Eastside Repipe and Plumbing
Verified Pro
1½+ years online5.0(64)
Water Treatment & Softeners in Bellevue, WA
Compare 34 water treatment & softeners contractors near you in Bellevue 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
Most pros respond within 2–24 hours
Verified Pro Installers
Other Businesses in This Area
PureSpring Water Softeners & Filters
3 years onlineSpring Aqua
18+ years onlineHydroFLOW USA
5.0~16 years onlineKaizen Plumbing & Sewer, Bellevue
5.0Pure Water Northwest
5.010½+ years onlineSeattle Heating & Cooling
5.020½+ years onlineSweetwater LLC
5.0~22 years onlineWashington Water Heaters
5.023½+ years online2 Sons Plumbing, Sewer, Septic, Electric, Heating & Air
4.98½+ years onlineAlcorn Pump & Water Filtration
4.97½+ years onlineCustom Pure -The Water Store
4.9~28 years onlineEastside Plumbing, Sewer, Septic, Electric, Heating & Air - Issaquah
4.927+ years onlineEco Electric, Plumbing, Heating and Air
4.9~9 years onlineReady Rooter
4.93½+ years onlineClayton Aquarium Corporation
4.8~27 years onlineGreen House Plumbing and Heating
4.814+ years onlinePure Water NorthWest
4.810½+ years onlineRoto-Rooter Plumbing & Water Cleanup
4.8~29 years onlineOutToday Electrical, Heating, Plumbing, and Air
4.726½+ years onlinePurified Water
4.47½+ years onlineREI
4.430+ years onlineIndia Metro Hypermarket
4.3Pacific Plumbing Supply Company LLC - Bellevue Branch
4.329+ years onlineHD Fowler Company
4.2~31 years onlineWater Treatment & Softeners in Nearby WA Cities
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Water Treatment & Softeners in Bellevue, WA
Water treatment and softeners in Bellevue (WA) serves a Seattle-metro tech-heavy market: single-family homes, modern condos, apartment complexes, and tech-industry households. Typical jobs include whole-home water softeners, premium reverse-osmosis drinking-water systems (popular with tech), and commercial water treatment for data-center cooling tower water. Tech-industry premium drives approach.
Residential water softeners in Bellevue run $2,500-$6,000; premium reverse osmosis $1,800-$5,000; commercial $5,000-$50,000. Washington requires a Plumber Certification. Bellevue permits apply.
Frequently Asked Questions
- Is Bellevue water hard?
- Variable — testing recommended.
- Premium RO for tech-industry?
- Popular for taste and equipment longevity. $1,800-$5,000.
- Data-center cooling tower water?
- Specialized treatment. $25,000-$200,000.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Bellevue 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.