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About Us

Founded in 1994 by Craig DeGarmo, DeGarmo Plumbing & Piping Inc. is a full-service plumbing and piping contractor specializing in commercial, residential and health care facilities. Headquartered in Janesville, Wisconsin, DPPI operates out of an 8,000 square-foot fabrication shop/warehouse and employs up to 20 plumbing and piping professionals.

DPPI is certified by ISNetworld® as a safe, qualified contractor, ensuring verified safety standards and performance. All DPPI employees receive ongoing HAZMAT and safety training to meet OSHA standards.

DPPI Corporate Piping Brochure(PDF Download)

DPPI Plumbing Brochure (PDF Download)

Residential Plumbing and Service

In addition to our commercial plumbing and piping division, DPPI has dedicated, licensed, full-time service professionals with fully stocked maintenance vehicles. From clogs and leaks to water heater and fixture installations, we repair or replace the plumbing in your home or business with prompt, efficient and courteous service. Our maintenance vehicles are stocked with disposals, toilets, faucets and a variety of parts to serve everyday and emergency plumbing repairs

Commerical Plumbing and Service

DeGarmo Plumbing & Piping, Inc. designs, builds, installs, inspects, modifies, and repairs plumbing and piping systems, and sanitary waste, vent, storm and water distribution systems, to serve healthcare, education, municipal, commercial, food/beverage, and entertainment industries. We offer system installation, layout, budget planning and takeoff preparations for piping systems serving the needs of manufacturing processes in food and beverage, industrial and chemical manufacturing facilities. DPPI also installs commercial boiler and steam systems for manufacturing processes in industrial, food and beverage, and chemical manufacturing facilities. We are certified in ASME pressure vessel welding.

DPPI also offers the following services:

  • Design/Build
  • Medical Gas Installation
  • Water and Waste Systems
  • Gas and Air Piping
  • Utilities
  • Back Flow Testing
  • ASME Pressure Vessel Welding


  • Master Plumber #233068
  • Medical Gas Certification
  • ASME Pressure Welding
  • PHCC Project Management Training
  • UA93 Food Grade Stainless
  • Aquatherm Piping Systems
  • Ongoing HAZMAT and OSHA Safety Training

Employees who participate in advanced training and continuing education every year


Plumbers who are certified in medical gas installation


Employees who receive quarterly safety testing to comply with OSHA standards

DDPI Footer

DPPI had its first service call in January 1994 and has gone on to service nearly 1,000 customers in southern Wisconsin and northern Illinois.

300 S. Washington Street
Janesville, WI 53548
Phone: 608.752.1391

Copyright © DeGarmo Plumbing & Piping Incorporated