AC repair
Furnace & heating
Heat pumps
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 estimateFast, Reliable Furnace Repair Across Decatur
Furnace repair in Decatur typically runs $150 – $700, and most jobs are completed the same day we diagnose them. If your heat is out on a cold night, we answer the phone live at (762) 465-4570 and can have a technician in your neighborhood fast. Our service area covers the full city, from Oakhurst and Winnona Park down to the commercial district near Decatur Square. We know these streets, these houses, and the heating quirks that come with them.
Decatur isn’t a suburb full of cookie-cutter construction. It’s a city where a 1926 Craftsman bungalow sits two doors down from a 1960s ranch, and both need different things from a furnace. That’s exactly the kind of work we do well, and we’ve been doing it since 2003 as part of the Threshold Group family. When you call, you get a real person. When we send someone, you know who’s coming before they ring the bell. Our Furnace Repair team works on every major brand and every vintage of equipment.
Why Brandt HVAC Co Atlanta Is Decatur’s Preferred Furnace Repair Company
Decatur homeowners call us because we tell them who’s showing up. Every technician is background-checked, uniformed, and identity-verified under the Threshold Verified standard. Before the visit, we send you the tech’s name and photo. At your door, they show a photo ID badge. If someone arrives who you weren’t told to expect, that visit is on us, and we make it right. For people home alone, parents with young kids, or older homeowners, that changes the whole experience.
Devin Marlowe leads our crew, and he’s particular about how we work in older Decatur homes. A furnace repair in Oakhurst often means navigating a 1930s basement with low clearance and original ductwork that was never meant for modern airflow. We train for that. We don’t send someone who only knows how to bolt in a new unit and leave. We send someone who understands why a heat exchanger cracks, why a limit switch keeps tripping, and what to do about it without tearing out plaster.
Every job starts with a written price. No work begins until you see the number and agree to it. Every repair includes a written guarantee. If it fails inside the guarantee period, we return at no charge under our 365-Day Done Right Promise. That’s not marketing language. It’s the way Furnace Repair in Decatur should work.
Styles & brands we work with
Emergency Furnace Repair in Decatur
Emergency Furnace Repair in Decatur means getting heat back on the same night the system fails, and we staff phones 24 hours a day, 7 days a week for exactly that reason. A dead furnace in a Decatur cold snap isn’t just uncomfortable. In homes with older cast-iron radiators or single-zone ductwork, it can become dangerous fast, especially for older residents or houses with young kids. We treat no-heat calls as emergencies, plain and simple. Call (762) 465-4570 and a live person answers, not a voicemail tree.
No-Heat Diagnosis and Rapid Response
When a Decatur furnace quits, the first job is finding out why. We test the ignitor, the gas valve, the limit switch, and the blower motor in that order, because that’s the order failures usually happen in these homes. Most emergency repairs fall between $150 and $700, depending on the part. We bring common parts on the truck so the fix is often one visit.
After-Hours and Weekend Calls
Decatur gets cold snaps on Friday nights and holiday weekends just like anywhere else. Our phones are answered by a person at 2 a.m., 6 a.m., and Sunday afternoon. There’s no overtime surcharge for emergency calls, and no charge just to diagnose the problem. We quote the repair in writing before any tool comes out of the bag.
Furnace Maintenance in Decatur
Furnace Maintenance in Decatur is the best defense against the two things that hit these older systems hardest: dust-clogged blowers and heat exchangers stressed by short cycling. A typical tune-up here runs $80 – $200 and takes about an hour. We clean the burners, test the ignitor, inspect the heat exchanger for cracks, check the blower motor amp draw, and verify the thermostat calibration against the real temperature in the room.
Pre-Season Safety and Efficiency Inspection
Before the first real freeze, we go through the full sequence of operation and check the flue for blockages. In older Decatur homes, we pay special attention to carbon monoxide risk, because original chimneys and flues were not built for the high-efficiency units some homeowners have retrofitted in. You get a written report of everything we found, with photos where it matters.
Heat Exchanger and Burner Care
Heat exchangers in Decatur furnaces age faster when airflow is poor, and poor airflow is common in homes with undersized original ductwork. During maintenance, we measure static pressure and check for the temperature rise across the heat exchanger. Catching a small crack early is a $200 repair. Missing it until it fails is a $2,000 problem. That’s the math of a tune-up.
Trusted Brands We Service in Decatur
We work on Carrier, Trane, Bryant, and American Standard furnaces in Decatur homes, along with Lennox, Goodman, Rheem, York, Daikin, and plenty of older units no longer made. Most replacement parts for these brands are available locally or through our suppliers within a day, so you aren’t waiting a week for a blower motor or ignitor. If your 1990s Carrier in an Oakhurst bungalow needs a specific control board, we find it. If your newer Bryant in a Winnona Park infill house needs a warranty part, we handle the paperwork. No brand is too old, too new, or too obscure.
Common Furnace Repair Problems We See in Decatur Homes
- Overheating blower motors from undersized ductwork. Many 1920s – 1940s Decatur homes have ductwork that was retrofitted for air conditioning decades ago, and it simply doesn’t move enough air for a modern furnace. The blower works harder, overheats, and trips the limit switch during cold weather. We correct airflow before we replace the motor, or you’ll be changing motors every few years.
- Hot and cold spots from single-zone systems on unbalanced floor plans. A bungalow with a central hall and bedrooms at opposite ends will never heat evenly with one thermostat. Homeowners often blame the thermostat and replace it, but the real problem is the zoning. We can add zoning controls, adjust damper positions, or change blower speeds to even things out.
- Breaker trips caused by older electrical panels. Many Decatur homes still run on 100-amp panels that were never sized for a high-efficiency furnace plus air conditioning plus modern appliances. A furnace that keeps tripping a breaker may be fine mechanically. The panel may be the problem. We check amp draw during diagnosis and tell you honestly if an electrician is the right call before we sell you a part you don’t need.
- Cracked heat exchangers in aging furnaces stressed by short cycling. In Decatur’s mild winters, furnaces rarely run long enough to reach steady state. That on-off cycling is hard on a heat exchanger, especially in a 20-year-old unit. A cracked exchanger is a safety issue, and we’ll show you the crack on camera. Sometimes the right fix is repair. Sometimes it’s replacement. Either way, you decide after seeing the evidence and a written price.
See the difference
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AfterPricing for Furnace Repair in Decatur, GA
Here’s what you can expect to pay for furnace work in Decatur. These are real ranges, parts and labor included, for this market.
| Service | Price Range |
|---|---|
| Furnace Repair | $150 – $700 |
| Furnace Maintenance | $80 – $200 |
Common repairs sit at the lower end: an ignitor replacement typically runs $150 – $300. A gas valve replacement runs $250 – $500. A blower motor replacement runs $350 – $650. A full heat exchanger replacement on an older unit can approach $700 and sometimes makes replacement the smarter call. The point is, you’ll know the number in writing before we turn a wrench. Estimates are free. Call (762) 465-4570 and we’ll give you an exact quote for your furnace’s make and model.
We Also Serve Cities Near Decatur
While this page focuses on Decatur, our crews also cover the surrounding communities of Conley, Atlanta, Forest Park, and Stockbridge. If you live near the DeKalb-Fulton line or just outside the Decatur city limits, we can still help. The same written pricing, the same vetted technicians, and the same live 24/7 phone line apply everywhere we work.
Serving Decatur, GA - Our Local Coverage Area
We’re based in the Decatur 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 Decatur
That’s almost always an airflow or zoning problem, not a furnace problem. In Decatur’s 1920s – 1940s bungalows, the original ductwork was often undersized or retrofitted through narrow chases, so some rooms get plenty of warm air and others get almost none. The furnace keeps running because the thermostat, usually in the warmest part of the house, never satisfies. The fix can be as simple as damper adjustments or as involved as adding a second zone. We measure airflow and static pressure before recommending anything. Call (762) 465-4570 and we’ll figure out what your house actually needs.
Yes, and we’re careful about it. In homes with original steam radiators, most furnace-side repairs don’t require touching the radiators or walls at all. The boiler or furnace, the controls, the pressure switch, the gas valve, the circulator pump on hot-water systems, those all live in the basement or a utility closet. When we need to run new thermostat wiring or replace a valve behind a radiator, we work through existing chases and access points, not through your plaster. We’ve done this in Oakhurst and Winnona Park homes where the plaster crown molding is original and irreplaceable. You’ll see the plan before we cut anything.
Sometimes, but often it’s the electrical panel. A 1940s Decatur home may still have a 100-amp panel, and a high-efficiency furnace with an ECM blower can draw enough on startup to trip an aging breaker, especially if the air conditioning is also running. We check the furnace’s amp draw, the blower motor, and the condition of the breaker during diagnosis. If the furnace is drawing within spec, the panel and circuit are the next suspects. We’ll tell you straight if you need an electrician rather than a furnace repair. A written diagnosis with amp readings costs nothing to discuss.
Call (762) 465-4570 immediately. We answer live 24/7, and we prioritize no-heat calls during freezing weather because a cold house in Decatur can be dangerous, especially for older homeowners or homes with young children. Before calling, check your thermostat batteries and confirm the breaker hasn’t tripped. If those are fine, leave it to us. We’ll dispatch a technician to your Decatur address, diagnose the problem, and give you a written price before any repair begins. Most freeze-related failures are ignitors, flame sensors, or limit switches, and we carry those parts on the truck.
Often yes, but not for the reason most people think. Decatur’s winters are mild, so the fuel savings from a 96% efficient unit versus an 80% unit are modest, maybe $80 – $150 a year for a typical bungalow. The bigger benefit is comfort and longevity. High-efficiency furnaces with variable-speed blowers run longer at lower output, which evens out the hot and cold spots that plague single-zone older homes. But in an older Decatur house, a like-for-like swap often disappoints because the ductwork and panel were never designed for the new unit. We’ll tell you what would actually improve your comfort and what would just cost money without fixing the real problem. A free estimate includes that honest conversation, call (762) 465-4570.
Why a Like-for-Like Swap Often Disappoints in an Older Decatur Home
Here’s the thing most furnace companies in Decatur won’t tell you. In the Oakhurst and Winnona Park neighborhoods, many early-20th-century homes still rely on original steam radiators and boilers, with later-added central air retrofitted into tight plaster-walled spaces. That means a standard part swap, or replacing a furnace with the same size unit, frequently fails to solve the comfort problem the homeowner was trying to fix. The old furnace may have been too big, too small, or fighting against ductwork that was never properly designed for forced air. Put a new unit on that same bad foundation and you’ll get the same uneven heat, just with a new sticker.
Our crew recently repaired a 1940s Craftsman bungalow in Oakhurst where the original Lennox furnace’s heat exchanger had cracked. Because the home’s ductwork was retrofitted through narrow chases, we had to replace the heat exchanger with a model sized for the original system’s static pressure, then recalibrate the thermostat to account for the radiators’ residual heat, leaving the plaster crown molding untouched. That job took planning and patience. A generic swap would have left that house with a brand new furnace that still couldn’t move air properly through century-old ducts.
So when you’re deciding between repair and replacement in Decatur, ask the company this: have you measured the ductwork’s static pressure? Have you checked the panel’s capacity? Have you considered the radiators’ residual heat and how it affects thermostat placement? We ask those questions on every older home, because a furnace that actually works is a furnace that’s matched to the house, not just bolted to it. That’s what the $150 – $700 repair range gets you when you call Brandt HVAC Co Atlanta: a technician who understands the house before fixing the furnace.
Written by Devin Marlowe, Owner at Brandt HVAC Co Atlanta, serving Decatur since 2003.