Maintenance Service

Often, the value of maintaining your expensive heating and cooling equipment is underestimated. Heating and cooling equipment has many moving parts and pieces that are important to service in order for your equipment to last it's full life expectancy. It is much like performing regular maintenance on your vehicle. GreenDena, Pasadena, Maryland's premier HVAC installer, wants you to consider the benefits of yearly maintenance on your heating and air conditioning system. We provide maintenance services throughout Anne Arundel County including Pasadena, Glen Burnie, Severna Park, Arnold, Annapolis, and Millersville. GreenDena's Yearly Maintenance Plan allows us to address minor heating and cooling issues that might cause strain to the unit and lead to an emergency repair. In addition, regular cleaning limits dust that blocks air, otherwise causing the motor to overheat and eventually fail.

There are additional perks to our Yearly Maintenance Plan that will make ownership of your HVAC system a more cost effective and satisfying experience.

Call us today to find out more!


We will inspect every part of your system, including your indoor and outdoor units, coils, blower assembly, drain pan and condensate line. Your gas furnace will be inspected as well, paying close attention to the burner assembly, heat exchanger and flue system. Your outdoor coil, drain pan, condensate line and blower assembly will be thoroughly cleaned.

Further, we will examine thermostats, electrical parts, wiring and connections, ductwork, checking the overall system condition for damage or wear, so you remain completely confident that the investment of your heating and cooling system is well cared for.





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  • Greg at GreenDena is about the nicest guy you could meet. He is an expert on HVAC systems and has done a wonderful job on my retail space. As soon as you meet Greg, you feel at ease that he is someone you can trust and who will do a great job.

    - Mark M. Severna Park, MD

  • GreenDena is one of the best contractors I have ever worked with in terms of competence, efficiency in installation, promptness, courteousness, and they had the best price.

    - R K. in Arnold, MD

  • Very happy with the service and equipment. They were able to install my whole house humidifier 2 days after we agreed on the contract. Would recommend to friends.

    - Severna Park, MD