Colorado's Premier
Earthwork and Site
Utilities Contractor
Building the Foundations Of Colorado's Future
SWI Excavating is Colorado’s trusted partner in civil construction and underground utility work. Since 1997, we’ve been transforming job sites across the state with expert excavation, earthwork, and utility services that power the growth of communities—safely, efficiently, and with precision.
Whether you’re a general contractor, developer, estimator, or commercial project manager, SWI brings the expertise, agility, and technology to move your project forward. We’re proud to serve Colorado with large-scale capabilities, a local footprint, and a team that treats every job like it’s our own.
Excavation. Earthwork. Utilities
Done Right.
Our core services include:
- Excavation & Earthwork for commercial and multi-phase developments
- Sewer and Water Line Installation for new construction and infrastructure upgrades
- Demolition & Site Prep for a clean, ready-to-build foundation
- Emergency Utility Repairs to restore service fast when time is critical
Our team is equipped to handle projects of all sizes—with a special focus on complex commercial builds. We work closely with General Contractors and developers who need a lean, capable excavation crew that delivers consistent, high-quality results.
Small Team. Big Results.
Leading Technology.
While we may be one of the smaller companies in the room, we’re ahead of the curve—leveraging the same cutting-edge technology as the industry’s biggest players. From GPS-enabled equipment and 3D site modeling to drone footage for project planning and reporting, SWI combines hands-on expertise with high-level precision to give clients smarter, safer, more efficient results.
We believe in using data, systems, and innovation to deliver value at every stage—from preconstruction planning through final grading.
See Why Companies
Choose SWI Excavating
Over 25 Years Of Experience In site work and underground utilities
Experience Working With Many Tier 1 Building Companies
Fully Licensed And Compliant With Govt. Regulations
Let's Dig In
If you’re planning your next commercial project—or looking for a career with impact—SWI Excavating is here to help you build what’s next.
Serving Colorado since 1997
Call us today: 303-XCAVATE
Get in touch: info@swiexcavating.com
‘’SWI is a quality company to be in a trade partnership with. Alex and his crew are great to work with on a day to day basis. With over 20+ years in the industry, I can say they are worth every minute of knowing SWI.’’
Vincent L
February 28, 2023
‘’I highly recommend working with SWI Excavating. This business is ran very professionally and they take great pride in the work that they do.’’
Connor Dugan
February 28, 2023
‘’Bedrock, LLC and On-Demand Concrete, LLC have been doing business with SWI Excavating for a few years now and it has always been a pleasant experience through and through!’’
Bedrock Slingers
February 28, 2023
‘’I have nothing but the best to say about SWI! Quickness to respond, attention to detail, and quality of service are unmatched. You can also tell the owner carries a lot of pride in the business and it’s employees. Their ability shows in their work and their work is excellent! 10/10 recommend.’’
Sydney
February 28, 2022
‘SWI is a quality company to be in a trade partnership with. Alex and his crew are great to work with on a day to day basis. With over 20+ years in the industry, I can say they are worth every minute of knowing SWI.’’
Vincent L
February 28, 2023
‘Extremely professional. Was able to keep constant communication with us while keep a faster pace than expected’’