Duff offers the widest selection of products in our industry. From plumbing, heating and industrial supplies, to pumps, steam specialties and water treatment equipment, no one in the Philadelphia area equals our vast product line.

Duff provides unsurpassed technical ability, with full time experts devoted to their specific fields.

Emergency service is available 24 hours a day, 365 days a year.

Duff is family owned and managed, an owner is always available to meet or talk with you, and all of this is brought to you at competitive prices.

Located in Norristown, PA, Duff Company was founded in 1947 by Richard “Dick” Duffine and has become a leading provider of plumbing and heating supplies, pumps, water treatment equipment and much, much more.

Today, Geoffrey Duffine is at the helm, along with his son, Alex, and son-in-law, Michael Genkin. The Duff family is dedicated to growing Duff Company’s services while maintaining the superior level of quality that has become its hallmark.

5 WAYS DUFF SEPARATES ITSELF FROM THE COMPETITION:

• Duff has a 50-person staff, with an average tenure of more than 20 years, and Duff employees have unparalleled training and experience in their specialties.

• Duff has the widest inventory in the business, including specialties and hard-to-find items, allowing for “one stop” shopping.

• Duff has a electronically-dispatched and -monitored fleet of delivery trucks that can make rapid deliveries not only to business locations, but also to job sites.

• Duff Company manufactures its own water treatment equipment,  can custom builds systems to meet the needs of its customers.

• Duff has in-house UPS and FedEx shipping, to extend its delivery reach around the globe.