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TRUSTED BY MOUNT PLEASANT, SC HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.3k+
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Mount Pleasant - Updated Nov 2026

Avatar for Carney & Son 72 Degrees
Carney & Son 72 Degrees
4.6(
79
)
Air Ducts & Vents - CleanCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+6 more

Serving Mount Pleasant, SC and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"The team from Carney & Son 72 Degrees helped us solve a challenging AC issue. Their solution delivered the cooling results we were looking for in a cost efficient manner. They were excellent at communicating our options to us and helped us make an educated decision about the best option to meet our needs and budget. They will be our first call for any HVAC need that arises in our future."
Carney & Son 72 Degrees
Carney & Son 72 Degrees
Carney & Son 72 Degrees
Before Duct Cleaning
After Duct Cleaning

+11

Response time7 hrs
6 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Maximum Air Experts
Maximum Air Experts
5.0(
19
)
Central A/C - Service or RepairThermostat - Repair or Reprogram

Serving Mount Pleasant, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Credit card accepted

"Damien came out and checked my unit and told me exactly what was wrong. The unit had a leak. He fixed the problem and checked back on several occasions to make sure that the unit was running properly ( never had a company to do a follow up like he did). Very impressed. He will be the only person that I will call for any future HVAC needs. Very professional and will highly recommend."
Response time6 hrs
1 neighbors recently requested a quote
Recommended by50%of homeowners
5 Star Charleston LC
5.0(
13
)
Central A/C - Service or RepairDuctless Mini-split Heating System - Install or ReplaceElectric Furnace / Forced Air Heating System - Repair+7 more

Serving Mount Pleasant, SC and surrounding areas

Approved

In business since 1982

Free estimates

Offers commercial services

"Everything about my experience was terrific, from Allison in the office to Todd in the field. After 2 years in my house & 2 different companies, Todd came in & immediately assessed, & delivered solutions, to the issues Iâ d been complaining about. Additionally, their prices are very reasonable, whichâ having limited fundsâ I deeply appreciated. I am so grateful I found the."
Response time10 hrs
1 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Quality Pro Services
Quality Pro Services
5.0(
26
)
Electric Furnace / Forced Air Heating System - InstallDuctless Mini-split A/C - Install or ReplaceGas Furnace / Forced Air Heating System - Install+7 more

Serving Mount Pleasant, SC and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Quality Pro Services Heating & Air is a locally owned, family-operated HVAC company proudly serving Charleston and surrounding communities. As Charleston natives, we?re committed to keeping our neighbors comfortable year-round with honest service and dependable workmanship. We provide residential heating and cooling repairs, system replacements, and routine maintenance to keep your system running at its best. Our team responds quickly, communicates clearly, and treats your home with care and respect. When you call QPS, you?re choosing a local team that truly cares about your family?s comfort.

QPS Business Photos
HVAC Maintenance
HVAC Maintenance
HVAC Maintenance
HVAC Maintenance

+1

5 neighbors recently requested a quote
Avatar for Preferred Home Services, LLC
Preferred Home Services, LLC
3.8(
51
)
Central A/C - InstallCentral A/C - Service or RepairElectric Furnace / Forced Air Heating System - Install+7 more

Serving Mount Pleasant, SC and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Preferred Home Services installed a brand new Split unit HVAC system including ductwork. They were fast efficient extremely professional and very knowledgeable. They explained everything they were doing before during and after they did it. Most importantly they cleaned up afterwards, to the point you couldn't even tell they were here. I also had them install a brand new water heater while they were at it. Everything is brand new and up to code I am very pleased. Thank you Angie's List for the referral. I will consider Preferred Home Services as my go-to from now on for my HVAC and water heater."
Generator
Generator & HVAC Maintenance
Encapsulation
Encapsulation
Shower

+9

275 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for FIX-IT 24/7 AIR CONDITIONING, PLUMBING AND HEATING LLC
FIX-IT 24/7 AIR CONDITIONING, PLUMBING AND HEATING LLC
5.0(
5
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair

Serving Mount Pleasant, SC and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

Fix-It 24/7 provides AC, heating, and plumbing services across the Charleston area. We focus on preventative care that extends the life of your home’s systems in a humid coastal climate. \n\nWe offer 24/7 availability with fast response times. Same-day service available, or your diagnostic is waived. \n\nWith more than 3,000 5-star reviews, homeowners trust us for reliable service. New customers can take advantage of our $39 AC deep clean.

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Heating and Air Conditioning FAQs, answered by experts

Yes, a dirty evaporator coil can freeze up. Dirty evaporator coils can’t absorb or transfer heat properly. The dirt and grime restrict airflow, which is needed to move heat throughout the system properly. Your air conditioning unit could freeze over, or it can cause your heat pump to freeze.

To extend your HVAC system’s lifespan, it’s crucial to keep up with maintenance. This includes changing filters and thermostat batteries, keeping the outside unit clean and clear of clutter, and lubricating moving parts. Watch out for leaks, mold buildup, and blockages to ensure your unit stays in good working order. Spotting these issues early can be the difference between a simple, wallet-friendly repair and an expensive replacement.

There are ways to detect a refrigerant leak with several different testing methods. However, most homeowners can figure out something’s wrong with their AC unit by noticing these common signs:

  • Ice forming on the evaporator coil

  • Water leaks near the AC unit

  • Frequent hissing sounds

  • Increased electric bills

  • Unit takes longer than usual to cool

  • Unit is blowing hot air

Evaporator coils in an HVAC system typically last between 10 and 15 years, which is roughly the same lifespan as the entire AC unit. The longevity of the coils can be affected by usage frequency, environmental conditions, and how well they are maintained. Regular maintenance, such as cleaning and inspections, can extend their durability. If the evaporator coil fails in an older air conditioner, it may be more cost-effective to replace the whole unit rather than just the coil.

The $5,000 rule for HVAC systems helps homeowners decide whether to repair or replace an AC or furnace. Take the quote for the HVAC repair cost and multiply that by the age of the HVAC system. If the total is higher than $5,000, it’s more cost-effective to replace the system. If the total is lower than $5,000, consider repairing the system.

The Mount Pleasant, SC 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.