I am an electrical contractor and I have hired Stone Fox for 2 projects so far. I had them cut a trench for me down the side of a steep hill and also had them do some skid steer auger work for me. It was obvious to me as soon as I saw the owner Morris start to operate his machine that he is an expert at what he does. Its amazing the difference in efficiency and precision between a novice excavator and an experienced company like this. I will be using them for all of my excavation needs.
- Insured
- Bonded
- Local Owned
- 11+ Years of Experience
- Family Owned

About Us
Our Services
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Site Prep & Foundation Excavation
Foundation excavation and site prep in Post Falls, Coeur d'Alene, and Spokane. Building pads, crawl spaces, slab prep, and foundation drains, laser-graded by tiltrotator-equipped excavators. Trusted by award-winning custom home builders.
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Septic System Installation & Repair Services
Licensed septic installer in Post Falls and Kootenai County. New septic systems, septic repair, and drainfield replacement, including Eljen and Aerofin systems. Idaho Complex Septic Installer #15-07617. Financing available.
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Clearing & Grading Services
Land clearing and lot clearing in North Idaho and Spokane. Trees, brush, stumps, and debris removed and hauled or spread on site, then rough graded and ready to build. Tiltrotator excavators work cleanly on steep and wooded lots.
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Drainage Services
Drainage solutions in North Idaho and Spokane: French drains, foundation and gutter drains, dry wells, catch basins, culverts, swales, and rip rap. We fix wet crawl spaces, soggy yards, and washed-out driveways at the source.
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Utility Trenching
Utility trenching in Post Falls, Coeur d'Alene, and Spokane for water, sewer, power, gas, and fiber. Trenches to shops, ADUs, and new homes, dug to depth, bedded, and backfilled. We call 811 locates before we dig.
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Tight Access Excavation
Tight access excavation in North Idaho and Spokane. Our tiltrotator-equipped mini excavator works in backyards, lakefront lots, and narrow gates where bigger machines can't go, with less damage to lawns and landscaping.
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Site Compaction & Concrete Prep
Site compaction and concrete prep for slabs, footings, garages, and shops in North Idaho and Spokane. Base rock placed in lifts, laser-graded, and compacted to 95% Proctor or better. Built for builders and concrete crews.
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Underground Tank Burial
Propane tank burial and cistern installation in North Idaho and Spokane. We excavate, bed, set, and backfill underground tanks to your supplier's specs and grade the area clean when we're done.
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Gravel Driveway Installation
Gravel driveway installation in Post Falls, Coeur d'Alene, and Spokane. Long rural drives and new home driveways built with a compacted base, crushed top rock, a proper crown, and culverts where water crosses.
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Driveway Reconditioning & Ditch Clearing
Gravel driveway repair and regrading in North Idaho and Spokane. We fix potholes and ruts, re-crown the surface, add fresh rock, and clean out ditches and culverts so your drive sheds water and stays smooth.
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Precast Block Retaining Walls
Precast block retaining wall installation in Coeur d'Alene, Post Falls, and Spokane. Engineered concrete block walls with compacted base, drain rock, and drainage behind every wall, including tall walls and walls under driveways.
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Natural Boulder Retaining Walls
Boulder retaining walls in North Idaho built from local granite or basalt. We turn steep hillsides and lakefront slopes into usable yard with natural-looking rock walls set on a solid base with drainage behind every rock.
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Hardscaping
Hardscaping in Coeur d'Alene, Post Falls, and Spokane: landscape rock, paver patios and walkways, steps, borders, and retaining walls. We do the excavation, base prep, and drainage in-house so every project stays level.
Built on Integrity.
Delivered with Precision.
We bring over 11 years of hands-on excavation experience to every project in Post Falls, Coeur d'Alene, Spokane, and beyond.
Licensed & Insured
Every job is backed by full licensing and insurance, so you can move forward with complete confidence in your project and your property.
11+ Years of Experience
Our founder built Stone Fox on more than a decade of real field experience — the kind of expertise that solves problems before they start.
Clear Communication
We keep you informed at every step — no surprises, no runaround. You'll always know what's happening on your land and what to expect next.
Locally Owned & Operated
We're your North Idaho neighbors — rooted in this community and invested in the land we work on. When you call, you talk to the owner.
Quality Craftsmanship
We treat every project as if it were our own property — detail-oriented, thorough, and done right the first time, from excavation to final grade.
5-Star Customer Satisfaction
Homeowners and builders across North Idaho and Eastern Washington trust us with their most important projects — and the reviews speak for themselves.
Ready to Break Ground?
Let's talk about your excavation, septic, or land development project — no pressure, just honest answers.
Get a Free EstimateHear From Our Clients
Real stories from homeowners who trusted Stone Fox Construction with their excavation and septic projects. Watch below to hear it straight from them.
Watch this client walk through their experience working with Morris and the Stone Fox Construction team — from the first call to the finished project.
Stone Fox Construction ClientHear how our team handled a tricky septic repair with careful planning, clear communication, and a clean finish the homeowners were thrilled with.
Stone Fox Construction ClientAnother satisfied homeowner shares their story about our professional septic and excavation services and the quality workmanship you can expect.
Stone Fox Construction ClientReviews
Areas We Serve
- Post Falls, ID
- Spokane, WA
- Spokane Valley, WA
- Coeur d'Alene, ID
- Hayden, ID
- Liberty Lake, WA
- Opportunity, WA
- Garwood, ID
- English Point, ID
- Sturgeon, ID
- Belmont, ID
- Kootenai County, ID
- Bonner County, ID
- Benewah County, ID
- Shoshone County, ID
- Spokane County, WA
- Stevens County, WA
- Spirit Lake, ID
- Clagstone, ID