Get a 30% Federal Tax Credit on Energy Efficient Geothermal systems through 2016


Geothermal is currently the most energy efficient technology available in heating and cooling. Thanks to Maryland’s Residential Clean Energy Grant and other rebates, along with our affordable financing options, it is now more attainable than ever! Now is the time to take advantage of the Federal Tax Credit and save 30% on a geothermal system before the credit expires after 2016.


Call today for a FREE estimate! 410-255-5200


GreenDena Customizes Your Installation

We know that how your geothermal equipment is installed can have a great impact on how it performs, so we pay close attention to every detail. Here at GreenDena we:

  • Have true passion for quality workmanship
  • Build custom ductwork onsite
  • Install only quality geothermal equipment


Geothermal vs. Standard Equipment

Geothermal heat pumps boast many benefits compared to standard air-source heat pumps or furnaces as they:

  • Operate quieter
  • Last longer
  • Need less maintenance
  • Require no heating fuel
  • Are highly energy efficient
  • Produce hot water (saving you up to 50% on annual water heating bills)
  • Can be financed in many ways to help make them affordable

Cut Your Cost in Half!

The multiple rebates currently available give us the ability to cut the cost of your geothermal install in half (based on the average size installation). The rebates you can take advantage of include:

  • 30% Federal Tax Credit
  • $3,000 Maryland Clean Energy Grant
  • Up to $2,500 Anne Arundel property tax credits
  • $1,800 BGE rebate (per system)


Ask us about financing!

Financing options give you flexibility and help to make geothermal affordable!


We provide geothermal services throughout Anne Arundel County including Pasadena, Glen Burnie, Severna Park, Arnold, Annapolis, Millersville and surrounding areas. 

Start your project today!  410-255-5200


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  • 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

  • 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