About Us


The difference between NicMar Water and your local plumber…THE CREDENTIALS

NicMar President Mark Williams did not just learn on the job, he holds degrees in Applied Science and Industrial Thermodynamics, along with Agricultural Mechanization and Systems Engineering from Ohio State University.  He also holds the highest possible industry ranking, being WQA (Water Quality Association) LEVEL 6 Certified.

Business partner and co-managing principal Nichole Yiengst studied chemical engineering and business administration, receiving her degree in Small Business Management from Shippensburg University.

This is more than what Mark and Nichole do, it’s their life’s passion.  Not only do they understand water chemistry, they have the education and real-life training to solve virtually any water problem in the region.

Treat people honestly and fairly.  Provide better service, better science and better information than anyone else.  It’s pretty simple…at the end of the day, we only have one mission…to be the most customer-oriented, highest-quality, value-driven water treatment company in our region.

Mark Williams & Nichole Yiengst
(Managing Owners)

About Our Work Ethic

NicMar’s highly skilled and trained water service specialists are among the best in Pennsylvania.  They will treat your home with the respect and care it deserves conducting themselves in a professional and efficient manner.  Our field water service specialist have both the knowledge and experience to accurately diagnose virtually any problem and repair it quickly.

Here today…here tomorrow


Unlike many providers that come and go, NicMar has been managed by the same team since the early 90’s, and servicing the same region since the 1970’s.  Today, the company’s performance, experience and products are widely considered the best available in the region.

CONTACT US or call us TODAY at 800-542-8649 FOR A FREE WATER ANALYSIS!

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    OUR LIFE'S WORK, OUR LIFE'S PASSION. Three decades of solving most of the residential and commercial water issues in South Central PA.
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    When you need it. We’ve got it! NicMar Water maintains a well-stocked, state-of-the-art warehouse to provide you parts and components fast.
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    Why US? Application and Solution Expertise – The Ability to Solve ANY Water Problem.
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    A Team of Water Professionals that “deliver the Goods.” Our service and delivery pros and highly skilled; factory trained and are among the best in Pennsylvania.
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    Do you know what’s coming out of your tap? We do, and you and your family deserve better water. Keeping on top of the newest water treatment technologies, NicMar Water has the right solution for you.
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    “Old World service,” New World Know-WOW. Our technicians are not only technically skilled and highly trained, but are courteous and understand the meaning of “service with a smile.”
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Nicmar Water
999 Baltimore Road York SpringsPA17372 USA 
 • 800-542-8649

Water Solution Center

Educational Center