What Is an Arborist?

Training and Certification

Arborists aren’t just people who know how to swing a chainsaw. Many of us go through years of training and hands-on work to understand how trees grow, how they respond to stress, and how to keep them safe and healthy.

Some arborists pursue certification through organizations like the International Society of Arboriculture (ISA). Becoming ISA Certified means passing a series of exams that cover everything from pruning techniques and pest management to soil science and tree biology. Certification also requires continuing education, so arborists stay current with the latest research and safety standards.

Even without certification, a true arborist spends countless hours learning to “read” trees—spotting early signs of disease, knowing how to prune for strength rather than just shape, and understanding which species thrive in New England climates.

What Arborists Actually Do

The work of an arborist goes beyond cutting branches. Day to day, we might be diagnosing tree diseases, planning pruning schedules, or removing hazardous limbs before they fall. We inspect root systems, identify pests, and sometimes climb 50 feet in the air to remove a branch by hand.

One of the biggest roles of an arborist is advising homeowners. People often call me out to look at a tree they’re worried about, not sure whether it needs pruning, treatment, or removal. An arborist can give clear answers based on science and experience. That guidance helps homeowners make the right decision for safety, budget, and long-term tree health.

Safety Above All

Tree work is one of the most dangerous professions out there. Arborists are trained to work safely in situations that most people would never attempt on their own. That includes climbing trees with ropes and harnesses, operating chainsaws overhead, and working near power lines.

Because of this, arborists follow strict safety practices. We use helmets, protective gear, and specialized equipment designed to keep both the crew and the property safe. When you hire someone who identifies as an arborist, you’re choosing a professional who understands the risks and knows how to manage them.

Why It Matters for Homeowners

So why should you care whether the person you hire is an arborist? The answer comes down to results. A landscaper might be able to trim a tree to make it look neat, but without the right knowledge, they could cut too much or in the wrong place, leaving the tree vulnerable to pests or structural failure.

An arborist knows how to make cuts that encourage healthy growth. They understand how to reduce the weight of heavy branches without creating weak spots. They can spot diseases early and recommend treatments before the tree declines. In short, arborists don’t just make trees look good for now—they help them thrive for years to come.

A Local Example

Not long ago, a homeowner in the Ayers Village section of Haverhill called me about a large oak that had started dropping branches. A landscaper had suggested removing it entirely, but the family wasn’t ready to lose the shade that tree provided. When I looked closer, I saw that only certain limbs were diseased while the rest of the tree was strong and healthy.

By carefully pruning the affected branches and treating the soil, we were able to save the oak. Years later, it’s still standing tall. That’s the difference an arborist can make—knowing when to preserve and when removal is truly the safer choice.

Arborists vs. Tree Cutters

There’s a saying in the industry: anyone with a chainsaw can cut down a tree, but it takes an arborist to care for one. That doesn’t mean there’s anything wrong with a basic tree removal service—sometimes, that’s all you need. But if you want to protect the long-term health of your property, an arborist is the professional to call.

Think about it like this: if you had a health concern, you wouldn’t go straight to surgery without first consulting a doctor. You’d want a professional to examine the issue, explain your options, and recommend the best course of action. That’s exactly what an arborist does for trees.

The Community Connection

One of the things I love most about being an arborist is building relationships in the community. Trees aren’t just plants in the yard—they’re part of our shared landscape. The big maples lining Main Street, the oaks shading backyards in Riverside, the pines along Kenoza Lake—they all contribute to the character of Haverhill.

When arborists do our job well, we’re not only helping individual homeowners. We’re preserving the health and safety of the community’s green spaces. That’s something I take a lot of pride in.

So, what is an arborist? In simple terms, it’s a tree care professional trained to understand, maintain, and protect trees. Arborists bring knowledge, safety, and experience to the job, helping homeowners make smart decisions about their landscapes.

Whether it’s pruning for better growth, diagnosing a disease, or safely removing a hazardous tree, an arborist approaches the work with care and expertise. Around Haverhill, that means healthier trees, safer neighborhoods, and yards that stay beautiful for years to come.

If you ever find yourself unsure about a tree on your property, that’s the time to call an arborist. We’re here not just to cut, but to care.