Water Treatment & Softeners in Charleston, SC

Compare 28 water treatment & softeners contractors near you in Charleston 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 24, 2026

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Other Businesses in This Area

Clearly Water Solutions

High Water Solutions

PureSpring Water Softeners & Filters

WATER FILTRATION SUPPLY

15½+ years online
waterfiltrationsupply.com/about-usGet a Free Quote

Aptus Home Services, HVAC, Plumbing & Electric

5.03½+ years online
aptushomeservices.com

Flowtech Tankless

5.0~3 years online
flowtechtankless.com

Grace Plumbing and Water Filtration LLC

5.02½+ years online
graceplumbingco.comGet a Free Quote

H.M. Northcutt Corporation

5.023½+ years online
hmnorthcutt.com

Palmetto Plumbing, Drain Cleaning & Water Heater Repair

5.01+ year online
callpalmettoplumbing.com

Water Purification Technologies

5.03 mo online
waterpurificationtech.com

Wellness Water Filtration Systems

5.05½+ years online
wellnesswaterfiltrationsystems.com/charleston-sc

Charles Towne Plumbing

4.9~2 years online
charlestowneplumbing.com

Coastal Empire Water

4.913 years online
coastalempirewater.com

LimRic Plumbing, Electrical, Heating & Air

4.914½+ years online
limric.com

Pardee Service Experts

4.9~27 years online
serviceexperts.com/charleston-sc

R&E Home Solutions

4.910½+ years online
randehomesolutions.com

ARS / Rescue Rooter

4.429+ years online
ars.com/charleston

Ferguson Plumbing Supply

4.4~27 years online
ferguson.com/store/sc/north+charleston/plumbingpvf-0023Get a Free Quote

Purpose Plumbing

4.44½+ years online
purposeplumbingsc.com

Kinetico Advanced Water Systems

4.0~5 years online
kineticoadvancedwatersystems.com/locations/charleston-sc

Charleston Water System

1.820½+ years online
charlestonwater.com

Water Treatment & Softeners in Nearby SC Cities

About Water Treatment & Softeners in Charleston

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 Charleston?
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 Charleston?
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 Charleston?
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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