Goodman Furnace Repair Nationwide

Goodman Furnace Repair in Marietta: What to Know First

Goodman furnace repair in Marietta typically runs $150 – $700, depending on what’s failed, and most jobs are completed same-day or next-day. We’re an independent Goodman service provider – not a warranty contractor and not affiliated with the manufacturer – which means we diagnose what’s actually wrong before quoting a dollar figure. If you own a Goodman furnace and it’s blowing cold air, short-cycling, or making a sound it shouldn’t, call us at (478) 662-5175 and we’ll send a tech who knows this equipment inside and out.

Call (478) 662-5175

This page is for Marietta homeowners who want plain answers: what breaks on Goodman furnaces, what it costs to fix, and what happens if the repair doesn’t hold. We cover the whole city, from the older homes off Kennesaw Avenue near Marietta Square out to the newer subdivisions east of Sandy Plains Road.

Key Takeaways

• Most Goodman furnace repairs in Marietta fall between $150 and $700, parts and labor included.
• We write the price down before any work starts. No surprises after.
• Every Goodman repair carries our 365-Day Done Right Promise, written on the invoice: if it fails within a year, we come back free.
• We service every Goodman line still heating Marietta homes – the older GMS, GDS, and GMT series, plus the newer GMES, GMEC96, GMVM97, and GSX-compatible furnaces.
• A live person answers our phone 24/7. That’s not a recording claiming it; call at 3 a.m. on a holiday and you’ll get a human.

How Goodman Products Fail – and How We Fix Them

Goodman builds a solid furnace for the money. That’s why so many Marietta homes still run one. But every model line has patterns, and after enough service calls you start seeing the same failures repeat. Here’s what we encounter most often on Goodman equipment in this part of Cobb County.

• Ignitor failure on GMES80 and GMEC96 models. Goodman used silicon nitride ignitors for years, and they’re generally reliable – until they’re not. The telltale sign is a furnace that clicks, the draft inducer spins up, but no flame ever lights. In our experience, ignitors in Marietta fail more often on systems that cycle frequently during damp winter weeks, and it’s a part we replace for $150 – $300, parts and labor.
• Pressure switch faults on GMS and GDS series. These older 80% AFUE units depend on a pressure switch to confirm proper venting. Older venting runs in Marietta homes – especially the ranchers and split-levels built in the 1960s and 70s – can accumulate rust flakes or get partially blocked, and the switch trips. We don’t just swap the switch; we check the venting first, because a new switch won’t help if the vent pipe is the problem.
• Draft inducer motor noise on GMT and GKS series. A grinding or buzzing sound before ignition is usually the inducer motor bearings going. These motors don’t last forever, and we see them wear out on Goodman units that are 12 to 18 years old. Depending on the series, replacement runs $250 – $550, and we use OEM when the furnace is still under warranty and quality aftermarket when it’s not.
• Flame sensor carbon buildup, especially on GMVM97 modulating furnaces. This one’s cheap and common. The flame sensor gets coated with carbon and the furnace lights, runs for a few seconds, then shuts down. Homeowners sometimes describe it as “it fires up and then gives up.” A cleaning fixes it most of the time, and if the sensor is truly done, a replacement is under $100.
• Gas valve issues on GME8 and GMH8 models. When the furnace lights intermittently or not at all, and the ignitor is glowing but gas isn’t flowing, the gas valve is often the culprit. It’s a $200 – $450 repair including the part. We always confirm proper gas pressure at the manifold before condemning a valve – a weak gas supply can mimic a bad valve, and we’d rather fix the actual problem than sell you a part you don’t need.

Our Goodman Furnace Repair Process

Here’s how a Goodman repair works when you call Brandt HVAC Co Marietta. No mystery, no waiting around wondering what’s happening.

1. 1
   You call, a person answers. Twenty-four hours a day. You describe what the furnace is doing, we schedule a visit, and before the tech arrives you get their name and photo by text or email – part of our Threshold Verified standard.
2. 2
   The tech shows up, badge out. The person at your door is the person we told you to expect. They’ll show a photo ID before they step inside.
3. 3
   Diagnosis, explained in plain language. We test the sequence of operation – inducer, pressure switch, ignitor, gas valve, flame sensor, blower – and find the failed component. Then we tell you exactly what’s broken and what it costs, in writing, before any work starts.
4. 4
   You approve the price. We do the repair. The written price is the price. Parts are either OEM Goodman or a quality aftermarket brand we trust – and we’ll tell you which and why.
5. 5
   We test the full cycle. Not just once. We run the furnace through several complete heat cycles, check temperature rise, verify the flame looks right, and confirm the blower shuts down properly.
6. 6
   You get a written guarantee. Every repair we do is covered for 365 days under our Done Right Promise. If it fails in that window, the return visit is free.

What Goodman Furnace Repair Costs in Marietta

Goodman is one of the more repair-friendly brands on the market, and that’s reflected in pricing. Parts are widely available, and we don’t have to order from a specialty distributor in most cases – which keeps turnaround fast and costs reasonable.

What moves the price: the specific Goodman model you have (a GMVM97 modulating furnace uses different parts than a GMS80), whether the furnace is accessible or wedged into a tight attic corner, and whether we’re using OEM or aftermarket parts. You’ll know the exact number before we turn a wrench. Call (478) 662-5175 for a free estimate.

Why Marietta Homeowners Call Brandt HVAC Co Marietta for Goodman Work

Goodman furnaces are common in Marietta, and a lot of companies will happily work on one. We get called because we know the brand’s quirks – and because of how we run the visit. Every tech we send is background-checked and identity-verified under the Threshold Standard, and you’ll know their name and face before they arrive. If someone shows up who you weren’t told to expect, that visit is on us.

We also service Carrier, Trane, and Lennox, so if your Goodman is 20 years old and the repair math points toward replacement, we can talk options across brands without a sales pitch. But on a repair call, we’re focused on one thing: getting your Goodman running right for a fair, written-down price. Devin Marlowe built this company on straight diagnostics – “Tell me what it’s doing, and I’ll tell you what it needs – no guesswork, no upsell.” That’s still how we run every job.

The name Brandt comes from an old word for a firebrand – a torch. Fitting, for the work of keeping a Marietta home warm in January.

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