An arborist is a specialist in the care of individual trees. Arborists are knowledgeable about the needs of trees, and are trained and equipped to provide proper care. Mark Mortensen is among the best and has worked in the field since 1996. Pruning or removing trees, especially large trees, can be dangerous work. Tree work should only be done by those trained and equipped to work safely in trees. Well cared for trees are attractive and can add considerable value to your property. Poorly maintained trees can be a significant liability. Contact us now or call Mark Mortensen directly at Mortensen Tree Service to schedule a free evaluation today.
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Tim E.


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If you decide to use this service, be prepared to experience very poor customer service. When I called the company to set up an initial consultation and asked for a Sunday appointment, Mark said he was taking that day off and to call at the end of the following week to set up an appointment. I called at the end of the week to set up something for Saturday, and in a rather rude manner, he said Saturday wouldn’t work and that Sunday would work better. There were delays due to rain, but when he finally called to set a date, he said he would try to make it on that date. I asked if he didn’t’ would he be coming the following day. He said no because he had another project lined up and he didn’t know when he would make it out. I got the distinct impression he expected me to work around his schedule rather than working around mine. At that point, I choose to use his service.

More Business Info

Mission Statement:Provide the finest quality tree serviceRespond promptly to all inquiriesOperate all phases of our operation in a very professional and safe manner.

BBB Rating
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BBB Accredited businesses follow the BBB Code of Business Practices and pay a fee for accreditation review and monitoring. Accreditation is not a BBB endorsement or evaluation of the business’ product quality or competency in performing services.

BBB Rating and Accreditation information may be delayed up to a week.
Regular Hours
Mon - Sun:
  • Arborist Service
  • Tree Removal
  • Tree Pruning
  • Tree Trimming
BTN, EnviroTree, Solutions 4 Earth, Ultimate Turf

BBB Denver/Boulder

International Society of Arboriculture


Social Links
Tree Service, Arborists, Stump Removal & Grinding
Other Information

Parking: Private

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