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Excavation in Park County, Colorado 

Dirt Work, Foundation Prep, Septic System Installs and More

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Who we Are

Park County Excavation is a locally owned excavation company based in Hartsel, Colorado. With over 20 years of experience, we specialize in septic installs, driveway construction, foundation prep, and full-site excavation. Built on trust, hard work, and local know-how, we tackle tough mountain terrain with precision and pride. No fluff, just results.

Location

Ranch of the Rockies, Hartsel, Park County, CO

Email Address

[email protected]

Make A Call

303:903:5644

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Park County Excavation Company

Colorado Park County Excavation, Dirt Work, and Septic Installation

With over 20 years of experience, Wiswell Inc delivers reliable dirt work, excavation, septic, and foundation prep services across the Ranch of the Rockies, Hartsel and Park County.

Let's Dig In- Give Us a Call
About Wiswell Inc.

Park County Excavation, Built on Trust and Hard Work

For more than two decades, Wiswell Inc has proudly served the heart of Colorado’s high country. Based in Hartsel, we specialize in excavation, site prep, and septic system installation. We help  landowners across the Ranch of the Rockies build smarter from the ground up. We’re a small, experienced team that values honest work, clear communication, and doing the job right the first time. We don’t cut corners, just dirt.

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Best Services

Expert Solutions for
Mountain Living

Dirt Work & Grading

From rough terrain to sloped lots, we move dirt with precision to prepare your property for whatever comes next.

Excavation & Site Clearing

Whether you're breaking ground for a cabin or clearing land for utilities, we’ve got the tools and expertise to get it done safely and efficiently.

Foundation Prep & Trenching

Start strong with professional grading, compaction, and trenching services that support long-term stability.

Driveway Installation

Design and build durable mountain driveways that stand up to the elements—and look good doing it.

Septic System Installation

We install complete septic systems that meet county code and property needs, from soil testing to final inspection.

Drainage Solutions

Proper water flow is essential. We install culverts, French drains and other drainage systems that help divert water away from your foundation, or property.

Wiswell Inc, a Park County Excavation Company, Proudly Serving Ranch of the Rockies, Hartsel & Surrounding Areas

We work where we live. Wiswell Inc knows the challenges of building in high-altitude terrain because we’ve done it here for years. From private mountain parcels to off-grid builds, we provide practical, locally rooted solutions that last.

We believe in doing business the right way—old-school. That means real conversations, real answers, and a handshake you can trust. Don’t waste time filling out endless forms.

Give us a call to talk through your project

Or if you must request a quote here —we’ll still probably call you.

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Call Us Now
At Wiswell Inc, we don’t rely on slick sales pitches. We’ve spent over 20 years earning trust the old-fashioned way, through honest work, clear communication, and a solid handshake. Whether you’re installing a septic system, building a driveway, or breaking ground for a new mountain home, you can count on us to get it done right.

Built on Trust. Backed
by Experience.

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1+
Project Complete
1+
Years of Experience in Park County
1%
Locally Owned and Operated
1%
Repeat & Referral Clients
Quality Services

Jason did an incredible job on our driveway. We couldn’t be happier with the results! He was fast, professional, and knew exactly how to handle the challenges of our mountain property. The work was solid, clean, and done right the first time. We’re already planning to use Wiswell Inc for all of our upcoming excavation needs, including septic and foundation prep. It’s such a relief to have found someone reliable, honest, and experienced in the Ranch of the Rockies. Highly recommend!

Stephanie H.
Ranch of the Rockies Property Owner
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Talk About Your Next Dream Projects

Park County Excavation

20+ Years of Experience in Park County