Thomason's Heating & Air: What to Know Before You Call

Thomason's Heating & Air is a local HVAC contractor serving the Midlands

Thomason's Heating & Air is a heating, ventilation, and air conditioning company based in South Carolina that handles residential and commercial climate control work. They install, repair, and maintain furnaces, air conditioners, heat pumps, and related systems. If you're coming from plumbing resources, you should know that HVAC is a separate trade—while both involve home systems and sometimes overlap during major renovations, they require different licensing and expertise.

The company operates in the Midlands region, which includes Columbia and surrounding areas. Like most HVAC contractors, they charge for service calls, repairs, and installation work. Rates and availability vary by season and job complexity.

Key Takeaways

• Thomason's Heating & Air handles furnace, air conditioning, and heat pump work for homes and businesses in the Midlands.
• HVAC work is distinct from plumbing and requires separate contractor licensing and training.
• Service calls, repairs, and installations all carry separate costs that depend on the specific job.
• Seasonal demand for heating and cooling work affects how quickly contractors can schedule appointments.

When to contact an HVAC contractor

Call an HVAC contractor when your heating or cooling system stops working, runs inefficiently, makes unusual noises, or needs routine maintenance. Common reasons include a furnace that won't ignite in winter, an air conditioner that blows warm air, a system that cycles on and off too frequently, or a refrigerant leak.

Preventive maintenance—typically a yearly inspection before heating season and another before cooling season—can catch problems early and extend equipment life. Many contractors offer maintenance plans that bundle inspections and priority scheduling.

What to expect during a service call

A technician will arrive at your scheduled time, inspect the system, diagnose the problem, and explain what repairs or replacements are needed. They'll usually provide a cost estimate before starting work. For simple fixes like replacing a filter or cleaning a vent, the call might take 30 minutes to an hour. For complex repairs or installations, work can stretch across multiple visits.

Bring your system's model number and age if you have them—this information helps the technician order the right parts and understand warranty coverage. If you've noticed specific symptoms (the system won't turn on, it's leaking water, it's unusually loud), describe them clearly so the technician can narrow down the problem faster.

Costs and payment

HVAC work typically includes a service call fee, parts cost, and labor. Service call fees cover the technician's time to diagnose the problem and usually range based on your location and the time of day. Parts cost depends on what needs replacing—a capacitor costs far less than a compressor or a full system replacement. Labor is usually charged hourly or as a flat rate for the specific repair.

Installation of a new furnace, air conditioner, or heat pump is a larger investment than repairs. Many contractors offer financing options or payment plans. Ask whether the company offers seasonal discounts or maintenance plan pricing, which can reduce per-visit costs if you're planning regular service.

Licensing and contractor standards

South Carolina requires HVAC contractors to hold a license issued by the Department of Labor, Licensing and Regulation (DHEC). A licensed contractor has passed exams demonstrating knowledge of refrigeration, electrical work, and safety codes. When you contact a company, you can ask for their license number and verify it through the state.

Licensed contractors carry liability insurance and workers' compensation coverage, which protects you if someone is injured on your property or if work causes damage. Unlicensed work may void your equipment warranty and leave you without recourse if something goes wrong.

Scheduling and seasonal demand

HVAC contractors are busiest in winter (heating emergencies) and summer (cooling failures). If your system breaks during peak season, wait times for appointments can stretch to several days. Emergency or after-hours service typically costs more than standard business hours work.

If your system is aging or you know it needs work, scheduling maintenance or replacement during shoulder seasons (spring or fall) usually means faster appointments and lower costs. Many contractors also offer priority scheduling to maintenance plan members.

Questions to ask before hiring

Ask whether the company is licensed and insured. Request a written estimate that breaks down service call fees, parts, and labor separately. Confirm the warranty on parts and labor—some contractors offer one-year warranties on repairs, while others offer longer coverage. Ask how long the job typically takes and whether they'll need multiple visits.

If you're considering a new system, ask about efficiency ratings (SEER for air conditioners, AFUE for furnaces), rebates from your utility company, and financing options. Ask whether they handle the paperwork for rebates or if that's your responsibility.

Frequently Asked Questions

How often should I have my HVAC system serviced?

Most manufacturers recommend annual maintenance—typically a spring tune-up for air conditioning and a fall tune-up for heating. If you use your system year-round or have an older unit, twice-yearly service may extend its life and catch problems early.

What's the difference between a repair and a replacement?

A repair fixes a specific broken part, like a compressor or thermostat. A replacement means removing the entire system and installing a new one. Contractors typically recommend replacement when repairs become frequent, the system is over 10–15 years old, or the cost of repair exceeds 50 percent of a new system's price.

Can I replace just the air conditioner or just the furnace?

Yes, you can replace one component at a time. However, if both are old, replacing them together can be more efficient and may may have access to you for better rebates. A contractor can advise whether your existing equipment is compatible with a new unit.

What should I do if my system stops working on a weekend or holiday?

Call the contractor's emergency line. Most HVAC companies offer after-hours service, though it costs more than standard rates. In extreme weather, emergency calls take priority. If the company is fully booked, ask for a referral to another licensed contractor in the area.

How do I know if my contractor is giving me an honest estimate?

Get estimates from at least two contractors so you can compare. The estimates should itemize service call fees, parts, and labor separately. Be wary of estimates that are significantly lower than others—they may indicate incomplete work or hidden fees added later. Ask what's included in the warranty and what happens if the repair doesn't solve the problem.