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Foundation and Concrete - Excavation Contractor in Windsor and Greeley Colorado

FOUNDATION - CONCRETE

Foundation & Concrete Services in Greeley, CO

AB Dirt Works provides reliable excavation and site‑prep services for foundations, basements, additions, and new construction across Northern Colorado. Our team handles everything from precise digs and concrete prep to underground plumbing, compaction, and clean backfill that sets your project up for long‑term stability. With decades of experience in Greeley, Windsor, Fort Collins, and surrounding areas, we deliver accurate cuts, proper grading, and job‑ready sites that keep your build moving forward without delays. Whether you’re starting a new home, expanding your footprint, or preparing a basement foundation, we bring the equipment, skill, and local soil expertise to get it done right.

Foundation and Concrete - Excavation Contractor in Windsor and Greeley Colorado
Commercial Excavation foundation concrete in Greeley, CO

FOUNDATION/BASEMENT &
CONCRETE SERVICES

Foundation Excavation

Foundation excavation requires precise digging, clean edges, and accurate elevations. We prepare the site so concrete crews can form and pour a stable, long‑lasting foundation without delays or corrections.

Basement Excavation

Basement excavation involves digging deeper, managing soil conditions, and creating clean, safe walls. We ensure proper depth, drainage considerations, and a smooth layout for your basement build.

Additional Dwelling Units (ADU) / Addition Excavation

We prepare the ground for home or building additions by digging to the correct depth, matching existing elevations, and ensuring the new structure ties in safely and correctly.

New‑Construction Excavation

For new builds, we handle full site excavation, including foundation digs, grading, and utility prep. Our work sets the stage for a smooth construction process from day one.

Concrete Services: Prep & Full Installation

We provide complete concrete services from start to finish, including excavation, grading, and full concrete installation for slabs, footings, driveways, patios, and flatwork. Proper elevations and clean prep ensure strong, durable concrete that drains correctly and stands the test of time.

Over‑Excavation (if needed for poor soils)

When soil conditions are weak or unstable, we remove unsuitable material and replace it with proper fill. Over‑excavation ensures a solid, reliable base for your foundation or structure.

Footing Excavation

We dig precise trenches for concrete footings, ensuring correct width, depth, and alignment. Clean, accurate footing excavation supports a strong and stable structure.

 

 

AB Dirt Works Full Storm water drainage in Greeley, CO
Water Excavation Pipeline Plumbing in Greeley, CO
RETAINING WALLS EXCAVATION IN KEENESBURG, COLORADO

Removal of Old Foundations or Debris

We remove old concrete, foundations, and construction debris to clear the site for new work. Clean removal ensures a safe, build‑ready surface.

Access Creation for Tight or Limited‑Space Digs

We create safe, workable access points for excavation in tight or restricted areas. Our equipment and techniques allow us to dig where others can’t.

Underground Plumbing Installation

We excavate and prepare trenches for underground plumbing lines, ensuring proper depth, slope, and layout so your plumbing system functions reliably and meets code.

Utility Trenching

We dig clean, safe trenches for water, sewer, electrical, and other utility lines. Our trenching is accurate, code‑compliant, and designed to protect your utilities long‑term.

Crawl Space Excavation

We create clean, properly graded crawl spaces with the right depth and access. Our work ensures structural stability and meets building requirements.

Compaction 

Backfill & Final Grading

​After construction or utility work, we backfill with proper materials and compact the soil for stability. Final grading shapes the land for drainage and prepares the site for the next phase.

COUNTY PERMIT HANDLING

If needed, we can manage all required county permits, including applications, inspections, and approvals. This keeps your project compliant and eliminates paperwork stress.

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WHY CHOOSE AB DIRT WORKS

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AB Dirt Works Full Storm water drainage in Greeley, CO

Expertise

Experienced with Colorado soil, clay, frost lines, and real ground conditions since 2005.

Speed

Proven across hundreds of successful projects — we deliver on strict timelines.

We don’t waste time; we show up prepared and get straight to work.

Stress‑free process

If needed, we handle permits, paperwork, and coordination.

Inspection confidence

Our work passes inspection because it’s done right, and we stay until it does. With years in the field, we’ve built strong relationships with local inspectors. They know us, they know our work, and they know we do things the right way.

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BUSINESS HOURS

Mon–Fri: 8 AM – 5 PM

Sat–Sun: Closed

(or “By appointment only”)

Field hours vary depending on the job. Office hours listed above.

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