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Heat Pump Repair and Replacement in North Myrtle Beach

Certified and Licensed | SC Mechanical Contractor #M111694 | Right-sized, high-efficiency systems | Financing available | Serving the coast since 1947

Call 843-305-5728 to get a free estimate!

 Call for a free estimate
843-305-5728

What fails on North Myrtle Beach heat pumps
  • Short Answer: The heating-side parts, the reversing valve and the defrost control, wear on their own schedule because a cooling-only system does not have them. Salt exposure drives the rest, and it does not stop at the oceanfront row.

A reversing valve flips refrigerant flow so the machine heats instead of cools. A defrost board clears frost off the outdoor coil on damp mornings. Both sit idle through a long Grand Strand summer, then get asked to work in January, which is when the calls arrive together.

What is particular to this city is how far the salt travels inland. Cherry Grove is laced with tidal channels running back from the inlet, so a house several streets off the beach can still have brackish water at the end of the yard and salt in the air around the condenser. Homeowners who assumed they were far enough back are often the ones surprised by an eight-year-old unit that looks fifteen.

Our technicians test heating and cooling on every call rather than checking whichever mode the weather is asking for. It takes longer, and it is how a reversing valve going bad turns up in July rather than on the coldest night of the year. We would rather fix it right the first time than come back out in a cold snap.

North Myrtle Beach covers a lot of different housing in nine miles of coastline. A channel-front house in Cherry Grove, a golf villa off Barefoot, and a seventh-floor condo on Ocean Boulevard are three different heat pump jobs, and the one that surprises people most is the condo, because the answer to who decides and who pays may not be the owner. Repairs commonly run $200 to $700. A full replacement typically lands between $7,500 and $15,000 installed.

Those are market ranges, not a quote. Every home is measured and priced on its own.

Certified and Licensed | SC Mechanical Contractor #M111694  

a man in a white shirt with an american flag on his sleeve is working on a electrical outlet
Do you offer emergency and same-day AC repair in North Myrtle Beach?
  • Short Answer: Yes. When a beach house or rental loses cooling in the summer heat, we prioritize emergencies and work nights and weekends across North Myrtle Beach. In peak season it can take a little longer with demand all along the Strand, and we will give you an honest time window when you call. 

A hot rental during a summer turnover is lost income and an unhappy guest, and a hot home with kids or older family is no small thing. We move those to the front of the line. We will not promise a time we cannot hit in the middle of a July heat wave, but we will tell you straight where you stand, and that is part of how we treat folks right for the long term. A simple call starts it. Request service or call (843) 238-3838.

Certified and Licensed  | SC Mechanical Contractor #M111694

Permits: what you can pull yourself, and what you cannot
  • Short Answer: South Carolina law lets a property owner pull a building permit and do work on their own property. It does not extend to the mechanical trade. An HVAC permit has to be pulled by a licensed mechanical contractor even when the owner is handling the rest of the project.

That distinction catches capable people. Someone comfortable framing a room addition reasonably assumes the same logic applies to the equipment that conditions it. Under state law the owner-builder provision covers the building permit, and the electrical, plumbing, and mechanical subpermits still require a licensed contractor in that trade.

There is no exemption for doing the work yourself either. The permit applies regardless. Component repairs generally do not require one, a full changeout does, and North Myrtle Beach's floodplain and coastal-erosion overlay rules can add requirements on top of the state baseline depending on where the property sits.

Repair and replacement costs in North Myrtle Beach

  • Short Answer: Most heat pump repairs run $150 to $1,500 depending on the part. A replacement runs about $7,500 to $15,000 installed before any rebate, plus the permit.

These are 2026 market ranges for this region, not a Coastal Air Plus quote.

Equipment prices rose roughly 8 to 10 percent when the industry moved to the A2L refrigerants, and that is the market price now rather than a surcharge anyone should be adding to a bid. The defrost board and reversing valve rows never appear on an air conditioner estimate, because a cooling-only system does not have those parts. Santee Cooper pays a heat pump rebate to its own customers on qualifying equipment, and it is paid only when a Santee Cooper Trade Ally does the install, so the provider and the installer both have to line up before that money is real. The federal Section 25C credit ended for installations after December 31, 2025, and the state's HEAR and HOMES programs are funded but have not opened. Where timing is the obstacle rather than the decision, we offer financing options.

Typical Heat Pump Repair Costs

Diagnostic Service Call $95 to $169
Capacitor or contactor Repair $150 to $450
Defrost control board $200 to $500
Reversing valve $400 to $700
Fan or blower motor repair $450 to $1,200
Refrigerant leak repair and recharge $450 to $1,500
Evaporator coil or compressor repair $1,000 to $4,500
Full system replacement, installed $7,500 to $15,000
Call 843-305-5728

Why Choose Coastal Air Plus?

  • Serving South Carolina Since 1947 – Trusted by homeowners throughout  Myrtle Beach and Charleston.
  • Certified & Licensed Technicians – SC Mechanical Contractor #M111694.
  • Flexible Financing Options – Convenient plans available for new HVAC Installations.
  • Home Service Membership Plans – Regular maintenance to keep your system running smoothly.
  • Highly Rated by Customers – Committed to quality service and customer satisfaction.

Condos: who decides, and who pays

  • Short Answer: In a condo the equipment serving your unit may belong to you, to the association, or to some split of the two, and the governing documents decide which. Some oceanfront buildings here fold the air conditioning equipment into the regular assessment along with the utilities and the insurance.

This catches owners out more than any other question we get on this stretch. A homeowner in a house calls us, approves a repair, and it is done. A condo owner may need association approval before anything is touched, may find the association already covers the equipment, or may discover the association covers the equipment but not the ductwork, or the reverse. None of that is unusual and all of it is written down somewhere.

So the first thing to do is read the declaration and the bylaws, or ask the management company for the paragraph that covers HVAC. Creating Lasting Relationships has been this company's line since 1947, and with condo owners a fair share of it is refusing to start work that somebody else was going to pay for anyway.

Once that question is settled the rest of the job runs like any other. What we ask is that it gets settled before a technician is standing in your hallway, because that is an expensive place to be reading a declaration.

Under about 8 to 10 years old Past 10 to 15 years old
A one-time electrical part (capacitor, contactor) Compressor failed and is out of warranty
Repair is well under a third of a new system Repair tops about half of a new system
System has been maintained Several service calls in the last couple of years
Uses current refrigerant Still runs obsolete R-22
Schedule Repair

Frequently Asked Heat Pump Repair Questions

Does golf course irrigation overspray damage an outdoor unit?

  • It can, and it is worth knowing which side of a fairway you are on. Reclaimed and brackish water are common golf irrigation sources, and South Carolina has long-standing experience with water reuse on courses. Both carry dissolved salts and minerals. Overspray that lands repeatedly on a condenser leaves those salts behind as the water evaporates, and the result looks a lot like coastal corrosion even on a unit well back from the ocean. If your outdoor unit sits within reach of a sprinkler head, moving the head is cheaper than replacing the coil.

How do I tell whether my condo has its own system or shares a building loop?

  • Look for an outdoor unit that belongs to you. If there is a condenser on a pad, a balcony, or a roof that serves your unit alone, you have a standalone system. If instead there is a cabinet in a closet with water piping running into it and no outdoor unit anywhere, your building likely uses a shared water loop with a heat pump in each unit. The two are serviced differently, priced differently, and in the second case the building's loop is the association's responsibility even when the box in your closet is yours.

Why does my upper-floor unit run warmer than the one below it?

  • Heat rises through a building, the top floor takes roof load that lower floors do not, and upper units usually have more glass facing the water. All three push the same direction. Before anyone talks about replacing equipment, it is worth checking whether the unit was sized for its actual position in the stack, since builders frequently specify the same tonnage for every unit of the same floor plan regardless of what floor it sits on.

Can you service equipment on a roof or an upper-floor balcony?

  • Yes, with the access arranged in advance. Roof and balcony equipment means coordinating with the management company for roof access, elevator use, and permitted work hours, and it means bringing a replacement up rather than rolling it across a yard. That is scheduling rather than difficulty, and it is why we ask about the location when you call instead of finding out on arrival. Where a balcony unit is failing a single room, a ductless mini split is often the practical answer.

Is there a better time of year to replace a system here?

  • Spring and fall, if the choice is yours. Replacing in the shoulder seasons means shorter lead times on equipment, more scheduling flexibility, and a system commissioned in mild weather rather than under load. It also lets us take the time to get the airflow right, which is harder to justify when a house is at ninety degrees and somebody needs cooling today. If the system dies in July we will still be there, and a VIP Maintenance Club plan is how most people avoid finding out in July that they needed to decide in April.

Where we work in North Myrtle Beach

The city was formed in 1968 when Cherry Grove, Ocean Drive, Crescent Beach, and Windy Hill came together, and those four still feel like four places. We work all of them, plus the golf communities inland toward Barefoot. What we recommend shifts across that span, because a channel-front cottage and an upper-floor oceanfront condo are not carrying the same equipment or the same access. Not better - just different is how we usually put it, and here the difference is often whether there is an outdoor unit at all.

North Myrtle Beach sits in Horry County, and the full range of what we handle here is on our North Myrtle Beach service page. For how heat pumps work and what the efficiency ratings mean, start with our heat pump repair and replacement guide. Coastal equipment earns two visits a year, which is what our maintenance and tune-up service is built around. We would rather treat them right for the long term than meet an owner for the first time in a heat wave.