Grade 0′-0″ · Treasure Valley, Idaho
The gold standard in moving dirt.
Complete site development from first cut to final grade — home sites, driveways, underground utilities, land clearing, septic systems, and sewer connections. One contractor for all of your ground work.
- Licensed & bonded — ID & OR
- Owner on every job site
- 30+ years on the iron
Cut 1′-6″ · Who we are
Serving the Treasure Valley for over 30 years
Lewis Excavation serves the Treasure Valley around Boise, Idaho as well as Eastern Oregon. With over 30 years of experience in commercial and residential site development, we handle a wide variety of excavation work — all sizes of projects, big and small.
We take your site from clearing to concrete-ready without you having to line up a different contractor for every phase of the ground work.
Meet the crewCut 4′-0″ · Services
What we dig, trench, and grade
Three core services cover most projects — and the full scope list below covers everything in between.
Residential services
Complete site development from the ground up — clearing, home site cuts, driveways, utility trenching, and final grading. One contractor, concrete-ready.
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Sewer connections
Sewer laterals and city main taps for homes and businesses where a septic system can't be installed — including the full City of Boise permit process.
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Septic systems
Licensed, bonded, and insured for complex and standard septic systems in Idaho. Thirty years of installs across four states, with cleanup second to none.
View serviceFull scope of work
Residential & commercial- Land clearing & grubbing Site prep
- Home site cuts & pad prep Residential
- Driveways & parking lots Res / Com
- Underground utilities & trenching Power · Water · Gas
- Septic system installation Licensed
- Sewer laterals & main taps Res / Com
- Water mains & storm drains Commercial
- Subdivision development All phases
- Demolition & cleanup Tear-down
- Road prep, concrete & asphalt prep Finish
Cut 6′-0″ · Why choose us
We set the standard on every project
We focus on you
Experience and knowledge in excavating, combined with customer service that's second to none.
Owner on site
Beyond a knowledgeable, professional crew — the owner works most job sites and stays hands-on through the whole project.
Cost efficient
A quality product at a fair price, scoped honestly in the bid.
Impeccable safety
Zero workplace accidents. Zero days lost. That record is no accident.
Dependability
We don't just make a showing — we finish our projects, and they're done on time.
Reputation
Most of our customers are repeat customers, and they recommend us across the Treasure Valley.
Cut 8′-0″ · Client log
Kind words from past clients
“Excellent communication! Project was done before we were planning to have it done! Highly recommend!”
“Absolutely great finished project! Very friendly employees made our project fun. Thank you!”
Ready to break ground?
Free bids · No obligation · Owner picks up the phone