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Preferred Heat Repair & Replacement in North Myrtle Beach

Get A Free Second Opinion with MCC

Heating Contractor
in North Myrtle Beach

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(843) 894-3202
Experience expert Heat repairs and services from the preferred professionals in North Myrtle Beach. We keep your comfort our priority.
a reversal valve replacement on a heat pump in North Myrtle Beach

Why Heating in North Myrtle Beach is Different (And Why It Matters)

If you have lived in North Myrtle Beach for more than a few years, you know the truth: The ocean is hard on HVAC equipment.

While a standard heat pump might last 15-20 years in Columbia or Greenville, the coastal environment in North Myrtle Beach—specifically the combination of salt spray, high humidity, and wind-driven sand—creates a unique set of challenges. Most "heating contractors" treat these systems like standard installs. At MCCFixMyAC.com, we treat them like marine equipment.
(843) 698-2739
Galvanic corrosion in heater in north myrtle beach
Galvanic Corrosion in heater in North Myrtle Beach

The "Silent Killer": Galvanic Corrosion

It isn't just about rust on the outside of the unit. The real damage happens inside. Salt air accelerates galvanic corrosion between the copper tubing and aluminum fins of your heat pump.

This leads to two major heating failures common in the Grand Strand area:

1) Refrigerant Leaks: As the metal degrades, microscopic leaks form, causing your system to lose heating capacity and drive up your electric bill.

2) Stuck Reversing Valves: The reversing valve is the heart of your heat pump—it’s the part that physically switches your unit from "Cool" to "Heat." Salt accumulation often causes these solenoids to seize. Result: You turn on the heat, but the unit continues to blow cold air.
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The Montgomery's Coastal Cool Approach

Coastal-Specific Defense
We don't just repair the break; we address the environment.
 
  • Corrosion-Resistant Coatings: We utilize localized sprays on sensitive electrical connections during maintenance to repel salt moisture.
  • Hardware Upgrades: For oceanfront properties, we recommend stainless steel hardware and condenser mounts to prevent structural failure during storm season.
  • Drainage Management: Ensuring your defrost cycle drains properly so standing water doesn't accelerate rust at the base of the unit.

You don't just need a heating mechanic; you need a technician who understands the chemistry of the coast.

Precision Heating for North Myrtle Beach

In North Myrtle Beach, "heating" usually means one of two things: a high-efficiency Heat Pump fighting the humidity, or a Gas Furnace battling the salt air. Our technicians are trained and knowledgeable to service both, understanding that each system requires a distinct diagnostic approach.
High-Performance Heat Pumps (The NMB Standard)
For 85% of homes in the Grand Strand, the Heat Pump is the workhorse. It cools you in July and warms you in January. However, the mild but wet winters here create specific operational quirks that often look like failures to the untrained eye.

Common Coastal Heat Pump Issues We Resolve:
  • The "Defrost Cycle" Confusion: In our humid climate, frost naturally forms on your outdoor coil. Your system is designed to reverse itself to melt this ice, often producing steam.
    • The Expert Difference: If your unit is "steaming" for more than 15 minutes, or if the ice is thick enough to block airflow, the defrost board or sensors have failed. We diagnose the sensor logic, not just the symptom.
  • "Cold" Air in Aux Mode: When temperatures drop below 35°F, your system relies on "Auxiliary Heat" (electric strips). If you feel lukewarm air during a freeze, your strip sequencers may be corroded. We test amp draw on every strip to ensure full capacity.
  • Efficiency Calibration (HSPF2): We ensure your refrigerant charge is balanced to meet new HSPF2 (Heating Seasonal Performance Factor) standards, ensuring you aren't paying "Emergency Heat" prices for standard operation.
Gas Furnaces & Safety Protocols
While less common on the beach, gas furnaces (Natural Gas & LP) are found in many permanent residences and older neighborhoods in North Myrtle Beach. A gas furnace offers warmer, "toasty" air compared to a heat pump, but it demands rigorous safety oversight.

Our "Safety-First" Furnace Protocol: Because salt air is highly corrosive, it can attack the metal of your combustion chamber and vent piping faster than in inland areas.
  • Heat Exchanger Analysis: The most critical component. A crack in the heat exchanger can leak Carbon Monoxide (CO) into your living stream. We use combustion analyzers—not just visual checks—to detect invisible fractures.
  • Draft Inducer & Venting: We inspect flue pipes for salt-pitting and rust, ensuring dangerous exhaust gases are properly vented outside, not trapped in your attic.
  • Flame Sensor Cleaning: The salt atmosphere coats flame sensors quickly, causing the furnace to shut down (short-cycle). We clean and calibrate these on every visit.

Hybrid Dual-Fuel Systems

For the ultimate in coastal comfort, we specialize in Dual Fuel systems. This pairs an electric heat pump (for mild days) with a gas furnace (for freezing nights). It is the most efficient way to heat a home in Horry County, automatically switching to the cheapest fuel source based on outdoor temperature.
The Montgomery's Coastal Cool Difference
Our expertise and knowledge of North Myrtle Beach heating units is our highest standard
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The quality of your heating service is entirely dependent on the technician holding the wrench. In North Myrtle Beach, where salt corrosion creates unique diagnostic challenges, generic training isn't enough.

At Montgomery's Coastal Cool, every lead heating technician is an expert at heat, HVAC, and heat pump services. Each professional technician entering your North Myrtle Beach home has met the highest standard for technical HVAC knowledge.

Our trust within the community is built on transparency.  We believe trust begins before we knock on your door. When you book a service call with us,
you will receive a text or email before we arrive and when we are on our wayWe staff local experts with deep roots in the Grand Strand community, ensuring they understand the unique heating challenges of the area.
6661370644182700704

Why Trust Montgomery's Coastal Cool?

Verifiable trust is built on accountability and adherence to local laws. When dealing with new heating installations or major repairs, cutting corners on permits or warranties risks your home's insurance coverage and resale value.

Many contractors perform heating unit change-outs without securing a permit from the City of North Myrtle Beach Building Department or Horry County. This is illegal, dangerous, and can void your home insurance policy if a fire or safety issue occurs down the line.

We guarantee that we pull all necessary permits for new heating installations and large scale repairs. Also, we ensure the work passes the required Final Inspection by the NMB or Horry County inspector.

We operate under South Carolina Mechanical Contractor License C #115583, which is prominently displayed on all our vehicles and paperwork.


We back our work with the strongest guarantees in the area:
  • 10-Year Parts, 1-Year Labor: Standard industry protection on all new installations.
  • The "Fixed Right or It’s Free" Promise: If a repair fails within 30 days due to our error, we re-repair it for free. If we can't fix it, we refund your service fee.
  • Free Second Opinions: If you get an estimate from another company, whether its on a repair or replacement, we will come out and give it another look. You may be surprised what you can save!
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Quick Answers for North Myrtle Beach Homeowners

How often should I get heat pump maintenance in North Myrtle Beach?

Due to the accelerating effect of salt air on coils and electrical components, we recommend twice-annual maintenance—once for cooling in the spring, and once for heating (checking the reversing valve and heat strips) in the fall. Inland clients can often get away with once, but the coastal environment demands two checkups.

At what outdoor temperature should my heat pump switch to emergency heat?

In the North Myrtle Beach area, a well-calibrated heat pump should comfortably handle heating until outdoor temperatures consistently drop below $35^\circ\text{F}$ to $40^\circ\text{F}$. If your system defaults to auxiliary heat (which is much more expensive) above $40^\circ\text{F}$, your refrigerant charge is likely low, or your defrost cycle is malfunctioning.

Do you offer 24/7 emergency heating service in the NMB area?

Yes. We understand that a lack of heat during a cold snap in areas like Cherry Grove or Windy Hill is an emergency. We offer 24/7 emergency repair services throughout North Myrtle Beach and surrounding Horry County. Call us immediately at (843) 894-3202.

What is the typical service call fee for a heating diagnostic?

We operate on a transparent, flat-rate pricing model. We charge a fixed diagnostic fee to dispatch a NATE-certified technician to your NMB home. This fee is always waived if you proceed with the recommended repair. We discuss all repair costs upfront—no hourly surprises.

Are your technicians licensed and professional?

Yes, all of our HVAC technicians are fully licensed, trained, and background-checked. More importantly, they’re kind, respectful, and care about your home. Jeanette Harrison-Sullivan said it best: “Caleb was courteous, quick, professional and thorough. I feel ready for whatever winter brings.”