4.8
Based on 7338 reviews
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Complete Water Conditioning Services from Universe

Water conditioning is not one product. It is a category of treatment options that address different water quality problems in different ways.

Universe Home Services has been serving Long Island homeowners for over 70 years, and our licensed master plumbers install and service the full range of water conditioning equipment, from whole-home softeners to targeted filtration systems, based on the specific water chemistry at your address. Universe provides complete water conditioning services across Long Island:

If hard water or water quality is affecting your home, contact Universe Home Services today for service anywhere in Nassau and Suffolk County.

(516) 473-0202


Long Island’s Water Treatment Team

Nassau and Suffolk County homeowners call Universe when they want to understand what is in their water and what to do about it.

Nassau County sits in one of the hardest-water areas in the New York metro area. The water drawn from Long Island’s aquifer system carries mineral content, primarily calcium and magnesium, that deposits scale on every surface it contacts.

That includes the inside of your water heater tank, your dishwasher, your washing machine, your faucet aerators, and your pipes. Universe licensed master plumbers understand Long Island’s water chemistry and have been installing and servicing water treatment equipment across Nassau and Suffolk County long enough to know what works here and what does not.

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Why Work With Universe Home Services?

Our plumbers understand how Nassau County’s water chemistry affects plumbing systems and what treatment approaches work for the specific conditions here. That local knowledge changes the quality of the recommendation.

We do not recommend equipment before understanding what is in your water. The test results drive the recommendation, not the other way around.

Since 1954, our team has been installing and servicing water treatment equipment across Nassau and Suffolk County. The water quality problems we address today are the same ones we have been seeing in these homes for years.

Hard water damage to a water heater, scale buildup in pipes, or cartridge failures in faucets are all plumbing problems that often surface alongside a water conditioning conversation. We handle the full plumbing scope. One call addresses what the visit turns up.

Not every Long Island home needs a whole-home softener plus a multi-stage filtration system plus an RO unit. We give you an honest assessment of what your water chemistry requires and what a properly sized solution looks like.

Water softeners require periodic maintenance, including salt refills, resin cleaning, and valve service. Filtration systems require filter cartridge replacement on schedule. We service what we install and provide a consistent service relationship after the equipment is in.

Universe is a BBB Accredited Business. Seven decades of plumbing work across Long Island stands behind every water treatment system we install.

We live and work on Long Island. Homeowners across Nassau and Suffolk County rely on us because we know the water here and we know the homes.


An Easy, Stress-Free Scheduling Process

Getting water treatment right starts with a water test, not a product recommendation.

Universe Home Services makes the process easy from start to finish.

Call us or schedule service online at a time that works for you. We gather the details needed about your water concerns and plumbing situation.

Your licensed plumber reviews water test results and explains what they mean for your home’s plumbing and appliances. You receive a recommendation based on your specific water chemistry, household size, and plumbing configuration, not a default product.

We install water conditioning equipment to current plumbing code, handle the supply and drain connections, and set the system for your specific water conditions. You get equipment that is correctly configured from day one.

(516) 473-0202

What Our Customers Are Saying

100% Satisfaction Guarantee

4.8
Based on 7338 reviews
The technicians Nick and Brian came on time, were knowledgeable and professional.
Universe was at my home for my annual air conditioning service. Johnson Pyram was the technician. He was friendly and efficient and performed a very thorough examination of my system. I would highly recommend this company.
The technician was very good.
James was professional and knowledgeable answered all questions. They use best quality materials which is important to me
Ver professional and helpful
Anthony Krachenfels from Universe Home Service was very professional and knowledgeable. He was honest about the situation and mentioned that he could have charged for opening up the ceiling to find out the problem, but since it wasnโ€™t a plumbing issue and not his area of specialty, he chose not to charge for that work. I really appreciate and respect his honesty.

He cleaned up really nicely afterwards.

He also recommended a reliable company for the necessary repairs, and they did a great job. If anything else comes up in the future, I will definitely be calling Universe Home Service again.
Great service, great technicians
Excellent service from start to finish. James Davan was professional, knowledgeable, and took the time to explain everything clearly. arrived on time, worked efficiently, and made sure everything was running perfectly before leaving. Pricing was fair and there were no surprises. Itโ€™s hard to find honest and reliable HVAC companies these days, but James definitely delivered. Highly recommend for anyone needing HVAC repair or installation!
it was one of the best experiences we have had as homeowners and we have been for 33 years and have had a few not so good. We were recommended and were told Universe was the best and we have to agree. Explained everything from the start, getting fininacing easy; they showed up when they were suppose to; cleaned up after it was definetly a 5 star experience. One more thing the workers could not have been more pleasant.
Very nice and knowledgeable. Frank went above and beyond!
Will was awesome!
Thank you for helping us replace our old system. Great job!
On time, professional and thorough.
A job well done!
Carl is the best He is efficient and clean very personable and comes quick and gets the job done with my oil burner
Nick was great. Above and beyond.
Bob Grillo the serviceman from Universe was very professional and found our issues with our AC unit rather quickly. I would absolutely ask Universe to send Bob Grillo to do any future repairs if ever needed. Universe kept us informed from the minute we made our appointment through completion. It is very helpful to give notice of the technician being on his way so we did not have to sit around waiting for him to arrive in a time window. Great service!
The technician was professional, friendly, knowledgable and informative.
David and Ryan and Bryan did a fantastic job with the rewiring of my house. They cleaned up and made things very easy
Frank B was on time, professional, very knowledgable and friendly. He examined my furnace and gave recommendations and options for an oil to gas conversion. I was happy with the service he provided and would highly recommend
Bob Grillo was a fantastic technician . Bob shared information about my air conditioning and heating systems that I was not aware of.
In general, Universe has been great. Highly recommended!!
We have a service contract with Universe for our burner and ductless air conditioners both of which universe installed. The install staff and maintenance are always prompt, knowledgeable and nice.
Ryan was very thorough and performed the included maintenance on my HVAC
System. Price was included in my warranty on installation.
Came within 6 hours from my initial phone call. Very knowledgeable about the ac unit. Repair was done. Very polite and professional.
The technician was on time and very patient to answered all my questions, and gave me some professional opinion/experience about our central AC.
Anthony explained the problem and how to avoid it going forward. He was very knowledgeable and professional, pleasant and kind!

Universe Home Services truck stocked for HVAC, plumbing, and electrical repairs

(609) 799-3434

Water Softeners

A water softener addresses hardness by replacing calcium and magnesium ions with sodium ions through an ion exchange process. It is the primary solution for the scale buildup problem that affects most Long Island homes.

Universe installs and services water softeners across Nassau and Suffolk County.

White mineral deposits on faucets, showerheads, tile, and inside appliances indicate calcium carbonate scale from hard water. A water softener removes the minerals before they reach your fixtures and appliances.

Scale inside a water heater tank insulates the heating element from the water above it, forcing the system to run longer and consume more energy. Consistent hard water shortens water heater life significantly on Long Island. A softener installed upstream protects the heater.

Cartridges in single-handle faucets and valves in showerheads accumulate mineral deposits that cause them to fail faster than in softer-water areas. If you are replacing faucet cartridges more frequently than expected, hard water is typically the reason.

Hard water reduces soap and detergent effectiveness, leaves residue on dishes, and causes laundry to feel stiff. A water softener addresses all of these effects.

Water Filtration Systems

A water softener addresses hardness. A filtration system addresses a different category of concerns, including sediment, chlorine taste and odor, iron, and contaminants that softening does not remove.

Universe installs whole-home and point-of-use filtration systems across Nassau and Suffolk County.

Water with elevated iron leaves orange or brown staining on fixtures, in the toilet bowl, and in the laundry. Iron is not addressed by a standard water softener and requires a dedicated iron filter or oxidizing filter depending on the iron form present.

Chlorine taste and odor from municipal water treatment, or hydrogen sulfide producing a sulfur smell, are addressed by activated carbon filtration. A whole-home carbon filter removes these from every tap rather than just the kitchen sink.

Sediment filters protect fixtures, appliances, and downstream treatment equipment from particulate matter in the water supply. They are typically installed as a first stage in a multi-stage treatment system.

Under-sink reverse osmosis systems provide a high level of filtration for drinking and cooking water specifically. We install and service RO systems as a complement to whole-home treatment.

Water Testing

Every water treatment recommendation from Universe starts with a water test. Recommending equipment without knowing what is in the water is guesswork.

Universe provides water testing across Nassau and Suffolk County. We can help with:

Water hardness is not uniform across the county. The appropriate softener capacity, resin volume, and regeneration frequency depends on the actual hardness of the water at your specific address. Testing confirms the number rather than relying on regional averages.

A home with elevated iron content needs a different treatment approach than one with only a hardness problem. Testing identifies which parameters are present and at what levels before any equipment is recommended.

A water test before and after system installation confirms the equipment is performing as specified. For homeowners troubleshooting an existing system, a test documents whether the system is still softening or filtering effectively.

Water supplies and treatment equipment both change over time. Annual testing catches drift in either one so the system continues to perform the way it was commissioned to.

Family dancing together in living room


Green Universe Van parked on the side of residential street

(516) 473-0202

Whole-Home Treatment Systems

A whole-home treatment system combines softening, filtration, and where appropriate, specialty treatment into a single integrated approach. The right configuration depends on your water chemistry.

Universe designs and installs whole-home treatment systems across Nassau and Suffolk County.

Homes with hardness, iron, and taste or odor concerns benefit from a multi-stage configuration that addresses each parameter in the correct sequence. Getting the order right is part of the design.

A whole-home system has to match household water usage, not just water chemistry. Peak flow, simultaneous fixture use, and regeneration timing all factor into system sizing.

A whole-home system has to work with the plumbing already in the home, including pipe material, layout, and pressure. We evaluate the plumbing picture before recommending and installing the system.

A well-designed system is also a serviceable one. Filter changes, salt refills, and component access all get considered during installation so maintenance is straightforward across the years the system is in service.

Other Solutions for Your Home from Universe Home Services


Schedule Your Water Conditioning Service

Understanding your water is the first step.

Universe Home Services provides water testing and conditioning system installation across Nassau and Suffolk County. Contact us online or call to get on the schedule.

Universe Home Services Technician near open van doors

Water Conditioner FAQs

What is the difference between a water softener and a water conditioner?

A water softener uses ion exchange to physically remove calcium and magnesium from the water, replacing them with sodium. The result is chemically soft water that does not deposit scale. A water conditioner is a broader term that includes softeners and other treatment approaches that address hardness or other water quality parameters through different mechanisms.

How hard is the water in Nassau County?

Nassau County water is among the hardest in the New York metro area, typically ranging from 10 to 20+ grains per gallon depending on the specific water district and time of year. Water above 7 grains per gallon is considered hard. A water test at your address gives you the precise number relevant to sizing and configuring your treatment equipment.

How can I tell if my water softener has stopped performing?

The most reliable indicator is testing the output water for hardness. Hard water coming out of a softener means the resin is exhausted, the regeneration cycle is not completing correctly, or the system has a bypass or brine issue. Visible scale returning to fixtures that had been scale-free is another indicator.

Does a water softener affect my plumbing pipes?

Soft water is slightly more aggressive toward older metal pipes than hard water, primarily because hard water tends to deposit a thin protective layer of calcium carbonate inside pipes. In most Long Island homes, this is not a concern that outweighs the benefits of softening. Homes with very old lead or galvanized pipes are a case where a plumber’s assessment matters before recommending a softener.

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