AC repair
Furnace & heating
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateStyles & brands we work with
See the difference
Before
After
Before
AfterFurnace Repair in Marietta, GA
Furnace repair in Marietta typically runs $150 to $550 for most common fixes, with igniter replacements landing between $150 and $300 and blower motor work climbing to $400 or more. We’re Brandt HVAC Co Marietta, and we’ve been fixing furnaces here since 2003. When your heat stops working in a Cobb County winter, you need a repair crew that shows up when they say they will, tells you exactly who’s coming through the door, and puts the price in writing before any work starts. That’s how we operate. If your furnace is acting up, call (478) 662-5175 and a live person answers, any hour, any day.
This page covers what furnace repair involves, what it costs in Marietta, and how our process works from first call to final walkthrough. If you’re still deciding between repairing and replacing, our Heating & Furnace guide walks through that decision in more detail.
Key Takeaways
- Most Marietta furnace repairs cost between $150 and $550, parts and labor included.
- We put a written price in your hand before any work begins. No exceptions.
- Every repair includes a written 365-day guarantee under the Done Right Promise.
- Your technician’s name and photo are sent to you before arrival, and they show a photo ID badge at the door.
- Calls are answered by a live person 24/7. No voicemail, no phone trees.
When You Need Furnace Repair
A furnace rarely quits without warning. Usually, it tells you something’s wrong days or weeks before it stops completely. The sooner you catch it, the cheaper the fix. Here are the symptoms we hear most from homeowners across Marietta, from Powers Ferry Road to the neighborhoods around the Square:
- The furnace runs but blows cold air. This often points to a failed igniter, a dirty flame sensor, or a gas valve that isn’t opening. It can also mean the limit switch tripped, which shuts the burners down as a safety measure.
- Short cycling: it kicks on, runs two minutes, shuts off. In Marietta’s older ranch homes, we see this a lot with dirty air filters or an overheating heat exchanger. If it’s the heat exchanger, that’s a “stop using it” situation until we inspect it.
- No heat at all after a cold snap. The first hard freeze of the year always triggers a wave of igniter failures. The igniter is a small ceramic part that glows to light the gas, and it’s the single most common repair we make from November through February.
- Strange smells when the heat kicks on. A dusty smell on the first startup of the season is normal. A sulfur or rotten-egg smell is gas, and that means shut the unit down at the thermostat and call us right away. We treat that as an emergency call, and our phones are staffed around the clock.
- Rumbling, banging, or squealing sounds. These usually come from a failing blower motor, a cracked belt, or burners that are overdue for cleaning. Ignoring a squeal today can turn into a full motor replacement next week.
- Your utility bills jumped without explanation. A furnace that’s working harder than it should is often a furnace with a dirty burner, a failing component, or airflow problems. Repairing it now usually costs less than another winter of inflated gas bills.
Our Furnace Repair Process
We built our repair process around a simple idea: you should never feel uncertain about who’s at your door, what they’re going to do, and what it will cost. Here’s how it works:
- You call (478) 662-5175. A live person answers. Day, night, weekend, holiday. You describe the problem, and we schedule a visit. If it’s an emergency, we prioritize accordingly.
- You get your technician’s name and photo. Before our tech arrives, you’ll know exactly who to expect. That’s the Threshold Verified standard we operate under, which means every technician has passed a background check and identity verification. If someone shows up who you weren’t told to expect, that visit is on us, and we make it right.
- Diagnosis and a written price. The tech examines your furnace, finds the actual problem, and explains it in plain language. Then you get a written quote, parts and labor included, before any work starts. You approve it, or you don’t. There’s no pressure either way. But you’ll never be surprised by a bill.
- The repair. We carry common parts on the truck, igniters, flame sensors, capacitors, pressure switches, so most repairs are finished in a single visit. The tech works clean, wears shoe covers, and treats your home like it matters. Because it does.
- A written guarantee, not a handshake. Every repair includes a written guarantee, and under our 365-Day Done Right Promise, if the repair fails within the guarantee period, we return and make it right at no charge. No argument, no fine print, no second bill.
Furnace Repair Pricing in Marietta
Here’s what we see across Marietta and Cobb County, from East Cobb ranchers to homes near Kennesaw Mountain. These are real ranges for the repairs we make most often, parts and labor included:
Common Furnace Repair Costs
| Repair | Typical Cost Range |
|---|---|
| Igniter replacement | $150 – $300 |
| Flame sensor cleaning or replacement | $100 – $225 |
| Capacitor replacement (blower motor) | $150 – $275 |
| Pressure switch replacement | $175 – $325 |
| Blower motor replacement | $400 – $750 |
| Gas valve replacement | $300 – $550 |
| Thermostat replacement or wiring repair | $125 – $300 |
What actually moves the price? First, the part itself. A Goodman igniter is less expensive than a Trane-specific one, though both are reliable when installed correctly. Second, accessibility. Furnaces shoved into tight Marietta attic corners or crawlspaces take longer to work on, which adds honest labor cost. Third, age. A Lennox or Rheem from the mid-1990s may have parts that are harder to source, and that cost reflects supply, not markup games.
We service all major brands, including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. If you know your brand, tell us when you call. It helps us stock the truck right the first time.
Every job starts with a free estimate in writing. You’ll never pay for a diagnostic and then get hit with a surprise quote. The number on the paper is the number on the invoice.
Why Marietta Homeowners Choose Brandt HVAC
Our name comes from an old word for a firebrand, a burning piece of wood used to carry warmth from one place to another. That’s the work we do, keeping heat moving into your home when the temperature outside drops. But a name only gets you so far. Here’s what actually matters when you’re standing at your front door deciding who to let inside:
- You’ll know who’s coming. We send a name and photo before every visit. Your technician wears a uniform and shows a photo ID badge at the door. This is the Threshold Verified standard, and it exists because opening your door to a stranger is a decision you shouldn’t have to make on faith. If you’re home alone, managing kids after school, or helping an older parent, that certainty matters.
- No surprise pricing, ever. The written quote comes before the work. Not a verbal estimate, not a “we’ll see what it needs.” A written number, on paper, that you approve first.
- The 365-Day Done Right Promise. If a repair we made fails within 365 days, we come back at no charge. That’s the guarantee in writing, on every single repair.
- A live human answers the phone. Not a recording. Not a call center script. A person who can schedule and dispatch, 24 hours a day, 7 days a week. When your furnace dies at 10 p.m. during a January cold snap, you’ll be glad for it.
Furnace Brands We Repair in Marietta
We work on all major residential systems, and our techs carry parts for the most common failures across the big names. A Trane furnace in a Smyrna-area townhome needs different parts than a Rheem in a Powder Springs rancher, and we stock accordingly. Common brands we service include Goodman, Lennox, Rheem, and Trane, plus Carrier, York, Daikin, Bryant, and American Standard. If your system is older or a less common brand, call us. Chances are strong we can source what you need.
FAQs – Furnace Repair
How much does furnace repair cost in Marietta?
Most furnace repairs in Marietta cost between $150 and $550, with the most common fix, an igniter replacement, running $150 to $300 parts and labor included. Larger repairs like blower motor replacement can reach $750. Every job gets a written quote before work starts. Call (478) 662-5175 for a free estimate on your specific furnace.
Is it cheaper to repair or replace a furnace in Marietta?
If the repair costs less than 30% of a new furnace and your system is under 15 years old, repair is usually the smarter short-term move. A $200 igniter on a 12-year-old Lennox almost always beats a $5,000 replacement. But if you’re looking at a cracked heat exchanger or repeated failures on a 20-year-old unit, replacement starts making more sense. We’ll walk you through the math honestly, and the quote you get is for the repair, not a sales pitch disguised as a service call.
Can you fix my furnace the same day?
In most cases, yes. We stock common parts like igniters, flame sensors, capacitors, and pressure switches on our trucks, so many repairs are completed in one visit. During peak cold snaps, demand spikes, but our dispatch runs 24/7 and we schedule emergency calls by urgency, not by who called first. Call (478) 662-5175 and we’ll give you the soonest available window.
Is a furnace repair dangerous to do myself?
A gas furnace involves flammable gas, electrical components, and a heat exchanger that can crack and leak carbon monoxide. That’s not a weekend project. Even a simple-looking igniter replacement involves high-voltage connections and gas line proximity. We recommend a trained professional for any gas furnace work. Our technicians are background-checked, identity-verified, and trained on the specific systems they service.
What does the Brandt HVAC guarantee cover?
Every repair comes with a written guarantee. Under the 365-Day Done Right Promise, if the repair fails within 365 days, we return and make it right at no charge, no argument, no fine print. The guarantee is written, specific, and included with every job.
Schedule Furnace Repair in Marietta
If your furnace is blowing cold air, short cycling, or making noises it shouldn’t, don’t wait for it to fail completely. Call (478) 662-5175 and a live person will answer, day or night. We’ll get you scheduled, send the name and photo of your technician before arrival, and give you a written price before any work starts. That’s the way furnace repair should work in Marietta, and it’s the only way we do it.
Written by Devin Marlowe, Owner at Brandt HVAC Co Marietta, serving Marietta.