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Top-Rated Water treatment pros in Rancho Santa Margarita - Updated Nov 2026

Avatar for CUSTOM H 2 0
CUSTOM H 2 0
5.0(
33
)
Water Treatment & Purification System - Install or Replace

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"This company is amazing! I just purchased a complete soft water and RO system to replace my 23 year old Ecowater system. Chris, who’s the company owner took the time to explain all my options in detail. He was extremely detailed and reliable throughout the entire process. Though they were booked out 3 weeks, he made special accommodations by installing my new system himself within one week of his initial home visit estimate. Chris was very meticulous to perfection. He’s fair and honest! Great experience throughout the process!!"
Response time9 hrs
Response rate95%
32 neighbors recently requested a quote
Avatar for WATER HEATER SOS
WATER HEATER SOS
5.0(
17
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"I have a tankless water heater that was giving an error code and i had no hot water! The tech that came out was very nice and knowledgeable. Im glad to report i now have hot water again. As a side note I talked with the tech about water treatment options and a RO system and as long as my husband agrees I will be having them install both items!!"
Phyn Install
Phyn Install
Water Heater
Water Heater
Response time8 hrs
Response rate98%
30 neighbors recently requested a quote
Avatar for Aztec H2O Services
Aztec H2O Services
5.0(
10
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Aztec H2O provided a high quality water softener and the install was impressive. Stephen, the owner was very meticulous and took his time to explain the function of the Pentair unit. Best of all, he was a fraction of the cost of other water systems like EcoWater, Culligan, and Life Source! Please call Stephen first!"
Residential Installation
Reverse Osmosis System
Water Softener + Carbon Filter Combo
Hydra-Shield Water System
Company Service Truck

+1

Response time12 hrs
Recommended by100%of homeowners
Avatar for ROOTER ER & PLUMBING INC
ROOTER ER & PLUMBING INC
4.6(
24
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"I was in dire need of a plumber because the valve that adds water to my pool was broken and it would not shut off. We had to shut off the water to my house to prevent flooding of the pool. Enter Rooter ER & Plumbing to the rescue. He was extremely knowledgeable about what was required just by looking at the picture I sent over the phone. He gave me options and quite reasonable prices. Doing the work, he was extremely efficient and thorough. He would not stop until it was up to a standard that he expected of himself for his own home. When I went out to look at/inspect his work, he was extremely patient and he explained to me everything that he had done and the benefits of getting this done. Being a complete novice in the realm of plumbing, I was extremely grateful for him taking the time to explain this to me. I was extremely happy with his work, and I would recommend him to anyone that needs a friendly neighborhood plumber."
tankless water heater uo to code
storm drain
same as above
gas line install
gas line install

+6

Response time11 hrs
Response rate94%
4 neighbors recently requested a quote
Avatar for COASTLINE HOME PROS INC
COASTLINE HOME PROS INC
5.0(
6
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

We take pride in serving the vibrant communities of South Orange County, and we understand the unique plumbing challenges that homeowners in this area may face. Whether it's addressing hard water issues prevalent in the region, performing sewer line inspections to prevent root intrusions, or offering eco-friendly plumbing solutions, our expertise is tailored to the specific needs of South Orange County residents. \n \nTrust Benjamin Franklin Plumbing of South Orange County to safeguard your pipes and preserve the integrity of your plumbing system. With our unwavering dedication to quality, reliability, and customer satisfaction, you can feel confident that your home is in capable hands.

Gallery
Full bathroom Remodel
Full bathroom Remodel
Bathtub Full Remodel
Bathtub Full Remodel

+4

94 neighbors recently requested a quote
Avatar for Team Rooter Orange County, Inc.
Team Rooter Orange County, Inc.
4.4(
32
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I received excellent service from the Team Rooter crew to fix a major sewer line problem. I'm grateful for the professional treatment and honest work. I have finally found a plumbing company I can trust and will only use them in the future"
Hydrojetting Service
Clogged Drains
Clogged Drains
Clogged Drains
Clogged Drains

+25

Response time8 hrs
Response rate92%
3 neighbors recently requested a quote
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