
Diamond Excavating, Inc.
Arvada, COAdams County
demolition, excavation, foundations, grading, paving prep, site prep

Foundations in Colorado
Footings, stem walls, slabs, piers and basement walls formed and poured to the plans and inspected before backfill.
Project guide
Foundation contractors build the part of the structure that carries everything above it into the ground: spread footings below frost depth, stem walls or basement walls, monolithic and slab-on-grade foundations, and pier or grade beam systems where soils are poor. The work follows the stamped plans and the geotechnical report, and it is inspected at fixed points, usually the open footing trench with rebar in place before the pour, then again before the slab and before backfill. Frost depth sets the footing bottom, from about twelve inches in the Gulf states to four feet or more across the northern tier. Waterproofing or dampproofing, a footing drain and free-draining backfill are what keep a basement dry, and they are cheapest to do right while the wall is still exposed.
GradeLine lists 116 foundations contractors that serve Colorado.Compare their work and equipment, then confirm availability and service area before requesting a quote.
Listed businesses are based in Arvada, Frisco, Colorado Springs, Woodland Park, Grand Junction, Castle Rock, though most crews travel well beyond their home city.
Slab-on-grade foundations typically run $6 to $14 per square foot of footprint, crawl spaces $8 to $20, and full basements $30 to $100 or more depending on depth, wall height and waterproofing. A foundation for a typical 2,000 square foot house therefore ranges from roughly $12,000 for a simple slab to $60,000 or more for a basement in a cold climate.
Ranges are national and approximate; regional labor rates, material prices and site conditions move them in both directions.
Slab-on-grade foundations typically run $6 to $14 per square foot of footprint, crawl spaces $8 to $20, and full basements $30 to $100 or more depending on depth, wall height and waterproofing. A foundation for a typical 2,000 square foot house therefore ranges from roughly $12,000 for a simple slab to $60,000 or more for a basement in a cold climate.
Send the stamped structural plans, the soil report, the survey with corner stakes and elevations, the truck access route, and the framing start date the foundation has to be ready for.
The main cost items are foundation type, footprint, wall height and the rebar and concrete volume the plans call for; excavation depth, soil bearing capacity, groundwater and any over-excavation or engineered fill; formwork, pumping, waterproofing, footing drains, anchor bolts and backfill. A site visit helps the crew see which ones apply.
Foundation work is always covered by the building permit, and the footing inspection has to pass before any concrete is placed. Many jurisdictions also require a foundation survey or as-built before framing to confirm setbacks, and engineered systems need the engineer's letter of observation.
Directory
116 contractors found

Arvada, COAdams County
demolition, excavation, foundations, grading, paving prep, site prep

Frisco, COSummit County
demolition, excavation, foundations, hauling trucking, retaining walls

Colorado Springs, COEl Paso County
demolition, driveways, excavation, foundations, grading, septic systems

Woodland Park, COEl Paso County
excavation, foundations, grading, pond water management, septic systems, site prep
47 years in business

Colorado Springs, CO
concrete flatwork, excavation, foundations, grading, paving prep, trenching underground


Castle Rock, CODouglas County
erosion control, excavation, foundations, grading, paving prep, pond water management

Greenwood Village, COArapahoe County
demolition, excavation, foundations, grading, site prep

demolition, erosion control, excavation, foundations, grading, land clearing

excavation, foundations, hauling trucking, septic systems

Lakewood, COJefferson County
demolition, excavation, foundations, hauling trucking, retaining walls, septic systems
8 years in business


Evergreen, COClear Creek County
demolition, driveways, excavation, foundations, grading, trenching underground

Perry Park, CO
erosion control, excavation, foundations, grading, land clearing, site prep
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demolition, driveways, excavation, foundations, hauling trucking, land clearing
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demolition, driveways, excavation, foundations, grading, hauling trucking
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