Residential Service

Centrally located in Anne Arundel County, Maryland, GreenDena services Pasadena, Glen Burnie, Severna Park, Arnold, Annapolis, Millersville and surrounding areas. Our belief is that every client deserves priority heating and air conditioning service. Due to the fluctuating climate of the region, we realize that a dysfunctional HVAC system can cause discomfort, expense and frustration for you and your family. Trust in GreenDena to install your HVAC system, maintain your equipment and keep your heating and cooling units operating at peak performance.

We have 18 years of experience installing and maintaining heating and cooling systems, including services such as air conditioner and heat pump installation and replacement, servicing units that are not operating properly, regular cleaning and inspection of units to help you avoid costly emergency HVAC repairs.

We use only the best equipment, trusting companies such as Trane and Mitsubishi, because we have experienced customer satisfaction and proven performance over time with these brands.

GreenDena is Pasadena's premier HVAC installer because we meet your needs and care about every detail.

Service Request

Free Estimates

  • 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

  • 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

  • The owner was polite, professional and on time. He beat all the other estimates and completed the work early in addition to arranging the county Inspector the next day. Truly it was the most pleasant experience I've ever had with a contractor.

    - Donald C. in Glen Burnie, MD