Hoot Heating & Air 39
https://charlie-wiki.win/index.php/Choosing_Reliable_HVAC_Service_in_Rising_Sun,_Maryland
When my AC died in the middle of a heatwave, Hoot Heating & Air sent a tech out within a couple hours. He was super chill, explained everything clearly, and fixed it on the spot without trying to upsell me. Fair pricing too, which is rare these days.