What we self-perform
Fourteen scopes. Eight capabilities. One team.
01. Services
Site Development
Complete sitework and full project and budget management, self-performed from first cut to final grade. We handle planning, budgeting, crew assembly, risk mitigation, inspection coordination, and compliance reporting, so the details are covered before the first machine mobilizes. Value engineering up front saves money before the project even starts.
Site preparation · Project & budget management · Grading to plan
02. Services
Demolition & Blasting
Structural demolition and controlled rock blasting on complex, active sites, from highways to power plants. Certified crews handle explosives management, permitting, third-party pre- and post-blast inspections, and GPS-guided drilling that takes the guesswork out of every shot. Salvaging, segregating, and recycling keep materials out of the landfill.
Structural demolition · Controlled blasting · Rock removal
03. Services
Utilities
Underground utility work and trenchless installation, from open trench to directional drilling. Water, sewer, storm, telecom, power, and gas, plus pump stations, cast-in-place structures, and HDPE pipe installed by certified fusion crews. Subsurface utility mapping finds conflicts before excavation, keeping projects on budget and on time.
Underground utilities · Tunneling · Boring · Augering · Directional drilling
04. Services
Asphalt & Paving
Site paving and surfacing built to spec and to last, from durable driving surfaces to runways and playing areas. Installation, resurfacing, patching, sealcoating, and line striping, with grading and paving handled by one team for a seamless transition to the finished product.
Site paving · Surfacing · Grading base
05. Services
Crushing & Aggregate
On-site crushing and material processing that keeps big jobs moving. We turn existing asphalt, concrete, and rock into quality aggregate right on your site, cutting disposal fees, truck traffic, and hauling costs while keeping waste out of the landfill.
On-site crushing · Aggregate production · Material processing
06. Services
Earthwork
Mass grading and excavation at scale, including surface mining and trenching. We run everything from the largest equipment Caterpillar makes to the smallest skid loader, and we’ve moved dirt in nearly every geological formation: clay, silt, rock, ash, and granite. Rough and finish grading, nationwide.
Mass grading · Excavation · Surface mining · Trenching
07. Services
Stabilization
Soil stabilization and ground improvement for demanding subgrades. Lime, cement, and ash stabilization, mine grouting, and roller-compacted concrete, delivered by crews with the chemical expertise to treat soil, manage water, and make difficult ground buildable.
Soil stabilization · Ground improvement · Subgrade prep
08. Services
Environmental
Certified cleanup that returns difficult sites to buildable condition. Kolb has self-performed superfund remediation, landfill closures, and land reclamation for federal, state, and private clients, including the Department of Energy’s Weldon Spring site.
Superfund · Brownfield · Hazmat cleanup · Fully certified
Why Kolb
The Kolb advantage
Self-perform everything
One accountable team across every major scope — fewer subs, tighter schedules, better control.
Fast, reliable pay
Industry-leading days-payable. Vendors and partners choose to work with us because we pay quickly.
Safety
first
A safety culture built for the scale and complexity of mission-critical sites.
Certified & equipped
Environmental certifications, Helix Pier foundations, and a modern, tech-driven fleet.