JLS Leadership
John Sheehan
Chief Executive Officer
Bio
John Sheehan is the Chief Executive Officer and Founder of JLS Environmental Services Inc., which he established in 2002. With a clear vision and a deep commitment to quality, John helped build JLS from the ground up—laying the foundation for a company rooted in the core values of being dependable, thoughtful, and solution-focused.
As CEO, John leads the company’s strategic direction, driving innovation, growth, and long-term success. His leadership is marked by a strong focus on integrity, client relationships, and building high-performing teams. With decades of experience in the environmental services industry, John brings a wealth of knowledge and a steady hand to every challenge.
John takes pride in the reputation JLS has earned over the years—for doing things the right way, delivering results, and maintaining strong partnerships. His leadership continues to shape the company’s mission and inspire a culture of accountability, collaboration, and excellence.
Outside of work, John enjoys spending time with his grandkids, camping, and mountain bike riding. A former musician, he still has a passion for music and enjoys reconnecting with it whenever he can. For John, JLS is more than just a company—it’s a lifelong commitment to hard work, shared values, and making a lasting impact.
Shane Lesher
Chief Operating Officer
Bio
Shane Lesher is the Chief Operating Officer of JLS Environmental Services Inc. He began his career with the company in 2002 as a Technician, bringing a strong work ethic, hands-on expertise, and a drive to grow. Over the years, Shane’s leadership, industry knowledge, and dedication to excellence have earned him a key role in shaping the company’s operations and long-term success.
With a hands-on leadership style and a deep understanding of the industry, Shane plays a key role in guiding the company’s growth and ensuring the success of its teams and projects. His commitment to quality, safety, and strong relationships has been a driving force behind JLS’s long-standing reputation in the environmental services field.
Outside of work, Shane enjoys spending time with his family and participating in one of his greatest passions—TEVIS, the world-renowned 100-mile endurance ride. He competes alongside his trusted mule, Ticket, and takes pride in the dedication and resilience the sport requires.
For Shane, JLS is more than a business—it’s a legacy built on hard work, integrity, and dedication to doing things the right way.
Spencer Lowe
Integrator / Vice President of Operations
Bio
As Integrator and Vice President of Operations at JLS Environmental Services Inc, Spencer Lowe plays a central role in aligning people, processes, and priorities to deliver operational excellence across the organization. Drawing on more than 25 years of leadership experience in the construction and building specialties sector, Spencer oversees day-to-day business functions with a focus on strategic execution, cross-functional coordination, and sustainable growth.
At JLS, Spencer is instrumental in building the organizational structure needed to scale, refine operational systems, and ensure accountability at all levels. His expertise in leadership development, SOP implementation, and cross-departmental integration has made him a key force behind the company’s expansion and service delivery improvements.
Before joining JLS, Spencer served in multiple senior executive roles—including Chief Operating Officer, CEO, and Director of Sales—where he led national operations, managed multi-million-dollar budgets, and drove consistent revenue growth. His leadership style blends vision with execution, emphasizing clarity, consistency, and collaboration. . In addition to his professional achievements, he has served as a longtime community leader through the Folsom Soccer Club and Folsom Lake Soccer League. Outside of work, he enjoys spending time with his family as well as staying active in the outdoors—whether surfing, snowboarding, paddleboarding, golfing, or playing baseball.
Bailey Laundrie
HR Manager
Bio
Bailey Laundrie has been a vital member of JLS Environmental Services Inc. since 2014. She began her career with the company in administrative support, then transitioned into dispatching before moving into accounting, where she spent nearly a decade mastering all facets of the department. Her expertise grew to include payroll, and she now proudly serves as the company’s HR and Office Manager.
With a deep understanding of the company’s inner workings and a strong connection to the team, Bailey plays a key role in both daily operations and long-term employee support. She is passionate about creating a positive, productive workplace and is often the person others turn to for guidance, problem-solving, and a steady hand.
For Bailey, JLS isn’t just a workplace—it’s home. She is proud to embody the company’s core values of being solution-focused, thoughtful, and dependable, and brings those principles into everything she does.
Outside of work, Bailey enjoys spending time outdoors camping and hiking with her family. She also has a passion for photography and runs her own photography business, where she captures meaningful moments and beautiful landscapes.
Daniel Lesher
Construction Division Head
Bio
Daniel Lesher is a seasoned Project Manager and driving force behind the Construction Division at JLS Environmental Services Inc. With over 10 years of experience, Daniel has successfully led a wide range of residential and commercial projects. His career began as a field technician, where his strong work ethic and desire to learn laid the foundation for his growth into a leadership role.
He has developed expertise in areas such as waterproofing, stucco systems, specialty coatings, framing, finishes, and water damage restoration. Known for his hands-on leadership and solution-oriented mindset, Daniel thrives in challenging environments and consistently delivers high-quality results.
Daniel has successfully led projects for clients ranging from homeowners to large general contractors and public institutions. He is also passionate about mentoring team members and fostering a collaborative, growth-focused work culture. With multiple industry certifications and a dedication to excellence, Daniel is a key asset to the JLS team and its continued success.
Outside of work, Daniel enjoys spending time with his wife and kids and making the most of the outdoors. He loves spending time camping, dirt bike riding, off-roading, horseback riding and exploring new trails with his family.
Patrick Marcom
Demolition Division Head
Bio
Patrick Marcom is the Head of the Demolition Division at JLS Environmental Services Inc., where he oversees all aspects of demolition operations—from estimating and project planning to execution and safety compliance. He joined JLS in September 2024 as an Estimator for abatement and demolition projects and was quickly promoted, bringing with him decades of field and leadership experience.
Patrick has worked in the demolition and abatement industry since 1998, starting as a general laborer and steadily advancing through the ranks. By 2016, he had earned the role of Vice President of Demolition Operations. Most recently, Patrick served as a Senior Estimator and Project Manager for local demolition and environmental firms and also spent six years running his own demolition contracting business, serving clients across Northern California, the Bay Area, and the Central Valley.
Over the years, he has estimated and managed projects ranging from $2,000 to $2 million, bringing a consistent focus on safety, efficiency, and client satisfaction. His responsibilities have also included business development, coordinating safety meetings, and supporting financial operations such as budgeting, W.I.P. schedules, billing, and collections. Patrick’s deep understanding of both fieldwork and operations makes him a well-rounded and trusted leader.
Outside of work, Patrick enjoys attending baseball and basketball games and spending time at church. He brings the same dedication, focus, and integrity to his personal life that he brings to the job every day.
Francisco Lesher
Insurance Division Head
Bio
Francisco Lesher is the Head of the Insurance Division at JLS Environmental Services Inc., where he leads a specialized team handling insurance-related restoration and mitigation projects. He oversees estimating, documentation, and client relations—helping navigate the complexities of insurance claims with accuracy, efficiency, and clear communication. Francisco’s leadership ensures that both clients and carriers receive exceptional service throughout every stage of the process.
Francisco’s journey at JLS began in 2020 in the Accounting Department as an Accounts Payable assistant. From there, he moved into field operations as a Mitigation Technician before transitioning into becoming an estimator. In 2025, Francisco was promoted to Head of the Insurance Division, where he now uses his broad experience—from finance to fieldwork—to bridge the gap between operations and client support.
Before joining JLS, Francisco served on active duty in the United States Air Force from 2012 to 2018, stationed at Incirlik Air Base in Turkey and Travis Air Force Base in California. He continues to serve in the Air Force Reserves at Travis AFB. In 2022, he earned his bachelor’s degree in Managerial Economics with a minor in Accounting from UC Davis, equipping him with a strong foundation in business strategy and financial management.
Outside of work, Francisco enjoys a full and active life with his wife and four children. He spends his free time reading, running, working out at the gym, shooting, camping, boating, traveling, and creating memories with his family.
Jordan Gavigan
Service Division Head
Bio
Jordan has been an integral part of JLS Environmental Services Inc. since 2013. He began his career as a Field Technician, bringing hands-on experience, a strong work ethic, and a dedication to getting the job done right. Motivated to grow within the industry, he completed Construction Project Management courses at Cosumnes River College, further strengthening his skills in managing complex projects and leading effective teams.
Jordan’s commitment to excellence and natural leadership have earned him several well-deserved promotions—from Project Engineer to Project Manager, and now Head of the Service Division. He also holds a California Contractor’s License for Painting and Decorating, a testament to his technical expertise and pride in quality workmanship.
Known for being highly organized, professional, and easy to work with, Jordan helps create a positive and productive team environment. He brings structure, energy, and a steady hand to every project—ensuring that work is done efficiently and collaboratively.
Outside of work, Jordan enjoys remodeling his home, cooking, watching and playing sports, and spending time with his family. For him, JLS is more than just a job—it’s a place to make a difference. He takes pride in living out the company’s core values of being dependable, thoughtful, and solution-focused in everything he does.