AC Repair Service Sky HVAC - Air Conditioning Repair & AC System Installation Services in Charlotte NC See why people are making the switch to Sky HVAC! And check out our seasonal specials to help keep your HVAC system running at peak performance. Whether youre in need of air conditioning repair services, installation or maintenance we have coupons available. We specialize in heating and AC repairs, system replacements, and equipment maintenance. We work hard to provide exceptional client services and cost-effective HVAC solutions for your home or business.