Have used Atlas for over 10 years for annual maintenance of furnace, A/c, humidifier, and gas fireplace. Consistently have provided excellent service: on time, courteous, clean, knowledgeable, ... Emergencies addressed in timely manner.
Recently, in our new home, compressor on 7 yr old A/C died, got a scratch and dent thru Atlas w full warrantly, better brand, much better sized and operation than former unit, and saved 25% - they knew $ was tight and really went the extra mile (scratch is tiny on on of legs supporting unit, like who cares). Again, from sales thru service, they were excellent.
Have recommended them to family and friends, and continue to do so, without hesitation.