Underground & Heavy Equipment

We own the iron and the crews that run it

Underground utility work is on the critical path of nearly every site. We self-perform trenching, duct banks, and utility installation with an owned Cat® equipment fleet and certified operators — so the dirt work never waits on a subcontractor's calendar.

Underground Capabilities

From open trench to backfill and restoration

Trenching & Excavation

Open-cut trenching, mass excavation, and precision digging for utilities, foundations, and site infrastructure.

Duct Banks & Conduit

Concrete-encased duct banks, multi-way conduit runs, and pull-box / vault installation for primary distribution.

Primary & Secondary Utility

Underground electrical distribution, transformer pads, switchgear foundations, and utility tie-ins.

Wet Utilities & Coordination

Coordination of water, sewer, and storm crossings with electrical and communication pathways.

Site Preparation & Grading

Clearing, rough and fine grading, pad preparation, and compaction for building and equipment areas.

Backfill & Restoration

Engineered backfill, compaction testing coordination, and surface restoration to spec.

Equipment Fleet

An owned Cat® fleet, ready to mobilize

Owning our equipment means we control availability, maintenance, and cost. No waiting on rental yards, no markup on someone else's machine — the right unit shows up when the schedule calls for it.

Arizona Electrical Solutions' owned Caterpillar fleet — a CAT 310 excavator with a skid steer and mini excavators staged at the Tucson equipment yard, Catalina Mountains in the background
Part of our owned Cat® fleet, staged and ready in Tucson.
Equipment ClassTypical UseOn Site For
ExcavatorsTrenching, mass excavation, duct bank digUtility installation, foundations
Wheel & Skid-Steer LoadersMaterial handling, backfill, site cleanupEarthwork, grading support
Backhoe LoadersVersatile dig / load on tight sitesUtility tie-ins, spot excavation
DozersGrading, pushing, pad preparationSite prep, rough grading
Compactors & RollersTrench and pad compactionBackfill, subgrade
Trenchers & Support EquipmentContinuous trench, dewatering, haulingLinear utility runs

Fleet composition scales to project size. Equipment classes shown are representative of typical mobilization.

Why It Matters

The schedule advantage of self-performing dirt

When the underground scope is subbed out, the general contractor inherits a coordination problem: the trench has to be open when the electrical crew is ready, and backfilled before the next trade arrives. We solve that by running both crews ourselves.

Our operators and our electricians work from the same schedule, the same submittals, and the same project manager.

See how it ties to electrical
  • Equipment availability we control, not a rental yard
  • Operators and electricians on one coordinated schedule
  • No sub-to-sub hand-off between trench and conduit
  • Single accountability for the underground scope
  • Maintained fleet — fewer breakdowns, fewer delays
  • Cost certainty without third-party markup

Our Work

Underground & trenching in the field

Self-performed trenching and underground utility work with our owned Cat® equipment fleet — on commercial sites and in the street.

Cat 303.5 excavator trenching at a commercial site in Arizona

Trenching  •  Owned Cat® Fleet

Site Trenching

Underground conduit installed in an open street trench in Tucson, Arizona

Underground Utility  •  Tucson, AZ

Conduit & Duct Bank

Operated Safely

Underground work, done by the book

Locate & Verify

Utility locating and potholing before the bucket breaks ground.

Certified Operators

Trained, certified equipment operators on every machine.

Trench Safety

Shoring, sloping, and competent-person oversight on excavations.

Got a site that needs to move dirt and power?

We'll mobilize the right equipment and crews to keep your underground scope off the critical path.

Request a Bid