St. Marys and Calvert County Maryland HVAC Services   ♦   We Make Your Air Flow!

HVAC Replacement in Piney Point, MD

Check out this recent HVAC replacement in Piney Point, MD. Our team installed a Carrier 24 series infinity heat pump and coil with a high efficiency gas furnace. A whole home bypass humidifier was placed for easy access during maintenance along with installation of a carrier whole home electronic air purifier and dual ultraviolet lamps in the coil. For your HVAC installation and service needs, call Great Mills HVAC.

Whole Home Duct System and Heat Pump Installation in St Mary’s County in Maryland

With little space, our team was able to install a whole home duct system during this recent renovation in St Mary’s County in Maryland. Along with the duct system, we installed a Rheem 2 stage heat pump and air handler with low voltage wiring, condensate drains, copper linset, whole home filter and attic fan. For your HVAC service and installation needs, call Great Mills Heating and A/C!

Furnace Repaired in Lexington Park, MD

“Great Mills Heating and Air Conditioning was absolutely fantastic, our furnace started having issues at the beginning of December and they went above and beyond to diagnose the problems, explain what was going on, and get the furnace running properly. Highly recommend, will definitely use them again in the future!”

– D.H in Lexington Park, MD

Choose Great Mills for superior installation and maintenance or service of your heating, ventilation, air conditioning or refrigeration system to get the job done right the first time! Call us at 301-994-0522.

Our Recent Installations in Great Mills and Lexington Park

From commercial to residential, our install crew has been hard at work. Check out a few of our recent installations in Great Mills and Lexington Park. For your installation needs, contact Great Mills Heating and Air at 301-994-0522.

Two Stage Heat Pump and Air Handler in Lexington Park, MD

Proper installation of an HVAC system is necessary for correct performance, energy efficiency and safety. During this home renovation in Lexington Park, MD, our team assessed the existing HVAC system and determined it was in disrepair. We installed a 2 stage Heat pump and Air handler along with a complete duct system. All duct work under the home was properly sealed, insulated and supported. New grills, registers, wiring, refrigerant lines, condensate drain, service disconnect and controls were installed completing this installation. For honest assessments and quality installations, contact Great Mills Heating and Air at 301-994-0522.

18 Seer Variable Speed Heat Pump Installed in Great Mills, MD

Our team recently installed an 18 Seer Variable Speed Heat Pump for a residential customer off of Chancellors Run Rd in Great Mills, MD. Choose Great Mills for superior installation and maintenance or service of your heating, ventilation, air conditioning or refrigeration system to get the job done right the first time. Call us at 301-994-0522 or send us a quick message via our website!

HVAC System Installation in Great Mills, MD

The Great Mills HVAC team replaced both the upper and lower level HVAC systems at a home in the Meadow Lake community in Great Mills, MD. A walkway was built on the attic to ensure safe access for future service. Both systems include water safeties and tamper proof refrigerant caps 2 of the many standard features we include in all new system replacements to help protect your investment. Contact us at 301-994-0522 or visit our website.

Carrier High Efficiency Heat Pump and Air Handler in Leonardtown, MD

One of our recent jobs in Leonardtown, MD was this Carrier high efficiency heat pump and air handler. We moved the new air handler from the attic to the garage and redid the zoning. For your heat pumps, heating and cooling system installations, contact Great Mills at 301-994-0522!

Two Stage Heat Pump with Coil and Gas Furnace in Great Mills, MD

Our team completed a job with a two stage heat pump with coil and high efficiency two stage gas furnace. In addition, we did a zoning flue pipe and line set installation in Great Mills, MD. Great Mills provides superior installation and maintenance or service of your heating, ventilation, air conditioning or refrigeration system. To get the job done right the first time, give us a call at 301-994-0522.