ASPHALT & CONCRETE PREP WORK | BUILDING LASTING FOUNDATIONS
The success and longevity of any paved surface, whether it's an asphalt parking lot or a concrete building slab, hinges entirely on the quality of the sub-grade preparation. At Keystone Contracting, our expertise in earthwork ensures that every project starts with a perfectly stable, properly drained, and expertly compacted base.
We manage all aspects of base preparation for both commercial and residential projects throughout the Gallatin Valley. This includes meticulous excavation, material import/export, laser grading, and precise compaction to prevent future settling, cracking, and premature failure of the finished surface. When you choose Keystone, you guarantee a durable foundation that will stand the test of time.
Detailed Asphalt and Concrete Prep Capabilities
We provide comprehensive groundwork services tailored for paving contractors, developers, and homeowners.
Sub-Grade Excavation and Removal: Stripping and proper removal of unsuitable native soils (soft, organic, or wet material) to reach a stable sub-grade elevation.
Importation of Base Materials: Sourcing, trucking, and importing engineered base materials, such as crushed aggregate and gravel, to create the necessary structural depth.
Moisture Control and Stabilization: Managing soil moisture content and using compaction techniques to achieve the required density and prevent expansion or settlement beneath the slab or pavement.
Fine Grading and Laser Leveling: Precision grading of the base material to achieve exact pitch and slope, ensuring the concrete or asphalt can be poured/laid to the perfect depth for optimal water drainage.
Sub-Base Compaction: Utilizing heavy-duty vibratory rollers and plate compactors to consolidate the base material to its maximum density, providing crucial load-bearing strength.
Ponding and Drainage Correction: Creating strategic slopes and preparing areas for catch basins or culverts to manage stormwater runoff away from the paved surface, protecting the integrity of the finished product.
All Our Services overview:
Site Preparation & Earthwork
From initial land clearing to final grading and leveling, we are the experts in preparing your property for construction. We handle everything from foundation excavation and site prep for concrete and asphalt to road building, ensuring your project begins on a solid foundation.
Utilities & Septic
We install and maintain the essential infrastructure that makes a property functional. Our services include the precise installation of septic systems, sewer lines, and water lines, guaranteeing your home or business has reliable and safe utility access..
Material Hauling & Delivery
Getting the right materials to the right place is crucial for any job. Our professional fleet is ready to haul and deliver a wide range of materials, including gravel, dirt, and rock, ensuring your project stays on schedule and on budget.
Hardscaping & Seasonal Services
We provide solutions that enhance both the beauty and durability of your property. From building stunning rock retaining walls to providing reliable snow and ice removal in the winter, we offer year-round services that protect and elevate your investment.