Mr. Drendel certainly is a Certified Arborist, and has been for a very long time. If checked on correctly, the comment from this "disappointed" person would not have been submitted. Please check the records thoroughly before writing these things. Mr. Drendel takes pride in his company and his work. He is on each job that his company takes on. Thank you for so many years of commitment.

This guy says he is a licensed Certified Arborist, however I checked through the International Society of Arborist website, this is a website that list all the licensed arborist, and he is NOT. I think this guy just thinks people wont check him out.http://www.isa-arbor.com/findarborist/findarborist.aspx I am going to report this company to the Contractors Construction Board for false advertising, and recommend anyone looking for an actual licensed certified arborist to follow the link above or do a search for ISA Tree and go to their website and pick out an arborist their. Good luck to you and shame on you Drendel's.

The knowledge and dependability are refreshing. I have used Drendel's Tree Service for years. They might be the oldest tree Service in Portland and the companies founder oversees every job.It's quite nice to have easy access to a Certified Arboristthat knows what he's talking about.Thanks for years of reliable tree work.I highly recommend Drendel's Tree Service!