Professional HVAC Services in Irmo, SC 29063 - Cassell Controls Heating & AC

Irmo, SC 29063

(803) 345-8385

Services Offered

  • HVAC installation or replacement
  • HVAC system repair

About the Company

Cassell Controls Heating & AC is a trusted HVAC company serving Irmo, SC homeowners with reliable heating and air conditioning solutions. We specialize in addressing common local HVAC challenges like high humidity that reduces system efficiency and dirty evaporator coils that strain performance. Our team provides expert diagnostics, thorough cleaning, and precise repairs to restore optimal airflow and dehumidification. By focusing on preventative maintenance and efficient repairs, we help Irmo residents maintain comfortable indoor environments while lowering energy costs. We're committed to fast response times and clear communication, ensuring your HVAC system runs smoothly year-round in our South Carolina climate.

Common Questions

How can I tell if high humidity is making my Irmo HVAC system less efficient?

Common signs include your AC running constantly without cooling properly, sticky indoor air, condensation on windows, or musty odors. High humidity forces your system to work harder, reducing efficiency. We recommend scheduling a professional inspection to check humidity levels and assess coil and drainage system performance.

What causes dirty evaporator coils in Irmo homes, and how often should they be cleaned?

Dust, pollen, and indoor pollutants accumulate on coils over time, especially during high-usage seasons. In Irmo's climate, we advise annual cleaning before summer to maintain efficiency. Dirty coils restrict airflow, reduce cooling capacity, and increase energy bills. Our technicians perform safe, thorough cleaning to restore optimal performance.

Can regular maintenance prevent common HVAC problems in Irmo?

Yes, preventative maintenance is key. Our local service includes checking refrigerant levels, cleaning coils, inspecting drainage, and calibrating thermostats. This helps catch issues early, improves humidity control, and extends system lifespan. We recommend biannual tune-ups—spring for AC and fall for heating—to keep your system running efficiently year-round.

Business Location & Hours



Mon:Open 24 hours
Tue:Open 24 hours
Wed:Open 24 hours
Thu:Open 24 hours
Fri:Open 24 hours
Sat:Open 24 hours
Sun:Open 24 hours


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