Grounded
in Trust.
Capabilities That Move Projects Forward
We don’t subcontract the core of what we do. From dirt work to underground utilities, every crew on-site is ours—experienced, equipped, and ready to execute.
Site Preparation
Land clearing, demolition, grading, and contouring to get your site ready.
Utility Installation
Grounded in Trust, Built to Perform
We’re a second-generation, family-owned excavation company serving Iowa with hands-on leadership and a reputation built on doing the job right. Since taking over from his father in 2020, Nick Koelker has grown the company through direct relationships with developers, general contractors, and landowners who value responsiveness, accountability, and results.
At Koelker Excavating, we don’t just move dirt — we move projects forward. Our team shows up prepared, works with purpose, and keeps the jobsite clean, safe, and ahead of schedule. The result? Repeat business, long-term partnerships, and a reputation we take personally.
Built For Builders
From dirt work to utilities, we support the people shaping Iowa’s growth. Whether you’re breaking ground on your first commercial site or prepping another high-volume retail location, Koelker Excavating is the team behind the work.
Why Work for Koelker Excavating
We take care of the people who keep our work moving. At Koelker Excavating, every crew member matters — and we back that up with real benefits, job stability, and a culture that values doing things the right way.
Healthcare
We offer medical coverage options to help keep our crew and their families healthy, on and off the job.
Paid Time Off
We believe in hard work — and time to recharge. PTO is part of the package.
Reliable Hours
Our workload is consistent, with full-time schedules and year-round projects.
Training & Advancement
We promote from within. Learn new equipment, build new skills, and grow your role over time.