About us
Becoming The Best In Our Industry
DPI’s success stems from our unwavering commitment to quality and customer satisfaction, alongside our skilled team’s adaptability to industry advancements. Our excellence sets us apart in the competitive world of commercial plumbing.
“Strive for an excellent finished product, every time.”
Don Holtz Sr. President
- We specialize in both new plumbing system installations and upgrading existing infrastructure
- We pride ourselves on having the right people for the job, with a team of master plumbers whose expertise ensures quality workmanship every time
- Committed to quality, excellence, and customer satisfaction
Our value
Integrity, professionalism, and collaboration in delivering top-tier commercial plumbing services
Our vision
We are elevating commercial plumbing through inventive solutions and an unwavering focus on client satisfaction
Our Mission
To work closely in design and application with both contractors and business owners to incorporate updated plumbing innovations for new buildings and renovation projects alike
Our History
70+ years ago, DPI started as a plumbing service company under Frank Depasquali. Over the last 40 years, Don Holtz Sr. introduced the company to commercial plumbing, and there has been a solid commitment to it ever since. Today (DPI) operates under Don Sr. & Don Holtz Jr. to blend larger commercial new builds with commercial plumbing upgrades and plumbing construction renovations. DPI prides itself on its design-build approach and incredibly neat finished products.
Notable Projects over the years
- Washington Wild Things Ball Park
- Cool Springs / AHN Sports Facility
- Mon Valley Care Center
- Spartan Surgery Center
- Century Building - Downtown Pittsburgh
- Southside High Apartments
- 1717 Fifth Avenue Apartments
- Jefferson Hospital Ambulatory Surgical Building
- Primrose School - Wexford
- Goddard School - Hampton
- Dura Metal Products - Erwin
- General Carbide - Greensburg
- Innovative Carbide
- Wright Chevrolet - Baden
- Wright Nissan - Wexford
- Rohrich Bentley Massarati - Wexford
- Bowser Chevy - Beaver
- Ron Lewis - Cranberry
- Riverside Ford - Markleysburg
- A&L Automotive / BMW - Monroeville
- Elizabeth Carbide
- St. Thomas A' Becket Church - Jefferson Hills
- Donegal Construction Headquarters - New Stanton
- Fossil Industries - New Stanton
- Zilka Flower - New Stanton
- Bakery Barn - Alta Vista Business Park
- Kreps Printing - Indiana, PA
- Scientific Drilling - Alta Vista Business Park
- Nine Energy - Alta Vista Business Park
- Gardner Denver Nash - Alta Vista Business Park
Our testimonials
Join Our Team & Build Your Career in Plumbing with DPI
DPI is committed to investing in our employees and fostering a positive, supportive work environment. Through our apprenticeship program, we offer aspiring plumbing professionals the opportunity to receive hands-on training from skilled mentors and acquire the knowledge and expertise needed to excel in this dynamic industry. If you’re looking for a challenging and rewarding career path, click below to learn more about working at DPI and explore our current job opportunities.