Kellner, LLC

Your Water Solutions Company

Learn more about the WaterCare System

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Reliable Water Treatment

Quality for life

Good water is essential to your health and home. That's why Kellner, LLC has been providing quality water solutions to New York homes and businesses since 2018. We're proud to be part of the WaterCare family, which offers a clear choice in water treatment for homes and commercial properties in 35 states.

At Kellner, LLC, we strive to provide you with the highest quality water solutions. With over 30 years of experience in our area, we can custom tailor a water solution to suit your needs. Whether your well pump has gone bad, your pressure tank has sprung a leak, your white toilet has turned orange, or you're tired of cleaning hard water deposits from your shower door, we have the best solution for your health and home.

We have the latest technology and training so our friendly staff can advise you on the best products and systems for your needs, including water softeners, iron filters, pH neutralizers, reverse osmosis, and more!

Most people don't realize that we are sitting on top of one of the biggest aquafers in the world. Kellner, LLC has the knowledge of these aquafers and how to best protect them, the best way to extract the water to give you your desired flow and pressure, and how to properly treat it to deliver clean, pristine water.

Unlike our competitors, we supply you with all of your water needs from the pump in the bottom of the well to the treated water that runs from your tap. Both the owner and employees of Kellner, LLC strive to give you the best possible solution.

Having earned a reputation for providing outstanding water conditioning products and excellent customer service, we are confident that we will be able to deliver the high-quality water you deserve!

With over 4500 happy customers, we know your water!

Customer Testimonials

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“We have used Kellner on many occasion. The service is fast, reliable, and high quality. Kellner is not just a...”

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John T. of Olean, NY

“I haven't used their services, however I can attest to the owner / operator being a stand up guy. He will go...”

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Don B. of Olean, NY

“Thank you for restoring our water today at Stayer’s Greenhouse. You had a keen understanding of what...”

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Tom T. of Olean, NY

Common Water Issues

Is there a white residue on your faucets and fixtures? It's most likely from hard water, which is caused by minerals like calcium that are dissolved in your water.

As it touches surfaces, mineral deposits build up over time. This buildup is not only unsightly but can also reduce the efficiency and lifespan of your appliances. Hardness also affects your skin and hair, causing dryness and cracking.

Relieve your home and family by removing minerals before turning on your tap.

You take pride in your home, so don't let your water tarnish it. Even the smallest amounts of iron are enough to leave rust stains on your fixtures and laundry.

Iron buildup will cause a metallic taste, making water hard to drink and cook with. High levels of rust buildup can also clog your plumbing.

Installing a WaterCare whole house water filter will make iron a worry of the past!

Water's pH balance can easily be affected by the environment. In some areas, water will turn acidic and eat away at your home's plumbing.

As copper pipes deteriorate, the metal residue rests on your sinks, showers, and bathtubs, staining them green. Also, over time, pinhole leaks can occur in the pipes.

Regulate your water's PH with an acid neutralizer system.

Does your water remind you of a swimming pool? Cities use chlorine when treating water to keep it safe and clean as it travels to your home.

Once it has arrived, these chemicals are no longer needed. Prevent the strong smell, taste, and skin irritation by removing chlorine before using the water.

Sulfur is a naturally occurring substance, but that doesn't mean it is a pleasant one. High levels of sulfur will make your water smell like rotten eggs.

Sulfur in your water can affect the whole home, making bathing a chore, food taste gross, and your laundry smell foul.

A water filter can produce the fresh, pleasant water you expect for your home!

Clean, clear water guaranteed

Kellner, LLC has been working on water in Western New York and North Western Pennsylvania for over 40 years. Founders Fred and Mark Kellner started the business on the same principles that we operate today…Provide excellent customer service, superior products, and at a competitive price. In 2014, Jay McCarthy, a longtime employee, purchased the company and continues to operate on the same founding principles.

Kellner's is national certified well driller and pump installer. We are also Certified Water Plant Operators in Both New York and Pennsylvania.

Kellner, LLC is a member in good standings with the following organizations:

  • Greater Olean Area Chamber of Commerce
  • National Ground Water Association
  • Empire State Water Well Association
  • New York Rural Water Association

We are located at 431 South Union St. in Olean, NY. Along acting as our headquarters, we operate a store from this location. Kellner, LLC sells the following materials from our store location:

  • Salt
  • Filters
  • Treatment Chemicals such as Chlorine, Resup, and Hydrodgen Peroxide
  • UV Bulbs and UV Replacement Parts
  • Well Pumps
  • Well Pipe and Wire cut to length
  • Brass and Stainless Steel Fittings
  • Pressure Tanks, Gauges, and Pressure Switches
  • Well Caps and Top Seals
  • Various Water Well Supplies


View All Associations

Water Quality Association
Water Quality Association
PA Rural Water Association
PA Rural Water Association
New York Rural Water Association
New York Rural Water Association
Allegany County Health Department
Allegany County Health Department
Cattaraugus County Health Department
Cattaraugus County Health Department
Empire State Water Well Drillers
Empire State Water Well Drillers
Greater Olean Area Chamber of Commerce
Greater Olean Area Chamber of Commerce
Made in the USA
Made in the USA
National Groundwater Association
National Groundwater Association

our service area

We serve the following areas

  • Austin
  • Bradford
  • Coudersport
  • Crosby
  • Cross Fork
  • Custer City
  • Cyclone
  • Derrick City
  • Duke Center
  • East Smethport
  • Eldred
  • Galeton
  • Genesee
  • Gifford
  • Harrison Valley
  • Hazel Hurst
  • Kane
  • Lewis Run
  • Ludlow
  • Mills
  • Mount Jewett
  • Port Allegany
  • Rew
  • Rixford
  • Roulette
  • Shinglehouse
  • Smethport
  • Turtlepoint
  • Ulysses
New York
  • Alfred
  • Alfred Station
  • Allegany
  • Allentown
  • Alma
  • Almond
  • Andover
  • Angelica
  • Belfast
  • Belmont
  • Black Creek
  • Bolivar
  • Canaseraga
  • Caneadea
  • Cattaraugus
  • Centerville
  • Ceres
  • Conewango Valley
  • Cuba
  • Dayton
  • Delevan
  • East Otto
  • East Randolph
  • Ellicottville
  • Farmersville Station
  • Fillmore
  • Franklinville
  • Freedom
  • Friendship
  • Gowanda
  • Great Valley
  • Hinsdale
  • Houghton
  • Hume
  • Kill Buck
  • Leon
  • Limestone
  • Little Genesee
  • Little Valley
  • Machias
  • Olean
  • Otto
  • Perrysburg
  • Portville
  • Randolph
  • Richburg
  • Rushford
  • Saint Bonaventure
  • Salamanca
  • Sandusky
  • Scio
  • South Dayton
  • Steamburg
  • Swain
  • Versailles
  • Wellsville
  • West Clarksville
  • West Valley
  • Westons Mills
  • Whitesville
  • Yorkshire
Our Locations:

Kellner, LLC
431 South Union Street
Olean, NY 14760
Kellner, LLC

431 South Union Street
Olean, NY, 14760

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