30 Years 1995–2025

Why Hire a Certified Arborist?

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Certified Arborists specialize in the care of individual trees. They are knowledgeable about the needs of trees and are trained and equipped to provide proper care. Hiring a certified arborist is a decision that should not be taken lightly. Proper tree care is an investment that can lead to substantial returns. Well cared-for trees are attractive and can add considerable value to your property. Poorly maintained trees can be a significant liability. Pruning or removing trees, especially large trees, can be dangerous work. Tree work should be done only by those trained and equipped to work safely in trees.

Services That Arborists Can Provide

Pruning

An arborist can determine the type of pruning necessary to maintain or improve the health, appearance, and safety of trees. Pruning techniques include removing limbs that:

  • interfere with utilities or structures
  • obstruct streets or sidewalks
  • are dead, weak, or decayed and pose unacceptable risk
  • are diseased or insect-infested
  • have been damaged by storms
  • will increase light penetration and reduce wind resistance within the canopy upon removal (thinning)

Other pruning techniques are used to maintain proper structure in young trees, improve tree shape or form, and reduce the likelihood of future damage during storm events.

Tree Removal

Although tree removal is a last resort, there are circumstances when it is necessary. An arborist can help decide whether a tree should be removed. Removal is recommended when the tree is:

  • dead or dying
  • considered an unacceptable risk
  • causing an obstruction that is impossible to correct through pruning
  • crowding and causing harm to other, more desirable trees
  • to be replaced by a more suitable specimen
  • located in an area where new construction requires removal Emergency

Tree Care Storms may cause limbs or entire trees to fall, often landing on other trees, structures, or cars. The weight of storm-damaged trees is great, and they can be dangerous to remove or trim. An arborist can assist in performing the job in a safe manner, while reducing further risk of damage to property.

Planting

Some arborists plant trees, and most can recommend species that are appropriate for a particular location. The wrong tree in the wrong location will lead to future problems as a result of limited growing space, insects, diseases, or poor growth.

Other Services

Many arborists also provide a variety of other tree care services, including:

  • Plant Health Care or preventive maintenance to keep trees in good health while reducing any insect, disease, or site problems
  • fertilization and soil modification for improved tree health
  • cabling or bracing for added support to branches with weak attachments
  • soil aeration to improve root growth
  • installation of lightning protection systems
  • applications to manage certain insect and disease problems
  • consulting and legal expert services relating to trees

The certified arborists at Design Tree Maintenance have the knowledge, skill, experience and the tools needed to handle every aspect of arboriculture. Additionally, we are directly affiliated with the International Society of Arboriculture (ISA), Western Chapter ISA, Arizona Community Tree Council (ACTC) and The Better Business Bureau.

Robert L. Kett

Robert L. Kett is the founder and Senior Certified Arborist at Design Tree Maintenance, a family-owned tree care company serving the Valley since 1995. With over 30 years of experience in holistic tree and plant health management, Robert specializes in tree pruning, removal, fertilization, and irrigation solutions tailored to residential and commercial landscapes. He is a long-time affiliate of the International Society of Arboriculture and the Western Chapter ISA, and under his leadership, Design Tree Maintenance has earned multiple BBB Ethics Awards and consistently high ratings on HomeAdvisor and Angi.

Arborist Services

Tree Trimming in Phoenix, AZ

Tree Trimming In Phoenix, AZ

Tree Trimming in Phoenix, AZ
Tree Fertilization & Treatments in Phoenix, AZ

Tree Fertilization & Treatments

Tree Fertilization & Treatments in Phoenix, AZ
Emergency Tree Services - Storm Damage in Phoenix, AZ

Emergency Tree Services – Storm Damage

Emergency Tree Services – Storm Damage in Phoenix, AZ
Tree Removal in Phoenix, AZ

Tree Removal In Phoenix


Tree Removal in Phoenix, AZ

Tree Planting in Phoenix, AZ

Tree Planting

Tree Planting in Phoenix, AZ
Tree Irrigation in Phoenix, AZ

Tree Irrigation

Tree Irrigation in Phoenix, AZ

Testimonials

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Jennifer Startin profile picture
Jennifer Startin
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We hired Design Tree to install a paver patio in our backyard. Very impressed with the outcome and would highly recommend! Beautiful work and the crew was timely and very polite. The superintendent on our job was great, unfortunately I am forgetting his name. Highly recommend this company!
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K. B.
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My wife and I have been using Design Tree Maintenance for about 6 years now. They've conducted both removals and long term maintenance on three large trees in our backyard. Each visit from them has left us pleased with their work. The process starts with a free onsite quotation (Nick always does our quotes) and on acceptance, the crew is scheduled within about a week or less. This company is full of professionals during all stages of the process. You can get your trees trimmed for less cost, however having trained arborists quoting and conducting the work is worth every penny. Dago and crew always arrive ready to tackle a tough days work. The crew uses modern safety equipment, everyone has helmets and is well trained to use their climbing, rigging, and cutting gear to get the work sorted quickly and safely. The crew lead reviews all planned work prior to starting to ensure the quoting process has communicated everything correctly to the folks doing the laborious work. When everything is wrapped up, the lead once again reviews the work with you to verify you're satisfied. If you want professionals for your project, call these folks.
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Mark Burry profile picture
Mark Burry
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I want to thank Steth and Design Tree Maintenance for doing a great and quick repair on my sprinklers
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Pat Christie profile picture
Pat Christie
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I have been a customer for over 10 years. Everyone in this company is professional and cares about their customers. They do our annual tree trimming and we have had them place a French drain and recently landscape the 2 courtyards at the front of the house. I cannot recommend this company highly enough. They exceed my expectations with everything they do. They are worth every penny I’ve paid them and am excited to have them landscape the remaining front yard and then the back.!
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Linda Moore profile picture
Linda Moore
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Seth and all the guys did a fantastic job with my new irrigation and yard. Left my property immaculate. Thank you Design Tree!
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Call (623) 587-8170 for answers to your tree questions.

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