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*The Angi rating for Water Softener Service companies in Saint Charles, 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 Saint Charles, 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 November 24, 2025
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Ambassador Plumbing L.L.C
Ambassador Plumbing L.L.C
Master Plumber with over 19 years experience for ALL Plumbing Needs! We pride ourselves on the quality work we provide, while delivering great customer service! Call or click to schedule an estimate today! Install, repair, and maintain pipes, valves, fittings, drainage systems, and fixtures on commercial and residential structures. Collaborate with general contractors, electricians, and other construction professionals. Follow building plans and blueprints. Respond to, diagnose, and resolve plumbing emergencies. IF WATER RUNS TO IT OR THROUGH IT, WE DO IT!!!
"Great job. Excellent service."
Lance H on September 2024
Master Plumber with over 19 years experience for ALL Plumbing Needs! We pride ourselves on the quality work we provide, while delivering great customer service! Call or click to schedule an estimate today! Install, repair, and maintain pipes, valves, fittings, drainage systems, and fixtures on commercial and residential structures. Collaborate with general contractors, electricians, and other construction professionals. Follow building plans and blueprints. Respond to, diagnose, and resolve plumbing emergencies. IF WATER RUNS TO IT OR THROUGH IT, WE DO IT!!!
"Great job. Excellent service."
Lance H on September 2024

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services
Tiger Plumbing, Heating, Air Conditioning, & Electrical Services
Tiger Plumbing, Heating, Air Conditioning, & Electrical Services takes pride in being your preferred local plumbers, electricians, and HVAC technicians! In fact, more homeowners in the St. Louis Metro East & Central Illinois communities we serve, say they would call us again before any other plumbing, electrical, heating, or air conditioning service!
"This company is outstanding. I can not sing them enough praises."
Jacqueline W on May 2025
Tiger Plumbing, Heating, Air Conditioning, & Electrical Services takes pride in being your preferred local plumbers, electricians, and HVAC technicians! In fact, more homeowners in the St. Louis Metro East & Central Illinois communities we serve, say they would call us again before any other plumbing, electrical, heating, or air conditioning service!
"This company is outstanding. I can not sing them enough praises."
Jacqueline W on May 2025

Tri-State Water, Power & Air
Tri-State Water, Power & Air
In business since 1992, Tri-State prides itself on providing top notch services and products to it's many customers. Our Service Plumbing team is ready and willing to tackle your project - be the need immediate or not. Simply reach out and we will dispatch a technician immediately to provide a quote and solve your problem!
"Only rating 1 because it doesn't go lower. Had a new unit installed end of Sept 24. First time power goes out on 11/5, no electricity. When tri state sells you a product, they pitch their amazing customer service with all these guarnatees of knowing when your unit is out before you know and having someone there within 24 hours etc. Well, the first call we make we are told it will be the end of Nov to get someone out to look at it. 3 weeks. Nobody shows up. Then we get a call that says "your appointment on Dec 12 has been canceled and the earliest we can get to you is Jan 16th. This is 2.5 months wait to get service to fix a nearly $20k unit, that is upcharged because of the excellent service. You can't get anyone to answer your call. you wait on hold for 20 minutes, then have to leave a voicemail in which you will not get called back. Based on my experience, find someone else and pay less. Even if the service is bad, which it can't be worse than this, you save money! @kohler"
Jerry B on December 2024
In business since 1992, Tri-State prides itself on providing top notch services and products to it's many customers. Our Service Plumbing team is ready and willing to tackle your project - be the need immediate or not. Simply reach out and we will dispatch a technician immediately to provide a quote and solve your problem!
"Only rating 1 because it doesn't go lower. Had a new unit installed end of Sept 24. First time power goes out on 11/5, no electricity. When tri state sells you a product, they pitch their amazing customer service with all these guarnatees of knowing when your unit is out before you know and having someone there within 24 hours etc. Well, the first call we make we are told it will be the end of Nov to get someone out to look at it. 3 weeks. Nobody shows up. Then we get a call that says "your appointment on Dec 12 has been canceled and the earliest we can get to you is Jan 16th. This is 2.5 months wait to get service to fix a nearly $20k unit, that is upcharged because of the excellent service. You can't get anyone to answer your call. you wait on hold for 20 minutes, then have to leave a voicemail in which you will not get called back. Based on my experience, find someone else and pay less. Even if the service is bad, which it can't be worse than this, you save money! @kohler"
Jerry B on December 2024
Mr. Rooter Plumbing of Franklin Co
Mr. Rooter Plumbing of Franklin Co
At Mr. Rooter® Plumbing every customer’s individual needs are important. Whether it’s a simple sink clog or a damaged sewer line, you can count on a Mr. Rooter plumber to take care of your plumbing needs – day or night – with never an overtime charge. Our professional service, quality products and honest, up-front pricing make Mr. Rooter the best value in plumbing services nationwide. Mr. Rooter is ready for all emergency plumbing issues, from clogged drains and sewage backups to frozen pipes and leaking water heaters. You can count on an expert diagnosis from Mr. Rooter with our camera inspection tools. Then we’ll fix it right the first time, whether it takes HydroScrub® drain cleaning or trenchless pipe repair, with courteous smiles on our faces. There's a reason they call us Mr.® Call your local Mr. Rooter today.
At Mr. Rooter® Plumbing every customer’s individual needs are important. Whether it’s a simple sink clog or a damaged sewer line, you can count on a Mr. Rooter plumber to take care of your plumbing needs – day or night – with never an overtime charge. Our professional service, quality products and honest, up-front pricing make Mr. Rooter the best value in plumbing services nationwide. Mr. Rooter is ready for all emergency plumbing issues, from clogged drains and sewage backups to frozen pipes and leaking water heaters. You can count on an expert diagnosis from Mr. Rooter with our camera inspection tools. Then we’ll fix it right the first time, whether it takes HydroScrub® drain cleaning or trenchless pipe repair, with courteous smiles on our faces. There's a reason they call us Mr.® Call your local Mr. Rooter today.

Tony LaMartina Plumbing Company Inc
Tony LaMartina Plumbing Company Inc
Tony LaMartina Plumbing Company is a residential plumbing company with an established reputation of providing superior plumbing services to St. Louis homes for over 40 years. We are committed to delivering the highest quality plumbing services to our customers. Our commitment requires us to be the best in our industry at using our superior mechanical skills to solve our customer’s problems, resulting in a highly responsive and satisfying service experience.
"My kitchen sink faucet was leaking and needed to be replaced. I called Tony LaMartina because they are in my area and had a very good rating. The plumber came out and asked if I had a new faucet. When I didn't (I wouldn't have known what kind to get), the plumber said they did not have any faucets available and he would have to go buy one and it was going to cost more. He was back in a very short time. It only took him 30 minutes to put in the new faucet. After he finished , he told me the cost was $686 which was way more than I expected. I called the office twice to get a receipt to see why it was so much. I was told they do not separate their receipts between labor and materials. After talking to a couple of plumbers, I was told that amount was indeed way more than it should have been. I will never call them again."
Lynn M on December 2023
Tony LaMartina Plumbing Company is a residential plumbing company with an established reputation of providing superior plumbing services to St. Louis homes for over 40 years. We are committed to delivering the highest quality plumbing services to our customers. Our commitment requires us to be the best in our industry at using our superior mechanical skills to solve our customer’s problems, resulting in a highly responsive and satisfying service experience.
"My kitchen sink faucet was leaking and needed to be replaced. I called Tony LaMartina because they are in my area and had a very good rating. The plumber came out and asked if I had a new faucet. When I didn't (I wouldn't have known what kind to get), the plumber said they did not have any faucets available and he would have to go buy one and it was going to cost more. He was back in a very short time. It only took him 30 minutes to put in the new faucet. After he finished , he told me the cost was $686 which was way more than I expected. I called the office twice to get a receipt to see why it was so much. I was told they do not separate their receipts between labor and materials. After talking to a couple of plumbers, I was told that amount was indeed way more than it should have been. I will never call them again."
Lynn M on December 2023

Environmental Testing & Research Laboratories, Inc
Environmental Testing & Research Laboratories, Inc
ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.
"as advertised"
Nancy C on July 2018
ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.
"as advertised"
Nancy C on July 2018

OJ Laughlin Plumbing Co Inc
OJ Laughlin Plumbing Co Inc
O.J. Laughlin Plumbing Company, Inc. is a full service plumbing company with a known and respected reputation throughout the greater St. Louis area. Equipped to service both residential and commercial repair work, we are backed with superior parts and a staff of licensed plumbers who provide years of knowledge and experience. Celebrating our 65th year in business, we take pride in continuing the business practices of our founder Oliver J. Laughlin. Treat people like you want to be treated, and do work for someone else the same way you would do it for yourself. We are pleased to announce that O.J. Laughlin Plumbing Company, Inc. has, once again, been nominated for the 2016 Subcontractor Award in the MEP Category by the Midwest Council of the American Subcontractors Association. We were also awarded the Better Business Torch Award for 2015 and carrying an A+ rating with the BBB. Let us show you why we have become one of the most respected and reliable plumbing companies in the St. Louis area. Call us now at (636) 225-0992 or (314) 961-7327.
"It wass wonderful, price is reasonable and they did the job just the way u wanted to."
LINDA W on September 2021
O.J. Laughlin Plumbing Company, Inc. is a full service plumbing company with a known and respected reputation throughout the greater St. Louis area. Equipped to service both residential and commercial repair work, we are backed with superior parts and a staff of licensed plumbers who provide years of knowledge and experience. Celebrating our 65th year in business, we take pride in continuing the business practices of our founder Oliver J. Laughlin. Treat people like you want to be treated, and do work for someone else the same way you would do it for yourself. We are pleased to announce that O.J. Laughlin Plumbing Company, Inc. has, once again, been nominated for the 2016 Subcontractor Award in the MEP Category by the Midwest Council of the American Subcontractors Association. We were also awarded the Better Business Torch Award for 2015 and carrying an A+ rating with the BBB. Let us show you why we have become one of the most respected and reliable plumbing companies in the St. Louis area. Call us now at (636) 225-0992 or (314) 961-7327.
"It wass wonderful, price is reasonable and they did the job just the way u wanted to."
LINDA W on September 2021

Aqua Systems of Sullivan
Aqua Systems of Sullivan
Equipment Rental and in house financing available. We accept credit cards and often will offer open terms.
"They were great! Very prompt and professional, provided the pros and cons of the different systems, and no pressure to buy or make a decision. Would hire them again in a heartbeat!"
Eric F on February 2019
Equipment Rental and in house financing available. We accept credit cards and often will offer open terms.
"They were great! Very prompt and professional, provided the pros and cons of the different systems, and no pressure to buy or make a decision. Would hire them again in a heartbeat!"
Eric F on February 2019
MISSOURI FURNACE & AIR CONDITIONING COMPANY
MISSOURI FURNACE & AIR CONDITIONING COMPANY
We are a family owned and operated business since 1972. Missouri Furnace & Air Conditioning Company has maintained an A+ rating with the BBB since 1991. We provide 24 hour emergency service 7 days a week. A live person is always available to take your call. Our finance department handles all of your financing needs throughout the process.
"I have had nothing but perfect experiences with Missouri Furnace and Air Conditioning. They installed my boiler heater furnace in 2006 and my air conditioning unit in 2009, and I have used them ever since for the maintenance and service on both. Their customer service personnel are so nice and they get your service call scheduled very promptly. If there is any sort of emergency they will arrange to get a technician to your house the same day if at all possible. The knowledge and expertise of the service technicians is top of the line, and the technicians are always willing to fully explain the work that they are doing in terms that I can understand. Missouri Furnace & Air Conditioning is a truly exceptional company and I would never trust the care of my heating and cooling systems to anyone else. I give them my highest recommendation!"
Alana R on November 2023
We are a family owned and operated business since 1972. Missouri Furnace & Air Conditioning Company has maintained an A+ rating with the BBB since 1991. We provide 24 hour emergency service 7 days a week. A live person is always available to take your call. Our finance department handles all of your financing needs throughout the process.
"I have had nothing but perfect experiences with Missouri Furnace and Air Conditioning. They installed my boiler heater furnace in 2006 and my air conditioning unit in 2009, and I have used them ever since for the maintenance and service on both. Their customer service personnel are so nice and they get your service call scheduled very promptly. If there is any sort of emergency they will arrange to get a technician to your house the same day if at all possible. The knowledge and expertise of the service technicians is top of the line, and the technicians are always willing to fully explain the work that they are doing in terms that I can understand. Missouri Furnace & Air Conditioning is a truly exceptional company and I would never trust the care of my heating and cooling systems to anyone else. I give them my highest recommendation!"
Alana R on November 2023

Bono Plumbing
Bono Plumbing
Bono Plumbing has been in business since 2014 as a plumbing contractor for a full range of residential and small commercial service and installation work. We offer free estimates to our VIP members or they are $49 that will go towards the job once completed. We also have discounts for senior citizens 65 years and over and active military. Fix it right with the first-time guarantee, floor & home protection booties and drop clothes, and up-front pricing so there are no surprises. Our service area is Lincoln County, St. Charles County, Warren County, and West St. Louis County.
"Tony and Kyle were very professional and polite. They were very informative and did a great job with our repair. We would definitely recommend Bono Plumbing."
Laurie M on December 2020
Bono Plumbing has been in business since 2014 as a plumbing contractor for a full range of residential and small commercial service and installation work. We offer free estimates to our VIP members or they are $49 that will go towards the job once completed. We also have discounts for senior citizens 65 years and over and active military. Fix it right with the first-time guarantee, floor & home protection booties and drop clothes, and up-front pricing so there are no surprises. Our service area is Lincoln County, St. Charles County, Warren County, and West St. Louis County.
"Tony and Kyle were very professional and polite. They were very informative and did a great job with our repair. We would definitely recommend Bono Plumbing."
Laurie M on December 2020
The Saint Charles, MO homeowners’ guide to water softener services
From average costs to expert advice, get all the answers you need to get your job done.

How much a water softener costs depends on your home’s size, and the system’s type and capacity. Our expert guide explores all the price factors.

On average, a reverse osmosis water filter costs around $2,200, but there are a few variables that impact the total price. Learn about them in this guide.

Water softener repair costs can add up, but they’re almost always worthwhile. Use this guide to see what your project is going to cost before you get started.

Water softeners last up to 25 years, but maintenance, usage, and other factors can affect the life span. Learn more about how long water softeners last.

Discover how to choose a water softener with tips from our expert guide. Ensure your home has clean, soft water with the right system for your needs.

How can you tell if you have hard water? Fixing a hard water problem will not only preserve the life of your favorite fabrics, glassware, and appliances, it’ll protect your skin from absorbing harmful minerals. Learn the telltale signs of hard water.
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