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TRUSTED BY O FALLON, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon3.1k+
    Verified plumbing services reviews

Top-Rated Plumbers in O Fallon - Updated Nov 2026

Avatar for KIRKWOOD PLUMBING INC
KIRKWOOD PLUMBING INC
4.3(
98
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business

Serving O Fallon, MO and surrounding areas

Approved

In business since 1987

Emergency services offered

Warranties offered

"Called today for a non-emergency service (no water leaks at the moment).  I scheduled an appointment for the following week.  A couple hours later they called and said they could come today.  Jason arrived a few minutes later.  He was very friendly and professional.  He reviewed the damage from the leak (we had turned off the water).  He was able to quickly determine the likely cause.  After making the fix he double checked to ensure the problem was fixed.  I really appreciated his expertise and ability to ensure the fix worked.  I also appreciated his friendly demeanor.
I have used Kirkwood Plumbing before and they will be the first for me to call.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

2 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for Ducky Drains LLC
Ducky Drains LLC
5.0(
37
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearDrain Line Breakage - Camera Locate+2 more

Serving O Fallon, MO and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I cannot emphasize enough how Ducky Drains will be my choice anytime I have an issue with my plumbing. Mike was super knowledgable, quick and helpful! He’s growing his business the correct way, on his integrity. I’ve been raked over the coals by other plumbers. If you are in need of help with any plumbing problems, he’s your guy!"
Response time7 hrs
7 neighbors recently requested a quote
Avatar for Zoom Drain St. Louis
Zoom Drain St. Louis
4.7(
80
)
Drain Clog or Blockage - ClearSewer Main - ClearSewer Main - Install, Replace or Repair+7 more

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Emergency services offered

Warranties offered

"My Pro was absolutely fantastic. Not only did he take care of my clogged sink, his "sink side manner" displayed respect, knowledge, and professionalism. He also left me with information on how to clear my drain naturally. Zoom Drain is now my go to company for plumbing."
Zoom Drain Residential
Zoom Drain Jetting
Zoom Drain Video Camera Inspection
Zoom Drain PowerSnaking
Zoom Drain Shower PowerSnaking

+9

Response time11 hrs
Response rate92%
55 neighbors recently requested a quote
Avatar for MH Contracting, LLC
MH Contracting, LLC
4.8(
70
)
Plumbing for a Remodel or Addition - Install

Serving O Fallon, MO and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"MH Contracting is my number one choice for any type of plumbing work. First, their Veteran owned and that means a lot! Equally important is that they perform the highest quality work. They're, organized, responsive, respectful, professional, courteous, get the work completed the first time and they clean up after themselves. They truly take care of the customer. I first met them through a general contractor who signed on to do a large remodel project for me that included the complete rearranging of all second floor plumbing. They were impressive during the remodel and because of that, I've used them for all my plumbing work ever since! They're fantastic and won't disappoint!"
siding job
siding job
siding job
Siding job
Bathroom remodel

+196

Response time1 day
4 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Jacuzzi Bath Remodel of St. Louis
Jacuzzi Bath Remodel of St. Louis
4.8(
79
)
Shower Install or ReplaceBathtub Install or Replace

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Credit card accepted

"The people on the phone and the workers that worked at my house were fantastic. Damien and Ernest were the installer's top rate people. Jack, their license plumber was polite and funny. The only person we didn't care for was Keith He only stopped by to look at what was going on. He was a little rude to my wife and Made her feel Like she was second class in her own home. We Were very shocked by that. We would definitely recommend Jacuzzi to our friends."
Matte Black
Brushed Nickel
Brushed Nickel
Chrome Rainhead
Chrome Grab Shelf

+15

88 neighbors recently requested a quote
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Plumbing FAQs, answered by experts

Always verify that your contractor holds a valid state license and carries adequate insurance to protect your property during MO storms. Hire professionals familiar with local codes rather than general metro standards. Your contractor must pull necessary permits for major plumbing projects, like water heater replacements. Choose experts experienced with older local infrastructure, such as cast iron drain lines and clay sewer laterals.

Helpful?

In O'Fallon, plumbing projects often interact with electrical, HVAC, and structural systems. For example, installing a new water heater or sump pump may require electrical updates, while pipe leaks can impact HVAC performance and air quality. Sewer line repairs might involve foundation work, and bathroom renovations could affect walls or flooring. Always coordinate with utility providers before starting major plumbing changes.

Helpful?

Routine plumbing maintenance in MO involves flushing your water heater twice a year to combat hard water sediment. You must winterize your system before November by disconnecting outdoor hoses and insulating exposed pipes in garages or crawl spaces. Test your sump pump annually before the spring storm season. Schedule a camera inspection of your sewer lateral to catch root intrusion early in clay soils.

Helpful?

Leaving garden hoses connected during freezing O'Fallon winters causes severe pipe stress and joint failure. Flushing grease or wipes overloads the local sewer system and damages interior drain lines. Planting large shrubs near sewer laterals allows roots to invade underground plumbing in clay-heavy soils. Since the local water is hard, allowing standing water in pipes accelerates scale buildup, which ruins fixtures and water heaters.

Helpful?

In O'Fallon, urgent plumbing issues like burst pipes, sewer backups, or water heater failures require immediate attention, especially during cold snaps or heavy rainfall. Projects such as fixture upgrades or bathroom remodels can typically be planned for milder seasons like spring or fall. Always consider local weather, the risk of water damage, and contractor availability when prioritizing repairs or improvements.

Helpful?

The O Fallon, MO homeowners’ guide to plumbing services

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