Independently Rated Highest in Quality
T h i r d                              Consecutive Year        
Originally Earned:
March 2008
We declare that Best Tree Service HAS QUALIFIED for and continues to meet the Ongoing Research and Rating Requirements for Diamond Certified® status.
Certificate #1315
(510) 747-8986
(925) 386-6983
6202 Truckee Court
Newark, CA 94560

Best Tree Service has been reshaping Bay Area clients’ landscapes since 1987. Owner Gary Gilliam is a Certified Arborist and considers his trade an art form, with trees as his palette and the landscape as his canvas. He uses his decades of industry experience and a natural eye for artistry to enhance trees’ natural beauty and architecture through meticulous pruning and care. “I enjoy the challenge of repairing wildly overgrown or poorly pruned trees,” he says, “and I continually amaze clients who never realized how beautiful their trees could look.”

Mr. Gilliam does all his own trimming, because it keeps his overhead costs low and lets him pass the savings on to his clients. He’s happy to consult with customers, make recommendations and work to completely transform their treescapes.

Best Tree Service can also diagnose and treat ailing trees and remove trees and stumps. Its crew members are easygoing and friendly, says Mr. Gilliam. They show up on time and work quickly, and take conscientious care to protect any flowers, plants and wildlife on a client’s property. The company also offers 24-hour emergency service.

Company Philosophy

“I love what I do, and it shows in the enthusiasm with which I approach every job. My goal is to beautify a customer’s property in a way that suits their personality and sense of style; to create a beautiful, peaceful environment that’s a joy to come home to.”

Serving the East Bay, Peninsula and Tri-Valley Area

Fine Garden Pruning
Tree Diagnosis & Treatment
Tree & Stump Removal
Tree Trimming
Treescape Consulting

Comparative Summary

Best Tree Service owner Gary Gilliam takes pride in being “an expert in the art of creating beautiful and healthy trees.” As a certified arborist with 25 years’ experience, he can train his skilled eye on a garden or treescape and see its native potential. Mr. Gilliam describes his method as “soaking up the atmosphere” of a house or garden, then incorporating what...

Frequently Asked Questions

Q: Who does the actual work at Best Tree Service?
A: "With my company, I do the estimating and the pruning, so you get exactly what you want. Often, other tree service companies will come out, do the estimate and go over the nuances of what the client wants. Then they send an entirely different...
Q: Will my house and plants be safe?
A: "Yes. I’m on site for the entire job, and I make sure everything is very conscientiously done."
Q: Do you have a particular specialty?
A: "Our forte is pruning and tree beautification; that’s what we’re most known for. We also diagnose sick trees and perform treatments and tree removal."

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Industry Info

Remember, tree surgery is forever.
Many tree services advertise themselves as “certified arborists,” but that’s not necessarily sufficient if the arborist doesn’t actually perform the pruning, says Gary Gilliam of Best Tree Service. The distinction is...
Findings based on statistically reliable research from 150 surveys

Customer Satisfaction

Survey Question: On a scale of 1 to 10 how satisfied were you with the quality you received?
Chart.

Company Credentials

Workers Compensation
Liability Insurance
License Verification
Business Practices
Current Complaint File

Customer Loyalty

Survey Question: If you needed this product or service in the future, would you use this company again?
Chart.
92%
n = 150

Diamond Certified Qualification

Based on 150 customer surveys, we declare
Best Tree Service
has passed all rating steps and has earned
The Diamond Certified Award
No. 1315
Continuously qualified since March 2008.
David Pak
Director of Ratings Research
American Ratings Corporation

Verbatim Survey Responses From Only Verified Customers

"The certified arborist is the one doing the cutting and the fact that he is certified."

–G. N.

"The overall price."

–Bonnie
Research conducted by American Ratings Corporation. Ratings Methodology

Company Capabilities Table

Best Tree Service
6202 Truckee Court
Newark, CA 94560
(510) 747-8986
(925) 386-6983
(650) 530-0974
(408) 782-4952
DCID5107906422
DCID9252485077
DCID6503222102
DCID4084379600

Sun - Sat: 7am - 10pm 24-hour Emergency Service

Serving the East Bay, Peninsula and Tri-Valley Area

Gary Gilliam
7
Certified Arborist
703538
Liability Insurance, Worker's Compensation
Better Business Bureau, International Society of Aboriculture
1987
Fine Garden Pruning, Tree Diagnosis and Treatment, Tree and Stump Removal, Tree Trimming, Treescape Consulting
25