Whether your car AC isn’t blowing cold in July or your heater is blowing cold air in February, the ASE-certified technicians at Hilliard Auto Repair handle the full range of auto AC repair and heating-system service — with up-front pricing and same-day diagnostics when we can. Searching for a car AC repair shop near you? You’ve found one.
We cover every part of your vehicle’s climate system in-house: AC recharge and refrigerant service, compressors, condensers, evaporators, blower motors, heater cores, thermostats, climate-control modules, and full HVAC diagnostics. AC and heating problems almost always trace back to one of a handful of root causes — we run the proper tests to find which one before we quote any work. As a NAPA AutoCare shop, your repair is backed by the nationwide NAPA warranty.
20% Off Labor — Up to $50 Off
Save 20% on labor for your AC or heating service, up to $50 off. No coupon needed — just mention it at check-in. Not valid with any other offer.
Schedule Your AC & Heating ServiceClimate-system problems tend to show up at the worst times — the first hot day of summer, the first cold morning of fall. Catching them early is cheaper than waiting and easier on everyone in the car. Bring it in if you notice any of these:
A few of the questions we hear most often. If yours isn’t covered, give the shop a call — we’re happy to help.
The most common signs are AC blowing warm air, the heater blowing cold air, weak airflow, strange smells from the vents, AC compressor noises, refrigerant leaks, or a defroster that won’t keep up. Any one of those is worth a diagnostic — and the right time to fix the AC is before the first 90-degree day.
The usual causes are low refrigerant (almost always from a leak), a failing compressor, a clogged condenser, a bad expansion valve, or an electrical issue with the AC clutch or controls. Low refrigerant is the most common — but recharging without fixing the leak is only a short-term fix. We diagnose the cause first, then recommend the repair.
Most heater problems trace to one of four causes: low coolant, a stuck thermostat, a clogged heater core, or a failing blend door (the flap that directs air through the heater core). A coolant check is often the first step. We’ll diagnose which one and walk you through the fix.
A properly working AC system shouldn’t need regular recharges — refrigerant is sealed and doesn’t get used up like fuel. If your AC is low, there’s a leak somewhere. We find and fix the leak first; the recharge is part of completing the repair, not a routine service.
A proper recharge includes leak detection, evacuating the old refrigerant, replacing any failed components, vacuum-testing the system, refilling with the correct refrigerant and oil to manufacturer specs, and verifying performance with gauges and vent temperature. The cheap “stop-leak” cans at the parts store skip all of that and often cause more problems than they solve.
Yes. Heater-core replacement is labor-intensive on most modern vehicles because the core sits behind the dashboard, but it’s well within what we do. Coolant on the front passenger floorboard, fogged windows that won’t clear, or a sweet coolant smell inside the cabin are the classic heater-core symptoms — bring it in and we’ll confirm it.
A diagnostic typically takes 1 to 2 hours. AC recharges with leak repair run 2 to 4 hours. Compressor or condenser replacement is usually a half-day. Heater-core replacement can take a full day or more depending on the vehicle. We’ll give you a clear time estimate up-front when we quote the work.
4462 Cemetery Rd.
Hilliard, OH 43026
Monday-Friday; 8 a.m.-6 p.m.
Saturday, 9 a.m. - 3 p.m.
Copyright © 2026 Alpha Automotive, LLC