Water, sewer, electrical and site utility installation and connections for new construction across the Tri-Cities, WA.
Getting utilities to a new build or an addition means more than digging a ditch. Big Mountain Excavation installs and connects water, sewer, electrical and site utilities for homes and small commercial projects across the Tri-Cities, coordinating with the utility companies, your builder and your electrician so every line is in the right place at the right depth.
The business is owner-operated, has been in business for more than 8 years, and is fully insured. Whether you are connecting a new home in Pasco or running site utilities for a build in Walla Walla, the utility work is coordinated, inspected and built to last.
Where municipal water and sewer are available, we install the service lines and laterals that connect your property to the main. We trench to the required depth and slope, bed the pipe, and backfill and compact so the line is protected and the ground above it stays stable.
We coordinate the tap, the inspection and the connection with the utility so the work happens on schedule and the service is ready when you need it.
We install electrical conduit and site utility runs, trenching to the depth required for the service and bedding the conduit so it is protected from settling and future loads. We work with your electrician to make sure the path, depth and backfill meet their requirements.
Proper conduit installation now prevents the damage and rework that come from a trench that was dug too shallow or backfilled carelessly.
On a new build, the site utilities all have to come together at the right time. We plan the trench paths, the connection points and the inspection schedule so water, sewer and electrical are ready when the building needs them.
Utility work is coordination work. We arrange 811 locates before any digging, schedule connections and inspections with the utility companies, and work around existing underground utilities so your project is not waiting on a ditch or a missed locate.
You have a single point of contact who knows where every line is and when every connection is scheduled.
We leave the site clean and the ground compacted so the lines are protected and the surface is ready for the next step, whether that is a driveway, a slab or finished landscaping.
Because we also excavate and grade, we can take a project from the utility trench straight through to a level, buildable site without a second crew.
Big Mountain Excavation is owner-operated, has been in business for more than 8 years, and is fully insured. We serve Kennewick, Pasco, Richland, Walla Walla and the surrounding area.
From a single service lateral to a full site utility package for a new home, we bring the equipment and the experience to get it done. Request a free estimate to get started.
Yes. We install and connect water and sewer laterals to the municipal main and coordinate the tap and inspection with the utility.
Yes. We trench and install conduit to the depth and path your electrician requires, and we bed and backfill to protect it.
Yes. We arrange 811 locates before any digging and work around existing underground utilities.
Kennewick, Pasco, Richland, Walla Walla and the surrounding Tri-Cities area.
Big Mountain Excavation
Insured · Experienced · Local