Bob Mahoney Plumbing and Excavating Arnold MO

Business Overview

Bob Mahoney Plumbing and Excavating Arnold MO provides plumbing, septic, drain, and sewer services to homes and businesses across the St. Louis metro and Jefferson County. The company offers 24-hour emergency response every day of the week. Technicians handle both residential and commercial jobs, from routine inspections to major excavations. Crews are small, experienced, and work from company trucks and a dump truck/backhoe when the job requires digging.

Key Services

Work is organized around clear service areas so customers know what to expect:

• Drains & Sewers: Drain installation, drain repair, sewer installation, sewer repair, and commercial/residential cleaning.
• Plumbing Repair & Installation: Plumbing inspection, plumbing installation or replacement, plumbing repair, sink repair, toilet installation and repair.
• Water Pipes: Water pipe installation and water pipe repair for older homes and new construction.
• Excavating Support: Backhoe and dump truck work for sewer lines, septic connections, and site prep.

Areas Served

Service reaches many communities in and around Arnold. Primary coverage includes Oakville, Ballwin, Mehlville, Kirkwood, Affton, Arnold, Manchester, Concord, Lemay, Clayton, Overland, Saint Ann, Festus, Crestwood, Town and Country, Eureka, Ellisville, Murphy, Des Peres, Sunset Hills, Brentwood, Maplewood, Olivette, Sappington, Valley Park, Saint John, Shrewsbury, Barnhart, Glendale, Pevely, Weldon Spring, Dellwood, Mount Pleasant, Crystal City, Breckenridge Hills, Imperial, Rock Hill, High Ridge, Northwoods, Woodson Terrace, Fenton, Herculaneum, Castle Point, Pagedale, Riverview, Byrnes Mill, Bel Ridge, Clarkson Valley, Green Park, Moline Acres, Wellston, Marlborough, Hanley Hills, Warson Woods, LaBarque Creek, Vinita Park, Hillsdale, Lakeshire, Oakland, Bel Nor, Charlack, Calverton Park, and nearby Illinois towns including Waterloo, Columbia, Centreville, Dupo, Smithton, Alorton, Venice, and Valmeyer.

Company History

The business opened on Jan. 27, 1997. The owner has worked in drain and sewer cleaning in the metro St. Louis area and Jefferson County for more than 35 years and has run the company for the last 20 years. Starting with one truck and basic tools, the company added excavation equipment and a small crew over time to handle larger sewer replacements and septic work.

Leadership

The owner founded the company after decades of hands-on field work. He is active in local trade circles and keeps close ties to Jefferson County contractors. That local presence helps with quick permits, neighborhood knowledge, and practical solutions built for area soils and older pipe materials.

Specialties & Highlights

• Commercial and residential drain and sewer cleaning with on-site inspections.
• Sewer repair and installation backed by excavation capability (backhoe and dump truck).
• Experienced troubleshooting for older St. Louis-area homes and their pipe systems.
• 24/7 emergency service and same-day responses when possible.

Why Locals Choose Bob Mahoney Plumbing and Excavating

Local customers pick Bob Mahoney Plumbing and Excavating Arnold MO for steady, hands-on experience and reliable response. The company focuses on practical repairs, clear estimates, and work that fits older suburban homes and newer developments alike. With long roots in Arnold and Jefferson County, the business keeps service local and straightforward.

For routine maintenance, emergency repairs, or sewer replacement projects, residents and businesses can call a team used to the clay soils, basements, and seasonal weather patterns of the St. Louis region.