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Find the Best Water Treatment Systems in Boston, MA

Water softener and treatment systems effectively eliminate bacteria, odor and mineral buildup in plumbing. With more than 2 million people in the New England area on well water, it is common to be interested in some type of water softener or treatment system. While no filter takes away all contaminants, some get closer to that goal than others. Boston.com has partnered with ConsumerAffairs to create this guide by comparing the best Boston water treatment system companies and choosing the top six

This content was created by a Boston.com partner. The editorial department of Boston.com had no role in writing, production, or display. Boston.com may be compensated for publishing this content and/or receive a commission on purchases of products or services described within the post.

Compare Water Treatment System Companies in Boston

How to choose a water treatment system in Boston

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Water softeners and treatment systems aren’t one-size-fits-all. If you’re interested in improving your water quality, there are a few key variables you need to assess before you buy. These include the types of contaminations you want to target, your water source, whether you’re interested in eco-friendly options and the level of maintenance and upkeep.

Additionally, it’s important to compare different types of water filter system options.
Common options include:

  • Whole house water filters: Whole home/house water filters can also be referred to as a point-of-entry tap. This system is installed where the main water line comes into your home. Whole home water filter systems bring filtered water into every tap in your home. There are a variety of whole systems with different filters. All water filters are designed to remove impurities and any odor. This could be sediments, hardness, bacteria or dirt. Systems and filters can be customized after a water test, ensuring to target concerns specific to your home.
  • Water softeners: Hard water and mineral build-up can eventually clog pipes. Water softeners remove high concentrations of magnesium and calcium. There are a few water softener options.
    1. Salt softeners: Salt softeners use a process called ion exchange to remove hard water minerals. When the water flows through the salt-based softener, the salts exchange with the calcium and magnesium to create soft water.
    2. Salt-free softeners: Salt-free softeners use a process called Template Assisted Crystallization (TAC) to convert the hard minerals to a crystal that will not stick. Salt-free softeners are also called water conditioners, as they neutralize the minerals.
    3. Eco-friendly water softeners: Salt-free and ultraviolet (UV) water softeners are two eco-friendly options. Salt-free softeners do not require electricity to run and don’t create wastewater. UV softeners help protect from potentially harmful bacteria. These factors make both softeners more natural and eco-friendly.
  • UV disinfection: UV disinfection can destroy potentially harmful bacteria by exposing it to UV light. This keeps the bacteria and pathogens from reproducing. This disinfection won’t affect water taste and can be easy to install and maintain.
  • Water conditioners: Water conditioners are typically salt-free systems that remove substances that can change the water taste and smell. These include chlorine, chloramines, organic gasses and lead. Some conditioners filter out the chemicals while others alter the physical structure.
  • Reverse osmosis:Reverse osmosis happens when water is pushed through a semipermeable membrane, which de-mineralizes or de-ionizes that water. This purifies the water while keeping back the contaminants.
  • Activated carbon filters: Many water filtration systems use activated carbon filters in some way. Activated carbon filters remove contaminants through absorption. These filters are ideal for removing chlorine, organic chemicals, chloroform and other chemicals.
  • Water distillation: Water distillation is a process where water is boiled until it evaporates and condenses. This leaves behind impurities, compounds and minerals, creating clean water.

Different water filtration systems and purifiers will have different installation and maintenance needs. Most water purification companies will provide installation, repair and ongoing maintenance services. Some small-scale systems may be able to be maintained on your own. When working with a water treatment system company, be sure to ask what type of maintenance is required. Additionally, find out what warranties and money-back guarantees are offered to best protect yourself.

How much do water treatment systems cost in Boston?

The average cost of a water treatment system in Boston is $3,136. Prices can start as low as $650 and cap out at $5,500, with a typical range of $2,093 to $4,178. Pricing starts with the filtration system type. For example, a single under-sink system could cost as little as $150, while a whole-house system will start at around $1,000. Several factors affect the overall cost, including:

  • Self vs. professional installation
  • Home size
  • Geographic location
  • Filtration rating
  • Brand

Another important budget consideration is that water bills can be higher for homes with water treatment systems. The regeneration or backwash cycles can sometimes become stuck in a cycle with higher water use. This could make your monthly water utility bill higher.

Water treatment systems can be a big investment upfront. Because of the plumbing aspect, it’s important to hire professional plumbing experts for larger, whole-home projects. To help with the initial upfront costs, many companies offer discounts and have financing available.

Boston water softeners and treatments FAQ

Are permits required to install a water treatment system in Boston?
Permits are not typically required to install a basic water treatment system. However, if there is a large plumbing installation, you’ll want to work with a licensed plumber to ensure all regulations are met.
How long does a whole house water filter last?
With regular maintenance, a whole-house water filtration system can last from 15 to 25 years.
What do water filters remove?
Water filters remove harsh minerals and chemicals. This can also remove odor and hard water sediment buildup in plumbing and taps.
How much does a whole house filter cost in Boston?
The average Boston whole-house water filtration system costs $3,136. However, pricing can range from $650 to $5,500.

Boston water treatment system company information

Pentair Water Solutions

Pentair Water Solutions works with local, certified dealers to install water treatment systems. It doesn’t sell to residents directly, but you can search online for a local expert. Pentair manufactures water softeners and installs whole house filtration systems, under-sink and countertop filtration systems, shower filtration systems and UV disinfection systems. Their systems can help reduce hard water scaling, chlorine taste/odor and lead/arsenic contamination. Warranties vary based on the system.

Pentair Water Solutions


NuvoH20 offers water softeners and point-of-use systems. Point-of-use includes dishwasher and water heater systems. NuvoH20 specializes in citrus-based softeners as an alternative to salt. The citrus helps prevent and remove scale buildup, which improves water purity and taste. NuvoH20 cartridges are replaced about every six months, and an auto-ship membership program is available. NuvoH20 disperses clean water throughout the whole home, and citric acid lowers pH levels, which is beneficial for the environment. NuvoH20 offers a five-year warranty with some restrictions.


RainSoft Water Treatment Systems

RainSoft Water Treatment Systems specializes in water conditioning systems, drinking water systems, filters, air purifiers and laundry systems. You can schedule a free water test and in-home consultation to see which system is best for your water type. RainSoft Water Treatment Systems is a national company that works with vetted local dealers with partners in Boston. Products include a limited lifetime warranty.

RainSoft Water Treatment Systems


Kinetico offers water softeners, drinking water products and specialty filters and systems. You can get a quote online and schedule a water test, which is free in most cases. Kinetico is a nationwide company that partners with local professionals for installation and service. Kinetico local professionals are specialty-trained and authorized to work on its systems. Warranties range from two to 10 years.

Kinetico Learn More

Culligan Water of Boston

Culligan Water of Boston provides water treatment and softener systems, reverse osmosis systems, drinking water purification, total home filtration and commercial water treatment. Free water testing is available for system matching and recommendations. Culligan offers a 30-day money-back guarantee and a $100 veterans discount. Culligan Water of Boston is located at 21 Cochituate St., Natick, MA 01760.

Culligan Water of Boston

H2O Care

H2O Care offers total home water filtration systems, water softeners, reverse osmosis and point-of-use filtration systems. It offers free water assessments, which can be particularly helpful for those on private wells. H2O Care doesn’t contract out its work and only employs licensed master and journeyman plumbers to install its systems. H20 Care serves Massachusetts, New Hampshire and Maine with its main office at 18 Lonergan Road, Middleton, MA 01949.

H2O Care