Hands in work gloves replacing a capacitor inside an open air conditioning condenser

Henry County · about 10 minutes south on I-75

AC Repair in McDonough, GA

McDonough is about ten minutes south of home base on I-75, in the same county we work out of. Whatever your AC is doing, it is a short run to come and find out.

AC repair ten minutes down the interstate

McDonough is the Henry County seat and it has grown into everything around it, which means the housing runs from decades old to barely finished — and so does the equipment. We work on all of it. An older split system that wants a contactor and a fifteen-year-old condenser that has finally lost its charge are different calls with genuinely different answers, and the difference is not something you can guess from the kerb.

So the order never changes: diagnose first, quote second, never the other way round. If the honest answer is a part, you get the part and the price of a part. McGrath is owner-operated — there is no commissioned salesman in the van hoping you say yes to a system.

If you are in one of the newer subdivisions, there is a decent chance your neighbours have the same equipment you do: same builder, same year, same box, installed the same week. When one of them starts going, the others are generally not far behind. That is not a scare tactic — it is just how a street built in one go tends to age — but it is genuinely useful information when you are weighing up repairing this one against planning for what replaces it.

Worth a call if any of this sounds familiar

  • The vents are blowing, but the air isn’t cold
  • The outdoor unit hums and the fan won’t turn
  • Ice on the copper line where it meets the air handler
  • The breaker trips every time the compressor kicks on
  • Water standing around the indoor unit
  • It runs all afternoon and never reaches the thermostat setting
More on this service Residential Heating & Cooling

From the Google listing

4.9 stars, 18 reviews, owner-operated.

Real reviews, published exactly as they were written. Every one of them is on the Google listing under McGrath Mechanical.

McGrath Mechanical is my go to choice for HVAC repairs and installation. As a property manager of properties all over the Atlanta area, I need a reliable HVAC source that will show up, diagnose the problem correctly, tell me the truth and make the repair at a reasonable cost. McGrath does exactly that! New system installations are efficient and affordable as well. I highly recommend James at McGrath Mechanical!
Chris Holland Google review
If he says he will be there then he will. James is fast, reliable, and gets the job done. I thought I needed a new unit but that wasn’t the problem. After about 30 minutes he had us up and running again. Any questions I had he was able to give me an answer. Highly recommend
brian blackmon Google review

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