Serving the Denver Community

As we say in our creed, “a business exists and prospers as it serves the interest of our customers, employees, and the community.”

We will always practice what we preach


  • Great teachers! Pasterkamp people are wonderful. Great teachers as well as installers. So far the Lennox furnace is very quiet and provides much more even heat which is just what I was looking for! I’m anxious to try out the AC, and I’m sure it will be just as great. Thank you for a great…
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    — Carol H
  • Expertise, perseverance, and value… “Dear Dirk, Needed to let you know how much we appreciate your patience and perseverance to solve our air conditioner issue. Because of you and the expertise and perseverance of Dan, your technician…we ended up not having to spend a bundle of money for a new motor, which Dan proved we…
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    — Jane and Jerry R.
  • Outstanding Job “Recently, I contracted with your company to have a Mitsubishi heat pump system installed at my house. I wanted to drop a note to you regarding the outstanding work that Dan did while installing the system. Over the years 1 have hired many contractors to do a variety of jobs at our houses….
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    — Bill S
  • Nice, Fair, and Quick “Thank you for taking care of me today. Marc was very nice, fair, and quick. He knew just what to do.”

    — Alice K
  • Prompt Repair and Follow Up “Thank you for prompt repair of my furnace when I had no heat. Also I appreciate the follow up service that was needed.”

    — Patricia V
  • Integrity, honesty, and great service! “I generally have a service call for my furnace every year with your tech Ron Gallardo. I ask for him specifically – he explains everything thoroughly, never speaks down to someone like me who doesn’t know the inner workings of her furnace. Your company stands far and above in customer…
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    — Jennifer R
  • Exceptional Service “Dear Dirk, I directed this to your attention just so I could get word to you of the exceptional service I received from Bruce and Steve in getting my water heater replaced last week. My wife saw some water on the floor that morning, I called 303-777-1234 and when I found that Bruce…
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    — Lou B
  • Good judgment, creative thinking and initiative “Pasterkamp Please accept my sincere appreciation for attending to our problem boiler under unusual circumstances. We travel for business and are only home every other weekend. We specifically wish to compliment Mark, the technician who fixed our boiler. I forgot to forward our phone, so Mark had no way…
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    — Ed N
60 years
Better Business Bureau

CASA – Court Appointment Special Advocates for children


CASA appoints trained advocates to work with families and children who have been removed from their homes due to abuse or neglect. They work with the court systems to ensure the children and families have the best chance for a successful outcome, as well as advocate for the safety and well-being of the children. To find out more, or support CASA directly please visit their website:

Round Up Fellowship


Roundup Fellowship is a non-profit organization supporting people with developmental disabilities, providing them the opportunity to become as productive and independent as possible at home, in school, on the job, and in society. They provide supportive teaching and appropriate behavioral techniques to people with conditions such as mental retardation, cerebral palsy, epilepsy, and autism. To find out more, or support Roundup Fellowship directly please visit their website:

St. Francis Homeless Center


St. Francis Homeless Center provides metro Denver homeless men and women a shelter as well as services to help them in their daily struggle to survive and to transition out of homelessness. St. Francis helps on average over 700 people a day, and welcomes them with dignity and respect, as well as provides a safe place to stay when other shelters are unavailable. To find out more, or support St. Francis Homeless Center directly please visit their website:

Denver Christian Schools


A community of parents and teachers dedicated to educating children in a safe, caring, and supportive Christian environment. Classes ranging from preschool to high school, they emphasize the power of the church, the home, and the school working together. To find out more, or support Denver Christian Schools directly please visit their website:

Rehoboth Christian School


Rehoboth Christian School was founded in 1903 as a ministry to the Native American people of the Four Corners region. Today, Rehoboth continues its ministry through education with multiculturalism as a backdrop, serving approximately 70% Native American students, 20% Anglo students, and 10% students of Hispanic descent and other ethnic minorities. To find out more, or support the Rehobeth Christian School directly please visit their website: