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Find Air conditioning pros in Mooresville

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+4 more

Serving Mooresville, NC and surrounding areas

Approved

In business since 1972

Warranties offered

Credit card accepted

"They come out every 6 months and do service on my unit. They check the air conditioning out in the spring and then the heating in the fall. I have been using them for 10 years. They are very responsive. The technicians are very knowledgeable and they are very reliable. They have always been very good with me. I haven’t really gotten a lot of experience in the last 10 years with anyone else. It has been very good."
AC Maintenance
Heating Repair
AC Maintenance
Heating Repair
AC Maintenance

+8

Response time11 hrs
Response rate100%
23 neighbors recently requested a quote
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 Mooresville, NC and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"All I have to say is that Absolute Comfort Heating and Air Conditioning exceeded our expectations on the installation of our new Trane heat pump! Alex was our point of contact, and he was very knowledgeable, and courteous. The installation crew arrived on schedule and impressed us with their expertise! Robert, Courtland and Cody got right to work and took out the old system… and then installed our new heat pump. They were all knowledgeable, friendly and courteous… answering any questions we had! One day! We have cool air tonight! Thanks guys!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Response time1 day
Response rate100%
85 neighbors recently requested a quote
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 Mooresville, NC and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Got my A/C unit replaced as the old one was 15 year old. Rhett and Nova from L3 HVAC did a very good job in installing and were very professional. I feel like they gave me a fair price. It has been onlt a day but new A/C seems to be working fine."
York
York
General Installation
General Installation
Response time1 day
17 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for Horne Heating and Air Conditioning
Horne Heating and Air Conditioning
4.7(
1,434
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Mooresville, NC and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"Johnathan Biagi did an excellent job servicing our HVAC to prepare for summer usage. He was very polite, professional and shared information about the air purifier that Horne has available. We like using this company!!!"
clean new lines between home and unit
After - HVAC System on the right was replaced.
After - HVAC System
Previous AC Unit
A surge protector installed with the new system, protecting your investment

+20

Response time8 hrs
Response rate100%
15 neighbors recently requested a quote
Avatar for NuBlue Air
NuBlue Air
4.4(
52
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+3 more

Serving Mooresville, NC and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I called and Mike returned my call quickly and set up a date.  He came and checked the air conditioner.  He did not try to convince me it needed any else other than a check up.  Was quick and efficient and mannerly.  I would certainly use him again even for more serious repairs.
"
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
Avatar for GSM Services
GSM Services
4.7(
106
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+6 more

Serving Mooresville, NC and surrounding areas

Approved

In business since 1927

Free estimates

Emergency services offered

"This was my spring check up on air conditioner before running.. Everything went very well. Everyone should have a service contract with GSM they are the best. I have tried others but they do not compare to GSM."
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
Avatar for CLT Quality Air LLC
CLT Quality Air LLC
5.0(
20
)
Central A/C - Install

Serving Mooresville, 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%
18 neighbors recently requested a quote
Subnet Zero Air Condition and Heating
4.6(
37
)
Central A/C - Service or Repair

Serving Mooresville, 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
Avatar for T. Byrd's Heating and Air, LLC
T. Byrd's Heating and Air, LLC
4.7(
166
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Mooresville, NC and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Josh came early to the appointment, introduced himself and immediately placed shoe covers over his shoes upon entering my home. He was beyond professional and explained everything that he found and the plan to repair the heating issue prior to getting started. He also made recommendations for maintenance but wasn't pushy in trying to make me buy anything extra. I HIGHLY recommend this company and will not only utilize T.Byrd's Heating and Air again, but I will refer them to my friends! Keep up the good work guys!"
Response time5 hrs
11 neighbors recently requested a quote
Recommended by91%of homeowners
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FAQs for air conditioning projects in Mooresville, NC

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Mooresville, NC homeowners’ guide to air conditioning services

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