BASEMENT EXCAVATION
Expert basement excavation for new construction and additions. We handle the complex work of digging deep while managing soil, water, and access challenges.
ADD VALUABLE LIVING SPACE BELOW GRADE
A basement dramatically increases your home's usable square footage at a fraction of the cost per square foot of above-grade construction. Whether you're building new or adding to an existing structure, basement excavation is an investment that pays dividends.
Our team specializes in the unique challenges of basement excavation—managing soil conditions, controlling water, maintaining site stability, and ensuring proper access for concrete and construction crews.
- ✓ Adds 30-50% more living space
- ✓ Lower cost per square foot than above-grade
- ✓ Natural climate control (cooler summers, warmer winters)
- ✓ Increases property value significantly
BASEMENT TYPES
We excavate all basement configurations
Full Basement
Complete below-grade space spanning the entire footprint of your home.
- Maximum usable space
- 8-10 foot ceiling heights
- Full mechanical room
- Future finishing potential
Walkout Basement
Takes advantage of sloped lots with at-grade access on one or more sides.
- Natural light & access
- Perfect for sloped lots
- Patio/deck potential
- Separate entrance option
Daylight Basement
Partially below grade with windows at or above ground level on one side.
- Increased natural light
- Egress window ready
- Moderate excavation depth
- Bedroom-ready space
PLANNING A BASEMENT PROJECT?
Let's discuss your project and provide a detailed excavation estimate.
Get A QuoteTHE EXCAVATION PROCESS
How we approach basement excavation projects
Site Evaluation
We assess soil conditions, water table levels, access routes, and any potential challenges. This informs our approach and equipment selection.
Layout & Marking
Working from your plans and survey stakes, we mark the exact excavation boundaries and establish grade benchmarks.
Topsoil Removal
We strip and stockpile topsoil separately for later use in final grading and landscaping.
Main Excavation
Systematic removal of soil to the required depth, maintaining proper slope on walls and managing any water encountered.
Fine Grading
Precision grading of the basement floor area to exact specifications, ensuring proper drainage to footer drains.
Access Preparation
We create and maintain access ramps for concrete trucks, foundation crews, and material delivery throughout construction.
DEEP EXCAVATION EXPERTS
We have the equipment and experience to handle excavations up to 20 feet deep.
Get A QuoteKEY CONSIDERATIONS
What we evaluate for every basement excavation
Water Management
High water tables or springs require dewatering during excavation and proper drainage planning for the finished basement.
Adjacent Structures
Excavating near existing buildings requires careful planning to avoid undermining foundations or causing settling.
Soil Conditions
Rock, clay, sand, and mixed soils all require different approaches and equipment for efficient excavation.
Site Access
Equipment access and soil hauling routes must be planned, especially for confined urban or suburban lots.
FREQUENTLY ASKED
Standard basement excavations are 9-10 feet below grade to allow for 8-foot ceilings plus the concrete floor and footings. We can excavate deeper for taller ceilings or specific requirements.
Topsoil is stockpiled on-site for final grading. Subsoil can be used for backfill, spread elsewhere on your property, or hauled away. We'll discuss options during planning.
In some cases, yes. This is complex work requiring house lifting or underpinning. We can excavate for these projects when coordinated with a qualified contractor.
Most residential basements are excavated in 2-4 days depending on size, soil conditions, and access. We work efficiently to keep your project on schedule.
READY TO DIG DEEP?
Contact us for a free consultation on your basement excavation project.
Get A Quote
Osborn Excavating & Construction proudly serves Lebanon, Missouri with reliable excavation and construction services, delivering quality workmanship, honest service, and results you can trust from the ground up.