Top-rated water treatment & purification system repair or service pros.

Get matched with top water treatment & purification system repair or service pros in Saint-Louis, MO

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Water treatment & purification system repair or service pros in Saint-Louis

Avatar for Jones Air & Water, LLC
Jones Air & Water, LLC
4.7(
144
)
Water Treatment & Purification System - Repair or Service

Serving Saint-Louis, MO and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Did a great job of explaining the entire system and how it works. Took time to answer my questions about the purification system and the water softener systems. Show up at the time they said they would be here to do the job and completed the job in a professional and efficient matter. I would recommend them without hesitation."
Our Installations
Our Installations
Our Installations
Our Installations
Our Installations

+34

Response time1 day
Response rate98%
Recommended by95%of homeowners
Avatar for Dunn Heating Air Conditioning and Plumbing
Dunn Heating Air Conditioning and Plumbing
4.7(
274
)
Water Treatment & Purification System - Repair or Service

Serving Saint-Louis, MO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"This was a complex retrofit tankless water heater installation and out of 30+ companies called and solicited for this project, Brett and Dunn's HVAC was the only company to 1) entertain performing the installation correctly (gas line sizing and calculations), 2) had prior experiencing working with tankless heaters, and 3) took the time to work with me on a long list of specifications. These are bulletproof systems if the installation is done correctly and Dunn/Brett took the time to ensure the install was on point and everything went smoothly. They also installed a softener and filtration system. Everything went well from bid to install and I highly recommend Brett and Dunn's - will use again as I could not be more pleased!"
Additional Photos
Response time2 days
2 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for MAPLEWOOD PLUMBING
MAPLEWOOD PLUMBING
4.8(
337
)
Water Treatment & Purification System - Repair or Service

Serving Saint-Louis, MO and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"When we explained to Nicky that we had to turn off the water to the entire house, she was able to get a plumber out to the house that afternoon. Our serviceman was Aaron. He was on time, courteous, knowlegeable and quick. He replaced the two turn off valves under the kitchen sink and also installed the new faucet and sprayer we had purchased. We were very pleased with his work and the attention to our emergency by the office staff. Our kitchen water supply was returned to normal very promptly. Aaron left the worksite clean and neat. Thank you to everyone who responded to our need."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Liberty Heating & Cooling
Liberty Heating & Cooling
4.8(
46
)
Water Treatment & Purification System - Repair or Service

Serving Saint-Louis, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Emergency services offered

Warranties offered

"Called Sam on Friday for quote for water heater replacement. Said he could do Monday afternoon or Tuesday morning. Received call Monday morning to see if he could come on over to do replacement, what a pleasant surprise! Sam arrived shortly after with water heater we discussed & all supplies needed , no running around to pickup stuff. Job completed in timely manner. Old unit hauled off and job site all cleaned. That’s a big deal to me. Will not hesitate to recommend Liberty to friends & relatives ! Thanks Sam , Dave & Roxanne"
A/C replacement
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+10

6 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Mr. Rooter Plumbing of St. Louis
Mr. Rooter Plumbing of St. Louis
4.2(
351
)
Water Treatment & Purification System - Repair or Service

Serving Saint-Louis, MO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"The technician was honest and said that the water heater is in good working condition not needing any repairs or replacement We were told the opposite by another company!!! They have indicated that it needs replacement!!"
Mr Rooter Neighborly Hub for Home Services
Courteous, Uniformed Professionals.
Keep your home clean with mats and shoe covers.
Provide a price before we start.
Revolutionary Drain Cleaning Services

+7

Response time1 day
97 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Winnovation Plumbing and Drain
Winnovation Plumbing and Drain
5.0(
7
)
Water Treatment & Purification System - Repair or Service

Serving Saint-Louis, MO and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"This is a good company to deal with. James, the owner, was out within one hour to diagnose our problem. The next morning the technicians, Brian and Josh were out to take care of our drain issues. Brian made a point of showing me the camera footage of the main drain. The did a great job on the main and two other drains. They also cleaned up very well when they were done. Brian also noticed an issue with our bathtub stopper and fixed it without an extra charge. The pricing was transparent. They have a nice email notice system and called when they were on the way. The three men I worked with were all very professional and easy to deal with. I would not hesitate to use them again. Phil Lykens"
Water heater install
Shower Valve replacement
Shower Valve replacement
Stack replacement!
Stack replacement!

+3

15 neighbors recently requested a quote
Avatar for Jones Air & Water, LLC
Jones Air & Water, LLC
4.6(
90
)
Water Treatment & Purification System - Repair or Service

Serving Saint-Louis, MO and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Everett Jones of Jones Air & Water did a great job of installing my new water softener, carbon filter, UV light, and drinking water reverse osmosis system. The quality of the installation was great, and his team was very professional."
Next-r/o high production, quick recovery
 Jet pump & Fibrglass pressure tank
 Salt Free Chlorine Free Chemical Free Pool Treatm
 A.O. Smith Heat Pump Water Heater
 Bauer Twin Tank Water Softener

+8

Response time6 days
Recommended by95%of homeowners
Avatar for BURKE PLUMBING CO
BURKE PLUMBING CO
4.8(
153
)
Water Treatment & Purification System - Repair or Service

Serving Saint-Louis, MO and surrounding areas

In business since 1929

Emergency services offered

"Dan arrived early, agreed with my diagnosis of the problem with the first toilet (worn washer) but explained why replacement of the innards would probably be a better, longer lasting solution than trying to repair the 70 year old mechanism, which is what I had suggested it needed. I agreed with his analysis, and the repair was made quickly with parts he had in his truck. While he was doing that work, he gave me some tips on how to repair the sticky bathtub drain lever, should I ever want to do that myself. I then asked for advice on a peculiar flushing behavior on the toilet in another bathroom. His description of probable causes, and the reason why replacement of the toilet was probably the best long term solution, was completely understandable. But I related my perfectly awful experience with a low volume toilet 20-plus years ago, and explained why we were looking at the 6 gallon toilet I'd scrounged to replace the worthless one. His description of their experience with the reliability of the toilet brand they recommend, and the design changes that had been made to achieve that reliability, was persuasive, and I decided to do the replacement. Dan had to go get the new toilet, but the removal and installation went very smoothly, and he was done pretty much within the original window they had predicted for the job I called them to do. All old parts were taken away, and the work areas were left perfectly clean. I thought the bill was quite reasonable for the work and advice I received. And after more than a week, the new toilet is working perfectly. I could not have asked for a better service experience, and will certainly call Burke first if I need (or even think I need) plumbing work done in the future."
Recommended by98%of homeowners
Avatar for Mayo Plumbing Co
Mayo Plumbing Co
4.8(
481
)
Water Treatment & Purification System - Repair or Service

Serving Saint-Louis, MO and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"Mayo plumbing is amazing! We called John for a leak from our main water line in our basement. He rearranged his schedule to fit us in & didn’t leave until the job was done. He was able to fix the leak with a less invasive method than what another plumbing company we had already contacted quoted us. Many thanks to John! If we ever need plumbing work again, he will be our only call!"
Additional Photos
Additional Photos
1
2
3

+3

Recommended by96%of homeowners
Showing 1-10 of 27
FAQs for water treatment & purification system repair or service projects in Saint-Louis, MO

If your water softener is over 10 years old or if repair costs approach the price of a new unit, it might be time to replace it. Most water softeners last between 10 and 15 years. Replacing an aging unit can improve your water quality and help you avoid frequent repair costs. For a newer system with minor issues, repairing may be the best option. Consider the age and condition of your system to decide what's most cost-effective.

Water treatment systems remain dependable for 10 to 20 years with proper maintenance and care. A well-maintained system secures full performance by following a scheduled upkeep plan and professional inspections. Consistent maintenance guarantees continuous water purification, ensuring that the system operates at its peak efficiency and delivers high‑quality water throughout its lifespan.

Faulty water softeners exhibit clear symptoms that signal the need for immediate attention. Noticeable mineral build-up around faucets, discolored water, dry or itchy skin following a shower, and altered laundry texture indicate that the system is underperforming. Recognizing these issues early and addressing them promptly prevents further damage and maintains optimal water quality. Early intervention ensures that your water system continues to operate reliably and efficiently.

The Saint-Louis, MO homeowners’ guide to water treatment & purification system repair or services

From average costs to expert advice, get all the answers you need to get your job done.