Why Hire an ISA Certified Arborist?
Proper tree care is an investment which can lead to substantial returns. Well cared for trees are not only
attractive but will also add value to your property, while poorly maintained trees end up being a liability.
What is an arborist? An arborist is a professional who is trained in the art and science of planting, caring
for, and maintaining trees.
Knowing when and how to hire an arborist is an important decision for property owners. The International Society
of Arboriculture (ISA) offers the following tips to help make an informed decision:
When to Hire an Arborist
There are a variety of services an arborist can provide to help you maintain your investment.
Tree Pruning - An arborist can determine what type of pruning is best for the individual tree to maintain its
health and to improve its appearance and safety. If pruning requires leaving the ground, hire a trained
professional. Also, pruning with a chainsaw is dangerous and it should never be used above the head or while on a
ladder. Hire an arborist who can skillfully prune the tree safely using the proper equipment.
Tree Removal - Arborists can help determine whether or not a tree should be removed, though usually this is a
last resort. Arborists have the skills and equipment to safely and efficiently remove trees. Tree removal is
dangerous and should be done by a professional.
Emergency Tree Care - Storms can cause major damage to limbs or entire trees which can result in damage to other
property. These trees need to be removed or trimmed to lessen the long-term damage to the tree and surrounding
property. This is dangerous work and an arborist should be hired to perform this job safely.
Planting - Planting the right tree in the right place is important for the long term health of the tree.
Arborists can recommend the appropriate tree for the desired location, and assist in proper planting.
There are many other services that arborist provide when necessary such as fertilization, insect control,
cabling, aeration, and lightning protection. Consulting with an arborist and establishing a plant health care plan
will help determine when these services are necessary. Money spent on hiring an arborist is well worth it. "Many
tree care services can be dangerous and paying a professional may cost you less than a trip to the emergency room,"
states Eric Duchinsky, ISA Director of Membership and Public Relations.
How to find a qualified arborist
When searching for a tree care company, there are several things to look for before making a selection.
Certification - Ask if the arborists on staff hold an ISA certification, and/or a state-issued professional
arborist license*. ISA offers a range of certification credentials from Certified Tree Worker/Climber Specialist to
Board Certified Master Arborist. To be certified individuals must pass a voluntary comprehensive exam.
Certification must be maintained through continuing education, which means they should be up-to-date on the latest
in arboricultural technology and are knowledgeable of acceptable practices. (*Not all states require licensing, so
please be sure to verify your state's requirements.)
Professional Affiliation - Ask about membership in professional organizations such as the International Society
of Arboriculture (ISA). Affiliation with industry organizations demonstrates a willingness to stay up-to-date on
the latest techniques and information.
Insurance - Ask for proof of insurance and then verify coverage with the insurance company. A reputable arborist
should have insurance to cover personal and property damage. If you hire an uninsured tree expert, you can be held
liable for any damages or injuries that occur while they are on the job.
References - Ask for references from past customers and do not hesitate to check them, or to visit the locations
where the company or individual has done tree care work.
Estimates - Do not be afraid to ask for an estimate, and it is ok to get more than one estimate. You should not
always select the lowest bid. When examining the bids, you should look at all specifications and credentials, and
the work to be done to determine which company will provide the best service with the skill and professionalism
needed to protect your investment. And most importantly get it in writing. Most reputable arborist will have the
customer sign a contract so be sure to review it and do not be afraid to ask questions