Since 2000
KRG
UNDERGROUND
Underground utility installation, excavation, and site development for Clark County, Washington.
Get In Touch Underground utility installation, excavation, and site development for Clark County, Washington.
Get In TouchKRG Underground Inc has been delivering reliable underground utility and excavation services to the communities of Southwest Washington since 2000. From sewer and water main installation to full site development, we bring over two decades of experience, precision equipment, and a reputation built on doing the job right the first time. We work with general contractors, developers, municipalities, and homeowners across Clark County.
Sewer, water, and storm system installation for residential, commercial, and municipal projects throughout Clark County.
Precision grading, trenching, and earthmoving with GPS-guided equipment for projects of all sizes.
Full site preparation including clearing, grading, and infrastructure for new construction and development projects.
Design and installation of storm drainage systems, retention ponds, and erosion control solutions.
Safe, efficient demolition services for structures of all sizes with responsible material disposal and recycling.
Engineered retaining wall construction for slope stabilization, erosion prevention, and landscape grading.
Precision grading and excavation
On time, on budget delivery
Responsive, professional service
25+ years of proven results
"To deliver underground utility and excavation services with integrity, precision, and reliability — building the infrastructure that our communities depend on, one project at a time."
KRG Underground Inc was founded by Randy Matson in Yacolt, Washington. What started as a small operation has grown into one of Clark County's trusted underground utility contractors, with a track record spanning hundreds of residential, commercial, and municipal projects.
We've built our reputation on straightforward communication, reliable timelines, and quality workmanship. Our crew runs modern, well-maintained equipment and brings the expertise to handle everything from a residential sewer lateral to a major subdivision's complete underground infrastructure.
Based in Yacolt and serving all of Clark County, we work with general contractors, developers, engineers, and municipalities who need underground work done right.
Battle Ground, WA
Battle Ground, WA
Complete sewer and water lateral installation for a 24-lot residential development, including connection to city mains and final grading.
Vancouver, WA
Vancouver, WA
Full site preparation and underground utility infrastructure for a 15,000 sq ft commercial retail building, including storm detention and fire line installation.
Ridgefield, WA
Ridgefield, WA
Installation of 1,200 linear feet of storm main with catch basins and a stormwater retention facility for the city's downtown improvement project.
Yacolt, WA
Yacolt, WA
Turnkey underground infrastructure for a 40-lot subdivision — sanitary sewer, water mains, storm drainage, and roadway subgrade preparation.
P.O. Box 670
Battle Ground, WA 98604
Serving Clark County, WA