
Contact Us
Let’s Talk About Your Build
Looking for a smart way to build underground? At FREESTONE UNDERGROUND LLC, we help homeowners and contractors save time, avoid delays, and bring their projects to life with modular precast concrete wall panel systems.
Whether you’re adding a utility room, root cellar, storm shelter, or backup storage, our concrete panels are formed, poured, and delivered ready to install. The modular design creates flexibility in size and layout, and because our systems are pre-engineered, they eliminate the long (and expensive) wait time for design and engineering approvals.
We’re based in Nampa, Idaho, and handle installations throughout the state. Contractors in nearby western states can take advantage of our delivery and self-install kits, which include everything needed for safe, fast setup.


Why Clients Choose Us
Pre-engineered panels mean no design and engineering delays. Each system is sized to your project needs:
Panels install in a day with basic excavation equipment.
Kit includes a custom Tuff Shed or CXT lid.
We deliver custom kits with installation hardware and instructions. Phone support from the guys who build and install them, just in case you have a question.
Get in Touch
We’re here to answer your questions. Whether you want to know lead times, installation steps, or the right lid option, our team is just a call or email away. We’ve worked with builders and homeowners across ID, OR, MT, CO, UT, WY, AZ, and NV.
Address:
3824 E Victory Rd, Nampa, ID 83687
Business Hours:
Monday to Friday, 7:00am to 5:00pm
Don’t wait weeks or months for traditional builds to move forward. Reach out to FREESTONE UNDERGROUND LLC now through our contact for modular underground concrete panels page and get expert guidance delivered fast. The sooner you connect with us, the faster we can help get your project in the ground.
