Water Treatment & Softeners in Cambridge, MA

Compare 38 water treatment & softeners contractors near you in Cambridge and surrounding area with an average rating of 4.7/5. Get free quotes, read reviews, and find the right pro for your project.

Last updated March 23, 2026

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Other Businesses in This Area

Oasys Water, Inc.

~18 years online
oasyswater.com

Poseidon Water

17+ years online
poseidonwater.com

Wellness Water Filtration Systems

5½+ years online
wellnesswaterfiltrationsystems.com/boston-ma

Aquatek Filtration & Pump Service Inc.

5.0~18 years online
aquatekfilterandpump.com

Bluedrop Water

5.0~14 years online
bluedropwater.com

Briggs AC Services

5.09 mo online
briggsacstafford.com

Desalitech

5.0

Emmett Plumbing & Drain

5.09 mo online
emmettplumbinganddrain.com

H2O Care, Inc

5.026 years online
h2ocare.com

H2O Care, Inc.

5.026 years online
h2ocare.com

Laundry Machines Llc

5.0
onspacetime.wordpress.com

Project Clean Water

5.02½+ years online
projectcleanwater.net

Royal Plumber Cambridge

5.0

True Health Water Systems

5.08½+ years online
truehealthws.com

Water Filtration Services, LLC

5.018½+ years online
waterfiltrationservices.com

Premier Water Systems, Inc

4.9~24 years online
premierwatersystems.com

Semper Flow Plumbing

4.92 years online
semperflowplumbingboston.com

Akian Plumbing, Heating, Cooling & Electric

4.88+ years online
akianplumbing.comGet a Free Quote

Freiner Company, Inc.

4.8~29 years online
freiner.com

Roto-Rooter Plumbing & Water Cleanup

4.8~29 years online
rotorooter.com/boston

Water Mold Fire Restoration of Boston

4.810½+ years online
watermoldfire.net/boston-maGet a Free Quote

Winters Home Services

4.816+ years online
wintershomeservices.com

Clear Water Pump and Well Service

4.714½+ years online
cwpsinc.com

HomeWorks Energy

4.7~18 years online
homeworksenergy.com

Boston Clear Water Company

4.611½+ years online
bostonclearwater.comGet a Free Quote

Pann Home Services & Remodeling

4.6~21 years online
pannhomeservices.com

H Mart Cambridge

4.427½+ years online
hmart.com/store/cambridge-ma-02139/717cd3b2-c027-4eb5-aaf4-313964bcf238Get a Free Quote

Olde Colony Clean Water Inc | Filtration & Purification

4.4~15 years online
oldecolonycleanwater.com/contact.htmlGet a Free Quote

Tags Hardware

4.430½+ years online
acehardware.com/store-details/16390

Pill Hardware

4.330½+ years online
acehardware.com/store-details/12010

Primo Water Exchange

1.031½+ years online
water.com/services/primo-water-exchange

Water Treatment & Softeners in Nearby MA Cities

About Water Treatment & Softeners in Cambridge

Water treatment covers filtration, softening, and purification systems for homes and businesses. Common solutions include whole-home water softeners, reverse osmosis drinking water systems, and iron/sulfur filters. The right system depends on your water source and specific contaminants.

Typical costs: Under-sink reverse osmosis systems run $300–$800 installed. Whole-home water softeners are $1,500–$4,000. Iron filters and multi-stage whole-home systems are $2,000–$6,000+.

Common projects include:
  • Whole-home water softener installation
  • Reverse osmosis drinking water system
  • Iron and sulfur filtration
  • UV water purification
  • Well water treatment systems

Water treatment installations that modify plumbing may require plumbing permits. Well water systems may need additional environmental or health department approval.

Frequently Asked Questions

How much does water treatment & softeners cost in Cambridge?
An under-sink reverse osmosis system runs $300–$800 installed. A standard water softener is $1,500–$4,000 including installation and plumbing connections. Well water treatment systems with multiple stages (sediment, iron, softener, UV) can run $3,000–$8,000. Annual maintenance (filters, salt) is $100–$300.
How do I find a reliable water treatment & softeners contractor in Cambridge?
Start with a water test — a good installer will test your water before recommending a system. Ask about ongoing maintenance costs (filter replacements, salt, UV bulb changes). The cheapest system isn't the best deal if filters cost $200 every 6 months.
Do I need a permit for water treatment & softeners in Cambridge?
Simple point-of-use filters don't need permits. Whole-home systems that tie into the main water line may require a plumbing permit. Well water treatment systems may need health department review in some areas.

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