Meet our Team of Plumbers in Orange County

William "Jay" Horsky Jr. - Owner
42+ Years in the Trade
32+ Years as Founder of Professional Plumbing Inc.

Jay HorskeyTwenty eight years ago one Orange County plumber had a mission. He had paid his dues as an apprentice and then a master plumber under other Orange County plumbers, and he something just was not quite right. He knew that there had to be a plumber in Orange County that treated clients well and charged a fair price. He wanted to work for that kind of plumber. Orange County, alas, did not seem to have one.

After searching high and low to no avail for polite, honest plumbers, Orange County plumbing services were deemed by this young man to be void of any such thing. At this point, he realized it was time to give the people of his community what they deserved, and that was a dependable, knowledgeable Orange County plumbing service that always charged a fair price for high quality work.

Liz Barton – Office Manager

13 + Years with Professional Plumbing Inc.

If you have called our office you already know Liz Barton, our Office Manager and go to person to get things done.  A little-known fact is she is also the Owners Sister. Liz has been with Professional Plumbing Inc for close to 12 years. She comes from a background in Operations Management in the warehousing industry. Liz does all our scheduling, invoicing, accounts payable and more. Any problems or questions you may have she will be more than happy to help just give her a call. She is invaluable to the day to day operations of Professional Plumbing Inc.

Liz has a horse ranch in Gavilan Hills/Lake Mathews area where she and her husband reside. She loves to spend time with her 2 kids, and 2 grandchildren along with her horses, goats, chickens, cats and dogs.


Nick Haas – Orange County Service Manager

32+ Years in the Trade.
24+ Years with Professional Plumbing Inc.


Meet our Field Supervisor Nick Haas. Nick has been in the plumbing industry for over 35 years, the last 27 years here with us.  He has been an influential part of helping get Professional Plumbing Inc. to where it is today, with his great customer service and amazing work ethic. He is known as our Grohe Guru. Have an old faucet you don’t want to replace, let Nick do his magic and rebuild it. He has also been a large part of restoring Old Towne Orange, rebuilding residences downtown with period correct fixtures to reflect old time charm.

When Nick is not working he loves to hang out with his family, wife Toni, 2 daughters and a beautiful grandson.  He also has an amazing guitar collection that he fiddles with, and a Beautiful 1956 Classic Chevy that he shows on the weekends.

Mark Leitgeb – Journeyman Plumber

15+ Years in the Trade
9+ Years with Professional Plumbing Inc.

 Mark Leitgeb

Meet our Service Tech Mark Leitgeb, he has been working for Professional Plumbing Inc for the last 9 years. He does a lot of our new construction building Custom homes, remodeling Kitchen and bathrooms, additions to homes and TI ( Tenant improvements ) on the commercial plumbing end. He is also one of our Certified Backflow Testers and repair specialists.

When he isn't working on plumbing he is trying to get on a golf course. With a low index of a 4, he knows how to play golf well. He also enjoys billiards and almost any other sport. On the weekends you will find him relaxing on his couch watching Football or golf. He also has a few Fantasy leagues for football and golf he plays in. He loves animals and has a new puppy named Maggie Mae, a golden Retriever along with a husky mix called Jack.

Vince Sargent – Journeyman Plumber

14+ Years in the Trade
9+ Years with Professional Plumbing Inc.

Vince Sargent

Meet our Service Tech Vince Sargent. Vince started doing small plumbing jobs at Star Ranch where his passion for horses brought him. He realized he developed a desire for working with his hands and decided to start a career in plumbing. Vince then came to work for Professional Plumbing in 2012 where he started his apprenticeship and worked his way up to Journeyman which he loves.

When Vince is not working he spends times riding horses whenever he can. Since he has retired from riding Bulls at the rodeos he now goes to all the local Rodeos and cowboy events in the local areas as a spectator. Vince is also enjoying learning the game of golf on the weekends.

Chris Kirsten – Manager Corona/Riverside Office

23+ Years in the Trade.
9+ Years with Professional Plumbing Inc.


Meet our Training Supervisor and manager to our new Inland Empire office Chris Kirsten. Chris came from Reno where he was in the plumbing industry for 15 years doing custom homes in Lake Tahoe before coming to Professional Plumbing Inc in 2009. Chris loves interacting with our customers and catching up on what is new in their lives. He prides himself on his knowledge of plumbing and work ethic.

When Chris is not working he is the consummate family man. He is married to his wife Yvonne and is the father to 5 kids with one on the way. He loves to spend time with his wife and kids, taking them to the park, dirt bike riding or video games.

Oscar Alonzo

4th Year Apprentice (2018)
4 Years with Professional Plumbing Inc.

Oscar Alonzo

Meet Oscar Alonzo our plumbing Apprentice. Oscar has been with Professional Plumbing Inc for close to 2 yrs. He loves working with his hands and learning his new craft through training with our other Techs. Oscar helps out on many of our larger jobs, from digging trenches to laying pipe. He does it all.

Oscar is married and the father to 3 lovely girls. When he is not working, he loves to take his wife and kids camping, to the park and to the beach.  He also enjoys working on his 350Z on the weekends.

Marc Delio

20+ Years in the Trade
4+ Years with Professional Plumbing Inc.

Marc Delio

Meet our Service Tech Marc Delio. Marc has been in the plumbing industry for close to 20 years.  He has spent the last 2 years working for Professional Plumbing Inc. He enjoys working with his hands and interacting with customers.

Marc is a real family man, when he is not working he likes to spend time with his Son and taking care of his Mother who lives close by. He also enjoys playing golf and watching all sports on t.v. or in person.