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Find Water main install, replace or repairers in O Fallon

Avatar for Armstrong Plumbing

Armstrong Plumbing

4.55(
155
)
Approved Pro

Armstrong Plumbing

4.55(
155
)
Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
38 years of experience

ARMSTRONG PLUMBING is a full service company that can meet any of your plumbing needs. If you are looking for the most reliable and affordable plumber in the area call today to schedule an appointment with our professional plumbers! Ask about our preferred customer program. Financing available! Estimates based on size and scope of project. Please call (636) 530-7555 to call our office directly for an appointment.

"Prompt, knowledgeable, and efficient."

Terri C on January 2025

ARMSTRONG PLUMBING is a full service company that can meet any of your plumbing needs. If you are looking for the most reliable and affordable plumber in the area call today to schedule an appointment with our professional plumbers! Ask about our preferred customer program. Financing available! Estimates based on size and scope of project. Please call (636) 530-7555 to call our office directly for an appointment.

"Prompt, knowledgeable, and efficient."

Terri C on January 2025


Avatar for Parkers Plumbing, LLC

Parkers Plumbing, LLC

5.00(
11
)
Approved Pro

Parkers Plumbing, LLC

5.00(
11
)
Approved Pro
1 years of experience

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

"Parker's Plumbing technician was a fine example of how the company does business. Was prompt, very patient in explaining what he was doing and in and out just as fast. I will be asking for them again with any future projects. Five stars well deserved!"

Charles K on October 2025

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

"Parker's Plumbing technician was a fine example of how the company does business. Was prompt, very patient in explaining what he was doing and in and out just as fast. I will be asking for them again with any future projects. Five stars well deserved!"

Charles K on October 2025


Avatar for Hosack Plumbing Heating & Cooling

Hosack Plumbing Heating & Cooling

4.85(
318
)
Approved Pro

Hosack Plumbing Heating & Cooling

4.85(
318
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
123 local quotes requested

With over twenty-five years of experience in the industry, Hosack Plumbing Heating & Cooling is the right team to trust with all of your plumbing and heating and cooling needs. Our professional St. Louis technicians are highly skilled, extensively trained, extremely knowledgeable, and expertly proficient. We specialize in commercial and residential plumbing as well as residential heating and cooling. Our technicians will do everything possible to ensure that you have the most reliable and efficient plumbing and hvac systems possible.

"Mike was awesome, very knowledgeable and friendly. Efficiently got the furnace running as it should be! Even took the time to educate me on what the issue was and explained what he did to fix it. Highly recommend!"

Stephanie W on December 2025

With over twenty-five years of experience in the industry, Hosack Plumbing Heating & Cooling is the right team to trust with all of your plumbing and heating and cooling needs. Our professional St. Louis technicians are highly skilled, extensively trained, extremely knowledgeable, and expertly proficient. We specialize in commercial and residential plumbing as well as residential heating and cooling. Our technicians will do everything possible to ensure that you have the most reliable and efficient plumbing and hvac systems possible.

"Mike was awesome, very knowledgeable and friendly. Efficiently got the furnace running as it should be! Even took the time to educate me on what the issue was and explained what he did to fix it. Highly recommend!"

Stephanie W on December 2025


Avatar for Anton's Plumbing, Heating/Cooling & Energy Experts

Anton's Plumbing, Heating/Cooling & Energy Experts

4.78(
457
)
Approved Pro

Anton's Plumbing, Heating/Cooling & Energy Experts

4.78(
457
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
163 local quotes requested

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 0% financing for up to 60 months! 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 are the only company in St. Louis to offer lifetime warranty on repairs for our UP plan members!!!! Senior Discount- $10 off a service or $100 off complete new system Emergency Service phone number- 314-499-8400

"Very proffesional and knowledgeable. Very informative and friendly. After the inspection informed that my furnace was in very good condition. I have this same comment about all of Anton's service men that have come to my house."

Ralph T on January 2026

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 0% financing for up to 60 months! 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 are the only company in St. Louis to offer lifetime warranty on repairs for our UP plan members!!!! Senior Discount- $10 off a service or $100 off complete new system Emergency Service phone number- 314-499-8400

"Very proffesional and knowledgeable. Very informative and friendly. After the inspection informed that my furnace was in very good condition. I have this same comment about all of Anton's service men that have come to my house."

Ralph T on January 2026


Avatar for Zoom Drain St. Louis

Zoom Drain St. Louis

4.78(
61
)
Approved Pro

Zoom Drain St. Louis

4.78(
61
)
Approved Pro
Super Service Award
Customers say: True professional
265 local quotes requested
3 years of experience

Zoom Drain is a full service provider of residential & commercial drain cleaning and inspection. We’re best known for fast response times and our ability to provide focused solutions to drain & sewer problems. From sinks, toilets, and tubs to main drains, roof drains, storm drains, and anything else that carries water, we’ve got you covered. We also offer grease trap cleaning services and planned preventative maintenance.

"Jordan did a great job, was informative and professional and the service was affordable."

Christine P on December 2025

Zoom Drain is a full service provider of residential & commercial drain cleaning and inspection. We’re best known for fast response times and our ability to provide focused solutions to drain & sewer problems. From sinks, toilets, and tubs to main drains, roof drains, storm drains, and anything else that carries water, we’ve got you covered. We also offer grease trap cleaning services and planned preventative maintenance.

"Jordan did a great job, was informative and professional and the service was affordable."

Christine P on December 2025


Avatar for Mr. Rooter Plumbing of St. Louis

Mr. Rooter Plumbing of St. Louis

4.48(
301
)
Approved Pro

Mr. Rooter Plumbing of St. Louis

4.48(
301
)
Approved Pro
Customers say: True professional
121 local quotes requested
9 years of experience

When you have a drain problem, you need it fixed fast. At Mr. Rooter Plumbing of St. Louis, we specialize in expert drain services that get your pipes flowing freely again. Our local, licensed plumbers are equipped with the latest tools to handle everything from stubborn clogs to full drain cleaning. We understand that a backed-up drain is an emergency. That's why our friendly dispatch team is ready to take your call anytime and send a professional, uniformed plumber to your door as soon as possible. For reliable, fast, and friendly drain cleaning and plumbing services, turn to Mr. Rooter Plumbing of St. Louis.

"They did the job as asked. "

Matt K on December 2025

When you have a drain problem, you need it fixed fast. At Mr. Rooter Plumbing of St. Louis, we specialize in expert drain services that get your pipes flowing freely again. Our local, licensed plumbers are equipped with the latest tools to handle everything from stubborn clogs to full drain cleaning. We understand that a backed-up drain is an emergency. That's why our friendly dispatch team is ready to take your call anytime and send a professional, uniformed plumber to your door as soon as possible. For reliable, fast, and friendly drain cleaning and plumbing services, turn to Mr. Rooter Plumbing of St. Louis.

"They did the job as asked. "

Matt K on December 2025


SET PLUMBING, LLC

5.00(
5
)
Approved Pro

SET PLUMBING, LLC

5.00(
5
)
Approved Pro
29 local quotes requested
1 years of experience

We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"I called SET PLUMBING around 2:30 in the afternoon after my sewer backed up into my basement. I called & left a message & Chris got back to me promptly. They were booked the rest of the day, but said they could comes first thing in the morning. Around 3:30 he called back & said they had a cancellation. They were there in an hour & took care of the tree root problem they discovered I had. Steve & Chris were friendly & professional, & made sure the problem was resolved before leaving. Reasonable pricing too. "

Connie S on January 2026

We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"I called SET PLUMBING around 2:30 in the afternoon after my sewer backed up into my basement. I called & left a message & Chris got back to me promptly. They were booked the rest of the day, but said they could comes first thing in the morning. Around 3:30 he called back & said they had a cancellation. They were there in an hour & took care of the tree root problem they discovered I had. Steve & Chris were friendly & professional, & made sure the problem was resolved before leaving. Reasonable pricing too. "

Connie S on January 2026


Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

4.06(
70
)
Approved Pro

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

4.06(
70
)
Approved Pro
Customers say: Quick response
288 local quotes requested
33 years of experience

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!

"Excellent job "

Sara T on January 2026

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!

"Excellent job "

Sara T on January 2026


Avatar for Mr. Rooter Plumbing of St. Charles

Mr. Rooter Plumbing of St. Charles

4.48(
295
)
Approved Pro

Mr. Rooter Plumbing of St. Charles

4.48(
295
)
Approved Pro
Customers say: Quick response
49 local quotes requested
9 years of experience

When you have a drain problem, you need it fixed fast. At Mr. Rooter Plumbing of St. Charles, we specialize in expert drain services that get your pipes flowing freely again. Our local, licensed plumbers are equipped with the latest tools to handle everything from stubborn clogs to full drain cleaning. We understand that a backed-up drain is an emergency. That's why our friendly dispatch team is ready to take your call anytime and send a professional, uniformed plumber to your door as soon as possible. For reliable, fast, and friendly drain cleaning and plumbing services, turn to Mr. Rooter Plumbing of St. Charles.

"Mr. Rooter provided great, and speedy, service!!"

Reginald J on October 2024

When you have a drain problem, you need it fixed fast. At Mr. Rooter Plumbing of St. Charles, we specialize in expert drain services that get your pipes flowing freely again. Our local, licensed plumbers are equipped with the latest tools to handle everything from stubborn clogs to full drain cleaning. We understand that a backed-up drain is an emergency. That's why our friendly dispatch team is ready to take your call anytime and send a professional, uniformed plumber to your door as soon as possible. For reliable, fast, and friendly drain cleaning and plumbing services, turn to Mr. Rooter Plumbing of St. Charles.

"Mr. Rooter provided great, and speedy, service!!"

Reginald J on October 2024


Avatar for Anton's Plumbing, Heating/Cooling Energy Experts

Anton's Plumbing, Heating/Cooling Energy Experts

4.88(
68
)
Approved Pro

Anton's Plumbing, Heating/Cooling Energy Experts

4.88(
68
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
26 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Both the estimator Kevin the two installers who visited my home were very professional and kind. They answered all my questions and provided a very reasonable price for the installation of the attic insulation. I feel I was very informed on the federal rebate that was available for this installation, as well as on the recommendations of quantity of insulation I needed per residential standards and codes. I would recommend Anton and will use them in the future for my HVAC needs!"

Haley D on November 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Both the estimator Kevin the two installers who visited my home were very professional and kind. They answered all my questions and provided a very reasonable price for the installation of the attic insulation. I feel I was very informed on the federal rebate that was available for this installation, as well as on the recommendations of quantity of insulation I needed per residential standards and codes. I would recommend Anton and will use them in the future for my HVAC needs!"

Haley D on November 2024

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FAQs for water main install, replace or repair projects in O Fallon, MO

If you notice puddles or standing water in your yard, a sudden drop in water pressure, cracks forming in your foundation, frequent clogs in your plumbing fixtures, or water that looks or smells unusual, you might have a leak in your main water line. These signs mean it's time to call a professional to evaluate the issue and prevent further damage.

A professional water main inspection is a comprehensive evaluation performed by a licensed plumber who checks every section of your plumbing system. The inspection costs $165 and uses advanced diagnostic techniques to identify hidden leaks or wear. This service clarifies the exact condition of your water main, enabling precise repairs that prevent future damage and ensure the overall health of your plumbing system.

Protect your water main by scheduling a cleaning and inspection every two to five years. The average cost of a sewer line cleaning is $400. It’s also important to never dig in your yard without first calling the dig line (811) to ensure you don't accidentally hit the water or sewer lines. Watch for soil erosion, low water pressure, or wet spots in your yard, and take immediate action if you suspect a leak. Remember, the longer you leave it, the worse the problem gets and the more costly it is to fix.

When properly maintained, your water main is engineered to remain functional for 50 years or longer. A durable water service in excellent condition should consistently perform without major issues for half a century. In contrast, metal pipes exposed to acidic soil corrode faster, whereas modern plastic pipes resist corrosion and function for decades beyond metal alternatives. Regular maintenance and inspections are essential for confirming your system’s longevity.

No, homeowners insurance does not cover the cost to repair a water main. Insurers fund only sudden, unforeseen events like a burst pipe and exclude gradual issues or normal wear and tear. Damage resulting from leaks, such as mold remediation or property claims, is not covered. It is essential to contact your insurance provider immediately to confirm your policy’s details and any potential adjustments needed.

The O Fallon, MO homeowners’ guide to water main install, replace or repairs

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