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Top-Rated Water treatment pros in Denver - Updated Nov 2026

Avatar for Watrdude Consulting
Watrdude Consulting
4.9(
47
)
Water Treatment & Purification System - Install or Replace

Serving Denver, CO and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"Previous water treatment service company "disappeared", resulting in a search for a competent and reliable firm. Chris arrived on time and performed the requested work in a prompt and workmanlike manner. In addition, he identified and corrected an issue I was not aware of at a very reasonable cost. Chris just became the "go-to guy" for my scheduled and unexpected water treatment system maintenance."
Commercial
Advanced Series Water Softener
Pro Series Reverse Osmosis - 5 stage
500 GPM Water Softeners
RO/DI system with pretreatment

+3

Response time1 day
6 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Leaf Home Water Solutions
Leaf Home Water Solutions
4.2(
202
)
Water Treatment & Purification System - Install or Replace

Serving Denver, CO and surrounding areas

Approved (Corporate)

In business since 2020

Free estimates

Warranties offered

"The technician came on time and, although it took him longer than expected to install the system, he installed it and demonstrated the system for me. The next day, I noticed there was still water on the concrete close to the system but, I figured it was residual water. Apparently the system was leaking. Two days after install I contacted Leaf and advised them that the system was leaking. Early, the next business day, they arrived and repaired the leak and made sure I was happy. My system seems to be working well and I am satisfied."
Leaf Home Water Solutions
Leaf Home Water Solutions
Will filtered water help me save money?
What does filtered water taste like?
How do I know what contaminants are in my water?

+44

144 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Franklee Plumbing LLC
Franklee Plumbing LLC
5.0(
13
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Denver, CO and surrounding areas

Approved

Free estimates

Offers commercial services

"If you’re looking for someone you can actually trust, Isaiah is the person to call. From the moment he arrived, it was obvious he genuinely cared about helping me make the right decision, not just making a sale. He took the time to educate me on my options for a whole home water filtration system and a tankless water heater, explaining the pros and cons of each without ever making me feel pressured. What impressed me most was how kind, honest, and knowledgeable he was throughout the entire process. He was the only contractor who took the time to truly educate me instead of just giving me a quote. I walked away feeling informed, cared for, and confident that I was making the best decision for my home. It’s rare to find someone who combines technical expertise with such genuine care for their customers. Isaiah is truly one of a kind, and I wouldn’t hesitate to recommend him to anyone looking for honest, client first service."
3 neighbors recently requested a quote
Avatar for Jim Needham Heating Cooling Plumbing & Drain
Jim Needham Heating Cooling Plumbing & Drain
4.5(
72
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Denver, CO and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Ben came out to our house. He immediately identified the problems we had with our hot water heater. He replaced the system and made it better what we had. It happened so fast. Totally surpassed any reasonable expectations. This guy is unbelievable. I am lucky to have called Jim Needham."
After
Furnace
Outdoor a/c (condensing) unit
Indoor furnace
Outdoor a/c (condensing) unit

+1

Response time2 days
18 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Pure Water Services
Pure Water Services
4.8(
14
)
Water Treatment & Purification System - Install or Replace

Serving Denver, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Patrick was the answer to my prayers! My water heater went out and I needed someone who could convert the old tank to a tankless system. My kids and I were without water for over a week because the first company I contacted was a no-call/no-show. But Patrick was able to stop by and provide an estimate the next day. Not only was Pure Water Services able to complete the work quickly but it did not cost an arm and a leg. I can not say enough good things about how Patrick helped out out when we really needed the help. I highly recommend him to anyone looking to do a water heater conversion!"
Bradford White Water Heater
Response time1 day
Response rate95%
35 neighbors recently requested a quote
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