Arborists

Trees slow climate change, help us conserve energy, and improve the quality of our air and water. To keep our urban forest healthy, individual trees need to be planted properly. They also need proper care and maintenance. You can learn more by reading our tree planting instructions and tree care tips.

Though each of us can provide basic care for our trees, sometimes we need the expertise of an arborist-whether to determine the best place to plant a new tree in our yard, to prune a tree properly, to remove a damaged tree, or to learn if our tree needs treatment for a disease or infestation.

Certified arborists are required to take an extensive test covering tree pathology, rehabilitation, and the latest techniques in arboriculture. Certified arborists must also have a minimum of three years of experience. Arborists can only be certified through the International Society of Arboriculture (ISA).

Friends of Trees doesn't endorse individual arborists, but the following list of Arborist Partners have worked with Friends of Trees to enhance our urban forest. All are certified arborists.

Friends of Trees Arborist Partners

Our Arborist Partners are listed in alphabetical order. You can click on each name to learn more about the individual services offered. All of our Arborist Partners are certified by the International Society of Arboriculture (ISA). Those who are members of the ISA have "ISA" after their name. Those who are members of the Pacific Northwest Chapter of the ISA (PNW-ISA) have "PNW-ISA" after their name.

Matt Allen
Peter Botke
Mark Bourgeouis
John Buttrell
Terrill Collier
Terrence Flanagan
Jim Hendricksen
Kevin Hillery
Thomas Jazwinski
John Landon
Jim Meyers
Damon Schrosk
Jeff Spisla

Matt Allen, Member of ISA
Pacific Tree Works
P.O. Box 80492
Portland, OR 97219
Tel 503-473-6067
pacifictreeworks@gmail.com
www.pacifictreeworks.com

Pacific Tree Works is a progressive, community oriented company. The company's focus is to deliver clientele currently researched information. A commitment to continuing education illuminates its craft.

Services Provided:

  • Pruning
  • Removals
  • Technical rigging
  • Site preparation
  • Preservation
  • Disease diagnosis
  • Arborist reports

Peter Botke, Member of ISA, PNW-ISA
Buds Expert Tree Care Incorporated
6266 SE Scott Dr.
Portland, OR 97215
Tel & Fax 503-235-4127
Cell 503-201-3631
petebotke@aol.com
www.budsexpert.com/index.html

Pete Botke started his career as an Arborist in 1993. He has worked for various tree care companies mainly out of Lake Oswego, Oregon. He became certified with the International Society of Arboriculture in 1995. In 1999, he became the proud father of his first born child Rachel Marie. Shortly after that he and his wife Sheila, embarked on a venture that has come to be known as Buds Expert Tree Care, Incorporated. His work can be seen throughout western Oregon.

Services Provided:

  • Tree pruning and preservation
  • Tree and stump removals
  • Tree inventory and identification
  • Consulting

Mark Bourgeouis, Member of ISA, PNW-ISA, TCIA
Arbor Pro Tree Experts
Lake Oswego, OR 97035
Tel 503-473-TREE (8733)
Fax 503-491-2834
www.ArborProNW.com
info@arborpronw.com 

Arbor Pro Tree Experts is a full service tree care company with over 10 years of business experience. The company's arborists are certified and strive to deliver the highest quality tree care.

Services Provided:

  • Free estimates
  • 24-hour emergency services
  • Preservation
  • Plant health care
  • Pruning and removal
  • Consulting
  • Arborist reports
  • Insect and disease treatments
  • Stump grinding

John Buttrell, Member of PNW-ISA
Arborscape Ltd. Inc.
11113 NE 95th St.
Vancouver, WA 98662
Tel 360-944-5124 or 866-944-8733
Fax 866-944-8733
www.arborscapetreecare.com
arborscape@juno.com

Arborscape Ltd. Inc. has been in business for over 20 years in the Portland Oregon and Southwest Washington region. We are dedicated to the highest quality tree and landscape care for our customers.

Services Provided:

  • Corrective Pruning
  • Clearance Pruning
  • Tree Removal
  • Stump Grinding
  • Cabling and Bracing
  • Fertilization
  • Integrated Pest Management
  • Landscaping - Specializing in Japanese and Courtyard gardens
  • Garden Design and Installation
  • Water Features
  • Rock Work
  • Maintenance

Terrill Collier, Member of ISA, PNW-ISA, ASCA, TCIA accredited member
Collier Arbor Care
11814 SE Jennifer St.
Clackamas, OR 97015
Tel 503-722-7267
Fax 503-723-5531
www.collierarbor.com
terrill@collierarbor.com

Collier Arbor Care is a homegrown, second-generation, family-owned business. Collier Arbor Care is recognized by its customers and by horticulture professionals for knowledge, experience, trusted advice, and the highest standards of workmanship. The continuing education of its staff brings each landscape the most up-to-date knowledge and techniques in the industry.

Services Provided:

  • Plant health care integrated plant wellness
  • Organic plant care
  • Targeted insect and disease treatment
  • Pruning trees & shrubs
  • High climbing and removals
  • Fertilizing trees & shrubs
  • Organic-based lawn care
  • Consultation/diagnosis

Terrence Flanagan, Member of ISA, Member of PNW-ISA, ASCA
Teragan & Associates, Inc.
3145 Westview Circle
Lake Oswego, OR 97034
Tel 503-697-1975
Fax 503-697-1976
terry@teragan.com

Services Provided:

  • Tree preservation programs
  • Hazard tree evaluations
  • Expert witness
  • Appraisals
  • Training programs for pruning
  • Climbing
  • Arboriculture lectures
  • Management programs
  • Tree protection during construction

Jim Hendricksen, Member of PNW-ISA
 Fair Weather Tree Experts
923 Summit St.
Oregon City, OR 97045
Tel 503-656-0006
Fax 503-722-8540
www.fairweathertree.com
info@fairweathertree.com 

Services Provided:

  • Pruning and cabling
  • Climbing and removal
  • Log milling and treehouse construction
  • Insect and disease control
  • Tree protection and construction mitigation
  • Defensible space operations
  • Fertilization

Kevin Hillery
Whole Tree Works Inc.
1839 SE 49th
Portland, OR 97215
Tel 503-238-6077
www.wholetreeworks.com
khillery@comcast.net

Kevin Hillery is the owner/operator of Whole Tree Works, Inc., a small company dedicated to tree preservation and management, pruning, hazard tree assessment, and teaching. As an arborist for over twenty years, he has had the opportunity to work with hundreds of private homeowners as well as Portland's Japanese and Chinese Gardens, Berry Botanic Garden, and multiple public parks. Other tree-related assignments have involved assistance with forest canopy research in Oregon, Washington, Canada, and Costa Rica.

Services Provided:

  • Tree preservation and management
  • Pruning
  • Hazard tree assessment
  • Teaching

Thomas Jazwinski, Member of PNW-ISA
Badger Tree Service,Inc.
30295 N.W. Evergreen Rd.
Hillsboro, OR 97124
Tel 503-648-7445
Cell 503-701-6169
info@badgertreeservice.com
www.badgertreeservice.com/door/

Services Provided:

  • Ornamental pruning
  • Topiary & bonsai
  • Shrubs & hedges
  • Tree injections for disease and insect control
  • Lot & view clearing
  • Removals & stumps
  • Cabling & bracing

John Landon, Member of ISA, PNW-ISA, TCIA accredited member
General Tree Service
PO Box 2049
Clackamas, OR 97015
Tel 503-656-2656
Fax 503-656-3219
customerservice@generaltree.com

General Tree Service has been providing quality care for Northwest landscapes since 1924. With 16 ISA certified arborists on staff, General Tree Service has the experience and knowledge to meet any landscape care need.

Services Provided:

  • Pruning of trees and shrubs
  • Tree removal
  • Plant health care programs
  • Lawn fertilization programs
  • Fertilization of trees and shrubs
  • Holiday lighting

Jim Meyers, Member of ISA, PNW-ISA
Hedgehog Tree Care
920 SE 69th Ave.
Portland, OR 97215
503-239-1074
www.hedgehogtree.com
jmeyers@hedgehogtree.com

Hedgehog Tree Care is a small tree firm servicing the Portland metro area. Owned and operated by skilled tree man and certified arborist Jim Meyers, Hedgehog is a referral-based business dedicated to quality workmanship and customer satisfaction. Honest, hardworking, friendly and knowledgeable, Jim Meyers has been dirtying his nails in this business for his whole life. Juggling a full workload, Jim studied and became a certified arborist with the International Society of Arboriculture and has remained active in continuing education. Today Jim works hard to keep the business small because he feels it is the only way to provide the level of customer satisfaction he desires.

Services Provided:

  • Quality ornamental and shade tree pruning
  • Skilled tree removal
  • Chipping and stump grinding
  • Tree selection
  • Consultation and arborist reports

Damon Schrosk, ISA Certified Arborist PN5474A, ISA Certified Tree Risk Assessor 171
Treecology, Inc.
23506 S Bonney Rd.
Colton, OR 97017
Tel 503-804-7868
www.treecology.com
tree@treecology.com

Treecology is dedicated to providing the highest level of professional tree care, consulting, ecological restoration, and habitat enhancement services. Each of its arborists is ISA certified and the company is committed to safety, education and, of course, plant health.

Services Provided:

  • Fine pruning
  • Preservation
  • Removals & stump grinding
  • Arborist reports
  • Inventory and management plans
  • Tree risk assessments
  • Pre-construction consulting
  • Ecological restoration/habitat enhancement

Jeff Spisla, Member of ISA, PNW-ISA, TCIA
Arborists NW Inc.
4000 SE 82nd Ave. Ste 1000 No. 203
Portland, OR 97266
Tel 503-761-1944
Fax 503-761-6671 Please inform Arborists NW Inc. before sending faxes. 

If you'd like to share information about one of our Arborist Partners or another arborist, please write us at terir@friendsoftrees.org.

Tips for Selecting an Arborist

Provided by the PNW-ISA

1. Hire someone who is bonded, licensed and insured.

2. Ask for references and get more than one bid.

3. Ask for a Certified Arborist, someone who has passed the International Society of Arboriculture's extensive certification exam covering all aspects of tree care.

4. Membership in professional organizations such as the International Society of Arboriculture (ISA), the National Arborist Association (NAA) or the American Society of Consulting Arborists (ASCA) demonstrates a willingness on the part of the arborist to stay up-to-date on the latest techniques and information.

6. A good arborist won't recommend topping and should try to talk you out of it if you request to have a tree topped.

7. Never allow a climber to use spikes or spurs to climb your tree unless the tree is to be removed.