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West Valley Arborists, Inc. is an urban tree care specialist that serves corporate, commercial and residential clients in Santa Clara County. Its many tree services include arborist reports, fine pruning and shaping, tree and stump removal, planting, fertilization, cabling and bracing, and consultation. The company also offers 24-hour emergency response for its customers’ convenience.
Owner Simon Tunnicliffe has been involved in the arboriculture industry for more than 35 years, starting in his native England and working with influential companies in France, Germany, and Australia. “I began as a groundsman,” he says, “then worked my way to becoming a specialized climber, foreman, and operations and sales manager.” Simon moved to the United States in 1994 and founded West Valley Arborists in 2005.
West Valley Arborists operates under industry-best standards set forth by the Tree Care Industry Association (TCIA) and International Society of Arboriculture (ISA). The company also specializes in removing overgrown or hazardous trees in difficult locations.
Rated Highest in Quality and Helpful Expertise PERFORMANCEGUARANTEED
Company Credentials
- Liability Insurance
- Business Practices
- Current Complaint File
- Workers Compensation
- License Verification
- Legal & Finance
Diamond Certified Company Report SUMMARY UPDATE July 2025
Quick Summary
- Diamond Certified since 2010
- Provides various tree services for corporate, commercial and residential clients in Santa Clara County
- International Society of Arboriculture (ISA) Certified Arborist on staff
- Available 24/7 to handle emergencies
Top News Updated
COMPANY MILESTONES
West Valley Arborists, Inc. is celebrating its 20th anniversary in 2025.
Top Survey Responses
From a recent Diamond Certified Survey Response: “They’re amazing and I highly recommend them. They’re always on time and they do what they say they’re going to do. The owner is knowledgeable, pleasant and organized.”
From a recent Diamond Certified Survey Response: “They’re very responsive [and they] do a great job at pruning my trees and cleaning up. The office staff and the workers are terrific.”
Trending Projects
West Valley Arborists, Inc. recently completed a tree removal project at a home in Sunnyvale. The client was impressed by the company’s ability to quickly deal with her “problem tree,” noting that the technicians were pleasant and hardworking throughout the entire process.
West Valley Arborists, Inc.
Diamond Certified Video Reports on West Valley Arborists, Inc.
West Valley Arborists, Inc. - Diamond Certified Video Profile
Diamond Certified Researched Articles on West Valley Arborists, Inc.
A West Valley Arborists technician works on a customer’s tree from an aerial lift.
Diamond Certified Researched Capabilities on West Valley Arborists, Inc.
Service Area
Main Services
- Crown Lifting
- Land Clearing
- Shrub Trimming
- Stump Grinding
- Stump Removal
- Tree Care
- Tree Cutting
- Tree Maintenance
- Tree Pruning
- Tree Removal
- Tree Root Removal
- Tree Trimming
Additional Services
Company Info
Hours
Closed
Contact
Capabilities Table
Company Name
West Valley Arborists, Inc.Managers
Years in Industry
35+ (Manager)# of Employees
14License
892956Memberships
ISA, Tree Care Industry Association (TCIA)Founded
2005Payment Accepted
Key Factors
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Diamond Certified Expert Contributor Advice & Tips
Simon Tunnicliffe is a veteran of the tree service industry and owner of West Valley Arborists, Inc., a Diamond Certified company since 2010. He can be reached at (408) 827-8933 or by email.
Simon Tunnicliffe: Outdoor Ambition
By James Florence, Diamond Certified Resource Reporter
CAMPBELL — As a young man, Simon Tunnicliffe thought he might enjoy working in an office setting, but he soon realized he preferred an outdoor workspace. “When I was a teenager, the real estate market was really booming in my home country of England, so I thought about pursuing a career in the industry,” he recounts. “I enrolled in a work experience program, where I spent one day a week working in a real estate office. It didn’t take ...
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West Valley Arborists, Inc. Ratings and Survey Responses (reviews)
Rated Highest in Quality and Helpful Expertise PERFORMANCEGUARANTEED
