Heat Pump Repair and Replacement in Conway
Certified and Licensed | SC Mechanical Contractor #M111694 | Right-sized, high-efficiency systems | Financing available | Serving the coast since 1947
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- Short Answer: The reversing valve and the defrost control go first, because they only run in heating mode and a cooling-only system does not have them. After that it is humidity and equipment age rather than salt, which reaches here in much smaller amounts than it does at the beach.
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 summer, then get asked to work in January, which is when the calls arrive together.
What is different fifteen miles inland is that the outdoor unit is not being eaten by salt, so equipment here often reaches the far end of its useful life rather than the near end. That sounds like good news and it has a catch: a system that keeps running is a system nobody thinks about, and the failures we see in Conway are more often neglect than exposure. Drain lines that have not been cleared in years, filters that have gone from dirty to structural, capacitors that were weak for two summers before anyone noticed.
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.
Conway sits about fifteen miles inland on the Waccamaw, which changes the heat pump conversation in one specific way. Everywhere else on this coast, water arrives with the storm. Here it arrives afterward, sometimes days afterward, as the river comes up. That is a genuinely different problem, and it is one of the few flood situations where a homeowner has time to do something useful. 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.
Call 843-305-5728
Certified and Licensed | SC Mechanical Contractor #M111694

- Short Answer: Yes. When your AC goes out in the summer heat, we prioritize emergencies and work nights and weekends across Conway. During peak season it can take a little longer, and we will be straight with you about timing when you call.
A hot house with kids, older family members, or pets is not something we ask you to sit on. We move emergencies to the front of the line and give you an honest window rather than a promise we cannot keep. A simple call starts it. Request service or call (843) 238-3838.
A few things to check before you call
- Set the thermostat to cool and check the batteries.
- Make sure the AC breaker has not tripped.
- Check the air filter. A clogged filter is a common, easy fix you can do yourself.
If those look fine and you are still warm, that is when to call us.
Certified and Licensed | SC Mechanical Contractor #M111694
- Short Answer: Conway's flooding is riverine rather than coastal, so it follows a storm by days instead of arriving with it. After Hurricane Florence the river crossed flood stage two days after landfall, crested about twelve days later at a record level, and stayed above flood stage for roughly a month.
Flood stage on the Waccamaw at Conway is eleven feet. In 2018 the river reached just over twenty-one feet, beating the record set two years earlier after Matthew by more than three feet, and it put water in close to a thousand homes and businesses in and around a city of twenty-three thousand. The reason it takes so long is geography: the coastal plain flattens out here, so upstream rain drains slowly rather than running straight to the sea.
The practical consequence is unusual and worth saying plainly. In most flood situations the equipment is under water before anyone can react. In Conway the forecast is specific enough that firefighters went door to door before Florence's water arrived and told people which houses would take it, and they were right. That is time you can use. The city itself learned the same lesson and redesigned the electrical service boxes in Riverfront Park after Florence so they can be lifted out ahead of the water.
So the useful questions here are the ones you can answer on a dry day. Where does the outdoor unit sit relative to the last crest, what would you want done before a forecast turns into water, and who would you call to do it. Creating Lasting Relationships has been this company's line since 1947, and in Conway a fair share of it is having that conversation in March instead of September.
- Short Answer: Rental housing is a real part of this market, with Coastal Carolina University in town, and rental systems fail differently than owner-occupied ones. Nobody reports a small problem, so the first call is usually a large one.
An owner living in the house notices the airflow dropping off, the odd noise, the room that stopped keeping up. A tenant on a twelve-month lease frequently does not, or does not think it is theirs to report. By the time we get called the filter is choked, the coil is dirty, and what would have been a maintenance visit has become a repair.
For landlords the answer is scheduled service rather than reactive service, and a written instruction to tenants about what to report. Turnover season is the natural window for it, since the house is empty and the work does not have to fit around anyone. We would rather treat them right for the long term than bill an emergency call every August.
Repair and replacement costs in Conway
- 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 on the work.
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. Horry County addresses are split between Santee Cooper and Horry Electric Cooperative, and the rebate you can claim follows whoever bills you, so we check the provider for the specific address rather than assuming. 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
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.
Heat pump replacement in Conway
- Short Answer: If your home sits in the Old and Historic District, the Old City District, a Landmark Overlay Zone, or a Historic Corridor District, your mechanical permit routes through the Board of Architectural Review, and a like-for-like changeout is not exempt. What it usually does not need is a full board hearing. The city's weekly staff approval logs show heat pump installs and HVAC changeouts cleared at staff level under a Quick Plan Review.
The city's BAR guidelines are specific about mechanical equipment. Visibility from the public right-of-way should be minimized. Equipment should sit toward the rear of the property wherever possible. Meters and conduit are not to go on a front facade. Mechanical stands should not run higher than code requires. Screening follows the board's own guidelines rather than whatever looks tidy.
In practice that means the paperwork starts before the install date, not after. Staff review moves faster than a board hearing, and a straight changeout that leaves the equipment where it already sits is the kind of item that clears at staff level. Change the location, raise the profile, or put the unit somewhere it can be seen from the street, and the same job can go to the full board and add weeks. We would rather say that up front, because the goal is to fix it right the first time and a placement rushed to hit an install date is the kind that gets sent back.
Frequently Asked Heat Pump Repair Questions
Can an outdoor unit be raised after it has already been installed?
- Yes, and it is a far smaller job than people assume. Raising a condenser onto a taller stand or a poured pad typically means disconnecting and re-supporting the refrigerant lines and the electrical whip, setting the new base, and re-securing the unit. It is not a replacement and it does not require new equipment. If your unit sits at grade in a spot the river has reached before, that is a conversation worth having on a dry afternoon rather than during a forecast.
Is there a disconnect I can shut off myself before water reaches the unit?
- There should be. A code-compliant installation has a disconnect box within sight of the outdoor unit, usually mounted on the wall beside it, with a pull-out block or a switch. Killing power there before water arrives is meaningfully better than letting a submerged unit sit energized. Know where yours is and confirm it actually opens the circuit before you need it. If you cannot find one, that itself is worth a service call.
Do you work on manufactured and mobile homes?
- Yes, and it is worth knowing they are not the same job. Manufactured homes are built to a federal standard rather than to the local residential code, and equipment installed in them has to be listed for that use, with different duct connections, different clearances, and often a downflow or through-the-wall configuration you will not find in a site-built house. A contractor who treats one like the other creates problems that show up at inspection or at resale.
Will a new heat pump work with the ductwork in an older downtown house?
- Frequently yes, sometimes only after repairs, and occasionally not without rework. Duct systems in older Conway houses were often added after the fact, run through unconditioned space, and sized for equipment two generations back. We measure static pressure and look at the return path before quoting, because putting a better system on a duct system that cannot move the air just relocates the complaint. Where a room addition or a converted porch is the real problem, a ductless mini split solves it without rebuilding everything.
Do you charge extra for evening or weekend calls?
- We will tell you before we come out, not after we are there. Rates outside normal business hours are a real thing in this trade and we would rather you hear the number on the phone than see it on an invoice. If the situation can reasonably wait until morning we will say so instead of selling you an after-hours visit. Members on a VIP Maintenance Club plan get priority scheduling, which is usually the better answer than paying premium rates twice a summer.
Where we work in Conway
We cover the historic downtown grid and the riverfront blocks, the neighborhoods out along Church Street and Highway 501, and the rural stretches of the county past the city limits. What we recommend shifts across that span, because a 1930s house two streets from the river and a subdivision built last decade are not carrying the same equipment, the same ductwork, or the same flood exposure. Not better - just different is how we usually put it, and in Conway the difference is frequently measured in feet above the water.
Conway is the seat of Horry County, and the full range of what we handle here is on our Conway service page. For how heat pumps work and what the efficiency ratings mean, start with our heat pump repair and replacement guide. A system that heats and cools all year earns two visits a year, which is what our maintenance and tune-up service is built around.



