

What it means: An oversized furnace short cycles all winter, never settles the house, and wears out in half the time. Measuring is how you avoid buying one.

What the visit actually looks like.

Five steps, every time, whether it's a flame sensor or a new furnace.

  1. Schedule

    Online in about 90 seconds, or by phone. Same-day and next-day appointments are available most days, schedule permitting, and after hours you reach our team.

  2. Measure

    $72 flat on a repair call to come out and find the actual fault: gas pressure at the manifold, combustion analyzed, heat exchanger inspected with the borescope, static pressure read. On an installation or replacement the in-home consultation is free and includes a Manual J load calculation.

  3. Quote

    The price in plain terms, in writing, before any work begins. The $72 credits toward the repair if you go ahead. No pressure to upgrade if the existing system has years left.

  4. Do the work

    The fault gets fixed — not the part next to it. Every major brand of gas, electric and dual-fuel furnace; Daikin and Goodman installed on new systems.

  5. Verify

    We re-measure after the work, so you know the system is performing before we leave.

Two brands. One family.

We service every major brand. When a system does need replacing, these are the two we install — and here is why each one is worth having.

  • Daikin

    Inverter-driven, ultra-quiet, high-SEER2

    Daikin is the global leader in heat pump technology. Inverter-driven variable-speed operation matches output to demand minute by minute, so you get tighter temperature control, lower operating noise and stronger efficiency.

  • Goodman

    Solid efficiency, strong warranty, accessible price

    Goodman is the workhorse of the Daikin family in North America. Systems that hit modern efficiency targets at an approachable price point, with a warranty among the strongest in the industry — which matters when the system needs to last 15 to 20 years.

What it means: A variable-speed system runs long and low instead of blasting and stopping. That is what stops the back bedroom swinging five degrees between cycles.

Tru Comfort — Tru72 maintenance plan
Pre-winter furnace care

The pre-winter tune-up is the call we wish more homeowners made.

Most no-heat January calls are issues we'd have caught in October. Tru Comfort members get a pre-winter furnace tune-up as one of their two annual visits, plus 10% off any repair and 5% off new equipment. $14.99 a month or $180 a year, per system. Free for first responders, teachers, and military through the Mission Ready Plan.

Most homeowners don't know what they qualify for.

If the diagnostic points at replacement rather than repair, this is the money that is already on the table. We check it before you commit to anything.

North Carolina rebate and tax-credit programs for high-efficiency heating equipment
ProgramWhat it coversAmount
Energy Saver North CarolinaQualifying heat pumps, electrical panel upgrades, wiring, insulation and air sealing, heat pump water heatersUp to $8,000, depending on household eligibility
Duke Energy Smart $averHigh-efficiency HVAC, heat pumps, smart thermostats, insulation, duct sealingDepends on the equipment and your account
ENERGY STAR Rebate FinderCertified systems, cross-referenced against your ZIP codeDepends on the manufacturer and utility offers live that month
Energy Efficient Home Improvement CreditQualifying high-efficiency equipment, administered by the IRSConsult your tax professional
NC electric cooperativesAdditional local incentives beyond the statewide programsCheck with your local cooperative

Whether you qualify depends on your household and the equipment. We'll check it on the visit, before you commit to anything.

  • Heating, Charlotte

    The heating category page: pick the system you have, and what the $72 buys.

  • Heat Pumps

    One system, two Carolina seasons — and the dual-fuel option that pairs with a gas furnace.

  • Air Conditioning

    The cooling half of the same system, serviced to the same standard.

Furnace service, plain answers.

The questions Charlotte homeowners ask most often before booking furnace repair, replacement, or seasonal care.

My furnace won't ignite. What's the most common cause?

A few common ones, in rough order of frequency: dirty flame sensor (lights and then shuts down within seconds), aging hot-surface igniter (intermittent ignition), thermostat or wiring issue, gas pressure problem, and rarer faults like a closed limit switch or a control board failure. The $72 diagnostic identifies which one and quotes the repair flat-rate before any work begins.

Will you tell me I need a new furnace if I don't?

No. The "cracked heat exchanger" diagnosis is the most common HVAC industry upsell pattern. If we ever say the heat exchanger is cracked, we'll show you the photo from the borescope, in person or emailed. If we can't see a crack, we don't condemn the part. Repair stays the recommendation as long as the math works.

What brands do you work on?

We service every major brand — Carrier, Trane, Lennox, Rheem, Goodman, Amana, Daikin, York, Bryant, American Standard, Heil, and more. For new furnace installs, we primarily install Daikin and Goodman. Repair work covers the full market regardless of brand.

When should I get a furnace tune-up?

October is ideal. The first cold snap in Charlotte usually arrives mid-November, and finding a problem in October beats finding it at 7 a.m. on the first 22-degree morning when every other HVAC company is also slammed. Tru Comfort members get the pre-winter tune-up as one of their two annual visits.

Do you offer financing on new furnace installs?

Yes. We finance through GreenSky. Most install customers are pre-approved before the install date. Pricing is quoted in writing after a free in-home consultation that includes a Manual J load calculation, sizing the furnace to your home's actual heat load, not a sales target.

Heat that holds, done right.

Same diagnostic discipline the family has carried since 1972. $72 to come out on a repair, credited toward the work. Free in-home consultation on new systems.

Furnace service across the Charlotte metro

Tru72 Heating & Cooling repairs, installs, replaces and tunes gas, electric and dual-fuel furnaces for homes in Mecklenburg County (Charlotte, Huntersville, Matthews, Mint Hill and Pineville), Cabarrus and Rowan counties (Concord, Kannapolis, Harrisburg, China Grove, Salisbury, Mooresville, Cornelius, Davidson, Lake Norman, Denver, Statesville and Locust), Union County (Indian Trail and Monroe) and Gaston County (Belmont and Gastonia), plus Mount Pleasant and Stanfield. $72 diagnostic on repairs, credited toward the work. Heat exchangers inspected with a borescope before they are condemned. Free in-home consultation with a Manual J load calculation on every installation and replacement. After-hours answering and emergency dispatch 24/7. NC HVAC License L.34711.

The Tru72 standard

Clean.Quality.Comfort.

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