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Top-Rated Water treatment pros in Signal Hill - Updated Nov 2026

Avatar for Pro Water Solutions, Inc.
Pro Water Solutions, Inc.
4.9(
58
)
Water Treatment & Purification System - Install or Replace

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"Just had a water system installed, including RO, carbon and water softener. Only been running a few days so still have to see performance over long-haul. Brad has been very helpful so far and Jack and his team did a good job with the install. They've been responsive to questions, and also came back to install a water pressure regulator for a reasonable cost. So far, so good with ProWater."
Water Softener Carbon System Outdoors
Water Softener Carbon In Garage
Under sink reverse osmosis with upgraded insta hot
Water Filtration
Softener/Uv light

+14

Response time1 day
132 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Pure Water Filtration
Pure Water Filtration
5.0(
5
)
Water Treatment & Purification System - Install or Replace

Serving Signal Hill, 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

22 neighbors recently requested a quote
Avatar for Service Champions Plumbing, Heating & AC
Service Champions Plumbing, Heating & AC
4.4(
50
)
Water Treatment & Purification System - Install or Replace

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Kayvan was a wonderful service tech! He was on time and professionally checked out the water heater and the HVAC system. He was so polite and friendly. He explained the need for a new filter in the heating unit and showed me photos of the unit located in the attic. He also offered to do a friendly deed for free, which I greatly appreciated, He’s a great asset to Service Champions!"
Area Drain Cleaning
Plumbing
Plumbing
Garbage Disposal
Drain Cleaning

+13

Response time4 hrs
Recommended by79%of homeowners
Avatar for Clear All Rooter Plumbing
Clear All Rooter Plumbing
4.4(
473
)
Water Treatment & Purification System - Repair or Service

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"CARP is top-notch. Our water heater crashed, and we had no hot water. Number 1: Gaddiel gave me an estimate immediately based on pictures. Number 2: Jose and Ivan arrived the same afternoon and replaced my water heater. I couldn't be more grateful."
New Gas line
Trench
Metter connection
New earth Quake shut off Valve
New trench less  pipe

+92

Response time4 hrs
Response rate85%
30 neighbors recently requested a quote
Avatar for 3 Brothers Plumbing
3 Brothers Plumbing
5.0(
1
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

With over 5 years experience in the Plumbing industry, 3 Brothers Plumbing is your industry expert in the area . We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will mot leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. We have so many options to fit any budget. Give us a call today and we look forward to working with you!

Recommended by100%of homeowners
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