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Pfosi and Sons

Concrete, Excavation and PV Civil Works

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Pfosi and Sons is a family run business that has been involved in almost all phases of the home construction process since 2001. We thrive on the a-typical and challenging projects.
  • Trenching
    • Water Mitigation
    • Code compliant
    • Underground electric, gas and water
  • Mountain Work
  • General Excavation
  • Caisson Construction
  • Concrete Slabs, Driveways and Sidewalks
  • Foundation, Excavation and Construction
  • Landscape Material Distribution
  • Concrete Demolition


We love to dig dirt

  • Front range and mountain excavation
  • Knee wall foundation
  • Drain tile excavation and installation
  • Sump pit excavation and installation
  • Window well installation
  • Trenching
  • Water Midigation


Working with industry leaders

Over ten years experience on commercial sites.
  • OSHA compliant
  • Trenching
  • Flat work
  • Grading
  • Water Mitigation

Residential Driveways

Every detail detailed

Many houses built in the area were not built to last. Concrete was poured on unsettled clay at minimum thickness and without rebar. Cracked driveways are rampent in the area and Pfosi and Sons is here to fix that. Checkout a short time lapse video of our process.
Prices start at $4/sqft.


We'll jackhammer and dispose of the old cracked concrete.


We typically excavate 4" and fill with crushed concrete to fill the base.


We use rebar throughout to strengthen the driving surface and stop it from moving.

4" Slabs

We use a standard 4" slab.

Thickened Edges

We recommend a thickened edge all the way around the driveway for longevity.

3 Days

The average 16ft 2 car driveway can be completed in 2-3 days.


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About Us

With our experience in excavation and concrete, PV civil works was a natural transition for our company. We excel in excavation and concrete work and are able to offer our solar design company partners, as well as other customers, a turn-key solution to their civil works needs.

Contact Us

Contact Pfosi and Sons for a driveway estimate (303) 249-3102. We primarily work in Boulder County but also include the surrounding areas. To name a few: Boulder, Louisville, Lafayette, Erie, Niwot, Broomfield, Nederland, Lyons, Longmont, Thornton, Superior, Westminster and Arvada.
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