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 Union City
Furnace repair in Union City typically costs $150 – $700, and most jobs are diagnosed within the first hour of a service call. If your furnace won’t ignite, is blowing cold air, or is making a grinding noise, you want a straight answer on what it will take to fix it and what it’ll cost before anyone touches the unit. That’s how Dalton Heating & Air operates across Union City. Call (361) 306-9515 and a live person answers, any hour, any day.
We’re a Garrison Partners company, held to The Garrison Standard since 2003, and we cover every neighborhood in Union City with the same written-pricing rule: the number you approve is the number you pay. No door-upcharges. No “while we’re here” add-ons unless you ask for them. And every repair is guaranteed in writing for a full year.
Why Dalton Heating & Air Is Union City’s Preferred Furnace Repair Company
Union City homeowners deal with a specific mix of problems: older ranch houses near Highway 29 with original gas furnaces, newer townhome developments where the builder put in whatever unit the developer got a deal on, and everything in between. We work on all of it. Our Furnace Repair team is factory-trained across nine brands, so when we walk into a home off Roosevelt Highway or a subdivision near Oakley Road, we’re not flipping through a generic manual. We already know the unit.
Marco Benitez runs our operation, and the standard he set is simple: arrive inside the window, put the price in writing before starting, do the job by the book, leave the site clean, and stand behind the work for a full year. That’s The Garrison Code. Not a marketing phrase. It’s the ordering document for how every tech behaves on your property.
Our average response time to Union City is under four hours for a no-heat call, and we keep local parts inventory for the furnaces we see most in this area. That means fewer “we’ll have to order it and come back” conversations when the temperature is dropping.
Boiler Repair in Union City
Boiler Repair in Union City is less common than gas furnace work, but when a boiler fails, the symptoms are different: no hot water to radiators, banging or kettling sounds from the tank, and rooms that heat unevenly. We see these in older Union City homes that still run hydronic heat, particularly in established neighborhoods where the plumbing was laid decades ago. A boiler repair in this market runs $150 – $700, depending on whether we’re replacing a zone valve, a circulator pump, or an aquastat.
Circulator Pump and Zone Valve Failures
Most no-heat boiler calls in Union City turn out to be a seized circulator pump or a failed zone valve. The pump moves hot water through the house. When it dies, the boiler fires but heat never reaches the radiators. We stock common pump models locally and can usually swap one the same day.
Pressure and Expansion Tank Problems
Older boilers lose pressure when the expansion tank’s bladder gives out. The system then over-pressurizes and dumps water through the relief valve, which homeowners sometimes mistake for a leak. That’s a straightforward fix, but it’s also a warning sign the boiler hasn’t been serviced in a while.
Gas Furnace Repair in Union City
Gas Furnace Repair in Union City is the bulk of what we do from December through March, because the mild fall hides a furnace problem until the first genuinely cold morning. Common failures include failed ignitors, faulty gas valves, and cracked heat exchangers. Most repairs in this area land between $150 and $700. The high end is usually a blower motor or heat exchanger replacement, where the part itself is several hundred dollars before labor.
Ignitor and Flame Sensor Replacement
When a furnace short-cycles or won’t fire at all, it’s often a $150 – $350 ignitor or flame sensor issue. The ignitor glows to light the gas; the flame sensor tells the board the burners are lit. Both are cheap parts that fail predictably. We replace them in one visit.
Gas Valve Repair and Replacement
A gas valve that won’t open or won’t hold pressure is a safety issue as much as a comfort one. We test valves under load, verify gas pressure with a manometer, and replace the valve when it’s out of spec. This tends to run $250 – $500 depending on the furnace model.
One safety note: a cracked heat exchanger can leak carbon monoxide into your home. It’s not a guess. It’s a test. If you smell a faint exhaust odor or notice soot around the furnace, don’t run the unit. We’ll test it before we’ll let you keep using it.
Trusted Brands We Service in Union City
Dalton Heating & Air services Trane, Lennox, Goodman, and Rheem among the nine major residential brands our techs are factory-trained on. For Union City customers, that matters because we stock the ignitors, control boards, and blower motors these specific units use. A Goodman furnace in a Fairburn rental and a Trane system in a Shannon Parkway townhome don’t use the same parts. We carry both, so the fix happens on the first visit more often than not.
Common Furnace Repair Problems We See in Union City Homes
- Short cycling from oversized furnaces. Many Union City homes got a furnace sized by rule of thumb, not a room-by-room load calculation. The unit heats the house in ten minutes, shuts off, and repeats. That cycle burns through ignitors and blower motors faster than a properly sized furnace would.
- Failed capacitors and blower motors after long cooling seasons. The same system that ran all summer with the AC now has a dusty blower wheel and a stressed capacitor. The first cold snap finds the weak point. This is the most common mid-winter failure we see off Flat Shoals Road and beyond.
- Cracked heat exchangers in aging gas furnaces. Mild winters mean furnaces in Union City get less annual stress, but they also get less annual inspection. A heat exchanger crack often goes unnoticed for years until a carbon monoxide detector goes off or a tech actually looks.
- Ignition failures from dirty flame sensors. Gas furnaces in Union City pull combustion air from inside the home or crawlspace. Dust, pet hair, and lint coat the flame sensor, and the furnace suddenly won’t stay lit. A cleaning fixes it in most cases; a full replacement when the rod is too far gone.
Pricing for Furnace Repair in Union City, GA
Here’s what we actually charge in Union City. No “depends” without numbers.
| Service | Typical Price Range |
|---|---|
| Gas Furnace Repair | $150 – $700 |
| Boiler Repair | $150 – $700 |
| Furnace Tune-Up | $80 – $200 |
What moves the price is the part. An ignitor is cheap; a blower motor or gas valve is not. The written quote you approve before we start is the number you pay. We do free estimates on replacement scenarios, so if the repair estimate is high and the furnace is 15+ years old, we’ll give you a repair-versus-replace comparison with real numbers for both paths.
We Also Serve Cities Near Union City
If you’re in Fairburn, Palmetto, Riverdale, or Forest Park, we cover those areas too. For residential clients in the metro perimeter, Furnace Repair in Union City is the anchor we work from, but our techs run calls across the southern metro every day.
Serving Union City, GA - Our Local Coverage Area
We’re based in the Union City 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 Union City
A furnace that needs a $200 ignitor should almost always be repaired. A furnace with a cracked heat exchanger, a failing blower motor, and 15+ years of service usually shouldn’t be. In Union City, we use a simple test: if the repair costs more than half the price of a right-sized replacement, we’ll show you the math and let you decide. Call (361) 306-9515 for an exact quote on either path.
A load calculation tells you whether your furnace is even the right size for your home before you pour money into fixing it. We routinely find Union City homes with furnaces oversized by half a ton or more, particularly in 1,800 – 2,200 sq ft ranch and two-story builds. When we find that, repairing the old unit may just be delaying a replacement that should be right-sized now. That’s why we include a load check on major repair calls at no additional charge.
Short-cycling after a repair usually means the furnace is oversized for the home’s actual heat load. The unit satisfies the thermostat too quickly and shuts down. The fix isn’t another part swap; it’s verifying the load calculation and potentially right-sizing the equipment. On a call near Shannon Parkway, our tech found a Carrier furnace with a failing heat exchanger and a blower motor pulling high amps. The real issue was a unit oversized by nearly a ton for the 1,800 sq ft home. Right-sizing the replacement dropped static pressure from 0.9 to 0.5 in. w.c. and stopped the cycling.
A proper tune-up here runs $80 – $200 and should include a combustion analysis, gas pressure check, blower cleaning, flame sensor cleaning, safety switch test, and a heat exchanger inspection. Our techs write down what they found in a report you keep. We’re not paid on what we sell, so if your furnace is fine, we’ll tell you it’s fine.
Yes. We repair boilers and gas furnaces, plus heat pumps and full HVAC systems. If you have a hydronic system in an older Union City home and it’s banging, leaking, or not heating, we’ll diagnose it the same way: price in writing before work, fixed same-day when parts are available, and guaranteed for a year.
Get Your Furnace Repair Quote in Union City
Call (361) 306-9515 for a free estimate on furnace repair or replacement in Union City. A live person answers. We’ll put the price in writing before any work begins, and every repair is guaranteed for a full year under our 365-Day Done Right Promise. If the repair fails in that time, we return at no charge. That’s the standard Marco Benitez holds every tech to, on every job, in every home we enter.
Written by Marco Benitez, Owner at Dalton Heating & Air, serving Union City and the southern metro since 2003 under The Garrison Standard.







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