Owner and founder, Tim Dimarco, found a passion and love for welding through watching his grandfather work at a steel factory. The products and the artwork, that the molten metal could become was inspiring. Not many years later, When he went into the Army as Airborne Infantry, welding took a backseat, but his identity as a soldier increased; we are proud to be veteran-owned and operated, and to offer a military discount to other current soldiers and veterans.

After the Army Tim with the help of the VA went to WTTI (Welder testing and training institute) to become certified in various welding styles, techniques, and positions. After countless hours in the field and some custom fabrication positions D4 Welding was born!

Tim Dimarco and Jen Hertzog met years back in Chester County; their welding families brought them into crossed paths. Eventually, Tim went off to the army and Jen left to pursue her own course. Five or six years after she left, Jen came back to the area and saw that Tim was starting his own welding company! And as fate would have it, welding brought their paths together again. With Jen at the helm, the D4 Welding company that Tim founded became the D4 that we know and love today.