4.4 
31 *The Angi rating for Water Softener Service companies in O Fallon, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Softener Service needs.
*The HomeAdvisor rating for Water Softener Service companies in O Fallon, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Softener Service needs.
Last update on January 26, 2026
Serving O Fallon, MO and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Very courteous, flexible in schedule. Quickly installed water softener."
+34
Serving O Fallon, MO and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"Came promptly and replaced our 17 year old water softener in a few days. Detail oriented and very pleasant."
+28
Serving O Fallon, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Warranties offered
"Excellent job installing our water softener."
Serving O Fallon, MO and surrounding areas
Approved (Corporate)
In business since 2020
Free estimates
Warranties offered
"They came out right away and gave me an estimate and they were able to install my water softener within the week."
+44
Serving O Fallon, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Emergency services offered
Warranties offered
"Remove electric water heater and install a new high efficiency gas water heater."
+10
Serving O Fallon, 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!!"
+7
Serving O Fallon, MO and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
Anton's has been in business for 43 years and maintains an A+ rating with the BBB. We have the highest Google rating in St. Louis. We offer manufacture rebates, and flexible financing for all your home projects! We currently employ 72 team members who receive customer service training twice per week. Our service technicians have been professionally trained on our 6 step Anton's service system to ensure our customers receive the same GREAT service at a GREAT price each and every visit!! We provide upfront pricing and don't complete any repairs with out approval. We offer FREE Lifetime Maintenance to Veterans and First Responders through our Anton's Heroes Program + Senior Discount- $10 off a service or $100 off complete new system
Serving O Fallon, MO and surrounding areas
Approved
In business since 2000
Credit card accepted
Offers commercial services
You can expect our technicians to provide timely service, a clear explanation of the work to be performed, and upfront pricing. We focus on providing industry best customer service from start to finish. Our technicians are insured, licensed and bonded.
+1
Serving O Fallon, MO and surrounding areas
In business since 1995
Free estimates
Emergency services offered
"We all know water softener salesmen are unique. Everett was knowledgeable and easy to work with. We feel like we received a great value for the money and appreciated the follow up after the job was completed. I 100% would do business again with the Jones family."
+8
Serving O Fallon, MO and surrounding areas
In business since 1929
Emergency services offered
"Had Nick Rattini as our technician - great job overall. I wanted to replace our Rheem 40 gallon water heater with a Rheem 50 gallon water heater and Burke Plumbing will let you use customer supplied appliances - up front charge was $640 which is competitive, my assumption is that price includes an extra $100 for using a customer supplied heater. They added another $100 for modifying the existing plumbing to accommodate the larger tank which, in my mind, was reasonable. They showed up on time and the installation took about 2 hours. I had hot water one hour later. All in all, very pleased with the experience from Burke Plumbing which has been around since the 1930s."
From average costs to expert advice, get all the answers you need to get your job done.
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