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.
Our Residential Excavation Services
We provide residential excavation and site preparation services for new construction, property improvements, and select commercial projects. Each service is completed with attention to site conditions, drainage, and local building requirements.
Site Preparation
& Foundation Excavation
Complete residential site preparation for new home construction and property development. We prepare stable, build-ready ground from initial clearing through foundation excavation.
Land Clearing & Lot Preparation
Foundation Excavation
Rough & Finish Grading
Structural Backfill & Compaction
Utility & Septic Excavation
Safe and precise underground excavation for residential infrastructure.
Water, Sewer & Power Trenching
Sewer & Water Line Replacement
Septic System Excavation
Underground Utility Preparation
Grading & Drainage Solutions
Professional grading and drainage systems designed to manage stormwater and protect foundations in Eastern Washington conditions.
Finish Grading & Regrading
Stormwater Drainage Planning
French Drains & Yard Drainage
Slope Stabilization
Driveways
& Property Improvements
Excavation services that improve access, function, and long-term property value.
Gravel Driveway Excavation
& Base PrepDriveway Removal & Replacement
RV Pads & Shop Site Prep
Patio & Outdoor Base Preparation
Providing specialized earthwork for residential and commercial developments throughout Spokane County and the Inland NW
Why Homeowners Choose Avey Excavation
Residential excavation requires more than equipment. It requires precision, planning, and an understanding of how soil, drainage, and grading affect long-term property performance.
Homeowners choose Avey Excavation because we focus on doing the groundwork correctly the first time.
Accurate elevation control to support proper drainage
Compaction standards that reduce settling
Clear timelines and communication throughout the project
Clean, organized job sites that respect your property
Experience with local soil and seasonal conditions
Our work is built to support everything that comes after — foundations, driveways, utilities, and landscaping.
Residential Site Preparation
Proper site preparation is the first step in any successful home construction project. Soil conditions, drainage patterns, and elevation changes must be evaluated before foundation work begins.
Our residential site prep services include:
Clearing and stripping organic material
Rough and finish grading
Building pad preparation
Subgrade evaluation and compaction
Elevation adjustments for drainage control
Correct preparation reduces the risk of settlement, drainage problems, and foundation movement later in the project.
Foundation Excavation & Grading
Foundation excavation sets the structural footprint of your home. Proper depth, elevation control, and grading determine how well the structure performs over time — especially in areas with seasonal moisture and freeze-thaw cycles.
We provide:
Excavation for basements, crawl spaces, and slab foundations
Subgrade shaping and compaction preparation
Rough grading to establish approved elevations
Finish grading to direct water away from the structure
Precise grading and controlled compaction help reduce settlement, prevent drainage issues, and protect long-term foundation stability.
Utility Trenching
(Water, Sewer & Power)
Utility trenching requires precise depth control and proper backfill to protect underground infrastructure.
Our trenching services include:
Water service line installation
Sewer connections
Electrical conduit trenching
Gas line trenching
Irrigation main line trenching
Each trench is excavated to required depth and slope, then backfilled and compacted to minimize future settlement.
Septic System Excavation & Installation
For properties not connected to municipal sewer, septic systems must be excavated according to approved site plans and soil conditions.
We provide excavation for:
Septic tank installation
Drain field preparation
Distribution line trenching
System expansion or replacement
Proper grading and elevation are essential to ensure long-term system performance.
Drainage Solutions & Stormwater Management
Managing water flow around your home is critical to protecting foundations, driveways, and landscaping.
Our drainage services include:
French drain installation
Swales and grading corrections
Stormwater pipe installation
Downspout tie-ins
Surface water redirection
Addressing drainage at the excavation stage helps prevent erosion, pooling, and structural issues.
Driveway Excavation & Base Preparation
A driveway is only as durable as the base beneath it. Proper excavation depth, structural base rock, and controlled compaction are essential for long-term performance.
We provide:
Gravel driveway installation
Driveway regrading and reshaping
Concrete and asphalt driveway base prep
RV and shop pad excavation
Patio base preparation
Removing unstable material and establishing proper slope helps prevent pooling water, cracking, and premature surface failure.
Yard Grading & Leveling
Uneven terrain can lead to standing water, soft ground, and unusable outdoor space.
We provide:
Property regrading
Leveling for landscaping or sod
Preparation for fences and outbuildings
Settlement correction
Precise grading improves drainage flow and creates a stable surface for future improvements.
Sprinkler System Trenching
Irrigation systems require clean, consistent trench lines to protect water lines and ensure proper installation.
Our services include:
Trenching for sprinkler systems
Depth control for main and lateral lines
Proper backfill and compaction
Coordination with landscape installation
Careful trenching reduces the risk of line damage and surface settling after installation.
Sewer Line Excavation & Replacement
Sewer line issues often require controlled excavation to expose damaged pipe and restore proper flow.
Services include:
Sewer line exposure
Full line replacement
Proper bedding installation
Backfill and surface restoration
Correct slope and compaction are critical to prevent recurring drainage problems and surface settling.
Demolition & Material Hauling
Some projects begin with removing existing concrete, asphalt, or unstable material before rebuilding.
We handle:
Small structure demolition
Concrete and asphalt removal
Driveway tear-outs
Export and hauling of excavated material
Removing compromised material ensures the new installation starts on stable ground.
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.