Services
From raw land to ready-to-build, Winkelman Site Work, LLC is your trusted one-call contractor for complete excavation, septic, and site development services. We bring experience, precision, and integrity to every project—delivering start-to-finish solutions that ensure your property is built right from the ground up.

Consultation & Planning
Every successful project starts with a solid plan. At Winkelman Site Work, we provide complementary consultation and planning services to help all of our current and future customers understand site conditions, utilities, drainage, and permitting requirements. Our relationships with cities, counties, and local experts allow us to have a hands-on approach that ensures your project is properly scoped, cost-effective, and designed for long-term performance—saving you time and money before construction even begins.

Lot Development
Transforming raw land into a build-ready site is what we do best. We handle every aspect of residential lot development, from land clearing and grading to infrastructure and utility placement. Our experienced team coordinates each step to ensure your property is fully prepared for construction, delivering clean, level, and stable ground ready for your home’s foundation.

Septic Systems
We specialize in septic system installation, replacement, and repair for both new homes and existing properties. We are licensed installers and hold proprietary certifications for Oscar, NuWater, and Glendon systems. We work with our trusted designers to ensure your system works as efficiently as possible with the requirements of your property. We manage everything—from soil evaluations and permits to tank installation and drainfield construction—so you can count on a septic solution that works efficiently and safely for years to come.

Sewer Systems
Winkelman Site Work provides sewer system installation and city main tie-ins for residential and small development projects. Whether extending municipal sewer lines, upgrading outdated systems, Septic to sewer conversions, or a simple clean-out addition or root repair- we ensure precise connections, proper slopes, and full compliance with local regulations. Our experience with multi-property systems and complex sites allows us to deliver dependable results and peace of mind.

Water Service
Reliable water service starts underground. We install private and public water service lines, pressure systems, and mainline connections with accuracy and care. Our crew uses durable materials and proven techniques to ensure consistent, leak-free water delivery to your home or development. From initial trenching to final backfill, we take pride in doing the job right the first time.

Foundation Excavations
The foundation sets the tone for your entire build. We perform precise foundation excavation for homes, garages, additions, and accessory buildings—ensuring accurate grades, stable soils, and proper drainage. Our modern equipment and skilled operators allow us to achieve tight tolerances and clean work zones that help builders stay on schedule and within budget.

Stormwater Management
Effective stormwater management protects your investment and the surrounding environment. We design and install drainage systems, infiltration galleries, swales, and other features that control runoff and prevent erosion. By integrating smart water management practices into every project, we can help homeowners meet local regulations and maintain long-term site stability.

Driveway Construction & Precision Grading
A well-built driveway or pad sets the stage for your property’s accessibility and appearance. We specialize in driveway construction & repair, concrete and asphalt prep, and precision grading for homes, outbuildings, parking areas, horse arenas, etc. You name it- we can make it flat. We maintain a grade tolerance of of 0.05' or less- using laser-guided equipment, to achieve smooth, even surfaces with proper drainage to ensure longevity and visual appeal because first impressions start at the driveway.

Retaining Walls
Strong, well-built retaining walls do more than hold back soil—they define outdoor spaces and protect your property from erosion. We construct functional and visually appealing walls using rock, block, or engineered systems tailored to your site. Every wall we build is designed for long-term durability, proper drainage, and seamless integration with your landscape.
