HVAC Maintenance Plans

Heating & Cooling Maintenance Plans for Homes and Businesses

Your HVAC system works hard—without maintenance, it wears out fast. At High Tech Heating & Air, we offer comprehensive heating and air maintenance plans to help you save money on energy bills and avoid surprise HVAC breakdowns.

Whether you own a single-family home in Charleston or oversee multiple commercial buildings in Columbia or Manning, our HVAC maintenance plans are designed to extend your system’s lifespan even in South Carolina’s humid climate. Stay cool year-round by booking regular maintenance visits with our team and preventing problems before they start.

Residential HVAC Maintenance Plans

If you own a home in Charleston, Florence, or anywhere in the Lowcountry, a heating & cooling maintenance plan is one of the best ways to avoid high repair bills and stay comfortable all year. Every plan is built to keep your equipment clean, safe, and efficient.

Here’s what’s typically included in our residential HVAC preventative maintenance plans:

  • Complete inspection of both indoor and outdoor units. We check for signs of wear, rust, corrosion, or physical damage that could cause future system failures.

 

  • Air filter replacements. Dirty filters reduce airflow and strain your system. We can inspect and replace them periodically to avoid wasting energy and protect your home’s indoor air quality.

 

  • Thermostat calibration and function checks. To avoid malfunctions, we can check that your thermostat works correctly and reads your home’s indoor temperature accurately.

 

  • Refrigerant line inspections and level testing. Low refrigerant can cause weak cooling or damage to your compressor. Our technicians will check the levels and look for leaks or insulation issues.

 

  • Tightening and testing all electrical connections. Loose wires and worn terminals can cause short cycling, electrical failures, and fire hazards. Our team can inspect and secure all connections to eliminate these risks.

 

  • Cleaning of the evaporator coil, condenser coil, and condensate drain. These parts collect dust, mold, and grime over time. Regular cleaning ensures better airflow and prevents clogs that lead to water leaks or shutdowns.

 

  • Inspection and cleaning of the blower motor and fan assembly. We remove debris and buildup that can slow down the blower and reduce heating or cooling efficiency.

 

  • System performance check. After service, we run the system to make sure it starts, runs, and shuts down correctly with no unusual noise, odors, or performance issues.

 

We suggest biannual tune-ups, in spring and fall. This will keep your system ready for extreme temperatures and performing at its best.

 

Commercial HVAC Maintenance Plans

An unexpected HVAC failure for business owners means more than just discomfort—it can disrupt operations, affect customer satisfaction, or even shut down equipment. Our commercial HVAC maintenance plan options keep high-capacity systems running smoothly and avoid costly downtime.

 

We tailor each plan based on your building type, system configuration, and usage. A typical commercial maintenance visit includes:

  • Heavy-duty filter replacement. Commercial AC units often require more robust filters, especially in restaurants, medical facilities, and high-traffic offices. We inspect and replace them as needed to maintain indoor air quality.

 

  • Inspection and cleaning of ductwork. We check for leaks, blockages, and insulation damage throughout the duct system. Clean and sealed ducts help maintain consistent temperatures and reduce energy waste.

 

  • Full-service checkup of the cooling system. This includes inspecting and testing condenser coils, evaporator coils, compressors, and refrigerant metering systems. We verify refrigerant levels, detect leaks, and confirm safe operation under load.

 

  • Heating system tune-up. Whether using a heat pump, gas furnace, or rooftop unit, we check the heat exchanger, test safety controls, inspect burners, and ensure your heating works correctly and delivers heat consistently.

 

  • Electrical system inspection. We test voltage and amperage across variable refrigerant flow (VRF) systems, rooftop units, and other commercial-grade setups. This helps catch issues early before they affect larger parts of the AC network.

 

  • Airflow and balance testing. We inspect dampers and zone controls to ensure balanced airflow throughout the building, which is critical for large office spaces or facilities with multiple zones.

 

  • Drain and condensate system cleaning. Clogged or backed-up drains can cause water damage and system failure. We flush and test all drain components for proper flow.

 

Most commercial clients benefit from quarterly maintenance visits to keep their AC units in good condition and reduce the risk of a shutdown. Consider monthly visits if you run a restaurant, manufacturing site, or another high-demand environment.

Schedule a Maintenance Plan with High Tech Heating & Air Today

The High Tech Heating & Air team has offered its HVAC maintenance plans and dependable repair services to Charleston and the surrounding areas for over 30 years. Whether you need home AC repairs or a commercial system maintained, we make it simple to keep your air conditioning unit running properly.


Contact us now to receive a free quote. If you have a lower estimate from a competitor, let us know—we’ll beat it by $1,500.