Wenatchee’s Trusted Excavation And Site Development Contractor

Professional Excavation, Grading, Utilities, Septic, Roads And Driveway Services

Welcome to Gates Brothers Excavation

Gates Brothers Excavation is an owner-operated excavation and site development contractor proudly serving Wenatchee Valley and communities throughout North Central Washington. We specialize in excavation, land clearing, grading, underground utilities, septic systems, road construction, driveways, and complete site preparation. With an owner on-site and a commitment to quality workmanship, clear communication, and attention to detail, we provide dependable solutions for residential and commercial projects while delivering honest service, fair pricing, and clean, professional job sites.

CONTACT US

Contact Us

why choose us?

  • Owner-Led Service

    As a small, owner-operated business, we stay personally involved in every project. Our owner is on-site, accessible, and communicates directly with customers throughout the job.

  • Quality Without Compromise

    We take pride in precise, high-quality workmanship and careful attention to every detail. We also respect your property by keeping our job sites organized and thoroughly cleaned when the work is complete.

  • Clear, Responsive Communication

    We believe great service starts with honest and timely communication. We keep our customers informed throughout the project, answer questions quickly, and provide clear expectations from start to finish.

  • Honest, Fair Pricing

    We provide straightforward pricing designed to deliver excellent value without sacrificing the quality of our work. Our customers know what to expect and can feel confident they’re receiving dependable service at a fair price.

Two yellow construction machines grading a sandy lot near houses and a road
Underground utility conduits in a trench beside a HomeGuard foundation wall at a construction site
Yellow John Deere excavator digging a dirt mound in a dry construction site under a blue sky

CLIENT TESTIMONIALS

Five black stars aligned horizontally on a white background

This is the text area for this paragraph. To change it, simply click and start typing. Once you've added your content, you can customize its design.

Yellow excavator digging a trench in a dirt field with mountains and trees in the background

Excavation Services

Earthmoving of every kind, from opening a raw lot to hauling off spoil at the end. We dig, cut, fill, and haul with machines matched to the job and to the ground they are working in.

VIEW MORE

Residential Excavation

Homeowners get digging that respects the property around it. Basement cuts, shop pads, retaining wall benches and landscape reshaping, all done with access routes planned so lawns, fences, and drives come through the work intact.

VIEW MORE

Commercial Excavation

Larger sites call for phasing, and we plan the dig so your business keeps running. Building pads, parking areas and mass excavation move in stages, compacted to the elevations your engineer signed off on.

VIEW MORE

Foundation Excavation

Footings and stem walls need an exact elevation and undisturbed bearing soil. We dig to the plan, bench into slopes where the ground falls away, and leave a subgrade your concrete crew can build on.

VIEW MORE

Trenching Services

Narrow, straight, and held to depth. Our trenches are cut for footing drains, irrigation, conduit, and buried lines, then bedded and backfilled in lifts so the ground above them stays where you put it.

VIEW MORE

Site Development

Raw acreage becomes a buildable site through layout, cut and fill, pad construction and drainage planning. We sequence the earthwork so utilities, foundations, and access all land where the plans say they should.

VIEW MORE

Land Clearing

Trees, brush, stumps, and old orchard rows come out so the land underneath is usable again. Roots are grubbed, debris is hauled or piled, and the trees you want kept stay standing and undamaged.

VIEW MORE

Grading & Land Leveling

Uneven ground gets shaped until water runs off it and flat areas actually sit flat. Rough and finish grading, slope correction, terracing on hillside lots, and low spots filled and compacted so ponding stops.

VIEW MORE

Driveway Excavation & Grading

New driveways start below the surface. We cut the path, prepare the subgrade, lay fabric and base rock, then crown the surface and set culverts so runoff leaves instead of pooling in the wheel tracks.

VIEW MORE

Road Construction & Development

Access roads are built in layers, not poured out of a truck. Corridor clearing, subgrade preparation, base courses compacted in lifts, ditching, and culverts give a road that carries loaded trucks year after year.

VIEW MORE

Private Road Construction

Shared driveways and easement roads reach the properties public roads never will. We build rural access with turnarounds sized for fire apparatus, gated approaches, and switchbacks that make steep ground drivable.

VIEW MORE

Road Grading & Excavation

Existing roads get reshaped rather than rebuilt. Blading restores crown and cross slope, benching cuts widen narrow stretches, and ditches are reopened so the surface sheds water instead of holding it.

VIEW MORE

Road & Driveway Repair

Potholes, ruts, washboard, and spring washouts all trace back to drainage or a failing base. We fix the surface and the cause together, regraveling, replacing crushed culverts and rebuilding eroded shoulders.

VIEW MORE

Underground Utility Installation

Buried lines are located, planned, and separated before a bucket touches the ground. We trench, bed, sleeve, and backfill for water, sewer, power, and drainage, then restore the surface we opened.

VIEW MORE

Water Line Installation

Supply lines from a meter or a well need depth, bedding, and protection from rock. We install service lines below the freeze line with tracer wire and sleeves under drives, then pressure test before backfilling.

VIEW MORE

Sewer Line Installation

Gravity does the work only if the fall is right. Laterals are laid on consistent grade with correct bedding and haunching, cleanouts placed for access, and connections made cleanly at the main or the tank.

VIEW MORE

Electrical Line Installation

Power reaches shops, wells, and outbuildings through trenches we dig to spec. Conduit and sweeps are set on sand bedding with warning tape above, separated from other utilities and ready for your electrician and the utility inspector.

VIEW MORE

New Construction Septic System

A new home needs its septic located before the house is staked. Working from the approved design, we install tank and drain field in step with the build and keep equipment off the disposal area.

VIEW MORE

Septic System Installation

Tanks are set level on compacted bedding, baffles, and effluent filters go in, risers come to grade for easy service, and pumps or distribution boxes are wired and tested before the ground closes over them.

VIEW MORE

Drainage & Stormwater Solutions

Water that has nowhere to go finds your foundation. French drains, curtain drains, catch basins, downspout lines, swales, and dry wells move runoff away from buildings and off slopes before it does damage.

VIEW MORE

Septic System Excavation

Sometimes the dig is the whole job. We open tank holes to a level bearing surface, cut drain field trenches to grade, and uncover lids or failed lines for pumping, inspection, and repair crews.

VIEW MORE

Septic Drain Field Installation

Effluent disposal depends on level trenches and clean rock. Drain rock or chambers, perforated pipe set on grade, filter fabric and pressure laterals go in to the approved design, then stay protected from traffic.

VIEW MORE

Septic System Replacement

Surfacing effluent, backups, and soggy ground mean a system has reached its end. We work with your designer, decommission the old tank, and install the replacement with the yard and daily household use in mind.

VIEW MORE
Two excavators, one yellow and one black, working on a dirt site under a clear blue sky.
Yellow CAT excavator clearing brush on a wooded hillside under a clear blue sky

A build only goes as well as the ground underneath it. Gates Brothers Excavation handles excavation, site development, land clearing, grading, underground utilities, septic systems, roads, and driveways across Wenatchee, WA and the valley towns of East Wenatchee, Cashmere, Leavenworth, and Chelan, and out through Chelan and Douglas counties. Owner-operated since 2017 and backed by 15+ years in the seat of a machine, we work ground from river bottom to foothill acreage and give you straight answers, a schedule you can plan around, and a clean site. Veterans and first responders receive 10% off. Tell us about the project and we will walk the property and put an estimate together through our contact page.

Blue and white 10% discount ad for veterans, military members, and first responders with claim button

Every project comes down to land that behaves the way the plans assume it will. Gates Brothers Excavation has been shaping ground across Wenatchee, WA since 2017, and the 15+ years behind that work show in the details that are easy to miss until they fail, like a subgrade that holds or a driveway that sheds water. The owner stays on site, so whoever answers your questions runs the machine. Veterans and first responders get 10% off. Tell us about your project on our contact page and we will come look at the ground.


  • Fully Licensed for New Septic Installations
  • Licensed for All Septic Services

Areas We Serve

Gates Brothers Excavation proudly provides reliable excavation services in Wenatchee, WA, and surrounding communities. We serve local property owners with professional excavation, grading, and site preparation services.

Black location pin icon on white background

Wenatchee, WA

Black location pin icon on a white background

East Wenatchee, WA

Black location pin icon on white background

Quincy, WA

Black location pin icon with a white center on a light background

Chelan, WA

Black location pin icon on a white background

Cashmere, WA

Black location pin icon on a white background

Leavenworth, WA

Black map pin icon on a white background

Entiat, WA

Black location pin icon on a white background

Rock Island, WA

Black location pin icon on white background

Waterville, WA

FAQs - Frequently Asked Questions

  • What Types Of Excavation Projects Do You Handle?

    We handle a wide range of residential and commercial excavation projects, including site development, land clearing, grading, underground utilities, septic systems, road construction, driveways, trenching, and foundation excavation.

  • What Areas Do You Serve?

    We serve customers throughout the Wenatchee Valley and surrounding North Central Washington communities, including Wenatchee, East Wenatchee, Chelan, Cashmere, Leavenworth, and areas throughout Chelan and Douglas counties.

  • Do You Install Septic Systems?

    Yes. We provide septic system installation, septic excavation, drain field installation, and septic system replacement. We can help prepare your property and complete the excavation necessary for a properly installed system.

  • Do You Build Roads And Driveways?

    Yes. We provide road and driveway construction for residential, commercial, and private properties. Our services include excavation, grading, site preparation, gravel road and driveway installation, drainage, and repairs.