Furnace & heating
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Carrier
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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 runs $150 – $700, and most jobs are done same-day or next-day by a technician who knows this city’s housing stock. Dalton Heating & Air Sandy Springs serves Doraville from ranch homes off Buford Highway to split-levels near Shallowford Road, with written pricing before any work starts and a full-year guarantee on every repair. Need heat now? Call (478) 400-5908 and a live person answers, 24/7.
Doraville homes are not like the newer subdivisions ringing the Perimeter. Many were built in the 1960s and 70s with original ductwork, aging electrical panels, and furnaces that have seen decades of muggy Georgia air. That means repair work here often requires more than swapping a part. It requires a tech who understands how older infrastructure interacts with modern heating loads.
Why Dalton Heating & Air Sandy Springs Is Doraville’s Preferred Furnace Repair Company
We operate under The Garrison Standard, a set of rules that started with Garrison Partners in 2003 and has not changed: arrive inside the window, put the price in writing before any work begins, do the job by the book, leave the site clean, and stand behind the repair for a full year. That is not marketing language. That is the Garrison Code, and every one of our background-checked, uniformed technicians is bound to it on every single call in Doraville.
When our techs drive into Doraville, they know the difference between the garden-style apartment complexes near I-285 and the ranch-home blocks further down Buford Highway. They know the 1970s Rheem and Goodman units common in this market, and they stock capacitors, ignitors, gas valves, and blower motors on their trucks so most Doraville repairs are finished in one visit. Marco Benitez, who leads our team, has zero tolerance for a furnace repair that holds for three weeks and then fails. If a repair fails within the guarantee period, we return at no charge. Written guarantee. Free second visit.
Styles & brands we work with
Boiler Repair in Doraville
Boiler Repair in Doraville is less common than furnace work, but not rare. Older ranch homes and a few 1960s apartment buildings in Doraville still run hydronic baseboard or radiator systems, and those boilers see the same humidity and sediment issues as everything else in metro Atlanta. A boiler repair in a Doraville home typically runs $150 – $700 depending on whether we’re replacing a circulator pump, a pressure relief valve, a thermocouple, or a zone valve. Radiant systems that run hard through January cold snaps can also build sediment in the heat exchanger that needs flushing and checking for bleed line integrity.
Circulator and Zone Valve Work
Most hot-water boiler failures in Doraville split into two camps: the circulator pump stops moving water, or a zone valve stops opening. On older hydronic systems we often find the original zone valves still in place from the 1970s, with seized actuators and corroded wiring. We bench-test the pump, check amp draw, and replace only what is failed.
Pressure and Sediment Issues
Doraville’s municipal water has the same mineral character as the rest of DeKalb County, and that means boilers on open systems pick up scale. We check the pressure-reducing fill valve, the expansion tank, and the relief valve on every boiler visit. If the boiler is short-cycling or the pressure gauge surges when the burner fires, sediment is usually the culprit.
Gas Furnace Repair in Doraville
Gas Furnace Repair in Doraville is what most of our calls come in for, especially between October and February. Most units in this city are natural gas, but a meaningful number of homes on the edges of Doraville, particularly on larger lots and along rural-feeling streets, run propane from an on-site tank. A gas furnace repair in Doraville typically lands between $150 and $700. The lower end covers ignitors, flame sensors, and pressure switches. The higher end covers gas valve replacement, blower motor replacement, or heat exchanger work.
Ignitors and Flame Sensors
If a Doraville gas furnace clicks but does not light, or lights and then drops out after a few seconds, the flame sensor is usually failing or the hot-surface ignitor is cracked. Hot-surface ignitors are ceramic and fragile; they crack with age and with the kind of voltage flicker that comes from summer storm-season brownouts. We replace them with OEM parts matched to your specific Carrier, Bryant, American Standard, Daikin, Goodman, Rheem, York, Trane, or Lennox unit.
Gas Valve and Burner Work
A gas valve on an aging Doraville furnace can fail two ways: it stops opening, or it opens partially and starves the burner assembly. Either condition produces no heat, weak heat, or intermittent flame. Gas valve replacement requires checking inlet and outlet pressure with a manometer, verifying the manifold pressure matches the rating plate, and leak-testing every fitting. This is not a DIY job. A trained professional should always handle gas line work.
Trusted Brands We Service in Doraville
Our techs are factory-trained to service nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. That covers the vast majority of furnaces sitting in Doraville basements, attics, and crawlspaces right now. We stock local parts in our Atlanta warehouse for Doraville customers, so a common ignitor, control board, or flame sensor is usually on the truck the first visit. If your Doraville home has a Daikin heat pump paired with a gas furnace, or an American Standard 80% unit from the early 2000s, we know the quirks of those specific models without looking at the manual.
See the difference
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AfterCommon Furnace Repair Problems We See in Doraville Homes
- Undersized electrical panels tripping blower circuits. Many 1960s-70s ranch homes in Doraville have original 100-amp or 125-amp panels, and a modern high-efficiency blower motor can pull enough at startup to trip a 15-amp breaker. We check amperage draw at the panel on nearly every repair call in older Doraville housing stock.
- Propane furnaces running dry on cold snaps. Doraville homes on larger lots sometimes rely on leased propane tanks, and no one monitors the gauge until the furnace won’t light on a 25-degree night. We help arrange an emergency fill and then verify the furnace fires clean once pressure is restored.
- Heat exchanger cracks from short-cycling and wind exposure. Ranch homes with no wind shelter see drafts move through original ductwork, which causes temperature swings and short burner cycles. Repeated thermal stress eventually cracks heat exchangers. We inspect with a combustion analyzer on every gas furnace repair where the heat exchanger is suspect.
- Condensate line clogs in humid crawlspaces. High-efficiency condensing furnaces in Doraville crawlspaces produce acidic condensate, and if the line gets blocked by mold or debris, the pressure switch locks out the furnace. We clear the line and treat with an anti-algal solution so the lockout doesn’t return next month.
Pricing for Furnace Repair in Doraville, GA
We publish our repair ranges because homeowners in Doraville deserve to know what the job costs before the truck rolls. Here is what you can expect:
| Service | Typical Cost in Doraville |
|---|---|
| Gas Furnace Repair | $150 – $700 |
| Boiler Repair | $150 – $700 |
| Capacitor replacement | $150 – $300 |
| Blower motor replacement | $350 – $650 |
The final price depends on the part failed, the age of the system, and how hard it is to reach the unit. But the price is written down and handed to you before any work starts. Not a ballpark. Not an estimate that changes at the door. A written quote. Estimates are free: call (478) 400-5908.
In Doraville’s 1960s-70s ranch homes, one issue our techs run into more than anywhere else is the original electrical panel. These panels were sized for a furnace with a belt-driven blower drawing maybe 6 or 7 amps. A modern high-efficiency furnace with an ECM blower motor can pull considerably more at startup, and if the home also has a heat pump for shoulder-season cooling, the combined load trips the breaker every time. Our repair work on older Doraville homes frequently includes checking amperage draw at the panel and verifying the circuit can support the existing equipment. In newer subdivisions just north near Kennesaw, that step is rarely necessary because the panels were built for modern loads. But here, it is often the reason the furnace “keeps breaking” when nothing is actually wrong with the burner assembly.
Our tech drove out to a split-level off Shallowford Road where a 1970s Rheem gas furnace kept tripping its breaker. We found the blower motor pulling 14 amps on a 15-amp circuit, a dying capacitor making the draw worse, and a heat exchanger sooted from years of high static pressure in undersized ducts. We replaced the capacitor, rewired a dedicated circuit, and verified the heat exchanger before leaving. The furnace has run clean since, and the homeowner stopped resetting breakers every two nights.
A second Doraville-specific problem involves outbuildings and workshops. Many properties in the industrial edges of Doraville, especially along Buford Highway, have detached garages or warehouse-style structures with their own furnaces. These units often have no natural gas line, so they run on electric or propane. When wind-blown debris or kicked-up grit blocks the exhaust vent, the rollout switch trips and the heat dies, usually on a weekend when no one is around to notice. Our techs check vent terminations, airflow, and the limit circuit on every outbuilding furnace call in Doraville.
We Also Serve Cities Near Doraville
Our Furnace Repair team handles service calls across Doraville and the surrounding area, including Sandy Springs, Kennesaw, Candler-McAfee, and Druid Hills. If you are on the edge of the 30340 ZIP code or just across the DeKalb line, the service area is the same and the response time holds steady.
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
The first thing is the propane tank gauge. Doraville homes on larger lots with on-site propane tanks almost never have a monitoring system, and when a cold snap hits, the furnace quits because the tank is at 5% and the pressure has dropped below what the gas valve needs. Call us at (478) 400-5908, and while you are on the phone we’ll help you check the gauge and arrange an emergency fill if needed. Once the propane company tops off the tank, we can verify the furnace fires clean and the regulator is holding pressure.
Yes. Our techs routinely service propane and electric furnaces in detached garages, workshops, and light industrial outbuildings around Doraville’s Buford Highway corridor. These units often have different venting and clearance requirements than a house furnace, and we inspect the vent termination, the rollout switch, and the high-limit circuit as part of the repair. If the exhaust vent is repeatedly blocked by wind-blown debris, we will recommend a screened termination that keeps the furnace from locking out on every gusty day.
Almost always, the blower motor is drawing too much amperage for the original 15-amp circuit in a 1960s-70s Doraville panel. The motor may be failing, or it may be fighting a dying capacitor that raises inrush current at startup, or the panel itself may be undersized for the new high-efficiency blower installed years after the house was built. We measure amp draw at the panel on every call like this. The fix may be a new capacitor, a new motor, or a dedicated circuit, and we’ll give you a written quote before touching anything. Call (478) 400-5908 for a diagnosis.
If the heat exchanger is cracked on a furnace that is 15 years old or older, replacement is usually the better money. A cracked heat exchanger is a carbon monoxide risk, and the cost of the heat exchanger part plus the labor to install it often approaches 40-60% of a new furnace. We will show you the crack with a camera, explain the repair-versus-replace numbers honestly, and let you decide. On newer units still under parts warranty, a heat exchanger repair is absolutely worth doing. In either case, the repair is guaranteed in writing for a full year; if it fails in that time, we return at no charge.
It could be either. In Doraville split-levels we see two common causes: a thermostat wired incorrectly after a homeowner replaced it themselves, or a furnace that fires briefly and then shuts down on a flame sensor or limit switch fault, leaving the blower running on cold air. If the thermostat was recently touched, that is the first suspect. If nothing changed, we start with the flame sensor, the pressure switch, and the condensate line. Call (478) 400-5908 and a live person answers 24/7 to schedule a Doraville visit, free estimate included.
Written by Marco Benitez, Owner at Dalton Heating & Air Sandy Springs, serving Doraville and surrounding areas as a Garrison Partners company since 2003.