SBA-Certified VOSB & HUBZone · Ellensburg, WA
Basalt Site Services is an Ellensburg-based civil contractor serving public and private clients across Central Washington — grading, demolition, and structural excavation through underground utilities, septic systems, and EV charging infrastructure. Self-performed with Steelwrist-equipped excavators and managed from preconstruction through final completion.
WA Contractor CC BASALSS766KM · UBI 605-498-863 · UEI QCX1LN9V9EM5 · CAGE 106M0
Federal & state certifications
SBA-certified VOSB and HUBZone. Washington OMWBE SBE and PWSBE. SAM.gov active — UEI QCX1LN9V9EM5, CAGE 106M0, primary NAICS 237110. Certification documentation can be in your compliance file the same day.
What we do
The same estimating discipline, submittal process, and documentation standard applies whether we are working on a large-scale civil site package or digging a residential foundation.
Water, sewer, and storm utilities; grading and structural excavation; roadway and approach improvements; curb, sidewalk, and ADA ramp work; erosion control. Prevailing wage, certified payroll, submittals, and record drawings handled in-house.
Civil scope →
Self-performed civil scope for EVSE installations: conduit trench, equipment pads, demolition, ADA improvements, patching, and restoration. Three completed charging projects, including two state agency contracts delivered as prime.
Teaming & scope →
Driveways, building pads, foundation excavation, septic systems, drainage corrections, culverts, and land clearing for Kittitas Valley property owners. Fixed bid-item pricing and a clean site at closeout.
Residential scope →The equipment advantage
Every Basalt excavator runs a Steelwrist tiltrotator — a powered coupler that rotates the attachment a full 360° and tilts it 40° each way. The operator works from wherever the machine happens to sit instead of repositioning to square up on the work.
On your job that shows up as money and days: one machine trenches, sets pipe, trims footings, grades shoulders, and handles demolition without a second piece on site — less to mobilize, less to restore, and a schedule that holds.
Why contractors keep us on the list
Both owners hold construction management degrees from Central Washington University, backed by years of estimating and managing public works, substation, data center, and commercial projects. That shows up in what a general contractor actually feels on a job: quantities that match the bid, submittals approved the first time, and a schedule you can build around.
Proposals are written as itemized bid schedules with units, quantities, and unit prices, so differing conditions get priced against a documented basis instead of argued after the fact.
Site-specific safety plans, schedules of values, product submittals, certified payroll, FHWA 1391 reporting, and record drawings are prepared by the same people running the work.
We bid from tracked production on our own equipment, not published averages. That is why our quantities hold and why we can price tight-access work other contractors load with contingency.
The people who bid the job are the people on site. Specialty scope such as paving, electrical, and striping is subcontracted to named, insured firms disclosed at bid.
Selected past performance
A few representative projects. The full record is on the projects page; reference contacts are furnished on request.
Prime contractor for Central Washington University: 130 new HDPE water services, water mainline extensions, pavement and concrete repair, and final restoration across an occupied student housing complex. Prevailing wage; Notice of Completion filed May 2026.
Subcontractor to the paving prime on a City of Ellensburg federal-aid overlay: demolition and subgrade preparation for 145 ADA-compliant curb ramps, sequenced block by block on active city streets with full federal-aid reporting.
Prime contractor at the WDFW Region 3 headquarters in Yakima: demolition, conduit trench, equipment pads, ADA improvements, patching, and restoration at an operating state facility. Final completion certified June 2026.
Kittitas Valley homeowners
We build driveways, set septic systems, fix drainage, cut building pads, and clear ground for people who live here. These are our neighbors, and this work gets the same planning, the same equipment, and the same standard of finish as any contract we hold.
The same owners who run the public works jobs walk your property and price it — a written scope with a fixed price per item, and a clean site when we leave. Call and you talk to an owner.
Send us the plans, the bid date, and the scope you need covered. You will get an itemized proposal and a direct line to the owner managing the work — not a call center.
