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Top-Rated Water treatment pros in Simi Valley - Updated Nov 2026

Avatar for Chajon Plumbing
Chajon Plumbing
4.9(
52
)
Water Treatment & Purification System - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Giovanni was very professional, arrived on time, and kept in contact by phone and message about arrivals, needed equipment, and expected work. He was careful to explain what needed to be done and why and approached work with a positive attitude. The job involved replacing some valves on an exterior faucet set on copper pipes. Afterward, he noticed that the house water pressure was high and found that the regulator was not working so I had him replace that. Overall this was a very positive experience and I would say he is one of the good guys. Give him a call if you need some plumbing work done."
Before and after
Before and after
Before and after
You always have to Check for leaks
Start at the foundation to build up something

+17

Response time20 mins
Response rate95%
1 neighbors recently requested a quote
Avatar for Pure Water Filtration
Pure Water Filtration
5.0(
5
)
Water Treatment & Purification System - Install or Replace

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

With 50 years of combined experience, we at Pure Water Filtration pride ourselves on being the best in the industry. Our ability to design and install complex projects separates us from our competitors. We do everything from simple installs such as residential reverse osmosis to more complex commercial multi-unit apartment buildings or well water treatment. For pure, healthy water, we have a solution for any budget. We use American-made products, allowing us to offer the best warranties in the industry. All of our products meet NSF and ANSI standards. Pure Water Filtration has a close relationship with the California State Drinking Water Program and local testing laboratories. We guarantee you will be satisfied when choosing Pure Water Filtration as your go-to water treatment specialist.

Plumbing Project
Water softener replacement
Commercial Water Softener and Carbon system
Unidyne Water Softener and Carbon Combo system
Water Softener and Backwashing Carbon system

+3

23 neighbors recently requested a quote
Avatar for Mifkis Plumbing
Mifkis Plumbing
4.8(
29
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Repipe sink drain
Repipe sink drain
Repipe sink drain
Unclog the toilet
Unclog the toilet

+2

Avatar for Dutton Plumbing, Cooling, Heating & Electric
Dutton Plumbing, Cooling, Heating & Electric
5.0(
5
)
Water Treatment & Purification System - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

Dutton Plumbing, Cooling, Heating & Electrical runs out of two locations, one in Simi Valley and one in Sylmar. We’ve been working out of this valley since 1987. From those two shops, we cover Ventura County, the San Fernando Valley, Santa Clarita, and Northern Los Angeles County. That’s plumbing, drain and sewer, water heaters, HVAC, and electrical, all handled by the same crews. Nearly four decades in the same region adds up. Our crews have been inside enough houses out here to recognize what a given neighborhood tends to do before they open anything up. Post-war ranch homes behave one way, newer builds behave differently, and we’ve seen it all.

3 neighbors recently requested a quote
Avatar for Team Rooter, Inc.
Team Rooter, Inc.
4.3(
10
)
Water Treatment & Purification System - Install or Replace

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"I had a backed up toilet and thank god Team Rooter came out on the same day I called and unclogged the toilet within 10 minutes. Plus the work comes with a 30 day warranty too. Thank you Team Rooter!!!"
Clogged Drain in Oxnard
Clogged Drain in Oxnard
Clogged Drain in Oxnard
Clogged Drain in Oxnard
Clogged Drain in Oxnard

+10

Response time5 hrs
Response rate97%
26 neighbors recently requested a quote
Avatar for AirWorks Solutions
AirWorks Solutions
5.0(
5
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

With 15+ years of serving Ventura County families, AirWorks is committed to excellence in everything we do. As a Family Run, Mom Approved HVAC & plumbing team, we show up with integrity, honesty, and the kind of care you’d expect from a neighbor. Our distinction is simple: high-quality work, accurate expertise, and a genuine commitment to your home’s comfort. From heating and cooling to plumbing repairs to air & water quality solutions, our Mom Approved team puts your needs first and treats your home like our own. Your peace of mind is the heart of our business.

Condensers
Fujitsu Mini Split
11 neighbors recently requested a quote
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