COVID-19 Response Major Plumbing Co. Inc. is committed to the health and safety of our employees and customers. We remain open to provide our essential services when our customers need us most. COVID-19 Resources
Commercial Construction

What We Do

Providing all stages of commercial plumbing construction

Our goal at Major Plumbing Co. Inc. is to continue to be known as a plumbing industry leader and to be recognized for our commitment to professionalism and service throughout the construction industry.


Commercial Construction Services

  • Ground-up Plumbing Construction

  • Remodel Plumbing Construction

  • Tenant Improvement, Retrofits and Remodel Plumbing Construction

  • Design-Build/ Design-Assist Plumbing Systems

Commercial Construction Stages

  • Pre-Construction Services:

  • Collaborate with contractors, architects and clients to design suitable cost-effective structures

  • Design Build / Design Assist:

  • Partner with engineers, CAD designers, and LEED professionals to design plumbing systems

  • Construction:

  • Professionally install plumbing systems and fixtures in commercial structures 

  • Post-Construction:

  • Maintain, repair and service facilities with our in-house service and maintenance team


Commercial Scope of Work

  • Pre Construction

  • Review building codes and blueprints to ensure plumbing industry standards and regulations

  • Recommend changes to current plumbing structure in buildings to overcome issues

  • Underground, Top Out/Rough, Finish Plumbing

  • Locate, mark and document positions of pipe installations and connections

  • Locate and inspect sewer system with video equipment

  • Excavate trenches, lay pipelines, link piping system to the local water main and sewage system

  • Fabricate, assemble and Install plumbing systems and subsystems

  • Install gas supply, water supply/drainage, waste/sewage drainage and venting systems

  • Install piping sections, tubing, valves, pumps, and guages

  • Install heat exchangers, control systems, backflow preventers and expansion tanks

  • Install water heaters, water meters, water softeners, and water purification & filtration systems

  • Install plumbing fixtures for restrooms, supply closets, kitchen facilities and common areas

  • Post Construction Plumbing Inspection

  • Hydro jet pipes, test/certify backflow systems and inspect sewer system with video equipment

  • Complete final quality control inspection of facilities prior to building opening


Commercial Structure Experience

  • Big Box Retailers

  • Non-Profits/Churches

  • Educational Facilities/Schools

  • Government Buildings

  • Grocery Stores/Markets

  • Healthcare/Medical Facilities

  • Hospitality

  • Restaurants/Food Services

  • Retail Centers

  • Retail Establishments

  • Storage Facilities

  • Vehicle Services