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Verified Reviews for Air Conditioning pros in Cornelius, NC

*The Angi rating for Air Conditioning companies in Cornelius, NC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.

*The HomeAdvisor rating for Air Conditioning companies in Cornelius, NC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.

Last update on April 20, 2026

Find Air conditioning pros in Cornelius

Avatar for Acosta Heating, Cooling & Electrical
Acosta Heating, Cooling & Electrical
4.4(
468
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Cornelius, NC and surrounding areas

Approved

In business since 1972

Warranties offered

Credit card accepted

"They didn't come on time at all.  The issue I had was that they had a price advertised for a system check and when they came they said that I had two different air conditioning units and it would be two different prices.  I felt that was a bit misleading and they didn't say that when I called to make the appointment. The guy that came was fine.  He was great.  I was happy with the service.  I just felt mislead."
AC Maintenance
Heating Repair
AC Maintenance
Heating Repair
AC Maintenance

+8

Response time11 hrs
Response rate100%
25 neighbors recently requested a quote
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Avatar for Comfort Monster Heating & Air / Absolute
Comfort Monster Heating & Air / Absolute
4.8(
236
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+1 more

Serving Cornelius, NC and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"We have used Absolute Comfort Heating and Air for over a year now. Each time we have used their services, Shawn has been able to find the cause of the issues with our systems without having to order major parts or replace the old systems. Shawn and his team are professional, dependable, trustworthy, honest, and the ABSOLUTE best out there. We were so lucky to find these guys after years of having bad experience with other companies. They went above and beyond to ensure our family (with new baby) was warm in our home- (ie: they came out the same day that we called and made a trip after hours to fix another issue) so thankful guys!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Response time1 day
Response rate100%
82 neighbors recently requested a quote
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Avatar for Brothers- ARS Air, Heat, and Plumbing
Brothers- ARS Air, Heat, and Plumbing
4.5(
199
)
Central A/C - Service or RepairCentral A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Cornelius, NC and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1995

Free estimates

Credit card accepted

"From start to finish a great experience! Called with no air conditioning yesterday, a Friday holiday weekend. The lady that answered the worked wonders and found tech close by that could come the next morning. I received a call the tech was going to be earlier than expected. Great news on a hot day with no air. The service was efficient and fair priced. Within a hour my unit was up and running again. The sales office followed up right after to schedule a time to look a future options since my unit is getting up there in age. No pushy sales. Professional, quality service. I will use them in the future and highly recommend this company."
System Installation
768 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for Retro Air, LLC
Retro Air, LLC
5.0(
27
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+2 more

Serving Cornelius, NC and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Excellent Service! Finally found a HVAC company that is professional and reasonable. This is my go to AC guy!"
York
York
General Installation
General Installation
Response time1 day
17 neighbors recently requested a quote
Recommended by74%of homeowners
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Avatar for Appalachian Air Ducts
Appalachian Air Ducts
4.8(
516
)
Air Ducts & Vents - Clean

Serving Cornelius, NC and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"I initially scheduled an appointment to have my dryer vents cleaned. Kevin arrived earlier than the scheduled time and that was much appreciated (he actually called to ask if he could come earlier). After he took care of the dryer vents, I asked if he could take a quick look at the fan/exhaust in one of my bathrooms and let me know if I could schedule a later date to have those cleaned. Not only did Kevin take a look, but he cleaned them with a smile and no extra charge. Kevin, with Appalachian Air Ducts, is a true professional and I will absolutely hire them in the future!"
Additional Photos
Additional Photos
Before
After
Response time2 days
1 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for GSM Services
GSM Services
4.7(
106
)
Central A/C - InstallCentral A/C - Install - For BusinessAir Ducts & Vents - Clean+3 more

Serving Cornelius, NC and surrounding areas

Approved

In business since 1927

Free estimates

Emergency services offered

"They did a great job installing a new dryer vent."
New Air Conditioners
AC System Replacement in Charlotte, NC
Dust and debris from ductwork pulled into the duct cleaning machine
Ductless Mini Split Installation
AC Install Gastonia

+62

Response time1 day
35 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Hutch-N-Son's HVAC
Hutch-N-Son's HVAC
5.0(
34
)
Central A/C - Service or Repair

Serving Cornelius, NC and surrounding areas

Approved

In business since 2003

Emergency services offered

Customers say: True professional

"Chris did a great job replacing evaporator coil in our A/C system. Knowledgeable, punctual and friendly. The price was very competitive. Definitely recommend this company and will use them for future service and projects."
Response time3 hrs
Response rate96%
Recommended by93%of homeowners
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Avatar for NuBlue Air
NuBlue Air
4.4(
52
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Cornelius, 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
8 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for CLT Quality Air LLC
CLT Quality Air LLC
5.0(
20
)
Central A/C - Install

Serving Cornelius, NC and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"NC Quality Air provided excellent service from start to finish. The technicians were professional, knowledgeable, and took the time to explain everything clearly. The work was done efficiently and the quality really shows. I highly recommend NC Quality Air for anyone needing reliable HVAC service."
QPS Fleet
old unit
old unit
old unit
old unit

+75

Response time8 hrs
Response rate100%
15 neighbors recently requested a quote
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Subnet Zero Air Condition and Heating
4.6(
37
)
Central A/C - Service or Repair

Serving Cornelius, NC and surrounding areas

Approved

In business since 2010

Free estimates

Small jobs welcome

"Reagan called to ask about my issue with my AC, and made time to come by my house the same day. He called prior to arriving and came at the time he said he’d be here. He was professional, courteous and informative. I would recommend him, and will absolutely contact him again for future HVAC needs."
Response time5 hrs
Recommended by96%of homeowners
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Showing 1-10 of 332
Air Conditioning questions, answered by experts

A home AC unit provides anywhere from one-half to five tons of cooling and requires approximately two to four pounds of refrigerant per ton of cooling. At approximately five to 10 minutes to fill one pound of refrigerant, a home that requires three tons of cooling will take about six to 12 pounds of refrigerant and approximately 30 minutes to two hours to completely recharge the unit.

Capacitors are the most frequent part of an HVAC system to experience failure. These components are crucial for starting the motors that power the fans and compressor, but over time, they may become worn or fail due to electrical surges or regular wear and tear. When capacitors malfunction, HVAC systems may experience decreased heating or cooling efficiency, or even total system failure. Replacement or maintenance of capacitors is a common requirement for the optimal functioning of HVAC systems.

An HVAC system typically lasts between 10 and 30 years, with an average lifespan of 15 to 25 years. The longevity of the system is influenced by factors such as the quality of the unit, usage frequency, local climate, and how well it is maintained. Regular maintenance, including cleaning, filter replacements, and professional inspections, can help maximize its lifespan. Different components within the system have varying life expectancies. For example:

  • Furnaces: 15 to 30 years

  • Boilers: 20 to 35 years

  • Air Conditioners (AC units): 12 to 20 years

  • Heat Pumps: 10 to 20 years

  • Ductless Mini-Splits: 10 to 30 years

You can buy a house with a 15-year-old HVAC system if you inspect the system for performance and budget for a replacement within the next three years. You can also negotiate the price with the sellers. Ask to look at the unit’s maintenance records and energy bills for the last two years to determine the shape of the HVAC system and its operating costs. Spend time in each room of the house to gauge if the HVAC keeps the home at a consistent temperature throughout.

A calculation method that your HVAC contractor will use to ensure your system does what it's supposed to is measuring duct output, or its CFM. The calculation requires knowing the cross-sectional area of the ductwork and determining the air speed past any given point within it.

The Cornelius, NC homeowners’ guide to air conditioning services

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

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