
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
Most pros respond within 2–24 hours
Verified Pro Installers
Other Businesses in This Area
Better Water Warehouse
LOUISVILLEWATER
Wellness Water Filtration Systems
5½+ years onlineCrescent Hill Filter Plant
5.0Original Pure Water
5.012½+ years onlineWater Energizers, Inc.
5.029½+ years onlineSanders Water Heaters And Plumbing
4.95+ years onlineDauenhauer Plumbing Heating Air & Electric
4.824+ years onlineGreenwell Plumbing Heating & Air
4.8~10 years onlineJarboe's Heating, Cooling & Plumbing
4.825 years onlineMaeser Master Services
4.828+ years onlinePeterman Brothers Heating Cooling Plumbing
4.8~20 years onlineTom Drexler Plumbing, Air & Electric
4.823½+ years onlineCulligan Water Systems
4.313½+ years onlineLeafFilter Gutter Protection
4.124½+ years onlineUltra Pure Water Technologies
4.0Blackburn & Davis Inc
3.57½+ years onlineHyland Filter Service - Hvac Air Filter Replacement & Maintenance
3.4~17 years onlineKoch Filter
3.329+ years onlineKentucky Filter and Service Corporation
3.0RainSoft of Greater Kentucky
3.01½+ years onlineChanson Water USA
2.317½+ years onlineLouisville Water Company
1.4~27 years onlineWaterlogic USA
1.0Water Treatment & Softeners in Nearby KY Cities
Other Services in Louisville
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+.
- 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.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Louisville and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.

