Can a heat pump replace my furnace and AC?

Yes. A heat pump provides both heating and cooling, so it can replace a separate furnace and air conditioner. Many Dunwoody homeowners choose heat pumps because they simplify the system and offer efficient year-round comfort. A backup heat source handles the rare very cold days.

How long do heat pumps last?

With regular maintenance, a heat pump serves a Dunwoody home well for many years. Because heat pumps run year-round — cooling in summer and heating in winter — they get more use than a system that only handles one job. Annual maintenance helps extend the system's life.

Why is my heat pump blowing cold air in winter?

In heat mode, a heat pump produces air that feels warm but not as hot as a gas furnace. That's normal. If the air feels truly cold, the system may have a refrigerant issue, a stuck reversing valve, or a problem with the defrost cycle. A technician can diagnose the issue.

Do heat pumps work when it gets really cold?

Modern heat pumps are much better at cold-weather performance than older models. In Dunwoody, where very cold days are relatively rare, a heat pump handles the heating load efficiently for most of the winter. A backup heat source supplements the system on the coldest days.

Is a heat pump more efficient than a furnace?

In Dunwoody's climate, yes — for most of the heating season. Heat pumps move heat rather than creating it by burning fuel, which makes them very efficient in moderate temperatures. When temperatures drop significantly, a gas furnace backup can supplement the heat pump.

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Heat Pump Service in Dunwoody, GA

One Hour Heating & Air Conditioning® of North Atlanta

Heat Pump Service in Dunwoody, GA

Heat pump service in Dunwoody covers installation, repair, and maintenance for one of the most popular heating and cooling systems in the North Atlanta area. Heat pumps work well in Georgia's climate because they provide both cooling in summer and heating in winter from a single piece of equipment.

Why Heat Pumps Work Well in Dunwoody

Heat pumps are an excellent fit for Dunwoody's climate because they operate most efficiently in moderate temperatures — and that's exactly what Georgia delivers for most of the year. During summer, a heat pump works just like an air conditioner, moving heat from inside your home to the outside. In winter, it reverses the process and brings heat from the outdoor air into your home. Because Dunwoody winters are relatively mild compared to northern states, heat pumps can handle the heating load efficiently for the majority of the season. On the occasional very cold night, a backup heat source kicks in to supplement the system.

Heat Pump Repair in Dunwoody

Heat pumps have unique components that standard AC-only systems don't — including a reversing valve that switches between heating and cooling modes and a defrost cycle that keeps the outdoor unit from icing up in cold weather. When a heat pump develops problems, it could show up as no cooling in summer, no heating in winter, a unit that runs constantly without reaching the set temperature, or ice buildup on the outdoor unit. A technician trained in heat pump service understands how these systems work in both modes and can diagnose issues that a general AC tech might miss. Proper heat pump repair gets your Dunwoody home comfortable in any season.

Heat Pump Installation and Replacement

If your Dunwoody home's heat pump is aging, losing efficiency, or breaking down frequently, replacement with a modern unit can transform your comfort. Today's heat pumps are significantly more efficient than models from even ten or fifteen years ago, and they perform better in colder temperatures too. A new heat pump installation includes sizing the system for your home, installing the outdoor and indoor units, connecting refrigerant lines, and testing the system in both heating and cooling modes. For Dunwoody homes that currently use a separate AC and furnace, switching to a heat pump can simplify the system and reduce your year-round energy use.

About Dunwoody

Dunwoody's moderate four-season climate makes it ideal territory for heat pump systems. The city rarely sees extended periods of extreme cold, which means heat pumps can handle the heating load efficiently for most of the winter. Neighborhoods throughout Dunwoody — from the tree-lined streets near Brook Run Park to the residential areas off Chamblee Dunwoody Road — are full of homes that were either built with heat pumps or have switched to them during equipment upgrades. The technology is well-suited to the area's climate.

Serving Dunwoody and Surrounding Areas

Our heat pump service covers Dunwoody and surrounding communities including Sandy Springs, Brookhaven, Chamblee, Doraville, Roswell, and Johns Creek. We serve homeowners throughout the Perimeter area and North Atlanta.

Call (404) 689-4168 to schedule service.

Visit our office:

One Hour Heating & Air Conditioning
1360 Union Hill Rd Ste 5F, Alpharetta, GA 30004
(404) 689-4168
Open 24 hours

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Excellent service

Helen Albanese

in the last week

We had central AC added to our home 5 years ago. We decided to get an AC and furnace tune up before the summer. Matt, the technician from One Hour Heating and Air, was on time and polite. He pointed out that our furnace filter had not been changed since 2022. Big oversight by me. Matt explained how the air flows through the furnace and the direction the filter needs to be placed. I marked with a sharpie on the furnace an arrow so I would remember next time. Good piece of mind. Positive experience.

Justin Low

in the last week

I cannot recommend this HVAC company enough. The technician showed up exactly on time and was patient throughout the entire visit. They took the time to answer every single one of my questions thoroughly, making sure I felt completely comfortable with the process. What I appreciated most was their honesty—they gave me several clearly explained options for both repairing my current unit and replacing it. Best of all, they were not pushy and never once tried to upsell me on things I didn't need. It is rare to find such genuine, reliable, and pressure-free service these days. A 5-star experience from start to finish.

Paul Yi

in the last week

Best HVAC team in King County. Professional, reliable, and honest. Alex, the owner, takes great care of his customers. Highly recommend.

Denis

in the last week

I was initially skeptical of working with a franchise, but I was really impressed by how professional, helpful, and punctual their technician, Matthew, was throughout the visit. Pricing was reasonable and I will definitely be going with them for any future HVAC needs.

Max B

a week ago

Really good experience with One Hour. Alex was super communicative from the first call, got us on the schedule quickly and kept us in the loop the whole time. Marklus came out and handled the repair. Technically solid and left everything cleaner than he found it. Never felt pressured to buy anything extra which was refreshing.

vivek savsani

a week ago

We had our heating system stop working during the extreme snow storm, and this company responded quickly. Joe Bonness, who is an expert technician arrived on time, diagnosed the issue fast, and fixed it efficiently. He explained everything clearly and made sure the heat was working perfectly before leaving, even though it was late around midnight. We are very grateful for the quick and professional service during such freezing weather. Highly recommend their service!

Neha

a month ago

Huge thanks to my neighbor Chris for coming over late at night to fix my AC unit when it stopped working. I caught him and his family on the way out and told him my problem. He ended up leaving his plans early and took the time to figure it out and got it running again quickly. It meant a lot that he was willing to help out so late. He even gave me a few tips to look out for in case anything else happened. Super knowledgeable and a great neighbor to have! Give that guy a raise!!

Zaria Smith

a month ago

Tim was great. I can’t say enough good things. He came out to do a routine maintenance and unfortunately, I had to replace my furnace due to wear and tear. This happened on Friday, and he was at my house bright and early Monday to install the new furnace. He was pleasant the entire time, and very informative throughout. Thank you so much.

Sindel Garcia

a month ago

I will start by saying that KC was very professional explaining all aspects of the whole job that his team was going to do as far as to what we needed concerning a furnace rather we should repair or replace the existing furnace which by the way was 26 years old. Zo the service installer was quite thorough with the entire job, also Areej another technician did a spectacular job with cleaning all of the air ducts with detailing each step of the way up to and including the dryer vent as well a fantastic job was done. Although the job was extended one extra day was not a problem the problem came about when they informed us that they were going to return the next morning by 10am and by 11am we hadn't heard from them when a simple courtesy call with an eta would have gone a long way instead of me having to place a call to them. Overall the job was complete with a new furnace that was installed and the job was well done.p I would highly recommend One Hour Heating & Air Conditioning of Naperville.

Gerald Moody

a month ago

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