SITE DEVELOPMENT CONTRACTOR
CA · MT · UT · LICENSED · BONDED · INSURED
+ +

The structural work the West stands on.

Earthwork, deep foundations, shoring, utilities, structural concrete. Performed as a complete site package or as individual scopes — for public agencies, general contractors, and developers across California, Montana, and Utah.

Start a projectView the work
N
SITE WIDTH — 100.0 VW
WHO WE ARE

Hillsides shift. Water finds a way. Concrete doesn't forgive shortcuts. We engineer the work before we mobilize — modeled, sequenced, and priced — then self-perform it to spec on public works, commercial, and high-end residential ground across three states.

SCOPE
EARTHWORK · FOUNDATIONS · UTILITIES · CONCRETE
TERRITORY
CA · MT · UT — HQ CORONA, CA
DELIVERY
FULL PACKAGE OR SINGLE SCOPE
COMPLIANCE
PREVAILING WAGE · CERTIFIED PAYROLL
CAPABILITIES
NO.DISCIPLINEREF / EXPAND
GC—01Earthwork & ExcavationCUT / FILL

Mass excavation, precision grading, trenching, and slope repair — haul-off handled, water controlled.

  • MASS EX & PRECISION GRADING
  • ROADS, PADS & PARKING
  • TRENCHING & SLOPE REPAIR
  • SITE PREP & SOIL STABILIZATION
  • SWPPP & EROSION CONTROL
  • DEMOLITION & HAUL-OFF
GC—02Foundations & DrillingDRILLED / CAST

Drilled caissons, piers, grade beams and footings — deep or shallow, seated where the soils report says.

  • DRILLED CAISSONS & PIERS
  • HELICAL PILES
  • GRADE BEAMS & FOOTINGS
  • UNDERPINNING & REPAIR
GC—03Walls & ShoringWALLS / TIEBACKS

Every wall system that holds grade — cast-in-place, shotcrete, slot-cut, masonry — with the shoring to build them safely.

  • CIP, SHEAR & SHOTCRETE WALLS
  • SLOT-CUT & MASONRY
  • SHORING & TIEBACKS
  • WATERPROOFING & BACKFILL
GC—04Wet & Dry UtilitiesWET / DRY

Storm, sewer, water, and joint trench — laid to grade, inspected once, backfilled right.

  • STORM & SANITARY SEWER
  • WATER & FIRE SERVICE
  • JOINT TRENCH & CONDUIT
  • SUBDRAINS & SITE DRAINAGE
GC—05Structural ConcreteSLABS / PT

The difficult pours — structural decks, podium and post-tension slabs, vertical concrete, seismic retrofit.

  • STRUCTURAL DECKS & PT SLABS
  • PODIUM & VERTICAL CONCRETE
  • SEISMIC RETROFIT
GC—06Flatwork & FinishFINISH / SITE

The finish work on top — driveways, curb and gutter, patios and hardscape, graded to drain.

  • DRIVEWAYS & FLATWORK
  • CURB, GUTTER & SIDEWALK
  • DECORATIVE & HARDSCAPE

PUBLIC WORKS · COMMERCIAL SITEWORK · RESIDENTIAL COMMUNITIES & ESTATES · CIVIL INFRASTRUCTURE

SELECTED WORK

Selected
work

GRADING · CUT, FILL & PAD CERTIFICATIONSTATUS: IN PROGRESS
CAT excavator cutting a pad — Grading No. 001
01

Grading No. 001

EARTHWORK
STRUCTURAL CONCRETE · FOUNDATION WALLSSTATUS: STRIPPED & CURING
Excavators over freshly stripped foundation walls — Walls No. 002
02

Wall No. 002

CONCRETE
DEEP FOUNDATIONS · DRILLED CAISSONSSTATUS: PERMITTING
Drilled-caisson rig over foundation pit — Caissons No. 003
03

Caissons No. 003

DEEP FOUNDATIONS
FOUNDATIONS · FIRST LIGHT, FIRST DIGSTATUS: ON SITE 06:00
Excavator boom framing sunrise over a formed foundation — Site No. 004
04

Site No. 004

SITEWORK
NEXT PROJECTSTATUS: ACCEPTING BIDS
YOUR PROJECT
STARTS WITH
A CONVERSATION Start a project ↗
05

No. 005 — Open

OPEN
HOW WE DELIVERPLAN TO CLOSEOUT

Predictable,
by design.

For general contractors, developers, and public agencies: the same controlled sequence on every award — full site package or single scope.

01Intake

Your plan set lands with preconstruction. Takeoffs, soils, and site data start the same day — any format, any delivery method.

02Model

Existing conditions, utilities, and quantities built into one site model. Conflicts are found on screen — before mobilization, not after.

03Price

A complete proposal — quantities, sequence, and schedule behind every line — typically returned within 48 hours. A number that holds.

04Execute

Self-performed crews on GPS machine control, staked to the model, with daily production tracked against plan.

05Close out

As-builts, QC records, and certified payroll documented as the work happens — turnover is a handoff, not a hunt.

PRECONSTRUCTION

Put a number
on your project.

Send your plan set for a complete proposal — full site package or individual scopes. Preconstruction returns quantities, sequence, and a firm number. Prevailing-wage and certified-payroll ready; site visits available in all three states.

Request a bid Schedule a site visit or call (406) 209-7300
TECHNICAL SERVICES

Preconstruction & technical services.

Beyond self-performed construction, our estimating, modeling, and project-controls groups support developers, owners, and contractors on defined scopes — delivered remotely, on schedule.

FS—01 Bid & estimate desk

Your plan set in, a defensible number out: takeoffs and quantity surveys across dirt, concrete, rebar, and pipe — for developers, lenders, and contractors of every trade.

TAKEOFFS · ESTIMATES · REMOTE FS—02 Constructability & VE

Plan sets torn down by people who build: redlines, cost drivers, sequencing traps, and value engineering that cuts cost without cutting section. Set in, report out.

REDLINES + REPORT · REMOTE FS—03 Site intelligence

Drone and data on a subscription: orthomosaics, 3D models, earthwork and stockpile quantities, progress documentation, owner-ready monthly reports.

RECURRING · MAPS · QUANTITIES FS—04 Machine control & GPS

We set it up, calibrate it, load the models, train your operators — then leave. Your fleet runs on our system; you keep the production gains.

SET UP · TRAIN · HAND OFF FS—05 Remote project controls

Your job’s back office, run by our systems: schedule updates, cost and production tracking, daily report pipelines, documentation that survives an audit.

CONTROLS · REPORTING · REMOTE FS—06 Operations consulting

For any self-performing contractor — concrete, rebar, utilities, grading, drilling, site dev: estimating systems, GPS rollout, field SOPs, job costing, and the AI-run back office we use ourselves.

SYSTEMS · SOPs · ADVISORY

CONSTRUCTION LAYOUT ONLY — BOUNDARY & LEGAL SURVEYS ARE REFERRED TO A LICENSED PLS.

GRAIL OSPROPRIETARY PLATFORM

Built on our own
platform.

Every number in our bids and every date on our schedules comes off GRAIL OS — the platform we built that reads permits, plats, annexations, market pricing, and public records nightly, runs due diligence on every parcel, and sequences our jobs before a machine mobilizes. It’s why our bids land in days, our budgets hold, and our sites don’t get surprised.

  • Due diligence on every parcel before we price it
  • Live market data — permits, plats, costs, lettings, land sales
  • Plan set to bid to sequence in days, not weeks
  • Every job tracked daily against its own model

And because the engine is software, other contractors can run it too — licensed by territory, one operator per market.

Open GRAIL OS ↗ Request a territory
3States Licensed & Operating
1Platform Behind Every Bid
100%Core Scopes Self-Performed
48HRBid Turnaround
FAQ

Common
questions.

What types of projects does GRAIL take on?

Public works, commercial sitework, and high-end residential communities and estates across California, Montana, and Utah — delivered as a complete site package or as individual scopes: earthwork, deep foundations, shoring, wet and dry utilities, structural concrete, and flatwork.

Do you bid public works and prevailing-wage projects?

Yes. We pursue public works in all three states, with prevailing-wage and certified-payroll compliance run through our project-controls platform.

Can we award a single scope instead of the full package?

Yes. Every discipline we self-perform can be contracted individually — grading, drilling, utilities, or concrete — under your general contractor or directly with the owner.

How fast do you return bids?

A standard plan set comes back as a complete proposal — quantities, sequence, and a firm number — typically within 48 hours.

Where are you licensed?

GRAIL is licensed, bonded, and insured in California, Montana, and Utah, headquartered in Corona, California.

What do you need from us to bid a project?

A plan set in any standard format. Email it to build@grailconstructionengineering.com with your bid date, and preconstruction takes it from there.

CONTACT

Buildwith us.

build@grailconstructionengineering.com +1 (406) 209-7300
PRECONSTRUCTION · BID REQUESTS · GENERAL INQUIRIES

HQ CORONA, CA · SERVING CALIFORNIA · MONTANA · UTAH
MON–FRI · 06:00–17:00