AC Repair & HVAC Services in Mount Pleasant, SC
AC not cooling? Heater stopped working? Strange noises, weak airflow, or a system that will not keep up? Mount Pleasant Heating & Air Conditioning provides HVAC repair, air conditioning service, heating service, maintenance, and installation for homes and businesses in Mount Pleasant and the surrounding area.
24/7 emergency service · same-day service when available
What’s Going Wrong?
Is Your HVAC System Giving You Trouble?
Most homeowners do not call an HVAC company because they want to think about HVAC. They call because something changed — and they need the problem handled.
AC Blowing Warm Air
The system is running, but your home still feels hot. We can diagnose why your air conditioner isn’t delivering the cooling you expect.
AC Won’t Turn On
When the thermostat calls for cooling or heating and nothing happens, the problem needs to be diagnosed before the right repair can be determined.
Weak Airflow
Air is coming from the vents, but it does not feel strong enough to cool or heat the room.
Uneven Temperatures
One room is comfortable while another stays too warm or too cold. Airflow, ductwork, controls, equipment and other issues can all play a role.
System Keeps Cycling
An HVAC system that starts and stops more often than normal may be signaling an operating problem.
Strange Noises
New buzzing, rattling, grinding, or other unusual sounds are worth having checked — especially when comfort has also changed.
Not sure what is wrong? Call (843) 714-0863
How We Can Help
HVAC Services for Mount Pleasant Homes & Businesses
From a sudden AC breakdown to a system that has gradually become unreliable, our services cover the equipment and problems that affect everyday comfort.
AC Repair
Air conditioner not cooling, running constantly, leaking, cycling, making unusual sounds, or refusing to start? We diagnose the problem and determine what needs attention.
AC Installation & Replacement
When repair no longer makes practical sense, we can help you evaluate replacement options and install a new cooling system.
Heating Repair
Heating problems can show up as weak heat, frequent cycling, unusual sounds, or a system that will not start when you need it.
Heat Pump Repair
Heat pumps handle both heating and cooling, so a problem can affect comfort in more than one season.
Ductless Mini-Split Service
Ductless systems provide targeted comfort in spaces where traditional ducted systems may not be the right fit.
HVAC Maintenance
Preventive service helps identify developing problems and keeps heating and cooling equipment operating as intended.
Also offering: Thermostat Service · Emergency AC Repair · Commercial HVAC Service
Why Choose Us
Why Mount Pleasant Homeowners Call Us
24/7 Help When You Need It
Heating and cooling problems do not wait for business hours. We provide 24/7 emergency HVAC service in Mount Pleasant.
Same-Day Service
When you call during the day and the schedule allows, same-day HVAC service is available for Mount Pleasant.
Straightforward Advice
We explain the practical options so you can decide whether repair, maintenance, or replacement makes sense for your system.
Trained & Screened Technicians
Our technicians are professionally trained and background checked before they work in your home.
In Your Home
What to Expect When Our Technician Arrives
Letting someone into your home to work on an expensive system takes trust. Here's how a typical visit goes:
- We start by asking what you've noticed: the sounds, smells, error codes and when the problem started.
- The technician checks the whole system, indoors and out, instead of guessing at a part.
- You get a plain-language explanation of what's wrong. When we can, we'll show you the failed part or the reading that points to it.
- You see the price and approve it before any repair begins.
- After the repair, we test the system and clean up the work area.
If a repair doesn't make sense for an older system, we'll tell you, and explain the options without pressure. Read what to expect from a repair visit.
Repair or Replace?
You Don’t Have to Replace Your AC Just Because Something Broke
When an HVAC system stops working, replacement is not automatically the answer.
Sometimes the right solution is a repair that gets the existing equipment back to work. In other cases, repeated problems, declining performance, or the condition of the system can make replacement worth considering.
We look at the problem, the equipment, and the practical options so you can make a decision based on the actual system — not pressure.
When repair may be the right call
- One-time problems such as a failed capacitor, contactor, or thermostat issue
- The system otherwise performs well and meets your comfort needs
- Repair history is limited and the equipment is in reasonable condition
- You want the current system restored and kept running
When replacement may be worth discussing
- Repeated breakdowns and repair bills are becoming common
- A major component such as the compressor or coil has failed
- Performance and reliability have declined noticeably over time
- The condition of the system suggests continued repair may not be practical
How It Works
Know What Happens After You Call
No guesswork — you understand the process before it starts.
Tell Us What Changed
Tell us what the system is doing — or not doing.
We Diagnose the Problem
We inspect the system and work toward identifying the actual cause.
Understand Your Options
We explain the practical repair or service options based on the condition of the equipment.
Get Your Comfort Back
Once you know what needs to happen, we move forward with the appropriate service.
Service Area
Local HVAC Service in Mount Pleasant & the Charleston Area
Mount Pleasant Heating & Air Conditioning is based at 1400 Midtown Ave Ste 401 in Mt. Pleasant, South Carolina. We provide HVAC service to Mount Pleasant and other communities within our service area.
Looking for service in a specific community? See our service areas, or call (843) 714-0863.
Lowcountry Weather
HVAC Built Around the Lowcountry Climate
Heating and cooling equipment here faces conditions that systems inland don't, and the way we diagnose, maintain and recommend equipment reflects that.
- Humidity: your AC removes gallons of water from the air on a summer day. Correct sizing and clear drain lines keep the house dry and comfortable.
- Salt air: homes near the harbor, creeks and beaches see faster corrosion on outdoor coils and wiring.
- Mild winters: heat pumps handle most of our heating, so they work hard year-round and benefit from two tune-ups a year.
- Storms: lightning, power surges and flooding can damage equipment. Have the system checked after a major storm.
- Pollen: spring pollen clogs filters and outdoor coils quickly.
Learn more in coastal corrosion repair and reducing indoor humidity.
AC Repair in Mount Pleasant
Need AC Repair in Mount Pleasant?
When an air conditioner stops cooling, starts cycling on and off, or just can't keep up anymore, a quick diagnosis can keep a small problem from becoming a big one. We repair central air conditioners, heat pumps and ductless systems of all major brands across Mount Pleasant and the Charleston area.
- AC not cooling? Check the thermostat, filter and breakers first. If the air is still warm, a capacitor, refrigerant leak or dirty coil is a common cause.
- AC running constantly? A system that never shuts off may be low on refrigerant, undersized, or fighting a clogged filter or dirty outdoor coil.
- Needing frequent repairs? We'll compare the cost of continued repairs with replacement, honestly and based on your equipment.
- Water around the indoor unit? Usually a clogged condensate drain. Turn the system off and call before it damages ceilings or floors.
See our AC repair service or call (843) 714-0863.
Helpful Guides
Answers Before You Call
A few practical articles from our team that homeowners find useful.
A Homeowner’s Guide to Seasonal HVAC Tune Ups
What a seasonal tune-up covers and why regular care can help keep a system running as intended.
Why Is My Upstairs Hotter?
Common reasons the second floor runs warmer and what can be done about it.
How to Troubleshoot Uneven Cooling
Steps to work through when some rooms stay warmer than others.
Homeowner Guide to Heat Pumps in Charleston
How heat pumps work in this climate and what to know about care and repair.
Season by Season
A Year of HVAC Care in Mount Pleasant
Your system’s needs change through the year. Here’s what to do in each season, and when to call.
- March to April: book the AC tune-up before the first hot stretch, while appointments are easy to get. Check the filter monthly while pollen is heavy.
- May to September: pick a setting and leave it, because big swings make the system run for hours to catch up. Water around the indoor unit usually means a clogged drain line, so call before it reaches the ceiling.
- June to November: hurricane season. If a storm is coming, turn the system off at the thermostat before the power goes out. If the outdoor unit sat in floodwater, have it checked before you turn it back on.
- October to November: test the heat before the first cold night. A dusty smell for a few minutes on the first run is normal. A burning or electrical smell that doesn’t fade is not.
- December to February: heat pumps run longer on cold mornings, which is normal. Ice that doesn’t clear within an hour, or a unit that runs nonstop on mild days, needs a look.
Two checkups a year, one in spring for cooling and one in fall for heating, catch most problems early. See our HVAC maintenance service.
Common Questions
Questions Mount Pleasant Homeowners Ask
Straight answers about our service, pricing, and what happens next.
Do you provide 24/7 HVAC service?
Yes. We answer emergency heating and cooling calls 24 hours a day, seven days a week. If your system fails at night or on a weekend, call (843) 714-0863 and we'll help you decide whether it needs an immediate visit.
Do you provide same-day HVAC service in Mount Pleasant?
Often, yes. When you call during the day and the schedule has room, we can usually send a technician the same day. We'll give you the earliest available time when you call.
Can you repair an older air conditioner?
Yes. An older system doesn't automatically need replacing. If one part has worn out and the rest of the equipment is in reasonable shape, a repair is often the sensible choice. We'll tell you honestly when the numbers point the other way.
Do you service different HVAC brands?
Yes. We service most major makes and models of air conditioners, heat pumps, furnaces and ductless mini-splits.
How do I know whether I need AC repair or replacement?
Look at the system's age, how often it has needed repairs, what this repair costs compared with replacement, and whether it still keeps the house comfortable. We'll walk you through those factors for your equipment, with no pressure either way.
Do you provide HVAC maintenance?
Yes. Seasonal tune-ups are one of our core services. Most Lowcountry homes with a heat pump benefit from one visit before summer and another before winter. Our HVAC maintenance page explains what's included.
Where is Mount Pleasant Heating & Air Conditioning located?
We are based at 1400 Midtown Ave Ste 401, Mt. Pleasant, SC 29464.
Which areas do you serve?
Mount Pleasant and nearby communities, including Charleston, West Ashley, James Island, Johns Island, Isle of Palms, Summerville and Awendaw. See our service areas page, or call (843) 714-0863 to confirm your address.
Your HVAC Problem Has a Next Step.
Whether the AC stopped cooling, the heat is not working, or your system has become unreliable, you do not have to guess what to do next.
Call (843) 714-0863 Request Service
Contact Us
Mount Pleasant Heating & Air Conditioning
Find Us
Based in Mount Pleasant, Serving the Lowcountry
- 1400 Midtown Ave Ste 401, Mt. Pleasant, SC 29464
- (843) 714-0863
- Mon–Sun · 24/7