New Plymouth, Idaho · Available 24/7
Concrete built
to hold the load
WG Concrete LLC handles excavation, foundations, decorative flatwork, and retaining walls across the Treasure Valley — one crew, start to finish.
Dependable concrete work from a mason who still pours the slab
WG Concrete LLC is owned and operated by William Griffith, a concrete mason and carpenter with nearly a decade of hands-on experience. William started in the trades framing and finishing homes, then moved into concrete because that is where the work either holds up or it doesn't.
Today we handle everything from raw site excavation through the final broom or stamp finish, so there is one crew accountable for the whole job. Based in New Plymouth, Idaho, we serve homeowners, builders, and commercial clients throughout the Treasure Valley.
Excavation & Site Preparation
Demolition, grading, trenching, and groundwork to get your project started right.
Concrete Foundations & Structural Slabs
Slab-on-grade foundations, footings, stem walls, and structural slabs for new builds and additions.
Decorative Concrete & Outdoor Living
Stamped concrete, custom patios, pool decks, and decorative finishes that elevate your outdoor space.
Retaining Walls & Earth Retention
Poured concrete walls, block systems, hillside stabilization, and engineered drainage solutions.
Why homeowners and builders choose WG Concrete
Experienced crew
Nearly a decade of concrete masonry and carpentry experience on every job.
Available 24/7
We answer the phone whenever your project needs us, including nights and weekends.
Structural first
Proper base, steel, and drainage — not just a pretty finish.
One crew, start to finish
Excavation, flatwork, foundations, and walls handled by the same accountable team.
Built to spec
We show up when we say we will and build to the plan every time.
Clear communication
Straight talk, honest timelines, and no surprises when the concrete truck arrives.
What Our Clients Say
"I needed a set a stairs to get from my driveway to my back porch and William did an awesome job with them! It wasn't a big job but he still took the time to work with me and make sure I got what I wanted and I really appreciated that!"
Gina S.
Serving New Plymouth and the Treasure Valley
Towns we cover
New Plymouth, ID
Contact WG Concrete
Ready to start your project? Reach out for a consultation and let us help bring your vision to life.
Business Hours
Available 24/7
Service Area
New Plymouth, ID