No cool? 24/7 emergency AC response —Call (614) 555-0189

Thermaline Heating & Cooling
Technician servicing an outdoor air conditioning condenser unit

AC Repair & Installation

Fast air conditioning repair and right-sized replacement systems — diagnosed honestly, quoted upfront, and installed to manufacturer spec.

When an air conditioner quits in a Columbus July, you don’t want a sales pitch — you want cold air and a straight answer. Our NATE-certified technicians diagnose the actual fault, fix what can be fixed, and tell you honestly when a repair is throwing good money after a failing compressor.

AC repairs we handle every week

  • No cooling at all — tripped condensate safety switches, failed capacitors, and burned contactors are the most common culprits, and most are fixed in a single visit.
  • Weak or warm airflow — dirty evaporator coils, iced-up refrigerant lines, and duct restrictions that make a healthy condenser look broken.
  • Refrigerant leaks — found with electronic leak detection, repaired, and recharged by EPA 608–certified techs. We never “top off” a leaking system and call it fixed.
  • Short cycling — an oversized or failing unit that starts and stops constantly, wearing itself out and never dehumidifying the house.
  • Strange noises — grinding fan motors, chattering contactors, hissing lines. Noises are the system telling on itself early; the fix is cheaper now than in August.

When replacement makes more sense

If your AC is past 12–15 years, uses phased-out refrigerant, or needs a repair worth a third of a new unit, we’ll show you the math on both paths. New installations start with a Manual J load calculation — we measure your home rather than copying the old tonnage — and we’ll walk you through SEER2 efficiency options so you can decide whether a high-efficiency unit earns back its premium in your utility rates. Every quote is flat-rate, in writing, and good for 30 days.

Financing is available on new systems through our third-party lending partners, and qualifying high-efficiency equipment is often eligible for utility rebates — ask and we’ll tell you what applies to your install.

How it works

From first look to final walkthrough

  1. Diagnosis

    We test the whole system — refrigerant pressures, capacitor, contactor, coil condition, airflow — and show you photos and readings, not just a verdict.

  2. Upfront Quote

    A flat, written price before any work starts. If the compressor is failing on a 15-year-old unit, we price the repair and the replacement side by side.

  3. Repair or Install

    Most repairs are done the same visit from a stocked truck. Replacements are sized with a Manual J load calculation, never by guessing from the old nameplate.

  4. Warranty & Follow-up

    Repairs carry a written labor warranty; new systems carry the manufacturer's parts warranty plus our 10-year labor coverage, registered for you.

Questions

AC Repair & Installation FAQs

More answers on the full FAQ page — or call and ask a person.

How long should a furnace or air conditioner last?

With regular maintenance: 15–20 years for a gas furnace, 12–17 for a central AC, and 12–15 for a heat pump (it works year-round, so it accumulates hours faster). Neglected systems commonly die 5 years earlier. Past those ranges, repairs get more frequent and efficiency lags modern equipment enough that replacement often pays for part of itself in utility savings.

Should I repair my old system or replace it?

Our rule of thumb is the "$5,000 rule": multiply the repair cost by the system's age — if it tops $5,000 (say, a $500 repair on a 12-year-old unit), replacement usually deserves a serious look. We always quote the repair honestly and, when the math is close, show the replacement price beside it with real operating-cost estimates so you can decide with numbers instead of pressure.

How much does a new AC or furnace cost?

In the Columbus market, most standard-efficiency AC replacements land in the $6,000–$9,000 range installed, gas furnaces $5,500–$8,500, and full system replacements (furnace + AC or a heat pump system) roughly $12,000–$18,000 depending on size and efficiency tier. Every Thermaline quote is flat-rate and written — the number you approve is the number on the invoice, including permits and haul-away.

How do rebates work, and who files the paperwork?

Most rebates for high-efficiency equipment come from local utility programs ($200–$1,500 on qualifying systems), manufacturer seasonal promotions ($100–$500), and periodic state efficiency programs. Which ones apply depends on the specific model's ratings and your utility. We identify what your chosen system qualifies for before you sign, and we file the utility paperwork for you — you just cash the check. Rebate availability varies by location and utility provider.

All frequently asked questions

Comfort Club members save 15% on this service Plus priority scheduling and scheduled seasonal tune-ups, from $ 14/mo.

See the plans

No pressure. Just a straight answer.

Get a free ac repair & installation estimate

An honest diagnosis and an upfront flat-rate quote — free, and zero pressure either way.

24/7 emergency heating & cooling response.