Excavation Services by Cowan and Sons LLC
Cowan and Sons LLC is a local, family owned business proudly serving Chaffee and Lake Counties.
Cowan and Sons LLC is a local, family owned business proudly serving Chaffee and Lake Counties.
At Cowan and Sons LLC, our mission is to provide honest, high-quality excavation and hauling services done right. We prioritize safety, attention to detail, and respect for our customers, their property, and our community. We also offer reliable, certified septic installation and snow plowing services as part of our commitment to year-round support.

I’ve lived in Buena Vista most of my life and take pride in the reputation I’ve built here. This isn’t just where I work — it’s where I’m raising my family, where my kids go to school, and where my roots run deep. I believe in showing up, doing honest work, treating people fairly, and delivering real value without cutting corners.
Cowan & Sons was built for the long haul. My sons are already interested in the business, and my goal is to build something they can stand behind — a company known for solid work, strong relationships, and trust that carries on for generations.
Efficient, reliable excavation and site work for residential and commercial projects of any size.
Licensed septic installation and repair, completed in coordination with engineers and homeowners to meet site-specific requirements.
Final grading and dirt prep for driveways and concrete work.











Submit this form and we’ll be in touch shortly with a price estimate from Cowan and Sons LLC. Providing detailed project information helps our team, including our excavation and hauling experts, deliver the most accurate quote for your needs, whether it's for a septic installer or snow plowing services.
We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.