Serving Leesville, Lexington, Columbia and the South Carolina Midlands
Licensed & Insured Emergency response: (803) 955-9500
Ron Johnson Heating & Air

HVAC Services in Lexington & Columbia SC

Heating and cooling repair, maintenance, new unit installation, duct review and comfort services for residential and commercial customers.

Residential & Commercial

Maintenance, repair and sales for heating and cooling systems.

Ron Johnson Heating & Air specializes in keeping homes and businesses comfortable year round. The work includes HVAC repair, maintenance, sales, new unit installation, indoor air quality, humidity control, duct systems and service for all makes and models.

The goal is not just to get air moving again. The goal is to find why a system is not heating, cooling or circulating properly, explain the issue clearly and recommend work that makes sense for the customer.

AC

Air Conditioning Repair

Diagnosis and repair for air conditioners that are blowing warm air, freezing up, short cycling, leaking water or failing to keep the building comfortable.

HEAT

Heating Repair

Heating service for heat pumps, furnaces and comfort systems that will not start, will not keep up or need seasonal inspection.

SET

System Sales & Installation

Replacement unit sales and installation with attention to proper sizing, ductwork, energy use and long-term comfort.

ESA

Energy Savings Agreements

Maintenance agreements include two complete services and inspections per year to help catch problems before the hottest and coldest days.

AIR

Indoor Air Quality

Indoor air quality, humidity control and airflow checks for rooms that feel muggy, stale, uneven or uncomfortable.

DUCT

Duct Systems

Duct inspections, return sizing review, trunk line checks and practical repair notes when ductwork is part of the comfort problem.

What the first visit can include

  • Inspection of the complete duct system, including under-house or attic areas when accessible.
  • Review of return sizing and trunk line sizing based on square footage and unit size.
  • Check of installation details, including whether R6 value is being maintained.
  • Check for standing water inside supply lines and trunk lines.
  • A written list of repairs needed for comfort, performance and system condition.

Authorized dealer brands

Ron Johnson Heating & Air works with proven HVAC equipment brands and services all makes and models.

Helpful Answers

HVAC questions customers ask before calling.

Ron Johnson Heating & Air provides air conditioning repair, heating repair, system tune-ups, new unit installation, duct system checks, indoor air quality help and maintenance agreements.

Yes. The company services all makes and models of heating and cooling equipment and can also recommend replacement options when a repair is no longer practical.

Yes. No work should begin until the customer understands the needed service and the expected charges.

Yes. A first visit can include a review of the duct system, return sizing, trunk line sizing, R-value concerns and standing water inside supply or trunk lines when accessible.