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TRUSTED BY DENVER, NC HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon836
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Denver

Avatar for GSM Services
GSM Services
4.7(
105
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+22 more

Serving Denver, NC and surrounding areas

Approved

In business since 1927

Free estimates

Emergency services offered

"I called GSM inquiring about their HVAC and insulation services. I also asked if I could have someone perform a Manual J load calculation (surprise to me, the Manual J calc was free!) as I felt that my existing heat pump was sized too small for my home (2.5 ton dual-zone single stage heat pump for 2200sq ft 2-story house). We agreed on an appointment time, and they sent Kelly out to my house. Kelly was very nice and professional, and did a thorough job explaining what all could be done and what my options were. Due to having so little room to work inside of the mechanical closest, you would have to remove the air handler completely just to wrap all of the duct work. Since I would be removing the old air handler that was 8 years old anyway, I decided to replace the entire system with a new Amana 3-ton 18 SEER dual-zoned heat pump. Kelly also told me they could seal up the hole & the mechanical closet so that hot air could no longer enter that space as well. I agreed to their quote, and they came out a week later (it would've been sooner but GSM wanted to make sure that the new system was designed properly, so they had to architect and design the layout of the new equipment to fit the small space) to do the work. Owen and Jason came out to perform the installation. They were both very professional & thorough, and they did an excellent job with the swap out & installation of the new heat pump. When GSM told me that it would take two days to do the work, I was prepared to be miserably hot trying to sleep at night with no air conditioning. Not only did GSM bring a portable AC unit for me use that evening so that wouldn't be the case, Owen and Jason actually got the heat pump wired and working the first day so I had full AC that evening, and the portable unit wasn't needed! They also insulated the attic space & mechanical closet with spray foam and foam board so the hot attic air will no longer be an issue. All in all, my experience with GSM has been great! They've been easy to communicate with throughout the entire process, they did an excellent job with the installation of the new equipment, and now I can rest easy knowing that everything has been taken care of!"
New Air Conditioners
AC System Replacement in Charlotte, NC
Dust and debris from ductwork pulled into the duct cleaning machine
Dryer Vent Cleaner Charlotte, NC
Ductless Mini Split Installation

+66

Response time1 day
41 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Appalachian Air Ducts
Appalachian Air Ducts
4.8(
516
)
Air Ducts & Vents - Clean

Serving Denver, NC and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"I  had never had the service before in any of the other homes I owned.  I was not sure what to expect and how the cleaning process actually worked.  The two gentleman arrived right on time.  They explained everything to me and how the equipment worked.  After walking through the house, they unloaded the equipment and went right to work.  Whenever I asked a question they it was answered.  Before they left one of the gentleman asked if I had a clean filter for the HVAC unit and offered to put the new one in for me.  I did and he did.   The entire process took about 90 minutes including making sure everything was cleaned up before they left. .  I would definitely used the service again. Very professional, efficient and informative.
"
Additional Photos
Additional Photos
Before
After
Response time2 days
2 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for NuBlue Air
NuBlue Air
4.4(
52
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+25 more

Serving Denver, NC and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Mike has been coming to my house to do work on my heating and air systems for a decade.  He is always reliable, friendly, on time and a true pleasure to have around.  I will always use Cool Comfort for my HVAC needs!!!  :)
"
HVAC Installation Services
Vent & Duct Cleaning
Indoor Air Quality Solutions
Thermostats
HVAC Maintenance

+36

Response time1 day
6 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Alcides Pastora
Alcides Pastora
5.0(
11
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceElectric Furnace / Forced Air Heating System - Repair+1 more

Serving Denver, NC and surrounding areas

Approved

In business since 2010

Credit card accepted

At Alcides Pastora HVAC Services, we specialize in HVAC repair, maintenance, troubleshooting, and window system installations. We are committed to providing honest recommendations, quality workmanship, and reliable service at fair prices. Whether you need air conditioning repair, heating service, preventive maintenance, or emergency diagnostics, we work hard to keep your home comfortable year-round. Customer satisfaction, clear communication, and attention to detail are our top priorities

Avatar for Guardian Heating and Cooling
Guardian Heating and Cooling
5.0(
10
)
Central A/C - InstallHeat Pump - Install or ReplaceHeat Pump - Repair or Service+6 more

Serving Denver, NC and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

With years of hands-on experience and a commitment to reliable comfort, we specialize in heating, ventilation, and air conditioning solutions tailored to homes and businesses alike.\n\nOur legacy is built on honest service, skilled craftsmanship, and personalized care. Whether it’s a simple repair or a complex installation, we treat every customer like family and every project like it’s in our own home. From emergency services to routine maintenance, we’re here when you need us most—rain or shine, hot or cold.

Founders
Install
Goodman
Goodman
Gree

+4

Response time4 hrs
Response rate100%
18 neighbors recently requested a quote
Avatar for Accu-Rite Services Inc
Accu-Rite Services Inc
4.8(
20
)
Electric Furnace / Forced Air Heating System - InstallCentral A/C - InstallBoiler or Radiator Heating System - Install or Replace+47 more

Serving Denver, NC and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"They are so great.  From Samantha who answered the call, to Steve who came out for repairs they made me feel like my job was the only thing important to them at the time.  When I called back a couple weeks later looking for a written statement of what the professional had done to provide the buyer, they obliged.  I had the information emailed within minutes.  If I was staying in NC I would serisouly use them for all of my HVAC needs without hesitation!  I will recommend them to all of my friends any family."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Greenwing Electrical
Greenwing Electrical
5.0(
11
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Denver, NC and surrounding areas

Approved

Emergency services offered

Credit card accepted

Customers say: True professional

"Jason has done multiple projects for me. Some were planned, some were emergencies . In all cases, Jason was here promptly and did a phenomenal job. He is friendly, fairly priced and works quickly and efficiently. I will definitely use him anytime I need any HVAC or electrical done."
Electrical Project
Electrical Project
Recessed lights and pendant lights
Additional Photos
Mocksville

+3

18 neighbors recently requested a quote
Recommended by90%of homeowners
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Heating and Air Conditioning questions, answered by experts

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

Replacing an HVAC system does not always include new ductwork. The decision depends on the condition of your existing ducts. If they are in good shape, correctly sized for the new unit, and meet current standards, they can often be reused. However, if the ducts are damaged, poorly designed, or improperly sized, they will likely need to be replaced or upgraded to ensure the new system operates efficiently. An HVAC contractor will assess your ductwork and recommend the best course of action. Typically, ductwork is purchased separately, and a full replacement will add to the overall project cost.

A frozen coil can cause permanent damage to your HVAC system and lead to costly repairs if not fixed. It can cause the unit to overheat and also cause the compressor to fail. It’s vital to turn the unit off if the coil is frozen and address the issue as soon as possible. 

High humidity, bad insulation, warmth from sunlight, and poor circulation are all reasons your home’s hotter inside than out. While this is what you want in the colder months, summer can become unbearable if this is a constant. Try to find the cause, but you need to remember that issues like this require a permanent fix (unless you want to bear down during the summer months).

Aside from needing HVAC repair, there are times when you may need to replace your unit. HVAC replacement costs $5,000 to $12,500. Here are some telltale signs that your HVAC unit is going bad:

  • Your unit is 10 years or older.

  • Your home is very humid.

  • The unit keeps cycling without producing cool air.

  • You need to repair the unit frequently.

The Denver, NC homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.