Residential Excavation
Contractor in Spokane, WA
Avey Excavation provides professional residential excavation services throughout Spokane, Spokane Valley, Liberty Lake, and surrounding Inland Northwest communities. From site preparation and grading to septic excavation and driveway installation, our work is focused on proper compaction, drainage performance, and long-term stability.
Site Preparation & Land Clearing
Successful construction begins with proper site preparation. Whether you are building a new home, shop, or ADU, preparing the land correctly prevents drainage issues and structural settlement later.
Our site preparation services include:
Land clearing and lot preparation
Brush removal and debris clearing
Foundation excavation support
Rough and finish grading
Shop and detached structure pad preparation
We focus on creating stable, build-ready surfaces that support construction timelines and meet project requirements.
Foundation Excavation & Grading
Proper grading is one of the most important aspects of residential excavation in Spokane. Elevation control, slope direction, and subgrade preparation all affect how water moves across your property.
We provide:
Excavation for basements, crawl spaces, and slab foundations
Subgrade shaping and compaction preparation
Rough grading to establish elevations
Finish grading for drainage control
Correct grading helps protect foundations, reduce standing water, and improve long-term performance.
Utility Trenching & Underground Excavation
Accurate trenching ensures that water, sewer, and power systems are installed safely and at the proper depth.
Our utility trenching services include:
Water line trenching
Sewer line trenching and replacement excavation
Electrical conduit trenching
Gas line trenching (as required)
Irrigation trenching
Underground utility coordination
We prioritize safe digging practices and clear trench lines that support efficient installation.
Septic System Excavation
Many residential properties in Spokane County rely on septic systems. Excavation must be carefully planned to support proper tank placement and drain field layout.
We provide excavation support for:
Septic tank installation
Drain field excavation
Septic system replacement projects
Rural and acreage properties
Proper excavation helps ensure system longevity and reliable performance.
Drainage & Erosion Control Solutions
Spokane’s seasonal snowmelt and variable soil conditions can create drainage challenges. Poor grading often leads to standing water, foundation moisture issues, and erosion.
We provide practical drainage excavation solutions, including:
French drain excavation and installation support
Yard regrading for improved runoff
Downspout drainage improvements
Stormwater management grading
Slope stabilization and erosion control
Our goal is to direct water away from structures and improve usable outdoor space.
Driveway Excavation & Property Improvements
Driveways and outdoor areas require proper base preparation to withstand vehicle traffic and weather cycles.
Our services include:
Gravel driveway installation
Driveway regrading and reshaping
Patio and outdoor living preparation
RV pad and shop pad excavation
Retaining wall base preparation
We focus on creating durable surfaces that improve both access and function.
Demolition & Material Hauling
We provide limited residential demolition and material removal services as part of site preparation and property improvement projects.
• Small structure removal
• Concrete removal
• Debris hauling related to excavation work
That keeps it visible but not dominant.
Let’s Discuss Your Upcoming Excavation Project
If you’re preparing for foundation work, driveway installation, grading, or underground utilities, we’re available to review your property and provide a clear estimate. Our team works carefully to ensure your project begins on stable ground.