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Heating & AC Repairs 

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Having AC or furnace issues? You need a pro that you can trust to fix your system right. At Reliable Heating & Air, every one of our McDonough techs are trained and licensed to work on any HVAC system. And with more than 200 trucks on the road, we can get to your home and fix your system when you need help most.

Reliable also offers Plumbing & Electrical service to Cumming and the surrounding area.


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Heating & Air System Repair

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Heating & Air System Installation

Save Your Money With
Comfort As A Service

Enjoy all the benefits of a new Trane heating & cooling system and NONE of the burden of costly repairs, maintenance, financing charges or coming out of pocket for unexpected thousands.

Our Many Options For

Reliable Heating & Air offers different financing programs for our customers and we help you find the program that's just right for you and your budget.

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Serving McDonough

  • We're the nation's #1 Trane dealer.

  • We have an unbeatable warranty.

  • We offer more coupons than any other home service company.

  • We give our customers the BEST pricing.

  • With over 200 trucks and 300 technicians, we can get to you fast.

  • We never charge extra for after-hour or late-night service.