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Locally built, owned and operated by two brothers. Established in 2004.

HVAC Maintenance & Repairs


Your heating and air conditioning system should matter more when it is working than when it is not. As we’ve said before, “Just because it’s behind the walls doesn’t mean it is not there.”

It is your home or business and the choice is up to you, but if you neglect your HVAC system you will experience premature failures, higher electric bills, poor air quality and possible mold growth one day.

With routine maintenance from AGL Services, you will receive 15% off every service repair and never pay overtime diagnostic rates. Our Preventative Maintenance Checklist ensures nothing will be left unchecked.

We price our maintenance at a break-even level. Our goal is not to profit from maintenance, but to be the Charleston-based heating and air conditioning company you choose if you need a repair or decide to replace your HVAC system.

Click to view Preventative Maintenance Checklist

(Click on the images above to view larger versions)


Interior components of an air conditioning unitOur dedicated, skilled Charleston HVAC technicians have over 100 years of combined experience. Their trucks are always stocked with universal HVAC parts and they are ready to take great care of our customers.

A diagnosis of your residential heating and air conditioning system during normal business hours (Monday through Friday, 8 a.m.-5 p.m.) costs $88. We do not offer a free diagnosis like some HVAC companies because we do not want to increase our repair prices.

Once we diagnose the problem, we will discuss it with you, provide you with a repair cost and ask for your approval to proceed. We warranty our work and the HVAC parts we use.

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