Commercial HVAC in Columbia, SC

A too-hot office or a storefront that won't heat costs you customers and productivity. On Call's NATE-certified technicians repair, replace and maintain light-commercial heating and cooling equipment up to 20 tons — including rooftop units — across Columbia and the Midlands.

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For urgent help, call (803) 781-4357.

Light-commercial HVAC up to 20 tons

We service storefronts, offices, outbuildings and managed properties, including rooftop units and selected small chiller and cooling-tower work. Send us your equipment details and we'll confirm the fit. For portfolios, we set up maintenance around your specific units with seasonal visits and a written task list.

Commercial HVAC repair

Our technicians check the equipment, controls and air distribution to find the real cause of the problem — not just the symptom in one room. You'll get a firm price for the repair, sent to the person who approves work, before anything starts.

Replacement planned around your business

If a unit needs replacing, we size the new equipment for how your space is used today — not just the old spec sheet. We plan the timing, access, lifting and any other trades around your business hours to keep downtime to a minimum, and give you one clear quote for the whole job.

One call for your building

  1. We also handle commercial plumbing and gas lines, so one company can cover your building's mechanical needs.

  2. Family-owned since 2011, licensed in South Carolina (Mechanical License CLM.111515 MC), insured, BBB Accredited and rated 4.9 stars from 298 Google reviews.

A few common questions.

What commercial equipment do you service?

Light-commercial heating and cooling up to 20 tons, including rooftop units for storefronts, offices, outbuildings and managed properties. Send us your equipment list and we'll confirm we're the right fit. We don't offer commercial refrigeration.

Do you offer commercial HVAC maintenance agreements?

Yes. We build maintenance agreements around your equipment list, typically with spring and fall visits and a written task list for each unit. Ask our team to set one up for your property.

What are your commercial payment terms?

Commercial terms are available for established clients — talk to our team about the details. Certificates of insurance are available on request.

Will a new unit fix our comfort complaints?

Not always. Ductwork, controls and changes in how the space is used can cause comfort problems too. Our technicians find the real cause before recommending new equipment.

On Call branded plumbing, heating and air service van.

When you need us,
one call does it.

Locally owned and operated in Columbia and the Midlands.
Trained technicians, not trained salespeople.