• 1974


    Kaiser Tree Preservation is founded by Herb Kaiser.

  • 1978

    First Bucket Truck

    First Skywalker bucket truck is purchased.


  • 1984

    Gypsy Moth Control

    Gypsy Moth Caterpillar
    Kaiser Tree Preservation leads the way in gypsy moth control, helping preserve thousands of trees in RI.

  • 1986

    Nurseryman President

    Herb Kaiser is named President of the Rhode Island Nurseryman and Landscape Association.


  • 1999

    Tub Grinder

    Kaiser Tree Preservation purchases a tub grinder, marking the beginning of their wood chip recycling operation.

  • 2002

    Ames Kaiser Joins

    Herb Kaiser’s son, Ames Kaiser, joins the company assisting in management and development of the company.


  • 2003

    Machinery Upgrades

    bucket truck
    Kaiser Tree Preservation begins heavily reinvesting in equipment, adding machines and upgrading machines, allowing them to operate in a safer, more efficient manner.

  • 2005

    Second Crew

    Kaiser Tree Preservation expands to a second crew of arborists and adds new equipment.


  • 2006

    Firewood and Mulch Expansion

    Kaiser Tree Preservation purchases a large facility to operate from and expands its manufacturing of firewood and mulch.

  • 2006

    Arbor Care Program


    Kaiser Tree Preservation launches its complete Plant Healthcare Program, now known as “Arbor Care.”


  • 2007

    Aerial Lift Purchase

    Kaiser Tree Preservation purchases a state-of-the-art 75′ aerial lift, with another to follow in 2011.

  • 2008

    Ocean State Tick Control

    Kaiser Tree Preservation forms a subsidiary company, Ocean State Tick Control, specializing in Deer Tick Control and Mosquito Control.


  • 2011

    Storm Recoveries

    Kaiser Tree Preservation effectively services hundreds of home owners in need of emergency service from Hurricane Irene and Sandy as well as winter storm Nemo.

  • 2016

    Gypsy Moth

    Gypsy Moth Caterpillar
    Epidemic of 2016, 2017


  • 2018

    Eighth IPM truck added to fleet

    The addition of Kaiser Tree Preservation’s eighth Integrated Pest Management (IPM) truck to the fleet, further solidifying their position as Rhode Island’s leader in Plant Health Care.

  • 2019

    Deer Repellent

    Kaiser Tree Preservation adds Deer Repellent services.


Thanks for another project with excellent service.

I wanted you to know how pleased I am with the service your company provided me. Today, good service is hard to come by and it’s nice to know companies like yours still consider the customer’s satisfaction first. Your crew was very professional and courteous. They treated each other with respect and had nothing but good things to say about working for your company. Last year I received the same service from your company when I had several trees removed. This consistency is a testimony to your company’s great reputation.

Thank you again