Should plumbers be certified or licensed?

<div>Yes, most states require plumbers to be licensed, and for good reason. Hiring an unlicensed plumber could lead to poor quality work, costly future expenses, and potential code violations. As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include: <ul><li>The owner, principal, or relevant manager passed a criminal background check</li><li>Required to have applicable state and local licenses</li><li>Maintain an average star rating of 3.0 or better on our network, if they have at least one review</li><li>Paying to advertise their services</li><li>Meeting any other eligibility criteria required by Angi</li></ul> Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.</div>

What questions should I ask a plumbing contractor?

<div>Before <a href="https://www.angi.com/articles/7-questions-ask-hiring-plumber.htm">finding the right plumber for your job</a>, there are a few questions that you should ask, including: <ul><li>Are you licensed and insured?</li><li>Do you charge for estimates? </li><li>Is your fee a flat rate, or is it hourly?</li><li>Who will do the work? Are they all licensed and qualified plumbers?</li><li>What happens if any breaks or damages occur?</li><li>What is your response time in an emergency? </li><li>Is cleanup included in the quote?</li><li>Do your services come with a guarantee?</li></ul>Discussing these questions with your plumbing contractor will help eliminate future issues and clarify expectations. </div>

Should I clean before the plumber comes?

<div>Before your plumber pays you a visit, it’s a good idea to clean up any boxes, garbage, or other obstacles that could be in their way. In addition, it’s best practice to clean the area that needs to be inspected or worked on, like a toilet, for example. Make sure to keep kids and pets out of the way once the plumber arrives.</div>

How much are typical plumbing repair costs?

<div>Typically, <a href="https://www.angi.com/articles/how-much-will-plumbing-repair-cost.htm">plumbing repairs cost</a> about $325 per job but can range from $175 to $4,000 or more. Simple fixes, such as a toilet repair, will be less expensive at around $150 to $400. However, if you have a pipe that has burst, you can expect to pay between $1,000 and $4,000 or more. The project that needs to be completed, the size of your home, and the type of plumbing pipes you have can all impact the final cost. External factors such as supply chain issues and shortage of materials all play a part in how much this repair might be.</div>

How much do plumbers typically charge?

<div><a href="https://www.angi.com/articles/plumber-cost.htm">The average cost to hire a plumber</a> is around $100 an hour but can vary between $45 and $200 an hour depending on the plumber’s experience and the repair that you need. It’s also important to note that these prices can go up on holidays, and emergency plumber rates average $150 per hour, in addition to a flat-rate trip fee of $100 to $350. </div>

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Verified Reviews for Plumbing pros in O Fallon, MO

*The Angi rating for Plumbing 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 Plumbing needs.

*The HomeAdvisor rating for Plumbing 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 Plumbing needs.

Last update on October 06, 2025

Reviewed in September 2016
Due to lack of availability (was busy with other jobs, and unavailable for approx. 1 1/2 weeks), I hired a different local plumber. He was able to recommend someone else (the plumber I hired)who was available sooner. I appreciated his assistance with finding an available plumber.
Govro Plumbing
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Reviewed in September 2015
Plumber phoned prior to arriving to let us know he was on his way. Was prompt, professional and efficient. We're very satisfied and will use LaMartina Plumbing for our plumbing needs in the future.
Tony LaMartina Plumbing Company Inc
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Reviewed in July 2014
So, long story short, the Roto-Rooter technician Ariel came to our house after a previous plumbing company and quot;attemptedand quot; to clear our mainline stoppage. I was worried I was looking at costly repairs and further non-use of my plumbing. Ariel came in and unclogged our drain no...
Roto-Rooter Plumbing & Water Cleanup
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Reviewed in June 2016
Very, very pleased with service. Fixed the problem. Glen was the plumber and was very professional, informative, and helpful with information about our plumbing. Will definitely call again if we need plumbing service.
Hosack Plumbing Heating & Cooling
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Reviewed in August 2010
before meeting corey with CJ PLUMBING I went through approx 7 plumbers. By far CJ is the most efficient,fair priced reliable plumber I have come across. Their quality of work and professionalism are second to none. CJ Plumbing is now the only plumber I use or refer. ...
CJ Plumbing & Contracting LLC
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Reviewed in July 2016
When things get all backed up from roots in my pipes, I call them right away. They then send out a plumber who grinds the roots out of the pipes and it works fine for a year or two. They have been very good and I will continue to use them.
American Water Resources Inc
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Reviewed in July 2016
Hey i tried calling back but no answer. i wanted to give the plumber helper a tip because he did a great job cleaning up my house ! Thank you USA Plumbing Plus
Usa Plumbing Plus
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Get matched with top plumbers in O Fallon, MO

There are 24 highly-rated local plumbers.

Need a pro for your plumbing project in O Fallon, MO?

Faucets, Fixtures and Pipes Repair or Replace

Handyman for Multiple Small Project Service

Electrical Switches, Outlets & Fixtures Install or Repair

TRUSTED BY O FALLON, MO HOMEOWNERS

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Sample The Best Construction

Sample The Best Construction

Biere Tile and Construction

Biere Tile and Construction

I Gotta Guy Home Services & Contracting

I Gotta Guy Home Services & Contracting

STL Plumbing Co.

STL Plumbing Co.

Wunder Home Services

Wunder Home Services

Pruitt's Contracting Services LLC

Pruitt's Contracting Services LLC

HF Plumbing

HF Plumbing

Pipe It Down Plumbing

Pipe It Down Plumbing

911 Restoration of Jefferson City

911 Restoration of Jefferson City

Crescent Parts & Equipment Company

Crescent Parts & Equipment Company

FAQs for plumbing projects in O Fallon, MO

Should plumbers be certified or licensed?

What questions should I ask a plumbing contractor?

Should I clean before the plumber comes?

How much are typical plumbing repair costs?

How much do plumbers typically charge?

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