Water Works For Life, LLC
Verified Pro
3+ years online5.0(7)
Water Treatment & Softeners in Rockville, MD
Compare 34 water treatment & softeners contractors near you in Rockville 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
waterworksforlife.com
Aquafeel
Verified Pro
7½+ years online4.9(923)
Atlantic Blue Water Services
Verified Pro
24½+ years online4.9(1910)
National Water Service
Verified Pro
~22 years online4.9(542)
My Water Store
Verified Pro
13½+ years online4.8(258)
Other Businesses in This Area
Association of Water Technologies (AWT)
30½+ years onlineHeil Plumbing & HVAC
5.016½+ years onlineHYDRATECH LLC
5.011+ years onlineSERVPRO of Laurel and Greenbelt NE Beltsville E
5.029 years onlineWater Factory
5.0Carroll Water Systems
4.926+ years onlineService Force Plumbing
4.95 years onlineSERVPRO of Rockville and Silver Spring North
4.929 years onlineHassle Free Home Services
4.822½+ years onlineHome Air Services
4.827½+ years onlineRoto-Rooter Plumbing & Water Cleanup
4.8~29 years onlineUnited Air Temp
4.827+ years onlineUS Filter, Inc.
4.8Advanced Restoration Solutions
4.78½+ years onlineF.H. Furr Plumbing, Heating, Air Conditioning & Electrical
4.725½+ years onlineSuperior
4.76½+ years onlineVito Services
4.7~21 years onlineWaveMAX Laundry Rockville, MD
4.79½+ years onlineFamily Plumbing Services LLC
4.42½+ years onlineCongressional Aquarium
4.3~25 years onlineThos. Somerville Co.
4.327+ years onlineGaithersburg Plumbing Pros
4.17½+ years onlineWater Treatment & Softeners in Nearby MD Cities
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About Water Treatment & Softeners in Rockville
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 Rockville?
- 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 Rockville?
- 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 Rockville?
- 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 Rockville 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.