The Plumbers You Can Call When Needed the Most

Providing Top-Tier Plumbing Services for Homes and Businesses With Unmatched Expertise

Get Started

Trusted Plumbing Experts Since 1983

Serving since 1983, Merlo Plumbing Co., Inc. has been the trusted name for 24/7 plumbing in St. Louis. We offer quality, customer-focused plumbing solutions for residential, commercial, and new construction projects, always with a commitment to being on call when you need us most.

Learn More About Us
Person with three stars on orange background.

Experience You Can Trust

We've completed over 82,000 projects.

Hands holding checkmark symbol on orange background.

Built on Core Values

Our work is defined by integrity and dedication.

Worker icon with wrench on orange background.

No Job Too Big or Small

We handle every project with the same dedication.

Solving Your Water Worries

  • 24/7 Emergency Plumbing

  • Residential & Commercial Plumbing

  • Sewer & Drain Services

  • Lawn Irrigation & Fountains

  • New Construction & Contract Plumbing

  • Remodels, Repairs & Maintenance

View All Services

Our Winning Edge

  • Family-Owned & Customer-Focused

  • Fully Licensed, Bonded & Insured

  • Union Plumbers – Local #562

  • 24/7 On-Call Availability

  • Proven Track Record of 1,300+ Major Projects

A Wide Service Area

Contact Us for Service in Your Area

  • St. Louis City & County

  • Jefferson County

  • Franklin County

  • St. Charles City & County

What Our Customers Are Saying

Maureen Wirth

"Excellent service! Thought I needed a water heater but my Merlo serviceman, Tyler, said I didn’t. They didn’t sell me something I didn’t need! He even did extra plumbing work that wasn’t scheduled. Top-notch company!"

Caroline Bailey

"Doug did a fantastic job replacing my water heater. High-quality work at a fair price. I highly recommend Merlo!"

Dustin Price

"Installed a water heater and replaced old galvanized steel piping. Matt and Doug were honest, communicative, and didn’t oversell. Reasonable pricing and great work!"

Joann Bates

"Merlo Plumbing found and fixed a problem in my old home. The technician was knowledgeable, respectful, and cleaned up after himself. Highly recommend!"

Nathan Attaway

"Always professional, always on time. Merlo’s plumbers answer questions and go above and beyond. They truly care about getting it done right."

Mark Jones

"We've used Merlo at Patterson Place Apartments several times. They’re fast, reliable, and do clean, efficient work. These are the guys to call!"

Erin Gatton

"Merlo Plumbing has helped me twice in the past month. Charles was incredible — fast, efficient, and even helped me over the phone. Merlo is my go-to!"

Join thousands of happy customers across St. Louis and surrounding counties