Seasonal 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.
Fast, Reliable Furnace Repair Across Mableton
Furnace repair in Mableton typically costs $150 – $700 and most calls are completed same day. Brandt HVAC dispatches from our Atlanta office with crews already working the Mableton corridor, so we’re rarely more than 20 minutes from homes off Floyd Road, Mableton Parkway, or Veterans Memorial Highway. Call (984) 538-9003 and a live person answers, 24 hours a day, nights and weekends included.
We know Mableton’s housing stock cold. The brick ranches and split-levels built from the 1960s through the 1980s dominate here, many with original furnaces tucked into closets with barely a foot of clearance or perched on rooftops where summer attic temperatures cook equipment years faster than the manufacturer intended. Our Furnace Repair team has pulled blower assemblies through 28-inch closet doors and replaced heat exchangers in units so tight we had to disassemble them in stages. That experience matters when it’s 28°F outside and your furnace quits at 10 p.m.
Why Brandt HVAC Is Mableton’s Preferred Furnace Repair Company
We’re part of the Threshold Group family, established in 2003, and every Brandt HVAC location is independently owned and operated. That means the crew serving Mableton lives here, knows the difference between a Cobb County permit call and a City of Mableton permit call, and understands why a furnace on Floyd Road fails differently than one in Vinings.
Our technicians are background-checked, uniformed, and sent to you by name and photo before every visit. You’ll see their photo ID badge at the door. If anyone arrives who you weren’t told to expect, that visit is on us and we make it right. That’s the Threshold Verified standard, and it’s non-negotiable.
Every repair starts with a written price. No work begins until you see the cost and agree to it. Every repair also carries a written guarantee under our 365-Day Done Right Promise: if the fix fails, we return at no charge. No argument, no additional fee.
Our phones are staffed by a live person 24/7. No voicemail, no callback queue, no automated phone trees. When your furnace dies on a Saturday night in Mableton, you talk to a human who can dispatch a technician.
Gas Furnace Repair in Mableton
Gas Furnace Repair in Mableton covers everything from failed ignitors and dirty flame sensors to cracked heat exchangers and faulty gas valves. Most calls run $150 – $700, with simpler fixes like ignitor replacements on the lower end and heat exchanger work toward the higher end. Given Mableton’s density of 1960s – 1980s brick ranches, we see a lot of original furnaces pushed well past their design life, especially in closet installations where restricted airflow accelerates component fatigue.
Heat Exchanger Safety Checks
A cracked heat exchanger can leak carbon monoxide into your home. We test every suspected unit with combustion analysis, not just a visual glance. In Mableton’s older split-levels off Veterans Memorial Highway, we’ve found heat exchangers cracked from years of short-cycling caused by duct leaks, not age alone. If we find a crack, we show you the test results and explain your options before any replacement work starts.
Gas Valve and Ignitor Replacement
Gas valves stick. Ignitors wear out. These are straightforward repairs, usually completed in under two hours. We stock common Goodman, Rheem, and York parts for Mableton jobs, so you’re not waiting on a warehouse shipment while the house chills.
Furnace Tune Up in Mableton
Furnace Tune Up in Mableton costs $80 – $200 and should happen every fall before the heating season starts. We clean burners, test safety controls, check heat exchangers for cracks, measure gas pressure, and inspect the full flue path. In Mableton specifically, we also test static pressure across your duct system because we’ve learned that patched flex-duct runs in unconditioned attics throw off airflow and cause furnaces to short-cycle, which looks like a furnace problem but isn’t.
What We Find in Mableton Attics
Your ductwork lives in a 140°F attic for five months of the year. Tape dries out. Flex duct pulls loose from metal collars. We photograph what we find and show you, so you understand why your furnace runs constantly but rooms stay cold. Sometimes the fix is a $200 duct seal, not a $4,000 furnace.
Written Report, No Sales Pressure
Our technicians are not paid on what they sell. They document everything in a written report: what we measured, what we found, what’s fine, what needs attention, and what can wait. You decide what to do and when.
Trusted Brands We Service in Mableton
We repair and maintain all major residential furnace brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Mableton customers, we stock the most common ignitors, blower motors, control boards, and gas valves for Goodman, Rheem, and York systems locally, which means faster turnaround on the brands we see most often in this market. If your furnace is a 1990s Carrier in a closet off Mableton Parkway or a 2010s Daikin on a rooftop near the Chattahoochee, we’ve worked on it before and we have the parts relationships to get you running again without a two-week wait.
Common Furnace Repair Problems We See in Mableton Homes
- Heat exchanger cracks in closet-installed furnaces. Tight clearances trap heat, and Mableton’s summer attic temperatures radiate through closet walls. We test with combustion analyzers and replace only when confirmed, never on speculation.
- Short-cycling from duct leaks in flex-patched systems. Original galvanized duct patched with flex duct in unconditioned attics leaks badly. The furnace satisfies the thermostat quickly but doesn’t heat rooms evenly. We measure static pressure to separate duct problems from control board faults.
- Failed ignitors in high-run-time units. Mableton’s humidity means systems work harder in shoulder seasons. Older furnaces that cycle on and off dozens of times daily wear ignitors faster than in drier climates.
- Noise complaints on exterior vent terminations. Dense lots along Mableton Parkway put furnace vents close to property lines. Older induced-draft furnaces run louder than modern units, and we’ve replaced several after neighbor complaints escalated.
Pricing for Furnace Repair in Mableton, GA
| Service | Typical Range in Mableton |
|---|---|
| Furnace Repair | $150 – $700 |
| Furnace Tune Up | $80 – $200 |
Most furnace ignitor replacements in Mableton run $150 – $300, parts and labor included. Blower motor repairs range $300 – $550. Heat exchanger replacement or full furnace replacement pushes toward the upper end of our repair range. What drives cost: accessibility (closet pulls take longer than basement swaps), parts availability, and whether we find secondary damage from delayed repair.
We give you a written price before any work starts. Every job, no exceptions. Estimates are free. Call (984) 538-9003 to schedule.
We Also Serve Cities Near Mableton
Our crews work throughout the west Atlanta corridor. If you’re in Mableton or nearby Austell, Smyrna, Powder Springs, or Atlanta proper, we cover your area with the same live-answer dispatch and Threshold Verified technicians. Scheduling is coordinated from our Atlanta office, with local crews deployed to your neighborhood.
Serving Mableton, GA - Our Local Coverage Area
We’re based in the Mableton area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Furnace Repair in Mableton
Mableton incorporated as its own city in late 2023, so furnace replacements now require a City of Mableton permit, not a Cobb County permit. Contractors who know to call the city’s permit office directly typically get same-week inspections; those who default to Cobb County’s main line face multi-week delays. We handle permit pulls and scheduling as part of every replacement job. Call (984) 538-9003 and we’ll confirm current requirements for your specific project.
It’s usually the ducts. In Mableton’s 1960s – 1980s homes, original galvanized metal duct patched with flex duct in unconditioned attics leaks badly, throwing off static pressure and causing the furnace to satisfy the thermostat quickly without heating rooms evenly. We measure static pressure first to separate duct problems from control board or limit switch faults. Call (984) 538-9003 for a diagnostic – estimates are free.
Most furnace repairs in Mableton run $150 – $700, with ignitor replacements around $150 – $300 and blower motor work $300 – $550. Heat exchanger replacement or full system replacement falls at the higher end. We provide a written, itemized price before any work begins. Call (984) 538-9003 for a free estimate on your specific unit.
Mableton’s humid subtropical climate, especially in bottomland areas near the Chattahoochee River, means summer dew points routinely hit the low-to-mid 70s°F. Slightly undersized or duct-leaky systems fail to dehumidify adequately even when they hold temperature, which drives comfort callbacks and can contribute to mold complaints. Your furnace doesn’t dehumidify directly, but leaky ducts in humid attics pull moisture into the system year-round, corroding heat exchangers and control boards faster than in drier markets.
Yes. Many Mableton homeowners in older brick ranches and split-levels add mini-split heat pumps where extending ductwork isn’t practical, especially in additions or converted garages. We install and service ductless systems from Daikin and other major brands, sized to Mableton’s specific cooling and heating loads. Call (984) 538-9003 to discuss whether a mini-split or ducted heat pump fits your home.
Written by Devin Marlowe, Owner at Brandt HVAC, serving Mableton and the greater Atlanta area.







Before
After
Before
After
Before
After