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201 E. Lafayette Street Norristown, PA 19401

Philadelphia Plumbing & Heating Supply | Pumps | Water Treatment
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Register Early for the 2023 Pump and Water Treatment Seminar and Save!

  • Register Early for the 2023 Pump and Water Treatment Seminar and Save!

    March 2, 2023

    The 2023 Pump & Water Treatment Seminar will be held on May 24, 2023 at the Holiday Inn in East Windsor, NJ. Registration includes breakfast,…

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  • Pump & Water Treatment Seminar: Success!

    November 7, 2019

    November 7, 2019 On Wednesday, October 23, 2018 Duff Company hosted a Pump & Water Treatment Seminar at the Holiday Inn in Hightstown, NJ. The…

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  • DUFF PUMP & WATER TREATMENT SEMINAR

    October 21, 2019

    October 21, 2019 As a reminder, THIS WEDNESDAY (Oct. 23), Duff is hosting its Pump & Water Treatment Seminar at the Windsor Ballroom @ Holiday…

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  • WQA Seat Time @ Duff Pump & Water Treatment Seminar!

    July 21, 2019

    July 21, 2019 If you need WQA credits, you’re not going to want to miss it on October 23, 2019: Duff Pump & Water Treatment…

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  • NJ CEP Points Available! Duff Pump & Water Treatment Seminar

    June 17, 2019

    June 17, 2019 The New Jersey Dep’t of Environmental Protection has new rules for well drillers and pump installers: Now licensees must obtain continuing education…

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  • It’s Coming . . . .

    May 24, 2018

    May 24, 2018 What began as a brief cleanup of our 746-page compendium, most recently published circa 1991, became a full-blown rewrite of the Duff…

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  • Summer is here – Counter Days Begin

    May 5, 2018

    May 5, 2018 Spring has sprung, which can mean one and only thing: Duff Counter Days are here! We kicked off the season with a…

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  • Merry Plumbing Christmas!

    December 14, 2017

    December 21, 2017 From all of us at Duff, we wish you a Merry Christmas and a Happy New Year! As always at this time…

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  • This is an Organization to Watch

    October 4, 2017

    October 1, 2017 Duff Co. was proud to exhibit and actively participate in the annual Eastern Water Quality Association’s convention this year, held at Bear…

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  • Facilities Fourth of July

    June 30, 2017

    As we approach the holiday weekend and the Fourth of July–a time when many commercial businesses close–I think it worth recognizing the people that take…

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Philadelphia Plumbing & Heating, Pumps, and Water Treatment

201 E. Lafayette Avenue, Norristown PA 19401

Phone: 610-275-4453
Fax: 610-279-6299

Hours:
Monday – Friday – 7:30 am to 4:30 pm
Saturday – closed
Sunday – closed
(We are still open for emergency service during other times.)

© 2026. Duff Company.