• Contact our friendly, knowledgeable staff for a free water analysis today!

    Serving Western Pennsylvania and Eastern Ohio since 2001.

    DEP certified water and wastewater treatment plant operator.


    Keystone Water Systems is a multi-faceted water treatment company Located in northwestern Pennsylvania. We specialize in Commercial, Industrial, and Residential Water Treatment and also serve as a PA DEP certified Water and Wastewater Treatment plant contract operator. We provide free, on-site water analysis and system quotes.

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  • Equipment

    The water treatment equipment below are just some of the American Made High-Quality systems we provide!

  • Water Conditioners

    We offer a broad range of water conditioners designed specifically to meet your needs.

  • Iron Filters

    We offer a variety of high-quality iron filters ranging from chemical-free systems to non-electric systems.

  • Drinking Water Systems

    We offer a variety of customized Reverse Osmosis Systems designed to meet your individual demands.

  • Disinfection Systems

    From UV Sterilizers to chlorination systems, We can ensure that your water is free from all forms of contamination.

  • KEYSTONE WATER SYSTEMS CUSTOM WATER SYSTEMS

    When it comes to water treatment, there is no one size fits all system. Keystone Water Systems considers the unique characteristics of each project and designs the treatment system specifically for the water to be treated.

  • Our Company is committed to the highest quality of Customer Care. At Keystone Water, we believe that the biggest factor in a company's success is a happy customer base. We strive to offer top quality products at affordable prices and service that is friendly, experienced, and timely.

    Our experience in the operations of public water supplies gives us training and knowledge that few other water treatment companies can provide. We are always current with DEP and EPA regulations and safe drinking water standards. We pride ourselves in being able to bring this advantage to you as the customer.

    Our guarantee to you is that we will never sell you products that you don't need, we will always be honest, and we will do whatever it takes to make you a happy customer! Thanks for choosing KEYSTONE WATER SYSTEMS.

  • Our Services

    Below is a list of our most popular services!

  • Get your free water Analysis today!

    Get your water tested for free! At Keystone Water, we take pride in a no charge-no hassle visit to your residence or business in need of water treatment. This gives us the opportunity to test your water and the information we need to give you an accurate quote of the treatment system that would be best for you!

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  • Customer Reveiws

    Satisfied customers are the best advertising a company can invest in!

  • When we needed our water system serviced, Keystone Water had a technician at our house within twenty-four hours. He was very friendly and explained exactly what was wrong. He was also very professional and polite. He got our water system working properly again and the price was very fair. I would definitely recommend Keystone Water for servicing water treatment systems!

    John P.

  • Our water stained everything orange! When we decided to purchase a treatment system, we contacted several companies to give us quotes. Keystones Water Systems Was by far the most professional when it came to sales. The guy that came out told us exactly what we needed without trying to pressure us or sell us anything we didn't need. That alone sold us on their company! Not to mention they were also the most affordable!

    Jessie S.

  • We hired Keystone to run our small water system. They did a super job of handling all the paperwork we needed for DEP and got our treatment system running perfectly. The best part of it is that We don't need to worry about anything that has to do with our water system. They handle everything and do a great job of it!

    Patrick H.