DrinkingWellCo
Verified Pro
~11 years online5.0(3)
Water Treatment & Softeners in Denver, CO
Compare 27 water treatment & softeners contractors near you in Denver and surrounding area with an average rating of 4.8/5. 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 onlineAlkagem
5.0~7 years onlineAquakleen Colorado *****
5.025+ years onlineAuqupure Water Filter
5.03+ years onlineKinetico Advanced Water Systems of Denver
5.0~5 years onlineTodd's Water Heater Repair - Install
5.06½+ years onlineWater Filter Guru
5.06+ years onlineWater Filtration System Aqualife Colorado
5.05½+ years onlineWater Works - Water Purification Company
5.014+ years onlineWellness Water Filtration Systems
5.02½+ years onlineCulligan of Brighton
4.914+ years onlineWater Pros
4.98½+ years onlineLeaf Home Water Solutions
4.8~15 years onlineWaterSource Pure Water & Ice
4.8~7 years onlineFloWater
4.66½+ years onlineCulligan of Denver
4.314½+ years onlineThe Source H2O
4.1~11 years onlinePureWater Dynamics, Inc.
4.023+ years onlineWater Treatment & Softeners in Nearby CO Cities
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About Water Treatment & Softeners in Denver
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 Denver?
- 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 Denver?
- 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 Denver?
- 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 Denver 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.