Consulting Arborist Expert Services to Beautify Your Space

ISA Certified Arborist In Portland

Accredited Landscaping Maintenance and Repair Portland, OR | Certified Arborist

At General Tree Service, we are the arborists that keep the trees of Portland, OR healthy and safe all year round.

To provide you with the highest quality of service, we have several employees who have earned the ISA Certified Arborist credential. In addition to having been trained and knowledgeable in all aspects of arboriculture, they must adhere to a stringent Code of Ethics that strengthens the credibility of the workforce in the tree industry.

In order to be eligible for the exam, they have met one or both of the following:

  • 3 or more years of full-time, eligible, practical work experience in arboriculture
  • Degree in the field of arboriculture, horticulture, landscape architecture, or forestry from a regionally accredited educational institute.

Ongoing education is a priority of all our employees as we strive to deliver the highest quality of tree, shrub, and plant health care throughout Portland, Salem, and SW Washington.

Be sure to check out some of our previous work on our Gallery page.

ISA Board Certified Master Arborist

This is the highest level of certification offered by the ISA and recognizes those arborists who have reached the pinnacle of their profession.

In addition to passing an extensive scenario-based exam, they must abide by a Code of Ethics to ensure their quality of work. Less than two percent of all ISA Certified Arborists currently hold this certification.

Continue Reading Read Less

Are You...

  • In Need of a Service?
  • Looking for a Professional?
  • Tired of Doing-it Yourself?

General Tree Service is here to help you with all these issues and so much more before they become a major issue.

Hear From Our Happy Customers

"Extremely Pleasant"
They were extremely pleasant and easy to talk to and did an excellent job in a very timely manner. I have used General Tree Service for many years, and am always pleased with the quality of their work and with all the people in the company...
- Irene B.

How to Know When It’s Time to Call

When it comes to the trees in your yard, you can never be too careful. It might seem like an easy task, but trees are heavy creatures that aren’t as easy to maneuver as you might think. That is why it is always highly encouraged to have a certified arborist from General Tree Service around.

It doesn’t matter how small the issue might seem at first. If you notice the trees in your yard suffering from an injury or growth problems, do not hesitate to call. There are a few other red flags to watch out for as well.

If your trees experience any number of these symptoms, it is time to call in a certified arborist to come and take a look:

  • Damaged bark
  • Damaged trunk
  • Broken branches
  • The tree is leaning
  • There are mushrooms around the base
Continue Reading Read Less

See Our Work

Recent Projects

Why Choose General Tree Service?

Benefits of Working with an Expert Team
  • Green Products Available
    Keep your space safer by opting for products that are more sustainable and environmentally friendly.
  • Contact Us for a Free Estimate
    We make it easy to get started with a completely free quote.
  • Hablamos Español
    Landscaping services provided by a Spanish-speaking team.
  • Licensed & Insured
    Entrust your landscaping needs to licensed, insured professionals.

Contact General Tree Service Today!

We’re Ready to Help
  • Please enter your first name.
  • Please enter your last name.
  • Please enter your phone number.
    This isn't a valid phone number.
  • Please enter your email address.
    This isn't a valid email address.
  • Please enter your address.
  • Please enter your zip code.
  • Please make a selection.
  • Please enter a message.
  • By submitting, you agree to be contacted about your request & other information using automated technology. Message frequency varies. Msg & data rates may apply. Text STOP to cancel. Acceptable Use Policy