Keeping you comfortable through all types of weather is the mission of our HVAC contractors in Edgewater, Maryland. At DO Zindorf Heating & Air Conditioning, we have offered superior customer care and quality HVAC repairs, service, maintenance and installation to residential and light commercial clients since 1981. Trust in us to stay ahead of the curve when it comes to heating and cooling technologies. From oil or gas-fired furnaces and boilers to air source and geothermal heat pumps, trust in our HVAC contractors to help you lower your energy costs while optimizing your indoor environment. The friendly technicians on our staff are available 24 hours a day, 7 days a week for emergency HVAC services.