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Field services · Mesa, Arizona

Everything below the line.

Pro Line Service and its operating companies put crews, equipment and accountability on commercial and public jobs across the Phoenix metro, from the first trench to final retention.

Excavator digging a utility trench beside a substation fence
Open trench with several conduit runs sweeping toward a building
AZ ROC license
ROC 331142
KA · Dual engineering
Bonded & insured
$8M / $15M
Single job / aggregate
Safety · EMR / TRIR
0.76 / 0.00
EMR 2026, NCCI verified · TRIR 2025 and 2026 YTD
Serving the Valley since
2019
What our crews do

Below grade, on schedule, to the drawings.

  1. Trenching & excavation

    Open-cut trench for power, communications and site utilities, backfilled and compacted to spec.

  2. Conduit & duct banks

    PVC and rigid conduit runs, encased duct banks, sweeps and stub-ups set to the drawings.

  3. Directional boring

    Bores under roads, slabs and landscaping where open trench isn't an option.

  4. Vaults & pull boxes

    Set, grade and tie in utility vaults, pull boxes and equipment pads.

  5. Pull support & site work

    Pull line, mandrels, locates and the site coordination that keeps the electrical crew moving.

  6. Service & repair

    Locate, expose and repair damaged underground on active sites and existing facilities.

Recent work

Jobs we’ve built.

A bank of conduit stubbed up and strapped to the building wall, before backfill
Arizona · Manufacturing

Vehicle plant expansion, phase 2

Medium-voltage duct bank plus data, fire alarm, EV charger and site-lighting conduit across the north and south sites, with guard shacks and a switch added by change order.

Inside a finished pullbox: conduit stubs and the ground, ready for wire
Arizona · Manufacturing

Manufacturing campus, site power

Racked-and-encased temporary feeder and primary for construction power, then pullboxes, street-light foundations and slurry-backfilled crossings as the campus built out.

Utility vault with a bank of conduit coming in, before backfill
Phoenix metro · Data center

Data center, phases 2 and 3

Site power with thermal backfill, telecom and Lumen conduit, site lighting, vaults, spoils haul-off and temp power, built across two phases.

For project managers

Paperwork you can set a clock by.

Our billing runs on the same system our office uses to manage every job, so what you need shows up before you ask for it.

Pay apps on your cycle

G702/G703 in your format, submitted on your cutoff every month.

Lien waivers with every payment

Conditional and unconditional waivers ready the day a check clears.

Change orders in writing

Signed COs attached to the pay app they bill on. No surprises.

Retention tracked to closeout

Punch, closeout docs and retention release handled on one list.

The Pro Line family

One standard. Every company.

Pro Line Service is the Arizona holding company behind EarthTech Services, built so every company it brings in runs on the same safety program, systems and way of billing.

Operating company

EarthTech Services

Underground utility and site electrical for electrical and general contractors across the Phoenix metro, Marana, Tucson and Prescott Valley. Based in Mesa.

General contractors

Prequalify us in one click.

Enter your email and we’ll send the full packet: everything your prequal portal asks for, current and signed.

  • W-9
  • Certificate of insurance
  • AZ ROC license
  • Bonding capacity letter
  • Safety program & EMR
  • Project references
  • Financial statements on request
  • Current rate sheet
EarthTech crew working a trench behind safety barricades
Careers

Build with us.

We hire foremen, equipment operators and laborers who take pride in a clean trench and a job closed out right. Steady work, real equipment, a crew that has your back.

To ask about open roles, call (480) 840-5534 or email careers@earthtechservices.com.

Request a bid

Send us the drawings.

Tell us about the job and we’ll come back with questions or a number.

Office
4835 E. Indigo St, Ste 102
Mesa, AZ 85205
We’ll reply with where to send plans and specs.