Most homeowners want one number before they call about replacing an air conditioner: what is this going to cost. We understand why. A new system is a real expense, and nobody wants a vague answer or a hard sell. So here is a straight look at what AC replacement costs in North Myrtle Beach, what changes that price, and how we land on a figure you can trust.
One thing up front. We cannot quote your exact system from a blog post, and we will not pretend the price comes down to square footage alone. The quick answer below is a fair starting point. The real number depends on your home, your ductwork, and the kind of equipment a coastal system needs. That is what a load calculation is for, and it is where we start every replacement.
Quick answer
What does AC replacement cost on the Grand Strand?
In North Myrtle Beach, a new central air conditioner usually runs about $5,000 to $11,000 installed, and a heat pump about $5,500 to $12,000, based on 2026 national cost guides. The exact price comes from a load calculation on your home, not its square footage, and we put every quote in writing after measuring.
Key things to know about AC replacement cost
If you read nothing else, these five points cover what actually drives the price of a new system on the Grand Strand.
- Size is set by math, not a rule of thumb. A load calculation measures how much cooling your home needs. An oversized system costs more and controls humidity worse.
- The coast adds cost for a reason. Salt air corrodes outdoor equipment faster here, so corrosion-resistant parts and good drainage are worth paying for.
- Efficiency is a trade. A higher-efficiency system costs more up front and uses less energy every month you run it.
- 2026 equipment uses new refrigerant. Systems now ship with A2L refrigerant instead of the older R-410A, which the federal phasedown is retiring.
- Insurance rarely pays for normal wear. Homeowners coverage usually steps in only for sudden, covered damage, not for a system that wore out.
What a new AC system costs in North Myrtle Beach
In North Myrtle Beach, a new central air conditioner typically costs about 5,000 to 11,000 dollars installed, and a heat pump about 5,500 to 12,000 dollars, according to the Angi and Forbes Home cost guides for 2026. Coastal homes often land toward the upper end of those ranges, because the equipment that stands up to salt air costs a little more.
Think of those numbers as the field, not the final score. The same three-ton system can be priced very differently depending on the ductwork it connects to and the equipment grade the coast calls for. The card below shows the two most common replacements side by side.
What it costs
A new coastal system, side by side.
Central AC
Air Conditioner, Installed
$5,000 to $11,000
Coastal homes can land toward the upper end.
Heat pump
Heat Pump, Installed
$5,500 to $12,000
One system covers cooling and winter heating.
Ranges per the Angi and Forbes Home cost guides for 2026. Comfort Masters quotes every installation in writing after measuring the home.
Cost by system type
Most replacements on the Grand Strand fall into three system types. The right one depends on your home, your existing equipment, and what a load calculation shows.
Central split system
A split system pairs an outdoor condenser with an indoor air handler and coil. It cools only, so it pairs with separate heating. When the existing ductwork is in good shape, a split system is often the most direct replacement, which keeps it near the lower part of the central-AC range above.
Heat pump
A heat pump looks like a split system but moves heat both ways, so one unit cools in summer and heats in winter. It is the most common choice on the coast, because Grand Strand winters get genuinely cold even though they are short. A heat pump usually costs a little more than a cooling-only system and removes the need for a separate furnace.
Package unit
A package unit puts all the components in one cabinet, usually on a slab or a flat roof. It is common on beach homes and slab-foundation houses that have no attic or crawl space for an indoor unit. Pricing tracks the ranges above, with placement and tie-in determining where it lands.
Cost by efficiency and size
Two technical choices shape the final number more than almost anything else. Both are worth understanding before you compare quotes.
Efficiency rating (SEER2)
SEER2 measures how efficiently a system cools. New split-system air conditioners must meet at least 14.3 SEER2 in the Southeast region, set by the U.S. Department of Energy, and you can buy higher. A higher SEER2 costs more up front and lowers what you spend on power across a long coastal cooling season.
System size (tonnage)
Size is measured in tons of cooling, and it should come from a load calculation, not from the size of your old unit or your home's square footage. An oversized system short-cycles. It cools the air fast, shuts off, and leaves humidity behind, so the house feels clammy even at the right temperature. A right-sized system runs longer, steadier cycles that control both heat and moisture.
What moves the price on the coast
Three things drive most of the gap between a low quote and a high one: the system size your home actually needs, the condition of your ductwork, and the equipment grade a salt-air environment calls for. The refrigerant change now built into 2026 equipment matters too. Here is how each one works.
Why the coast is hard on equipment
How salt air wears a system down.
Salt in the air
Airborne salt drifts inland and settles on the outdoor unit year-round.
Coil corrodes
Salt eats at the coil fins and cabinet faster than inland air ever would.
Heat-shedding drops
A corroded coil cannot release heat well, so the system runs longer and harder.
Shorter lifespan
Constant strain wears the unit out years before its 15-year average.
The fix is straightforward: coastal-rated equipment with coated coils slows corrosion, and rinsing the outdoor coil with fresh water on a schedule clears the salt before it sets.
System size and ductwork
Size comes from a Manual J load calculation, the industry-standard method from the Air Conditioning Contractors of America for measuring how much heating and cooling a home needs. Ductwork is the other half. Leaky or undersized ducts waste the capacity you paid for, so a replacement sometimes includes duct repair or a Manual D redesign. Our work in the coastal Carolina HVAC guide goes deeper on why sizing matters here.
The 2026 refrigerant change
Newer systems use A2L refrigerants such as R-454B or R-32 instead of the older R-410A, which the U.S. Environmental Protection Agency is phasing down under the AIM Act. For a 2026 replacement, that mostly means you are buying current equipment built for the new standard, and it is one more reason a like-for-like swap of a very old system is rarely as simple as it sounds.
Equipment grade, access, and permits
Corrosion-resistant equipment costs more and lasts longer near the beach. Beyond the unit itself, how easy the install is to reach, and the local permit and code requirements in Horry County and Brunswick County, both factor into the final price. None of these are upsells. They are the difference between a system that holds up and one that does not.
Insurance and financing for a new system
Does homeowners insurance cover AC replacement?
Usually not when the system simply wore out. Homeowners insurance is built for sudden, accidental damage from a covered peril, such as a lightning strike or a fire, not for age and normal wear, according to the Insurance Information Institute. If a storm or surge damages your unit, it is worth filing a claim and letting the adjuster decide. If the system is just old and failing, plan on the replacement as a home expense, and let a technician confirm what you are dealing with before you assume either way.
Financing options
A new system does not have to be paid all at once. Comfort Masters offers financing through Synchrony, and you can review the current terms on our HVAC financing options page. High-efficiency systems and qualifying heat pumps may also be eligible for a federal energy-efficiency tax credit, so it is worth checking the current ENERGY STAR and IRS guidance for the year you install.
In-house savings: maintenance plans
Once the new system is in, a maintenance plan protects it. Our one-visit agreement is 115 dollars a year and covers an annual inspection, a cleaning, and priority scheduling. The two-visit plan is 175 dollars a year, adds a spring coil clean and a fall service, and includes a 10 percent discount on repairs. You can compare both on our HVAC maintenance plans page.
What is included when we replace your AC
A replacement quote from Comfort Masters covers the work, not just the box. Here is what that looks like from first visit to finished install.
Before the install: measure and design
We run the load calculation, select equipment to match it, and design the ducts where needed, using the ACCA Manual J, S, and D standards. You get the findings in writing, with photos, so the quote explains itself. That is the documentation behind our approach: engineered, not estimated.
The installation
We remove the old system, set and commission the new one, and pull the permits the job requires. Every new installation carries a three-year labor warranty. If you are weighing a full system swap, our new AC installation in North Myrtle Beach page walks through the process in more detail.
Should you repair or replace?
Replacement is not always the answer, and we will tell you when it is not. We diagnose before we recommend, and our technicians do not work on commission, so the goal is the right call for your home rather than the biggest invoice.
When a repair is the right call
If the system is under about ten years old, the failure is a single component, and the rest of the unit is sound, a repair usually makes more sense than a replacement. A clear written diagnosis is the way to know.
When replacement makes sense
Age, repeat breakdowns, rising power bills, and a refrigerant that is being phased out all point toward replacing rather than repairing again. Our guide on when to repair or replace your AC lays out the signs. Either way, the right next step is a professional evaluation, not a guess. If your home loses cooling during a heat wave and anyone shows signs of heat illness, call 911 first, then call us.
Common questions
AC replacement cost, answered.
How much does AC replacement cost in North Myrtle Beach?
A new central air conditioner usually runs about 5,000 to 11,000 dollars installed, and a heat pump about 5,500 to 12,000 dollars, according to the 2026 Angi and Forbes Home cost guides. Coastal homes often land toward the upper end, and the exact price comes from a load calculation on your home.
Why won't you quote a price over the phone?
Because a real price needs measurements. Two homes the same size can need different systems depending on insulation, ductwork, and sun exposure. We run a load calculation, check your ductwork, and put the quote in writing. A number guessed over the phone tends to be wrong, and it helps no one.
How is AC replacement cost calculated if not by square footage?
We use a Manual J load calculation, the ACCA standard that measures how much cooling and heating your home actually needs. It accounts for insulation, windows, orientation, and air leakage. Square footage is only a rough proxy, which is why two similar-sized homes can need different equipment.
How much does a new heat pump cost compared with a central AC?
A heat pump usually runs about 5,500 to 12,000 dollars installed, a little above a cooling-only central air conditioner at 5,000 to 11,000 dollars, per the 2026 Angi and Forbes Home guides. The heat pump handles winter heating too, so it can replace a separate furnace.
What does a package unit cost for a beach home?
A package unit falls within the same installed ranges as a split system, roughly 5,000 to 12,000 dollars depending on type, per 2026 national guides. It puts every component in one cabinet on a slab or roof, which suits beach and slab-foundation homes that have no attic or crawl space.
Does a higher SEER2 rating cost more?
Yes. A higher SEER2 system costs more up front and uses less energy each month. New split-system air conditioners in the Southeast must meet at least 14.3 SEER2, set by the U.S. Department of Energy, and you can buy higher for more savings over a long coastal cooling season.
How does the 2026 refrigerant change affect replacement cost?
New systems now use A2L refrigerants like R-454B or R-32 instead of R-410A, which the EPA is phasing down under the AIM Act. For a 2026 replacement it mainly means you are buying current equipment. It is also a reason swapping a very old system is rarely a simple like-for-like job.
Does homeowners insurance cover AC replacement?
Usually not for normal wear. Homeowners insurance covers sudden, accidental damage from a covered peril such as lightning or fire, not age, according to the Insurance Information Institute. If a storm damages your unit, file a claim. If it just wore out, plan on the replacement as a home expense.
Do you offer financing for a new system?
Yes. Comfort Masters offers financing through Synchrony, and you can review the current terms on our financing page. We do not publish rates here, because the terms come from the lender. Qualifying high-efficiency systems may also be eligible for a federal energy-efficiency tax credit.
Is there a federal tax credit for a high-efficiency system?
There can be. High-efficiency systems and qualifying heat pumps may be eligible for a federal energy-efficiency tax credit. Amounts and eligibility change, so check the current ENERGY STAR and IRS guidance for the year you install, and keep your equipment documentation for filing.
How long does a new AC system last on the coast?
A properly sized, maintained system lasts about 15 years on average, according to ENERGY STAR. Salt air and heavy summer runtime can shorten that, so corrosion-resistant equipment and regular maintenance matter more here than inland. Timing a replacement before a failure usually costs less than an emergency one.
What is the service-call fee, and does it apply to estimates?
A diagnostic service call is 55 dollars in Little River and Calabash, and 95 dollars elsewhere on the Grand Strand, and it covers a full diagnosis with written findings. That fee is for diagnosing a problem on an existing system. For a planned replacement, call us and we will walk you through how a quote works.
Does a maintenance plan lower long-term cost?
It can. Our one-visit plan is 115 dollars a year and the two-visit plan is 175 dollars a year, which adds a spring and fall service plus a 10 percent discount on repairs. Regular maintenance helps a coastal system reach its full lifespan, which protects the money you put into it.
How long does an AC replacement take to install?
Most residential replacements are completed in one day once the equipment is on site. A job that also needs ductwork repair or redesign can take longer. We confirm the timeline in the written quote, so you know what to expect before the work begins.
Sources and references
- Angi, How Much Does AC Replacement Cost (2026). angi.com
- Forbes Home, HVAC Replacement Cost Guide. forbes.com
- ENERGY STAR, Heating and Cooling Equipment and System Lifespan. energystar.gov
- U.S. Department of Energy, Central Air Conditioning and Efficiency Standards. energy.gov
- U.S. Environmental Protection Agency, Phasedown of Hydrofluorocarbons Under the AIM Act. epa.gov
- Insurance Information Institute, Does Homeowners Insurance Cover an Air Conditioner. iii.org
- Air Conditioning Contractors of America, Manual J Residential Load Calculation. acca.org
Service area
HVAC across the Grand Strand.
Comfort Masters Heating & Cooling provides coastal HVAC service across North Myrtle Beach and the Grand Strand from 3502 Highway 50 in Little River, SC 29566.
Areas we serve
- North Myrtle Beach
- Little River
- Calabash
- Cherry Grove
- Longs
- Loris
- Myrtle Beach
- Sunset Beach
- Ocean Isle Beach
