Pestmaster Services
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Our Team

Jeffrey M. Van Diepen, President, CEO, MBA

Jeff Van Diepen

Mr. Van Diepen founded Pestmaster® Services in 1979 in the small Eastern Sierra town of Bishop, CA. He held a vision of providing the most effective pest management services possible, while maintaining an earnest concern for our environment and safety. Over the past three decades, he has transformed his small, local business into a national leader with locations coast to coast.

He is a government contracts specialist, GSA contract holder, and a mentor and coach for developing franchisees. He works with state and federal governments to develop economical and cost saving pest and vegetation management programs. Since 2004, Mr. Van Diepen has provided IPM training to the Department of Pesticide Regulation and authored numerous IPM programs for military installations. As an IPM trainer for the Los Angeles Unified School District, he contributes to steering pesticide use decisions on behalf of 1,100 schools representing millions of children.

Mr. Van Diepen is an expert in the control of invasive pests in riparian and aquatic ecosystems and has served as an expert witness for pesticide related legal matters. His extensive experience in pest and vegetation management programs continue to benefit large corporate and government accounts, including utility and railway companies and school districts.

Mr. Van Diepen holds an MBA from Pepperdine University, is a member of the National Pest Management Association, International Franchise Association, Aircraft Owners & Pilots Association, Professional Association of Pesticide Applicators, and the Los Angeles Unified School District's IPM Board. Mr. Van Diepen is a consultant for the Society of Industry Leaders and the Centers for Disease Control. He holds various structural and agricultural pest control licenses in the states of: Arizona, California, Florida, Idaho, Nevada, and Washington.

Jacque Lechler Administrative and Sales Manager

Jacque Lechler

Jacque Lechler has over a decade of experience with administrative and customer relations. At Pestmaster® Services her responsibilities include assisting in sales efforts, marketing, and the review of performance of the current franchisees. In addition she assists in computing and tracking the financials for current franchisees as well as assisting franchisees with any of their administrative needs. 

Prior to Pestmaster® Services, Mrs. Lechler was a financial advisor for Edward Jones where she learned her extensive sales and people skills. Mrs. Lechler uses the knowledge she gained there in her processes for obtaining interested franchise prospects and following up with them in her everyday career with Pestmaster®

Mrs. Lechler's current skills encompasses sales and the sales process, internet marketing and social media, as well as developing deep relationship with franchise prospects which she looks to turn into long-term business relationships. 


Chuck Jehle, Business Development & Contracts Manager

Chuck Jehle

Chuck Jehle has over 25 years experience in working with small businesses in the roles of Sales, Marketing and Management. His recent experience includes assisting clients with government contract sales by attaining various levels of SBA status including 8(a), certified small business, veteran business, women's business, and HUBZone.

Mr. Jehle was introduced to entrepreneurship early in his business career. After receiving his Bachelor of Science degree in Marketing he entered the business world as Vice President and co-owner of Sea Quest, Inc. He helped build this sporting goods manufacturer from concept assisting in all areas of its rapid growth over a 10-year period.

Mr. Jehle's current skills encompasses contract sales, internet marketing and social media, as well as developing lowcost 'guerilla marketing' methods to retain satisfied customers and increase sales.


Jerry Hatch Operations and Sales Manager 

Jerry Hatch

Jerry Hatch is Pestmaster's® Board Certified Entomologist with decades of Environmental Health Experience with a focus on public health and pest management. He works with clients to resolve various environmental and pest issues while protecting their health and property. Mr., Hatch and his team at Pestmaster® Services make sure to pay particular attention to the fundamental use of low impact products and provide solution based services. 

Mr. Hatch's specialties include consultation and training on Environmental Health and pest control issues such as Integrated Pest Management. In addition to being a board certified entomologist Mr. Hatch is also a certified Environmental Health Specialist, Certified professional in food safety and a certified LEED green associate. 



Stuart Mitchell

Stuart Mitchell is an observing physician who is Board Certified in Family Medicine, Board Certified and a Fellow of Integrative Medicine, Diplomate of the American Board of Forensic Examiners, and a Certified Medical Investigator. In addition, he is an entomologist and is Board Certified in Urban, Industrial, Medical, and Veterinary. In addition, he holds PhD's in Biology, Entomology, and Zoology and has been in the pest management industry since 1982.  He has served as a technical specialist, technical director, consultant, expert-witness, columnist, author, lecturer, speaker, Board Certified Entomologist Program Director in 2009, and technical director of the National Pest Management Association.

Currently, Dr. Mitchell serves as principal technical specialist for PestWest Environmental, Sarasota, FL. In addition, he serves as a technical consultant and trainer for Pestmaster® Services, Bishop, CA.

If you have a challenging pest management issue, Pestmaster® Services team of highly trained pest management professionals can both diagnose and solve your problem in an environmentally friendly manner. If you have a technical question or require technical support, Dr. Mitchell is available to assist.