Operations Managment

Robert K. Sornsin - Owner / President

Robert K. SornsinBob has been a hand’s 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 HVAC and plumbing construction. Bob closely monitors each project RKS undertakes.

Joe Stachel - Chief Operating Officer

Joe StachelWith over 20 years’ experience, Joe has worked his way up from project managing and estimating to Executive Vice President/Operations Manager of RKS Plumbing & Mechanical Inc. He oversees all of our divisions and project managers as well as the office staff. He currently holds a Journeyman’s license (AZ & NM), AZ Mechanical License, & NM Plumbing & Mechanical License. In addition, he has had previous extensive experience in Design Build, Design Assist, Plumbing Mechanical, and Waste & Water Treatment Plant work.

Randy Ackman - Vice President / Project Manager / Estimator

Randy AckmanRandy has been with RKS Plumbing & Mechanical Inc. since its founding. He has been a licensed plumber for over 30 years. His projects range from small tenant improvements to multi-million dollar installations.

Anthony Abbruzzio - Vice President of Field Operations

Anthony AbbruzzioComing 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.

Chris Campbell - Project Manager / Estimator

Chris CampbellChris was brought on as a Foreman with RKS Plumbing & Mechanical Inc. 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.

Fernando Rodriguez - Project Manager / Estimator

Fernando RodriguezFernando has been with RKS Plumbing & Mechanical Inc. 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 Inc. Fernando worked his way up to a spot in the office where he is currently working as an Estimator and project manager.

Chris Meachum - Mechanical Project Manager / Estimator

Chris MeachumI initially started working in the construction industry in 1992 as a Plumber/Pipefitter, doing light commercial and high end custom homes. As my career advanced from field operations to Project Management, my experience grew to include a wide diversity of large scale Commercial and Industrial Plumbing and HVAC projects. I am an ASU graduate with a MASc in Vertebrate Zoology. Despite my love for the natural sciences I've 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.

Michael Moore - Project Manager / Estimator

Michael MooreMichael recently joined RKS Plumbing & Mechanical Inc., and has worked in the industry for 18+ years as a sheet metal installer, project superintendent, estimator and project manager. His project experience ranges from small restaurants and tenant improvements to clean rooms and baseball stadiums. He studied business management at ASU, and is actively involved in community benefits.

Ron Leinen - Senior Mechanical Estimator

Ron LeinenRon recently joined RKS Plumbing & Mechanical Inc.. He has worked in the valley for over 27 years as a HVAC estimator and project manager. Before coming to Arizona Ron was a sheet metal worker in Denver holding a Denver HVAC supervisor/journey man license.

Steve Hallmark - Project Manager / Estimator

Steve HallmarkBorn and raised in San Diego. Moved to AZ 2 years ago. 16 years of Commercial plumbing and civil experience. Been a superintendent for 5 years. Project Manager for 3 years Graduate from ABC "Associated builders and contractors"

David Velarde - Project Manager / Estimator

David VelardeDavid Velarde recently joined RKS Plumbing & Mechanical Inc. in June of 2018 and has worked in the industry for over 30 years here in the valley as a sheet metal installer, project superintendent, estimator and project manager, operations manager and owner operator. His project experience ranges from small restaurants, high end restaurants and tenant improvements to clean rooms and Hospitals. He studied Architectural illustration at Paradise Valley community college.

Bryce Basey - Safety Director

Bryce BaseyBryce came to RKS Plumbing & Mechanical Inc. in 2011 with 31 years of experience in construction project management and 25 years specific to plumbing. Bryce manages our largest projects. He is also a certified OSHA trainer and helps our safety director with field & foreman training.

Tom Sornsin - Industrial Division Manager

Tom SornsinTom joined RKS Plumbing & Mechanical Inc. with an extensive background in water and waste water treatment facilities. He graduated from ASU with a BS in Construction Engineering and was a Founding Member for the AZAGC Water/Wastewater Committee. Tom has worked in 7 western and Midwestern states as a division manager, project manager, estimator, and project engineer during his 40 year career building mainly industrial type construction. Tom manages all industrial and job order contracting (JOC) work at RKS Plumbing & Mechanical.

Jim Shiers - Industrial Estimator / Manager

Jim ShiersJim joined the RKS Plumbing & Mechanical Inc.'s Industrial Group in 2006 with 30 years’ experience in civil, water and wastewater treatment construction. He is a graduate of the ASU Construction Department of the College of Engineering and also manages the RKS Plumbing & Mechanical Inc. Safety Program, is an OSHA certified trainer and LEED Green Associate.

Denise Cullison - Project Specialist

Denise CullisonDenise joined RKS Plumbing & Mechanical Inc. in 2003 after working in the plumbing wholesale industry in sales & purchasing for 21 years. She brings her years of experience to support the Commercial, Industrial & HVAC divisions in all aspects of our projects from pre-construction to completion.

DJ Glenn - Project Engineer

DJ GlennNew to our staff in October 2016, DJ hired on as Bid Coordinator / Project Engineer. She comes from many years in the Land Development and Construction industry. She is happy to be a part of the RKS family.

Nicholas Stachel - Project Engineer

Nicholas StachelNicholas Stachel has worked on various tasks at RKS since 2012. He started in the office as an intern and transitioned into a field employee. 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.

Valerie Dee - Project Engineer

Valerie DeeValerie joined RKS Plumbing and Mechanical Inc 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.

Breonna Keysow - Bid Coordinator

Breonna KeysowBreonna is new to the RKS family, bringing 9 years of customer service experience. She is an Administrative assistant helping with various tasks around the office as well as Bid coordination. She is looking forward to growing with RKS Plumbing & Mechanical, Inc.


Matt Fallon - General Superintendent

Matt FallonMatt started with RKS Plumbing & Mechanical Inc. in 2012. Matt has over 30 years of plumbing experience. His expertise has been commercial, industrial and hospital projects.

Justin Farrar - Superintendent

Justin FarrarJustin came to RKS Plumbing & Mechanical Inc. in 2011. With over 12 years of experience in all phases of plumbing, 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 Superintendent.

Steve Dubord - Superintendent

Steve DubordSteve brings 42 years’ experience in the Plumbing & Mechanical industry. 39 years in North Dakota and 3 years with RKS. Steve holds his Master license in Plumbing and as a steam fitter. Steve also has over 15 years of experience as a Superintendent.

Kevin Lowe - Superintendent

Kevin LoweKevin Started plumbing in 1998 in Iowa. Graduate of ABC in 2003 as a Certified pipe welder. Kevin moved to Arizona 2006 and started as a forman with RKS. After 5 years in the service department, Kevin was made superintendent in 2017.

Scott Liversedge - Superintendent

Scott LiversedgeScott brings 38 years of experience to our HVAC division. Scott’s extensive experience includes project management, estimation and field coordination on everything from houses to multi-million dollar commercial jobs. Scott is an integral part of our HVAC Division.

Kent Knutson - Superintendent

Kent KnutsonKent has worked in the HVAC Industry for 40 years with experience in Commercial ,Hospitals and Industrial . He joins RKS with 15 years as a field superintendent managing manpower and overseeing multiple projects.

Luis Fajardo - HVAC Superintendent

Luis FajardoAs a Superintendent I bring 20 years of field experience to the HVAC Department, from hospitals to casinos and multistory buildings I have the coordination and people skills to communicate with our general contractors and our field staff to make sure the jobs run smooth and are profitable.

Service Department

Brandon Studer - Service Operations Manager

Brandon StuderBrandon joined RKS Plumbing & Mechanical Inc. in 2008 as a field plumber with 7 years of experience in the industry. He quickly demonstrated his abilities to manage field personnel and climbed the ranks to General Superintendent and in 2012 to Service Operations Manager.

Dathan Fisher - Special Project Supervisor

Dathan FisherDathan has been with RKS Plumbing & Mechanical Inc. since 2007. He started as a field Forman and is now our Field Service Manager. He has been a plumber for the last 18 years and a licensed journeyman for the past 14 years as well as he is a backflow certified tester.

Joe Buonemani - Purchasing Manager

Joe BuonemaniJoe started with RKS Plumbing & Mechanical Inc. 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, it was discovered that Joe was good with numbers. This and his purchasing knowledge made him ideal for such position.


Carol Geasland - Purchasing

Carol GeaslandCarol joined RKS Plumbing & Mechanical Inc. with over 30 years of plumbing and mechanical experience, both in sales and purchasing. Carol manages all aspects of material coordination for field personnel.

Terry Lawry - Purchasing

Terry LawryTerry has recently join RKS plumbing & Mechanical Inc. With over 10 years of experience in plumbing wholesale/retail his experience is a good addition to our purchasing dept.

Accounting & Administration

Monique Gibson - Controller

Monique GibsonMonique joined the RKS Plumbing & Mechanical Inc. team in August 2010. Monique has over 20 years of accounting & finance experience specific to the construction industry.

Yvonne Ayala - Accounting Assistant

Yvonne AyalaYvonne is joining RKS Plumbing and Mechanical with 3 years of Mechanical Background and over 6 years of Accounting and Customer Service Experience.

Lesley Ritter - Administrator

Lesley RitterLesley joined the RKS Plumbing & Mechanical Inc. team with 19 years of customer service and administrative experience. She currently oversees the accounting department and office administration staff to ensure all needs of the field and office staff are met.

Melissa White – Accounts Payable

Melissa WhiteMelissa joined RKS Plumbing & Mechanical Inc. in 2012 bring with her 6 years of customer service in construction, service and payroll. She currently handles our payroll and account payables.

Carly Smith – Administrative Assistant

Carly SmithCarly has been with RKS since 2018, bringing with her 7 years of customer service experience. She is in charge of answering phones, running errands and anything else that needs to be done around the office. She’s looking forward to growing with RKS Plumbing & Mechanical.

Reghan Ritter - Administrative Assistant

Reghan RitterReghan joined RKS in 2015. She is responsible for assisting in payroll and accounts payable and any other work that may be needed. She is a full time college student at GCC studying medicine. She is looking forward to growing with RKS Plumbing & Mechanical, Inc.

Katie Gibson - Administrative Assistant

Katie GibsonKatie was hired as an administrative assistant in 2017. She is responsible for answering phones, filing, running errands, and assisting with any other needed work. She is happy to be a part of RKS Plumbing and Mechanical due to their family atmosphere and everyone’s drive for excellence.