Water Treatment & Softeners in Louisville, KY

Compare 34 water treatment & softeners contractors near you in Louisville and surrounding area with an average rating of 4.2/5. Get free quotes, read reviews, and find the right pro for your project.

Last updated March 23, 2026

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Better Water Warehouse

Compass Filtration Services

6½+ years online
compassfiltration.comGet a Free Quote

LOUISVILLEWATER

Wellness Water Filtration Systems

5½+ years online
wellnesswaterfiltrationsystems.com/louisville-ky

Crescent Hill Filter Plant

5.0

Original Pure Water

5.012½+ years online
originalpurewater.com

Water Energizers, Inc.

5.029½+ years online
waterenergizers.com

Sanders Water Heaters And Plumbing

4.95+ years online
sanderswaterheatersandplumbing.comGet a Free Quote

Dauenhauer Plumbing Heating Air & Electric

4.824+ years online
dauenhauerplumbing.com/service-areas/louisville

Greenwell Plumbing Heating & Air

4.8~10 years online
greenwellservice.com

Jarboe's Heating, Cooling & Plumbing

4.825 years online
jarboes.com

Maeser Master Services

4.828+ years online
maeser.com

Peterman Brothers Heating Cooling Plumbing

4.8~20 years online
petermanhvac.com/louisville

Tom Drexler Plumbing, Air & Electric

4.823½+ years online
tomdrexlerplumbing.com

Culligan Water Systems

4.313½+ years online
kentuckianaculligan.com

LeafFilter Gutter Protection

4.124½+ years online
leaffilter.com/locations/kentucky/louisville

Ultra Pure Water Technologies

4.0

Blackburn & Davis Inc

3.57½+ years online
blackburnanddavis.com

Hyland Filter Service - Hvac Air Filter Replacement & Maintenance

3.4~17 years online
hylandfilter.com

Koch Filter

3.329+ years online
kochfilter.com

Kentucky Filter and Service Corporation

3.0

RainSoft of Greater Kentucky

3.01½+ years online
rainsoftofgreaterkentucky.com

Chanson Water USA

2.317½+ years online
chansonalkalinewater.com

Louisville Water Company

1.4~27 years online
louisvillewater.com

Waterlogic USA

1.0

Water Treatment & Softeners in Nearby KY Cities

About Water Treatment & Softeners in Louisville

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 Louisville?
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 Louisville?
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 Louisville?
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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