Dierolf Plumbing and Water Treatment

From water testing to fixing a leaky faucet, we are a full-service water treatment and plumbing company.

Best Water Treatment Company: About Dierolf Plumbing and Water Treatment

From water testing to installing a water softener to fixing a leaking toilet, we are a full-service water treatment and plumbing company.

Dierolf Plumbing and Water Treatment is a full-service water treatment and plumbing company that services the tri-state area. 

We specialize in analyzing, diagnosing and treating drinking water. We also provide a full range of plumbing services for residential and commercial properties.

What we offer

Learn more about our featured services

Our passion is helping clients find solutions perfectly tailored to their needs. From our battle-tested process to our reliable client care, we’re here for you.

  • Water Treatment Services - Residential and Commercial

    Water Treatment Services - Residential and Commercial

    - Water testing

    - Well testing, including well function tests and well flow tests 

    - Servicing water treatment systems (UVs, neutralizers, R.O.s, etc.) 

    - Installation of water filtration systems

    - water filter changing 

    - Salt delivery 

  • Plumbing Services -Residential and Commercial

    Plumbing Services -Residential and Commercial

    - Plumbing trouble shooting 

    - Sump pump repair and installation 

    - Leak repair 

    - Sewer repairs, sewer cabling 

    - Septic tank inspection, repair and installation 

    - Drain cleaning and maintenance 

    - And many more

Our work

We love what we do

No matter the task, we’re dedicated to finding solutions that work for everyone while attaining results. Here are a few clients we’ve had the privilege to work with.

What our clients say

What some recent clients say about their experience with Dierolf Plumbing and Water Treatment LLC


"I am in the Real Estate business 31 years and have used many water testing and treatment companies but since using Dierolf I have no reason to use any other company. they are always responsive, efficient, customer oriented and honest." 

Stan Rothenberger

Realtor

"Very honest, very knowledgeable! I recommend them to all of my clients because of Mark's integrity and quick turn around time. He won't try to sell you anything you don't need, but if you need anything, he will help you to make the best choice for your circumstances!" 

Susan Welsh

Realtor

"We just used these guys for the first time and it's a breath of fresh air to have such honest, polite and professional people to rely on. From the first phone call with initial questions to the techs that came to do the work at our home- it was an all around pleasant experience. Thank you!" 

Andrea Kelpac

"You want an honest experience when having house repairs, and that is what you will get with Mark! I’m happy to see a business that cares about their customers and making true to there work. Thanks guys! I would highly recommend their business." 

Ashlee Crump

"Always helpful, responsive, and very professional, we have had nothing but great experiences!" 

Amy Galaska

Featured products

Learn more about what we offer


  • Duracube 40lb

    Duracube 40lb

    $12.99


  • Res up

    Res up

    $23.68


  • Coarse crystal solar salt 40lb

    Coarse crystal solar salt 40lb

    $6.99


  • Water Treatment Equipment

    Water Treatment Equipment

    prices vary


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