Furnace & heating
AC repair
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 estimateFast, Reliable Furnace Repair Across Doraville
Furnace repair in Doraville typically costs between $150 and $700, and most jobs are completed the same day. That range covers everything from a failed ignitor to a blower motor replacement. If your heat has quit on a cold night, call (229) 537-2086 and a live person answers, 24/7. We dispatch technicians to Doraville from our Atlanta metro office, so someone can be at your door fast, usually inside a two-hour window.

We know Doraville homes. The 1960s and 70s ranches and split-levels that fill this city were built for a different era, and their furnaces often fail for reasons that have nothing to do with the furnace itself. That’s the work we specialize in. Our Furnace Repair team fixes the machine, but we also find and solve the airflow and electrical problems behind it, so the heat actually reaches every room.
Why Dalton Heating & Air Alpharetta Is Doraville’s Preferred Furnace Repair Company
Doraville homeowners call us because we show up when we say we will, put the price in writing before any work starts, and stand behind the repair for a full year. That last part is written, not implied. The Garrison Standard, which has governed every Dalton job since 2003, means if a repair fails within 365 days, we return at no charge. No arguing, no re-diagnosis fee.
Every technician who walks into a Doraville home is background-checked, uniformed, and factory-trained to service nine major brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. You’ll know who is coming before they arrive. We also answer our phones with a real person at 3 a.m., not a voicemail queue. When your furnace quits on the coldest night of the year, that matters.
Our crews regularly work in Doraville neighborhoods like Northwoods, Huntley Hills, and the streets off Buford Highway and Shallowford Road. We know the housing stock, the panel boxes, and the duct runs. Marco Benitez runs the Doraville service area, and he holds his team to the Garrison Code: arrive inside the stated window, price first, work by the book, clean up, and guarantee it for a year.
Styles & brands we work with







Heating Repair in Doraville
Heating repair in Doraville covers everything from a furnace that won’t start to a heat pump that’s blowing cold air on a 40-degree January morning. The job usually starts with a diagnostic visit, during which the technician tests the sequence of operation, measures gas pressure, checks the heat exchanger, and inspects the blower and controls. In Doraville homes, that diagnostic often uncovers an airflow problem upstream of the furnace, like a clogged return or collapsed crawlspace duct, rather than a failed component inside the cabinet. Most heating repair jobs in Doraville run $150 to $700 depending on the part and the fault.
Marco Benitez’s crews approach every heating repair in Doraville the same way: find the root cause, not just the symptom. A furnace that trips its limit switch every 20 minutes is often starved for return air. Fixing the switch alone doesn’t fix the house. We repair the furnace and the airflow, then test the full system to confirm it runs without overheating.
Limit switch and overheating issues
Limit switches trip when the furnace gets too hot, and in Doraville’s older homes, the cause is frequently a low-wall return grille that’s too small for the blower motor. We test blower static pressure, not just the switch. If the numbers are off, we address the duct or grille before calling the repair done.
Furnace ignition failure
Ignitors, flame sensors, and gas valves fail in Doraville furnaces just like anywhere else, but short cycling makes them fail faster. If your furnace fires, runs three minutes, then shuts down, the ignitor is working overtime. We replace the failed part and confirm the run cycle is long enough to justify the repair, so the new one doesn’t die early.
Boiler Repair in Doraville
Boiler repair in Doraville is less common than furnace work, but a handful of older homes and mid-century apartment buildings off Buford Highway still run hydronic systems, and they fail in predictable ways. A boiler that loses pressure, kettles loudly, or stops circulating heat through baseboards or radiators usually needs either a fill valve, an expansion tank, or a circulator pump. Most boiler repairs in Doraville run $150 to $700 for parts and labor, with the higher end covering pump or zone-valve replacement. We carry common parts for Weil-McLain, Burnham, and Peerless boilers, and we can have uncommon parts by the next day.
No heat in one zone
When one part of a Doraville home stays cold while another is warm, the problem is usually a zone valve or a bad circulator pump, not the boiler itself. We test the thermostat wiring first, then the valve motor, then the pump. It’s a systematic fix that saves you from replacing a boiler that still has years left.

Low pressure and kettling
Boilers in Doraville homes with original piping often lose pressure through old relief valves or expansion tanks that have failed internally. Kettling, the banging sound that comes from scale buildup in the heat exchanger, is a warning sign. We flush the system when possible and replace the failed component that caused the pressure loss, so the boiler runs quiet and heats evenly again.
Trusted Brands We Service in Doraville
Our technicians are factory-trained on Lennox, Goodman, Rheem, and York furnaces, and we service all nine major residential brands including Carrier, Trane, Daikin, Bryant, and American Standard. For Doraville customers, that means we don’t play brand favorites and we don’t push a replacement when a repair is the right call. We stock common parts for these systems in our Atlanta warehouse, so most Doraville repairs go from diagnosis to fixed in a single visit. When a part is old or discontinued, we source a factory-compatible replacement instead of a universal part that fits poorly and fails early.
See the difference
Before
After
Before
After
Before
AfterCommon Furnace Repair Problems We See in Doraville Homes
- Duct leakage in crawlspaces. Original 1960s and 70s duct runs through unsealed pier-and-beam spaces lose up to 30% of heated air before it reaches the register. We seal and repair ducts during many furnace jobs, because a new furnace on leaky ducts still won’t heat the far rooms.
- Undersized low-wall return grilles. The hallmarks of a mid-century Doraville ranch are knee-high returns that choke the blower. This causes coil freeze-ups in summer and limit-switch trips in winter, and it’s often misdiagnosed as a furnace failure when airflow is the actual fault.
- Split-level temperature imbalance. Single-zone systems in Doraville split-levels overheat the upper floor while the lower stays cold. We see homeowners ready to replace a furnace that’s actually fine; zoning, damper work, or a return relocation solves the imbalance for far less money.
- Aging electrical panels. Furnace blowers in many Doraville homes share circuits with other loads, or lack a dedicated 15-amp circuit entirely. Nuisance breaker trips that get blamed on the furnace are often an electrical panel issue we diagnose during the repair visit.
Pricing for Furnace Repair in Doraville, GA
Here’s what furnace repair actually costs in Doraville, in writing, before we touch anything:
| Service | Typical Cost Range |
|---|---|
| Furnace Repair | $150 – $700 |
| Heating Repair | $150 – $700 |
| Boiler Repair | $150 – $700 |
What moves the number inside that range is the part and the labor to reach it. An ignitor replacement is quick and typically lands near the lower end. A blower motor swap is more involved, especially in a crawlspace furnace off Shallowford Road where access is tight. You’ll get an exact written quote before any work begins, and the repair is guaranteed in writing for a full year. If it fails in that time, we come back at no charge. Call (229) 537-2086 for a free estimate.
We Also Serve Cities Near Doraville
If you’re in a neighboring community, we’re there too. Our crews handle furnace repair across Doraville and the surrounding metro, including Alpharetta, Milton, Duluth, and Sugar Hill. Same written pricing, same one-year guarantee, same live-answer phone line.
Serving Doraville, GA - Our Local Coverage Area
We’re based in the Doraville 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 Doraville
Short cycling in a Doraville ranch is almost always an airflow problem, usually the original low-wall return being too small for the blower motor. A new filter doesn’t fix an undersized return grille or collapsed crawlspace duct. We test static pressure to find the real restriction, then relocate or enlarge the return if needed, which stops the cycling and extends the life of the heat exchanger.
You can, but you may regret it. A like-for-like swap on original ductwork in a Doraville home often leaves you with the same temperature imbalances and short cycling you had before. We inspect the ducts during every replacement estimate and tell you honestly if sealing, return relocation, or zoning is needed first. The furnace won’t perform to its rating if the ducts can’t deliver the air.
A failed blower capacitor usually shows up as a furnace that hums but won’t blow air, or a blower that starts slowly and runs hot. In a Doraville home, the symptom is often confused with a bad motor. We test the capacitor in about five minutes with a multimeter, replace it if it’s out of spec, and confirm the motor draws the right amperage afterward. It’s a $150-to-$200 repair in most cases, not a motor replacement.
An 8-degree split means your single-zone system is fighting the split-level floor plan. Heated air rises and cold air sinks, and without a damper or zoning solution, the upper level will always lose. In Doraville split-levels we often relocate a return to the upper hallway and add manual dampers to push more heat upstairs, which balances the rooms without replacing the furnace.
For many Doraville homes, yes. Mild winters mean a heat pump can handle heating for most of the season, and it gives you efficient cooling in the long summers. But the same rule applies: a heat pump on leaky original ductwork won’t perform. We’ll calculate the load and inspect the ducts before recommending anything, and we’ll show you the math on what a new system costs versus repairing your current furnace.
If your furnace is blowing cold air, short cycling, or making noise it shouldn’t, call (229) 537-2086. A live person answers any hour. We’ll send a background-checked technician to your Doraville home, put the price in writing, and guarantee the repair for a full year. That’s the standard, not the exception.
Written by Marco Benitez, Owner at Dalton Heating & Air Alpharetta, serving Doraville and the surrounding metro.