Baltimore: 410‑766‑8566 | Pasadena: 410‑636‑7944 Emergency Services Available | Financing Available

10% off any service call

maximum $250, cannot be combined with any other offer

$500 off any main exterior water or sewer replacement or repairs

Must be presented at time of service

Residential and Commercial Plumbing and Gas Services

For over 25 years, Maryland residents have called on Mahon Plumbing for the honest value and reliable service of a true “local plumber” with the full-scale capability to get any job done right. We’ve built a reputation with homeowners and businesses in Baltimore County, Anne Arundel County, Baltimore City, Howard County and the surrounding areas by offering top-quality services at an affordable price.

Our technicians are trained to handle a full range of plumbing services, and act with the utmost professionalism – responding to the job site in a company truck in uniform. Our staff is available 24 hours a day, 7 days a week to respond to your plumbing emergency.

Proud To Support

Read or Write
us a Review on

Google Reviews Logo

"Mahon came out to my home on a Sunday with extremely short notice to replace my water main shutoff valve. Chris was extremely professional and very knowledgeable. He respected our home and made sure there wasn't any mess left behind. I tried a few different plumbers that couldn't make it out to me on a Sunday before I found Mahon. I will be using these guys for all my future plumbing needs!"

~ Jonathan

"Everyone I dealt with was very professional and helpful. Chris walked us through everything and was sure to put on his shoe covers so to not bring any mess into my house. Main water line was replaced and all the yard was put back together."

~ Martha
  • Angie's List Logo
  • 2011 Angie's List Super Service Award Logo
  • 2012 Angie's List Super Service Award Logo
  • 2013 Angie's List Super Service Award Logo
  • 2014 Angie's List Super Service Award Logo
  • 2015 Angie's List Super Service Award Logo
  • 2016 Angie's List Super Service Award Logo

Sewer Replacement

Complete sewer replacement services for commercial and residential properties. From trenching and backhoe services to video line inspections.

Learn More

Utilities Contractor

As a licensed utilities contractor, we have the expertise and local knowledge to handle any job without the need to hire a subcontractor.

Learn More

Plumbing Repairs

From emergency repairs to leak detection, we provide fast response times, competitive pricing and the highest level of customer service.

Learn More

Latest News From Our Blog

What’s Causing Your Home’s Mystery Puddles?

Some leaks are easy to identify, but mystery puddles need to be investigated further to determine... Read More »

Plumbing Upgrades to Consider During a Kitchen Remodel

There are a few plumbing upgrades you can consider when you're ready to do a full... Read More »

Learn More

Need A Plumber?