Quality Excavation

Septic Company in Spokane, Washington

(509) 413-7731, Spokane, WA 99203View on Yelp
Quality Excavation - septic in Spokane, WA

About Quality Excavation

Quality Excavation is a Spokane, Washington contractor that combines demolition, excavation, and septic services into a single operation. Spokane's growth over recent decades has brought more redevelopment activity, and that means old systems need to be decommissioned and new ones installed as properties change hands or get repurposed. A contractor with demolition experience is well-equipped for that kind of work. Their excavation capability also means they can handle the significant earthmoving that septic installations, drain field replacements, and site prep all require.

Services

Demolition Services
Excavation Services
Septic Services

Services & Process

Quality Excavation's septic work is backed by serious equipment. Tank installation requires precise digging and proper backfill, and their excavation background means they handle that work with equipment suited to the job rather than improvised methods. They can also decommission old or failed septic systems, which involves pumping, crushing or filling the tank, and properly capping lines per Washington State requirements. For drain field replacements, they clear and grade the site, install new distribution systems, and restore the area after the work is complete.

Service Area

Quality Excavation operates throughout Spokane and the surrounding Spokane County area. Their equipment-heavy operation means they're well-suited for rural and semi-rural properties where access and site conditions require more than a standard service truck. Communities to the north and south of Spokane, along with the broader county, fall within their typical working range.

Frequently Asked Questions

What does it mean to decommission an old septic system in Washington State?
Decommissioning involves pumping out the remaining contents, then either crushing the tank in place or filling it with sand or gravel to prevent collapse. Washington State has specific requirements for how this must be done, and a permit is often required.
How much excavation is involved in replacing a drain field?
Drain field replacement involves removing the old distribution lines and failed media, then grading and preparing the soil for a new system. The amount of excavation depends on the system size and how deep the original installation was.
Can Quality Excavation handle septic work on large commercial properties in Spokane?
Yes, their equipment capacity makes them suited for larger-scale jobs including commercial properties and multi-family sites. Commercial systems have different sizing requirements, so a site assessment is the starting point for any commercial project.
Is demolition ever required before a new septic system can be installed?
Sometimes, yes. If an existing structure, old tank, or previous drain field is in the planned installation area, it needs to be cleared first. Having demolition capabilities in-house means this step doesn't cause project delays.
How long does a full septic system replacement take from start to finish?
A complete replacement, including decommissioning the old system and installing a new one, typically takes two to four days for most residential properties. Permitting timelines from the county can add time before physical work begins.
What soil conditions in the Spokane area affect how a septic system is designed?
Spokane's geology ranges from rocky basalt near the river to sandier soils in other parts of the county, and each affects drainage rates and system design. A percolation test determines how quickly water moves through the soil, which drives the drain field sizing.

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