Operations Management

Robert K. Sornsin - CEO/ Founder

Robert K. SornsinBob has been a hands-on owner since RKS Plumbing & Mechanical Inc.’s inception in 1990. Bob graduated from ASU with a bachelor’s degree in Construction Engineering. He has extensive experience in Plumbing & HVAC construction. Bob closely monitors each project RKS undertakes.

Joe Stachel - President

Joe StachelWith over 30 years’ experience, Joe has worked his way up from project managing and estimating to President of RKS Plumbing & Mechanical, Inc. He oversees all aspects of operations. He currently holds a Journeyman license (AZ & NM), our AZ Mechanical License & the NM Plumbing and Mechanical licenses. In addition, he has had previous extensive experience in Design Build, Design Assist, Plumbing, Mechanical, and Waste & Water Treatment Plant work.

Anthony Abbruzzio - Executive Vice President & Field Operations

Anthony AbbruzzioAnthony Coming from a New York family with multiple generations of plumbers, Anthony brought many years of field experience with him when he joined RKS Plumbing & Mechanical Inc. in 2002. Starting as a field plumber, he has worked his way up the corporate ladder. From Foreman to General Superintendent to where he is now. Being the Vice President of Field Operations, he manages all of the field personnel, oversees the construction progress of all projects, is a liaison for field to management communication, handles personnel & project conflicts as they arise.

Phillip Doran - Vice President Commercial Division

Phillip DoranPhillip joined RKS Plumbing & Mechanical, Inc. in 2002 as a field plumber and quickly moved up the ranks to Field Superintendent where he oversaw our large Commercial and Industrial projects. In 2009, Phillip moved into the office to estimate and project manage. In 2012, Phillip was promoted to the Vice President of our Commercial Division overseeing the other project managers and estimators.

Randy Ackman - Vice President 

Randy AckmanRandy has been with RKS Plumbing & Mechanical, Inc. since its founding. He has been a licensed Journeyman plumber for over 40 years. Randy helped RKS grow from the beginning and has done it all with RKS. He began as a field plumber working his way to a foreman then superintendent. After 15 years in the field for RKS, he became a project manager/estimator. When RKS created a service department, Randy oversaw this operation for two years. He is now one of our Vice Presidents as well as a project manager and estimator. His projects range from small tenant improvements to multi-million-dollar installations.


Lesley Ritter - HR / Payroll 

Lesley RitterLesley joined the RKS Plumbing & Mechanical team in 2007 with over 15 years of customer service and administrative experience. She currently handles the company’s payroll and human resource needs while overseeing the accounting department and office administration staff to ensure all needs of the field and office are met.

Monique Gibson - Controller

Monique GibsonMonique joined the RKS Plumbing & Mechanical, Inc. team in August 2010. Monique has over 30 years of accounting & finance experience specific to the construction industry.

Melissa Lynd – Accounts Payable

Melissa LyndMelissa joined RKS Plumbing & Mechanical, Inc. in 2012 bring with her 6 years of customer service in construction, service and payroll. She currently handles our accounts payable, discount vendors, pre-liens & supplier waivers.

Cameron Pinches – Project Accountant

Cameron PinchesCameron has been with RKS Plumbing & Mechanical since 2012; starting with filing paperwork, stocking inventory, and keeping the warehouse clean. He then worked as a parts runner, delivering to all of our jobs across the state. After 5 years of driving, Cameron moved into the purchasing department, learning how to buy material and coordinate delivers with the parts runners & Job site foremen. Now, Cameron is working in accounting, primarily in accounts receivable and our commercial projects division. Cameron has an associate’s degree in business management from GCC, and wants to continue learning everything he can about business and finance through experience at RKS.

Reghan Ritter – Bid Coordinator

Reghan RitterReghan joined RKS Plumbing & Mechanical in 2015. She is responsible for new project bid coordination between our estimators, project managers and general contractors. She graduated from GCU with a Bachelor’s degree in Exercise Science.

Christine Evans – Receptionist

Christine Evans Christine recently joined RKS after moving to Arizona from Pennsylvania. She’s responsible for answering the phone, filing, running errands and assisting with any other needed work. She is happy to be a part of RKS Plumbing & Mechanical due to its friendly atmosphere & generosity.


Chris Campbell – Senior Project Manager/Estimator

Chris CampbellChris was brought on as a Foreman with RKS Plumbing & Mechanical in 2006. With 17 years of experience in construction, Chris has a wide range of experience in commercial, industrial and institutional plumbing projects. In 2012, Chris was promoted to General Superintendent for his extensive plumbing knowledge and ability to organize and lead the field personnel. In 2013, Chris was promoted to Project Manager/Estimator to bid and manager our largest projects.

Fernando Rodriguez – Plumbing Project Manager/Estimator

Fernando RodriguezFernando has been with RKS Plumbing & Mechanical since 2004 where he started out as a plumber apprentice. After four years in the field, Fernando became a Journeyman Plumber as well as taking on the responsibility of a Foreman. In 2015 after 11 years of experience with RKS Plumbing & Mechanical Fernando worked his way up to a spot in the office where he is currently working as an Estimator and project manager.

Matt Fallon – Industrial Project Manager/Estimator

Matt FallonMatt started with RKS Plumbing & Mechanical in 2012 as a Superintendent bringing with him over 30 years of experience in the field. His expertise has been in commercial, industrial and hospital projects. He is currently driving our Industrial & JOC division mentoring the next generation along the way.

Jeremy de la Rocha – Plumbing Project Manager/Estimator

Jeremy de la Rocha Jeremy joined RKS Plumbing & Mechanical in July of 2019 as a project manager and estimator. He has 16 years’ experience in small to large commercial plumbing projects. He is dedicated to making sure that each and every project is begun and finished as a complete and professional product that is turned over on schedule.

Steve Hallmark - Plumbing Project Manager/Estimator

Steve HallmarkAs a Trade graduate from “Associated Builder & Contractor”, Steve Hallmark has been in the plumbing trade over 24 years, with over 10 years of that being in a management position. Steve has been with RKS Plumbing & Mechanical since 2014 and has worked his way up to a Project Manager & Estimator. Steve has estimated and managed some of RKS’s Specialty Projects, including FARS, also known as “Rescue Air” and has recently added Cryo Systems to his portfolio. In 2019 Rescue Air partnered with RKS and we now do all the T&C (Test & Certifications) in Arizona for Rescue Air. RKS is also the premier Installer for Rescue Air Systems in Arizona.

Ron Leinen -Ron Leinen – Senior Mechanical Estimator

Ron LeinenRon joined RKS Plumbing & Mechanical in 2014. He has worked in the valley for over 30 years as a HVAC estimator and project manager. Before coming to Arizona, Ron was a sheet metal worker in Denver holding a Denver HVAC journeyman license.

Chris Meachum - Senior Project Manager/Estimator

Chris MeachumChris initially started working in the construction industry in 1992 as a Plumber/Pipefitter, doing light commercial and high-end custom homes. As his career advanced from field operations to Project Management, his experience grew to include a wide diversity of large scale commercial and industrial plumbing and HVAC projects. He has never found anything more rewarding than that which comes with seeing a project through from start to finish, and exceeding customer expectations along the way.

Luis Fajardo – Mechanical Project Manager/Estimator

Luis Fajardo Luis started in the mechanical trade as a laborer in 1995 and worked his way up through the trade. Luis joined RKS Plumbing & Mechanical in 2014 as a Mechanical Superintendent bringing with him his many years of hands-on experience. Now, Luis is one of our Mechanical Project Managers & Estimators.

Courtney Shlee – Mechanical Project Manager/Estimator

Courtney Shlee In 2012, Courtney entered the commercial plumbing & mechanical trades. Her depth, knowledge and experience range from pre-construction coordination to her current position as a Plumbing & Mechanical Estimator. Courtney is skilled and trained to build and re-build the most current estimation software available to plumbing & mechanical contractors. Her determination, perseverance and devotion to teamwork are an asset to any project.

Nick Stachel – Project Engineer

Nicholas StachelNicholas Stachel has worked in various positions at RKS Plumbing & Mechanical since 2012. He started in the office as an intern and transitioned into a field employee eventually becoming a licensed Journeyman Plumber. Through his work he has shown he is a hard worker and always willing to help out and learn more. He can now be seen in the office as a project engineer helping all the project managers with a main focus on Plumbing & Industrial projects.

Stephen Sornsin – Project Engineer 

Stephen Sornsin Stephen joined RKS Plumbing & Mechanical in 2014 as an administrative assistant while obtaining and has since graduated with his Masters degree in accounting from GCU. He is currently a project engineer for our commercial, industrial and JOC projects.

DJ Glenn - Project Engineer

DJ GlennDJ Glenn Joined RKS Plumbing and Mechanical in October of 2016 with over 20 years in managing land development projects in the construction industry. DJ is currently one of our Project Engineers. She looks forward to be a part of the RKS family for many more years

Valerie Dee - Project Engineer

Valerie DeeValerie joined RKS Plumbing and Mechanical in May 2018 as a Project Engineer for the HVAC division, she worked in the industry for 10 years in the valley and around the state specializing in electrical and piping as a Project Coordinator and Project Engineer. Valerie is a graduate of ASU with a Bachelor’s degree in Social Work.


Chris Nadolny – Project Manager/Estimator

Chris Nadolny Chris started in 1986 as a plumber’s helper, worked his way up in the field, and earned his journeyman’s license in 1993. He became a foreman in 1995, and joined RKS Plumbing & Mechanical in 2010. He has overseen large commercial projects, as well as hospitals, schools, and casinos. RKS opened an office in Flagstaff, Arizona where Chris is branch manager, estimator, project manager, and superintendent, where he oversees all projects in Northern Arizona.


Justin Farrar – General Superintendent

Justin Farrar Justin came to RKS Plumbing & Mechanical Inc. in 2011. With over 16 years of experience in all phases of plumbing as a licensed Journeyman Plumber, it was ideal to bring him on as a Foreman. His ability to successfully manage projects, organize field personnel, communicate with the customer, and get the job done right the first time, made him the ideal candidate for our General Superintendent.

Michael Orr – General Superintendent

Michael Orr Michael joined RKS Plumbing & Mechanical in 2013 as mechanical foreman to run our larger mechanical projects. With his 20 plus years of experience in commercial and residential HVAC, he was ideal for the General Superintendent of our Mechanical Division.

Thomas Beck – Mechanical Superintendent

Thomas Beck Tom is a pipe-fitter trained by commercial and industrial construction. He has an AA in Construction Supervision, a BA in Operations Management and training in lean six sigma. His background helps bridge the communication gaps between field and office. If Tom is not on-site or in the office, you can find him at Glamis imperial sand dunes.

Larry Gambino – Plumbing Superintendent

Larry Gambino Larry came to RKS Plumbing & Mechanical in 2015 with over 30 years of hands-on experience in the plumbing industry in California & Arizona. Prior to becoming one of our Superintendents, Larry would run our largest jobs primarily high-rise hundreds of unit condo development with massive crews. Larry has expertise in every aspect of commercial and industrial as well as custom housing.

Gabriel Guerrero – Plumbing Superintendent

Gabriel Guerrero Gabriel has over 19 years of commercial construction experience. Before joining RKS Gabriel was a Commercial Framing Superintendent for 9 years with a large out of state construction company. He started as a plumbing apprentice, quickly advancing to Leadman and then a Foreman. Finally promoting to a Superintendent in the last 2 years where he is responsible for 18 large commercial projects. Gabriel has his OSHA 10 and OSHA 30 certifications.


Bryce Basey - Safety Director 

Bryce BaseyWith over 30 years in commercial construction, Bryce has led the RKS Safety team to be recognized by ADOSH with the SHARP award recognizing an exemplary injury and illness prevention program. Bryce is currently a 502 Construction Outreach Trainer UCSD, NITC Medical Gas Instructor, American Red Cross Instructor, National Safety Council Driving Instructor and UPC/IPC Instructor. Also, he has established a QR code that carries all the safety documents and processes for RKS Plumbing & Mechanical that are immediately available to all employees.

Seren Ozcan – Safety Manager

Seren Ozcan Joining RKS Plumbing & Mechanical in 2018, Seren started out in the Service Department with a background in technology and cloud-based software. Two years later, he transitioned into the Safety Division and since has been an integral part in establishing RKS with the accreditation in the Safety & Health Achievement Recognition Program (SHARP). A designation only a handful of contractors in Arizona hold.

Ryan Sornsin – Safety/Purchasing

Ryan Sornsin Ryan began working for RKS Plumbing & Mechanical in 2014 primarily as a parts runner. In 2022 he is currently training in all aspects of safety focusing on job site safety walks to help our foremen run safe and efficient sites.

Dustin Vavrinak – Safety/Fleet/Hiring Manager

Dustin VavrinakDustin started at RKS Plumbing & Mechanical in 2016 as a laborer and worked his way through both the commercial and service divisions. Being recognized for his hard work, Dustin was promoted into the office for the hiring of field personnel. In addition, he has since taken over managing our vehicle fleet and assisting with Safety in the field.


Mike Lynd – Mechanical Service Manager

Mike Lynd With 25 years in the HVAC industry, Mike Lynd started at RKS Plumbing & Mechanical in 2016 as a lead HVAC technician for the service department. He is currently our Service Superintendent responsible for overseeing field operations and estimating service projects.

Chris Specht – Service Project Manager/Estimator

Chris Specht Chris brought to RKS Plumbing & Mechanical over 40 years of experience in the plumbing service industry as a licensed Journeyman plumber and gas fitter in 2021. He estimates and oversees all of our plumbing service jobs.

Yvonne Ayala - Service Controller

Yvonne AyalaYvonne joined RKS Plumbing & Mechanical in 2016 as an accounting assistant and is currently our Service Controller where she oversees all accounting and invoicing for the service department. She is happy to be a part of the RKS family and is looking forward to continued growth with the company.

Katie Vavrinak - Service Dispatcher

Katie VavrinakKatie has worked with RKS Plumbing & Mechanical since 2017 and has put her outstanding customer service skills to work. She is responsible for handling customer relations with our service customers, scheduling of all work orders and estimating small projects. Katie enjoys working for RKS because of the family atmosphere and everyone’s drive for excellence

Kyle Allard – Service Estimator/Coordinator

Kyle Allard Kyle joined RKS Plumbing & Mechanical in 2016 as a field laborer and has since earned his Journeyman Plumbers license. Kyle has since been brought into the office as part of our Service team as our Service Coordinator. He handles all aspect of our service projects from estimating the project to ordering & tracking materials for each service project.


Joe Buonemani - Purchasing Manager

Joe BuonemaniJoe started with RKS Plumbing & Mechanical in 2001 as the in-house runner for the company. He took it upon himself to learn about the product he was handling, where to get it, and who had the best pricing in town. In 2011, Joe was promoted to purchasing and knowledge made him ideal for such position.

Terry Lawry – Purchasing Agent

Terry LawryTerry joined RKS Plumbing & Mechanical in 2016 with over 10 years of experience in plumbing wholesale/retail. His experience has made him a valuable asset to our purchasing dept.

Our Location

License Information

  • L-37 Commercial Plumbing #ROC096652
  • CR-39 Commercial Mechanical #ROC206709
  • C-37R Residential Plumbing #ROC109582
  • K-39 Residential Mechanical #ROC206709
  • Class A General Engineering #ROC223612
  • KB-1 Dual Building #ROC288947
  • L-4 Boilers, Steamfitting & Process Piping #ROC288914
  • K-78 Solar Plumbing #ROC272812
  • MM01, MM02, MM04, #363387

Proud Members Of

  • Boma ASA