A Portion of All AGL Proceeds Support Charitable Causes

Our Location

There’s a reason why our Charleston neighbors trust us to go above and beyond in meeting their HVAC needs. Since 2004, our locally-owned and operated company has continued to expand so that we can better provide professional and honest solutions for our customer base.

3429 Maybank Highway, Suite A1
Johns Island, SC 29455


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Contact us using the form below and we will get in touch with you asap to get you started with AGL’s maintenance services.



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Available with approved credit on select systems. Call for Details.


Our Customer Stories

Our technician was extremely polite, professional, and personable! He updated me on his progress during his work and cleaned up after himself! This was our first experience with AGL and we were very impressed, knowing we made the right decision to go with them!

Hayley Vislocky

I have truly been impressed with Ricky's professionalism, honesty, and recommendations through this entire process from start to finish. The crew came in and did the installation in one day and had to come back a 2nd date to touch-up a few remaining items, but Ricky ensured the crew were on point!

If you are looking for a new HVAC company or looking to install a TRANE product, look no further than AGL Heating & Cooling... you won't be disappointed!

Matthew Cunningham - Google