Trusted Septic & Excavation Services in Central Utah | 801-644-4277
Excavator working on a construction site

Septic & Excavation Services

From perc testing and septic system design to complete installation, underground utilities and site preparation, we provide dependable service from start to finish. Utah DEQ-Certified Onsite Wastewater Professional

30+ years of excavation experience · Licensed & Insured in Utah

30+ Years Experience
Licensed & Insured in Utah
Serving Sanpete, Sevier & Juab Counties
Honest Communication, Quality Work

Our Excavation & Site Services

Septic Systems

  • Perc Testing
  • Septic System Design
  • Complete Septic Installation
  • Septic Repairs & Maintenance

Underground Utilities

  • Water Line Installation
  • Sewer Line Installation
  • Underground Utility Installation
  • Electrical Conduit Trenching

Site Preparation

  • Building Pad Preparation
  • Foundations & Footings
  • Grading & Excavation
  • Land Clearing
  • Roads & Driveways

Retaining & Rock Walls

  • Custom Rock Walls
  • Retaining Walls
  • Landscape & Property Improvements
Excavator operator at a construction site

From Raw Land to Ready to Build.

With over 30 years of experience, SG Mayne Excavation can help take your property from raw land to ready to build.  From land clearing and site preparation to power, water, septic systems, foundations, and backfilling, we handle the groundwork from start to finish.    We take pride in quality workmanship, honest communication, and dependable service every step of the way.

One contractor.  From the ground up.

Our Work

See some of the excavation, septic, site preparation, and wall projects we've completed throughout Utah.

Excavation work
Site preparation with bulldozer
Concrete and site work
Concrete preparation work

What Our Customers Say

5.0· 12 Reviews

"Shad went above and beyond to get our septic system installed. He was professional, timely, and did excellent work. We couldn't be happier with the results."

— Marsha Smith

"Shad was willing to troubleshoot my septic issue and came up with a solution that saved me a lot of money. Very knowledgeable and easy to work with."

— Chuck Watts

"My husband and I recently purchased a home with a nearly failing septic system. Shad came out quickly, assessed the situation, and had it fixed in no time."

— Cassidy Robertson

Ready to get started? Let's talk about your project.

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