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TRUSTED BY HARRISON, NY HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.3k+
    Verified arboricultural services reviews

Top-Rated Arborists in Harrison - Updated Nov 2026

Avatar for Emerald Tree & Shrub Care LLC
Emerald Tree & Shrub Care LLC
4.8(
25
)
Tree TrimmingTree RemovalTree Removal - For Business+5 more

Serving Harrison, NY and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Excellent. the back to back Nor'easters pummeled Westchester and all the tree services were backed up....Bill Demarest's team got to us quickly, assessed the risks of our partially downed tree and planned the work accordingly. they did a great job, neat, professional, took a lot of care in protecting the surrounding areas as they took down a very big sugar maple and removed a huge branch from that tree that fell in my side yard. They are great!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

6 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for RJR Tree Services LLC
RJR Tree Services LLC
4.8(
31
)
Tree RemovalTree Stump - RemoveTree Removal - For Business+2 more

Serving Harrison, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Offers commercial services

"RJR understood the project and what we were looking to accomplish. Rosalio did a thorough walk through with me. He knew the situation we were in with the Spotted Lantern Flies that were feeding on the Athlantus trees in our yard. He made great suggestions from an arborist perspective and worked out a fair estimate for all the different aspects of the job. RJR and crew went right to work immediately and didnâ t stop. They work fast and are completely careful and respectful of the property. The clean up was like nothing took place that day. Every scrap of wood, leaves and branches were removed. I highly recommend RJR for projects that need a specific consideration."
Remove trees,
Remove trees,
Remove trees,
Remove trees,
Remove trees,

+64

Response time3 hrs
Response rate93%
18 neighbors recently requested a quote
Avatar for SavATree - Mamaroneck
SavATree - Mamaroneck
4.3(
56
)
Tree RemovalTree TrimmingTrees and Shrubs - Trim or Remove

Serving Harrison, NY and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"The SavaTree team was really fantastic, from start to finish! Ross was really helpful in evaluating our trees and suggesting treatments, and was on site multiple times on the day of tree removal. Ours was particularly tricky as we're in a townhouse, and the tree had to removed from our back garden through the house. Johnny, Manny and Jose were a great team, really efficient and very neat, cleaning up our basement once they had completed the tree removal. We'll absolutely work with them again soon!"
Recommended by83%of homeowners
Avatar for Almstead Tree & Shrub Care Co., LLC
Almstead Tree & Shrub Care Co., LLC
4.1(
41
)
Tree RemovalTree Stump - RemoveTree Trimming+1 more

Serving Harrison, NY and surrounding areas

Approved

In business since 1964

Free estimates

Emergency services offered

"Almstead did an outstanding job. Nick the arborist I worked with was a pleasure and was very knowledgeable and patient. He asked me questions at the outset about what I wanted done and how I visualized the finished job. He gave me lots of choices and I selected the ones I wanted. I received an estimate and time frame and the job was completed on time and on budget. To clarify we were replacing all the foundation plantings. My family and I are So pleased and highly recommend Nick and Almstead."
Pruning
Pruning
Hand Pruning
Up, Up and Away
Examining Leaf for Insects and Disease

+8

Response time2 days
1 neighbors recently requested a quote
Recommended by97%of homeowners
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Arborists FAQs, answered by experts

Dutch elm disease can’t harm humans. In fact, according to Cal Fire, bark beetles aren’t even typically dangerous to trees unless that tree is already weakened. The problem comes when Dutch elm disease kills a tree. That tree is more at risk of falling and catching fire, which can pose a serious threat.

If you’re looking to rot a tree stump fast, potassium nitrate will work far quicker than copper nails. First, drill several holes into the stump using a power drill, then pour potassium nitrate pellets into the holes. Next, add water to help the chemical absorb into the wood, thoroughly soaking the stump to ensure the pellets dissolve and spread evenly. Afterward, cover the stump with a tarp to retain moisture and block sunlight, then place mulch on top to secure it in place.

Common signs that a tree is rotting include dead branches, a leaning trunk, peeling or cracked bark, leaf discoloration, and the presence of fungi. If you notice any of these signs, it’s best to hire an arborist near you to inspect your tree and determine if it can be saved or if it needs to come down.

You can hire a professional arborist or tree removal service to cut down a tree to ensure safety, prevent property damage, and comply with all the local regulations. It’s highly advisable to always hire a professional, as tree removal can be extremely dangerous, especially for large or damaged trees. Certified arborists or tree removal experts have the proper equipment, training, and insurance to do the job safely and efficiently. They can also handle cleanup, stump removal, and obtaining the necessary permits.

Ensures complete removal and mitigates risks of underground root damage.

The Harrison, NY homeowners’ guide to arboricultural services

From average costs to expert advice, get all the answers you need to get your job done.