Preventative HVAC Maintenance in Mount Pleasant

Reliable Heating & Air Conditioning System Tune-Ups

Ready to make the health and energy-efficiency of your HVAC system a priority?

Our team at Dunes Heating and Air Conditioning, LLC is ready to be your one-stop-shop for all things HVAC! Call us at (843) 480-2033 or reach out online to schedule your maintenance service today.

What Lowcountry Locals Have to Say

Mark Vanweezendonk
The team member (Damien) showed up exactly on schedule and fixed an error code that I had. He was also able to walk me through some steps to diagnose any issue that may come up in the future. As always, Dunes Heating and Air Conditioning, LLC are on top of things! Happy and satisfied customer here! Thank you, Mark.
Trip Jones
Dunes Heating and Air Conditioning, LLC Service technician, Logan, showed up on time and performed thorough inspection and service He was extremely polite and helpful. I would recommend Dunes Heating and Air Conditioning, LLC for anyone who needs AC replacement or service.
Adrienne Maysey
Damien was professional, fast and friendly. Dunes HVAC is the best in the business!!

What to Expect During Your Maintenance Service

Our licensed, bonded, and insured team at Dunes Heating and Air Conditioning, LLC works tirelessly to ensure you stay comfortable indoors all year long, so we use the best tools and processes on the market. Whether you need furnace, AC, or heat pump services, our team can help.

Furnace Tune-Ups Include:

  • Test for carbon monoxide leaks
  • Clean burner and ignition assembly
  • Clean blower motor
  • Inspect filtration system
  • Adjust blower components
  • Test and adjust safety controls
  • Tighten electrical connections
  • Check flue draft and combustion Inspect vent piping and humidification system

Air Conditioner Tune-Ups Include:

  • Clean condenser coil, condensate drain, and blower motor
  • Inspect evaporator coil if accessible
  • Inspect filtration system
  • Adjust blower components
  • Inspect for refrigerant leaks
  • Test condensate pump
  • Tighten electrical connections
  • Test starting capabilities
  • Measure air temperature differential
  • Monitor refrigerant pressure
  • Measure amperage and voltage

Air Handler Tune-Ups Include:

  • Inspect evaporator coil
  • Clean blower motor
  • Inspect filtration system
  • Adjust blower components
  • Test and adjust safety controls
  • Tighten electrical connections
  • Inspect humidification system
  • Inspect electrical heating elements

Heat Pump Tune-Ups include:

  • Clean condenser coil and condensate drain
  • Check defrost controls
  • Inspect auxiliary heaters and filtration system
  • Inspect for refrigerant leaks
  • Test condensate pump and starting capabilities
  • Tighten electrical connections
  • Measure air temperature differential, amperage, and voltage
  • Monitor refrigerant pressure

Preventive Maintenance FAQ

Preventive maintenance tasks involve routine inspections and tune-ups that help keep your heating and cooling system running efficiently and reliably.

Regular maintenance helps prevent unexpected breakdowns, improves system efficiency, and extends the lifespan of your HVAC equipment.

Most systems should be professionally serviced twice a year—once before the cooling season and once before the heating season.

Maintenance typically includes system inspections, cleaning critical components, checking refrigerant levels, testing performance, and replacing or inspecting filters.

A well-maintained system runs more efficiently, which can help reduce monthly energy costs.

Routine inspections help catch small issues early and avoid costly repairs or system failures.

Clean components and properly functioning filters help reduce dust, allergens, and airborne contaminants.

In many cases, yes. Manufacturer warranties often require regular professional maintenance to remain valid.

Most HVAC preventative maintenance visits take about one hour, depending on system size and condition.

Our preventive maintenance program helps improve comfort, reliability, and energy efficiency while protecting your HVAC investment. It also reduces the risk of unplanned downtime and costly reactive maintenance and repairs by addressing issues before they become problems.

Values We Stand Behind

Why Dunes Heating and Air Conditioning, LLC?

Trained and Certified Technicians
Trained and Certified Technicians
Licensed, Bonded, and Insured
Licensed, Bonded, and Insured
Financing & Specials Available
Financing & Specials Available
Available for Emergency Services
Available for Emergency Services
Honest and Upfront Pricing
Honest and Upfront Pricing
In Business Since 1998
In Business Since 1998
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