Sims Tree Health Specialists, Inc.
 951-685-6662  Scheduler@simstlc.com

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About Sims Tree Health Specialists, Inc.
Dedicated to preservation,
Since the opening of Sims Tree Health Specialists, Inc. in 1972, Gary and Susan Sims have dedicated their lives to providing premium health care services for trees. Along with their son, Kevin, the Sims family have become highly respected and appreciated in the green industry.

Education,
The Sims family have not only become known for their quality tree health services, but also as educators. In 1996, the Sims family started the Sims Tree Learning Center. A 6 Acre Botanical Gardens and research facility sponsored by Sims tree Health Specialists, Inc. The gardens house multiple types of gardens including a cactus and succulent garden, an English garden, and one of the largest collections of Palms in the Inland Empire. Sims TLC is also home to a variety of animals including Percheron draft horses, reptiles, and birds. Educational tours are free of charge and are open to the public by appointment. Adult and youth education seminars and workshops are hosted in the antique museum.  With the museum being filled with antique cars, biological samples, and antique tools, it is nearly impossible to walk out of Sims TLC without learning something new. To learn more about Sims TLC, please click here!

​Improved health and safety of trees. 
As with the human health industry, constant new developments and discoveries are made about the health of trees. The arborists and technicians of Sims THS are constantly attending seminars and workshops to keep up on the latest treatments available. You can feel confident knowing that you are receiving the latest information on any new treatments, pest, or disease affecting your area or species of tree.  


Meet your technicians!
Robert Montgomery
AKA Monty
ISA Cert. Arborist:
 #WC-0730A
Structural Applicator:
#RA-48927
Qualified Applicator:
#QAL-118266
Been with Sims since:
1989

Dale Bugos
ISA Cert. Arborist:
#WE-4234A
Structural Applicator:
#RA-8710
Qualified Applicator:
#QAL-103991
Been with Sims since:
1994
ISA Tree Risk Assessment Qualification

Kevin Sims
ISA Cert. Arborist
#WE-8449A
Structural Applicator:
#RA-53660
Qualified Applicator: 
#QAL-126900
Been with Sims since:
2002
ISA Tree Risk Assessment Qualification

Graduated from 
Missouri School of
Auctioneering
Brandon Watts
ISA Cert. Arborist
WE-10236A
Structural Applicator:
#RA-53619
Qualified Applicator: 
#QAL-129318
Been with Sims since:
2005
Biologist
ISA Tree Risk Assessment
Qualification
Susan Sims
ISA Board Cert. Master Arborist:
 #WE-0286B
Ca. Lic. Ag. Advisor:
#70095
Ca. Lic. Ag. Applicator:
#QL-97257
Curriculum Vitae
Click Here
ISA Tree Risk Assessment Qualification
Gary Sims
ISA Cert. Arborist:
 #WC-1211
CA Lic. Ag. Advisor:
#6491
Structural Operator:
#OA-7727

Ken McCormick
ISA Cert. Arborist
WE-1739A
Structural Applicator:
#RA-55538
Qualified Applicator: 
#QAL-132967
Been with Sims since:
2011
ISA Tree Risk Assessment
Qualification
.