Pipe Jacking Trenchless

Pipe Jacking Trenchless has served the Southwest US tunneling & boring market for over 27 years. Specializing in the installation of conduits for water, wastewater, storm drain, & oil & gas by means of direct pipe jacking or two pass installation, PJTI has the equipment & personnel to tackle any job. Our capabilities range from small diameter (8-24”) high precision pilot tube sewer installations, to mid-size (24-60”) auger boring installations, all the way up to 12’ diameter rib & lag tunnels utilizing either wheel style tunnel boring or shielded excavator machines. Due to our large inventory of tunnel boring equipment, PTJI also provides equipment rentals to contractors all over the US & Canada. PJTI currently holds contractors licenses in California, Nevada, & Arizona.

  • About
  • Services
  • Markets
  • Projects


Pipe Jacking Trenchless, as its name suggests, is an underground contractor that services all markets of trenchless excavation, except for horizontal directional drilling (HDD). Boasting one of the largest inventories of tunnel boring/excavating equipment on the West Coast ranging in diameters from 42” to 144”, we have the piece of equipment to fit your project. If we don’t, we can build it. Having recently become a business unit of Primoris, PJTI has re-entered the horizontal boring market to service the boring needs of other PSC business units in the pipeline & underground utility market.

Pipe Jacking Trenchless became a PSC business unit in June of 2016. PJTI operated as Pipe Jacking Unlimited for just over 27 years prior to the sale. PJU founder Tony DeAguiar started out in the auger boring business, serving the Southern California market for many years. Over time, PJU began to venture into larger diameter tunnel work, with Tony taking a strong interest in fabricating his own tunnel boring/excavating equipment. By 2008, PJU was primarily a Tunneling Contractor serving the states of California, Nevada, & Arizona. As the years past, Tony continued to increase the quantity and types of tunnel excavating equipment in the PJU quiver as well as develop a large group of loyal employees. Those employees and the equipment built by PJU are at the core of the PJTI business unit and are dedicated to the continued success of the company as a part of PSC.



  • Tunnel Boring/Excavation & Auger Boring Equipment


  • Direct Pipe Jacking (single pass & dual pass installations) of Steel Casing, Reinforced Concrete Pipe (RCP), & Fiberglass Reinforced Mortar Pipe (FRP).
  • Traditional Tunnel Construction using steel rib & wood or steel lagging, liner plate, or hard rock ground support methods.
  • Hand mine excavation for short drives from 30” to 144”.
  • Tunnel boring/excavating equipment inventory ranges from 42” to 144” including open face wheel TBMs, closed face screw conveyor Earth Pressure Balance (EPB) TBM’s, & shielded excavator TBMs.


  • Pilot tube installation of water & wastewater conduits requiring high precision.
  • Auger boring machine direct pipe jacking of steel casing (single pass & dual pass installations) ranging in size from 16” to 72”.

Equipment Rental

  • All PJTI equipment is available for rental. From bare TBM rentals to turn key tunneling systems.

PJTI does not perform Horizontal Directional Drilling (HDD) services at this time.


  • Water & Wastewater
  • Storm Drain
  • Pipeline
  • Utilities & Distribution
  • Tunnel Boring/Excavation Equipment Rentals



5486 Industrial Parkway
San Bernardino, CA 92407