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 Heat Pump Installation Across McDonough
A full heat pump installation in McDonough runs $3,500 to $7,500 depending on system size, duct condition, and whether you’re going with a standard split or a ductless setup. Most McDonough homes we quote fall between $4,200 and $6,800 for a properly sized, professionally sealed install. The number one mistake we see in this market is copying the tonnage from the old unit instead of running a real load calculation, which leaves you with a system that short-cycles through our mild springs and falls and never hits its efficiency numbers. Call us at (361) 306-9515 for a written quote with no number games, just straight math on your house.
McDonough’s housing stock is a true mix of 1990s slab subdivisions, newer crawlspace construction east of I-75, and infill homes around the Square. Marco Benitez, who runs our local crews, knows every neighborhood from Jonesboro Road down to Lake Dow. We arrive inside a two-hour window, put the price in writing before any work begins, and stand behind the install with a full-year written guarantee.
Why Dalton Heating & Air Is McDonough’s Preferred Heat Pump Installation Company
We’re a Garrison Partners company, operating under the Garrison Standard since 2003. That’s not a marketing line, it’s a set of rules every crew follows on every call in McDonough: arrive inside the stated 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. If a repair fails inside that year, we return at no charge. That’s the 365-Day Done Right Promise, and it applies to every heat pump install and service call we run from Locust Grove to Stockbridge.
McDonough homeowners have dealt with plenty of crews who show up late, quote one number, then pad the invoice. That’s why our written price goes to you before a single screw gets turned. Background-checked, uniformed technicians on every call, so you know exactly who is pulling into your driveway. Dispatch is coordinated from our Atlanta office, and when you call (361) 306-9515, a live person answers, 24/7, not a voicemail queue.
Ductless Heat Pump Installation in McDonough
Ductless heat pump installation in McDonough is the right call for homes without existing ductwork, sunrooms, converted garages, and older houses around the Square where running ducts would mean tearing into plaster and original framing. A ductless system puts a small outdoor condenser on a pad or wall bracket, runs a slim refrigerant line set to one or more indoor heads, and gives you zoned heating and cooling without touching your existing envelope. For a single-zone ductless install in McDonough, budget realistically within the $3,500 to $7,500 range depending on the number of heads and the SEER2 rating you choose.
When a Ductless System Beats Ductwork
If your McDonough home sits on a slab and you have no attic chase to run supply lines, ductless is often cheaper than forcing a traditional ducted heat pump. We’ve installed single and multi-zone systems in ranch-style homes along Highway 81 and in new construction off Jonesboro Road where the floor plan simply does not allow for trunk line runs. The equipment cost is higher than a basic split, but the labor is lower because we’re not cutting holes in every ceiling and crawling under a house for two full days.
What Gets Installed and Where
Most McDonough homeowners pair a ductless outdoor unit with either one large head in the main living space or two smaller heads, one in a primary bedroom and one in a family room. We size each head by room load, not square footage rules of thumb. That means a west-facing room with big windows on a Henry County summer afternoon gets more capacity than a shaded north room, even if both are the same size.
Heat Pump Service in McDonough
Heat pump service in McDonough means a diagnostic visit that runs $150 to $650 depending on what we find, or a tune-up at $80 to $200. A heat pump does double duty in this climate, cooling through July and August and heating through January, so it runs more hours annually than a furnace or straight AC alone. That’s why a refrigerant charge that reads fine on a 95-degree afternoon can still leave your heat pump underperforming on a 25-degree January morning. Our techs check subcool and superheat against manufacturer specs, not just gauge pressure.
What a Real Service Call Covers
We inspect the reversing valve, defrost board, capacitor, contactor, and both coils. We check static pressure at the return and supply. On McDonough homes with 1990s ductwork and long flex runs, static pressure above 0.8 inches of water column is common, and it quietly strangles any system you bolt onto it. Fixing the duct first often makes a bigger difference than upsizing the heat pump.
Why Charge and Airflow Go Together
Heat pump service that only tests refrigerant and calls it done misses half the system. We measure delivered airflow at the registers, because a properly charged heat pump with restricted airflow still won’t heat or cool the rooms you actually live in. In McDonough’s crawlspace-heavy housing stock, sagging flex ducts and crushed returns are regular findings. We fix the leak, seal the duct, then re-test charge. That’s the order that works.
Trusted Brands We Service in McDonough
Our factory-trained team services nine major residential HVAC brands, including Goodman, Rheem, York, and Daikin. For McDonough homeowners, that matters when a heat pump fails in August and you cannot wait a week for a part to ship from a distributor in Gwinnett. We keep common capacitors, contactors, defrost boards, and reversing valves stocked for these brands in our local truck inventory, so a heat pump repair on a home off Highway 20 or in the Cotton Fields subdivision is often a same-day fix. When you need a full heat pump installation, we can quote any of these manufacturers and match the right equipment to your load calculation, not to what happens to be on sale that month.
Common Heat Pump Installation Problems We See in McDonough Homes
- Copying the old nameplate tonnage. A 2007-era 3-ton unit on a home that has since had windows replaced and attic insulation added is now oversized. We see this regularly in McDonough subdivisions where original equipment fails and someone quotes a like-for-like swap without doing a Manual J. The result is short-cycling through spring and fall, higher humidity inside, and a unit that never reaches its rated efficiency.
- Refrigerant verified by gauges alone. A heat pump charged on a 95-degree July afternoon can still be dramatically undercharged in heating mode. Gauges do not tell the whole story. We test subcooling and superheat against manufacturer specs and run systems in both modes before signing off.
- Duct static pressure through the roof. Older crawlspace duct systems and 1990s slab subdivisions around McDonough routinely run 0.8 inches of water column or higher. That strangles airflow, makes the new heat pump work harder than the rating label suggests, and drives up your Henry County EMC electric bill. A load calculation that ignores duct condition is not a real load calculation.
- Oversized backup heat strips. In McDonough’s Piedmont climate, winter nights dip into the 20s often enough that auxiliary heat matters. But a 15kW heat strip on a properly sized heat pump is a band-aid for a capacity problem. We size the heat pump first and the strips as actual backup, not as a crutch for an undersized unit.
Pricing for Heat Pump Installation in McDonough, GA
A typical heat pump installation in McDonough falls between $3,500 and $7,500. The spread comes down to three things: the SEER2 efficiency you choose, the condition of your existing ductwork, and whether we’re doing a straightforward swap or a full system changeout with new linesets and a sealed return. A basic 14 to 15 SEER2 Goodman or Allied unit with a like-for-like air handler lands at the lower end of that range. A 17 to 18 SEER2 variable-speed system from a premium manufacturer with duct sealing and a new thermostat runs at the upper end. A service call or diagnostic visit for a heat pump issue runs $150 to $650, and a seasonal tune-up is $80 to $200. Estimates are free, in writing, and the number you see is the number you pay.
| Service | Price Range |
|---|---|
| Heat pump service call / diagnostic | $150 – $650 |
| Heat pump tune-up | $80 – $200 |
| Heat pump installation (full system) | $3500 – $7500 |
When you call (361) 306-9515, Marco or one of our Atlanta-dispatched coordinators walks you through what applies to your house. No pressure, no same-day discount games. Just a written price and a date on the calendar.
We Also Serve Cities Near McDonough
Our crews run heat pump installs and service calls throughout the southern metro from Conyers down to Locust Grove, and we cover Locust Grove, Stockbridge, Covington, and Hampton with the same two-hour arrival window and the same written pricing guarantee. If you’re just outside McDonough proper, give us a call and we’ll let you know exactly when we can be there.
Serving McDonough, GA - Our Local Coverage Area
We’re based in the McDonough 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 Heat Pump Installation in McDonough
Your backup heat strips are kicking on because the heat pump cannot extract enough heat from cold outdoor air to satisfy your thermostat, which in our area usually means a refrigerant undercharge, a failing outdoor capacitor, or an undersized unit. We see it constantly in McDonough during January cold snaps. The fix starts with a McDonough AC Repair service call to check charge and airflow before you start pricing a replacement.
Yes, and it matters more in McDonough than in a flat, uniform subdivision market because our housing stock mixes slab-on-grade, crawlspace, and infill construction. Two homes on the same street can have entirely different duct static pressure and heat gain profiles. A Manual J load calculation tells us what your house actually needs, not what the builder guessed at in 1998. If a contractor quotes a swap based on the old nameplate, get a second opinion. Call (361) 306-9515 for a quote that includes a real load calculation, free.
SEER2 is the updated efficiency testing standard that measures cooling output against energy consumption under more realistic conditions than the old SEER rating. It matters because the same unit may carry a lower SEER2 number than its SEER number, which affects what you actually pay Henry County EMC each month. We explain the numbers on every quote in plain terms: what the unit costs, what it saves, and the payback math for McDonough’s actual weather, not a national average.
Yes, ductless heat pump installation is a standard job for us across McDonough, especially in slab homes, older houses near the Square, and rooms where duct extensions do not make sense. A ductless system gives you zoned heating and cooling without any new ductwork, and the installation is typically one to two days depending on the number of indoor heads. Pricing follows the same written-quote process as any full heat pump installation.
The math starts with the age of the unit, the cost of the repair, and the condition of your ductwork. If a repair runs under $650 and your heat pump is under 12 years old, fixing it usually makes sense. If the compressor is gone on a 15-year-old unit and your ducts need major sealing, that money is better spent on a properly sized replacement. We give you both numbers, in writing, on the same visit, so you can decide with real figures instead of a sales pitch.
Get a Written Heat Pump Installation Quote in McDonough
If you need a heat pump installed, serviced, or honestly assessed in McDonough, call Dalton Heating & Air at (361) 306-9515. You’ll get a live person, a straight answer, and a written price before any work starts. We serve every neighborhood around McDonough, from Jonesboro Road to Lake Dow, with the same Garrison Standard on every job: on time, priced in writing, done right, left clean, guaranteed for a full year. Marco Benitez and the crew are ready to help.
Written by Marco Benitez, owner at Dalton Heating & Air, serving McDonough and surrounding Henry County communities.







Before
After
Before
After
Before
After