The commercial plumbing industry comprises businesses that specialize in the installation, maintenance, and repair of plumbing systems in commercial facilities, including hotels, restaurants, schools, hospitals, and more. Services include but are not limited to drain cleaning, line excavation, toilet and faucet repair, and water damage restoration. Some companies are expanding their scope to provide holistic solutions such as HVAC, sheet metal fabrication, and maintenance services. As the global awareness towards sustainable practices grows, these companies are looking to incorporate innovative technologies to minimize water wastage, showing the prospective advancements in the industry.


Top 24 Commercial Plumbing Companies

1. Roto-Rooter Plumbing and Drain Service

  • Website: rotorooter.com
  • Headquarters: Cincinnati, Ohio, United States
  • Founded: 1935
  • Headcount: 1001-5000
  • Latest funding type: Debt Financing
  • LinkedIn

Roto-Rooter is a full-service plumbing company that offers a wide range of plumbing services including drain cleaning, toilet repair, sewer line excavation, faucet repair, and water damage restoration.


2. Metropolitan Mechanical Contractors

  • Website: metromech.com
  • Headquarters: Eden Prairie, Minnesota, United States
  • Founded: 1963
  • Headcount: 501-1000
  • LinkedIn

Metropolitan Mechanical Contractors, Inc. is a commercial mechanical services contractor that designs, builds, and installs mechanical solutions for facilities. They provide complete mechanical systems including HVAC, chiller and boiler systems, plumbing, sheet metal fabrication, and ongoing service and maintenance. With a portfolio of completed projects, MMC has the expertise to design complex mechanical systems for commercial facilities across the Midwest.


3. SupplyHouse.com

SupplyHouse.com is an online retailer that specializes in selling plumbing, heating, and HVAC supplies. With a wide range of products, including fittings, valves, thermostats, and electrical components, customers can find everything they need to complete their plumbing and HVAC projects. The company offers free shipping on orders over $99 and provides excellent customer support.


4. Dpw Inc

  • Website: dpwinc.com
  • Headquarters: Hammond, Indiana, United States
  • Founded: 1994
  • Headcount: 11-50
  • LinkedIn

DPW, Inc. is a commercial plumbing and piping company based in the San Francisco Bay Area. With a commitment to delivering a superior final product, they use state-of-the-art 3D technology to ensure accuracy and save time and money. Their experienced management team and membership in various unions reflect their proactive and dedicated approach. Contact them for reliable service and a smooth project experience.


5. RM Services LLC

RM Services (R.M.S.) is a leading Mechanical Services Contractor in Rhode Island, specializing in installing medium to large-scale mechanical systems. With over 34 years of experience, Joseph Ruggieri and his three sons ensure attention to detail, pride, and respect in their family business. They offer uninterrupted piping solutions and are known for their industrial plumbing and welding services for both residential and commercial customers.


6. EM Duggan

  • Website: emduggan.com
  • Headquarters: Canton, Massachusetts, United States
  • Founded: 1891
  • Headcount: 201-500
  • LinkedIn

EM Duggan is a mechanical and plumbing services company that offers a wide range of solutions for residential and commercial buildings. With over 130 years of experience, they provide 24/7 service and work closely with clients, subcontractors, and vendors.


7. SPS Companies, Inc

SPS Companies is a wholesale distributor of products and services for residential and commercial plumbing, mechanical and industrial piping, heating, ventilation, air conditioning, refrigeration, and fire protection.


8. Cal-steam

  • Website: cal-steam.com
  • Headquarters: Hayward, California, United States
  • Founded: 1935
  • Headcount: 201-500
  • LinkedIn

CAL-STEAM is a reliable plumbing supply house and mechanical distributor that has been serving trade professionals in Northern California for over 80 years. With a comprehensive inventory of plumbing products and mechanical supplies, they offer fast and convenient access to high-quality products for commercial and residential plumbers and mechanical contractors. They provide expert support through tailored services, including custom quotations, commercial water heater delivery, and Pro Pick-up. CAL-STEAM is committed to delivering the right products on time, every time, and is your trusted partner in the plumbing and mechanical supply industry.


9. Harvey W. Hottel, Inc.

  • Website: harveyhottel.com
  • Headquarters: Woodfield Road, Gaithersburg, United States
  • Founded: 1945
  • Headcount: 51-200
  • LinkedIn

Harvey W. Hottel, Inc. is a trusted commercial HVAC and plumbing contractor in the Washington DC Metropolitan area. They provide honest and reliable services to their customers, offering commercial HVAC system installation, maintenance, repair, and replacements, as well as commercial plumbing services. They also specialize in mechanical design build projects, custom homes, and geothermal solutions. With over 70 years of experience, they have built excellent relationships with local contractors and building owners to deliver high-quality and efficient services.


10. Another Plumbing Company LLC

Another Plumbing Company LLC is a licensed, bonded and insured union plumbing contractor based in Chicago. With over 10+ years of experience, they specialize in commercial, residential, roof systems, and service. Known for their hard work, execution, and high-level quality, they ensure projects are completed in a professional, safe, and timely manner. Their mission is to 'fit' all of their customer's plumbing needs.


11. Douglas Orr Plumbing, Inc.

Douglas Orr Plumbing, Inc. is a comprehensive plumbing service provider serving the Miami-Dade, Broward, and Palm Beach County communities for over 40 years. They offer a range of residential and commercial plumbing services including water heater installations, pipe repairs, bathroom and kitchen remodeling, sewer camera inspections, and more. Their trained technicians are prompt, efficient, and provide superior service. They are licensed, bonded, and insured, and have won the Angie's List Super Service Award every year since 2007.


12. Psi Plumbing, INC.

PSI Plumbing, Inc. is a commercial plumbing company operating in the five boroughs of New York and New Jersey. They specialize in serving the hospitality industry, with many hotels and hospitals in Manhattan as their valued customers.


13. Cardoza Plumbing CORP

Cardoza Plumbing Corp is a leading specialist in commercial, hospital, and institutional plumbing.


14. Ackerman Plumbing, Inc

Ackerman Plumbing Inc. is a professional plumbing company providing high-quality plumbing services. With a team of knowledgeable and skilled technicians, they offer a range of plumbing solutions for residential and commercial properties. They specialize in efficient and reliable plumbing installations, repairs, and maintenance. Ackerman Plumbing Inc. is known for their exceptional customer service and commitment to customer satisfaction.


15. Chris' Plumbing, Inc.

Chris' Plumbing Inc. is a construction plumbing contractor based in Hayward, CA. They provide a wide range of plumbing services for residential and commercial projects, including plan & spec, system design, and installation. With a focus on quality and attention to detail, they work closely with clients and industry professionals to deliver tailored solutions. Their expertise also extends to fire sprinkler systems and heating solutions. With unparalleled customer service and a diverse plumbing experience, Chris' Plumbing has built a reputation for excellence.


16. Certified Mechanical Inc

  • Website: cminconline.com
  • Headquarters: Cleveland, North Carolina, United States
  • Founded: 1992
  • Headcount: 11-50
  • LinkedIn

CMI is a full-service Certified Mechanical, Plumbing, Automation and Controls Contractor with over 30 years of experience in Industrial, Commercial, and Critical Facility environments. They offer quality solutions and products in HVAC, heating, ventilation, air-conditioning, plumbing, piping, welding, repairs, renovations, new installations, emergency power plants, fuel piping, exhaust stacks, fuel pumps, and more.


17. Brinkman Plumbing Cont INC

Brinkman Plumbing Contractors, Inc. provides plumbing services for industrial, residential, and commercial properties, as well as septic systems. They are a family-owned and operated business established in 1991.


18. Effective Plumbing CORP.

Effective Plumbing & Heating is a licensed full-service plumbing and heating contractor serving customers in New York City for over 50 years. With experienced plumbing mechanics, they specialize in boiler installations, service, and maintenance contracts, as well as backflow prevention.


19. Hajoca Corporation

  • Website: hajoca.com
  • Headquarters: Redding, California, United States
  • Founded: 1858
  • Headcount: 1001-5000
  • LinkedIn

Hajoca is a plumbing and industrial supply company that has been in operation since 1858. They specialize in procuring, warehousing, and delivering pipe, valves, and fittings (PVF) for construction and repair. They serve a wide range of industrial companies, including Boeing, GM, DuPont, Duke Energy, 3M, International Paper, and Goodyear.


20. RectorSeal

RectorSeal is a company that offers a wide range of HVAC and plumbing products. They specialize in air distribution, condensate management, firestop products, and more. With a focus on innovation and quality, RectorSeal provides solutions for both commercial and residential applications.


21. Diamond Plumbing

Diamond Plumbing, LLC is a plumbing services company based in Bowie, MD. They offer services such as drain installation, leak detection and repair, water heater installation, and more. They guarantee fast, reliable, and affordable plumbing services and treat each customer's home with care and professionalism.


22. Bears Plumbing

Bear's Plumbing is a plumbing service provider located in Naples, FL. They offer a range of plumbing services to both commercial and residential customers. With a dedicated team and a mission to provide innovative and dependable services, they strive to exceed customer expectations.


23. Gateway Contracting

Gateway Contracting, Inc. is a licensed and certified general contracting company based in Jacksonville, FL. They offer a wide range of commercial and industrial construction services, specializing in plumbing, construction, and HVAC. With expertise in new installations, remodeling, and repairs, they provide quality solutions for chemical and process piping, storm drains, hot water heaters, and more.


24. Quality Plumbing, Inc.

Quality Plumbing, INC. is a plumbing company based in Kansas City. We offer a wide range of plumbing services for residential and commercial clients. Our team of experienced plumbers provides reliable and efficient solutions for plumbing repairs, installations, and maintenance. We prioritize quality workmanship, excellent customer service, and affordable pricing.


Want to find more commercial plumbing companies?


If you want to find more companies that cater to a spectrum of plumbing-related needs you can do so with Inven. This list was built with Inven and there are hundreds of companies like these globally.


With Inven you'll also get to know the company's:


  • Ownership: Which of these are private equity backed? Which are family-owned?
  • Contact data: Who are the owners and CEO's? What are their emails and phone numbers?
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...and a lot more!