Underground Utility Services in Colorado
Reliable underground utility services starts with precision and experience. Thorp Excavation is a Colorado utility and excavation company specializing in trenching, installation, and repair of underground utilities. From water and sewer to gas and electrical lines, our underground utility contractors deliver dependable service that keeps every project connected and built to last.
Utility Solutions for Colorado Builders
Overview
Natural Gas & Electric
Certified LUSI (Licensed Utility Service Installer) specializing in natural gas and electric trenching, installation, and connections that meet local safety and utility standards.
Fire Lines
Licensed fire line contractor providing compliant installation of new residential and commercial fire lines and fire hydrants, ensuring dependable flow and long-term reliability.
Septic Tanks & Leach Fields
Expert excavation and installation of new septic tanks and leach fields, plus repair and replacement services for rural and residential systems across Colorado.
Sewer & Water
Professional sewer and water trenching, installation, and repair services with precise tie-ins to municipal systems and private service lines.
Low Voltage Conduit
Experienced utility contractor for trenching and installation of low voltage conduit, offering precise routing for communication and control systems.
Stormwater management
Grading, trenching, and drainage solutions designed to manage runoff and prevent erosion, including construction of detention ponds, riprap installation, and other long-term site stabilization measures.
Underground Utility Services
Utility Trenching
New Sewer & Water Installs
Low Voltage Conduit
LUSI (Licensed Utility Services Install) Services
Emergency Sewer & Water Repair
Septic Tanks & Leach Fields
Natural Gas Lines
Licensed Fire Line Installation
Cleanouts
Electric Lines
Fusions
Curb Stop Box

Why Builders Choose Us
Builders and general contractors count on Thorp Excavation for licensed excavation and underground utility services in Colorado that keep projects moving safely and on schedule. Our team delivers precise, compliant site work for residential, commercial and multi-family builds across the Front Range.
- CSU Licensed Utility Service Installer (LUSI) Natural Gas
- Licensed Colorado Fire Line Contractor
- Fast mobilization and dependable scheduling
- Code-compliant utility installations and repairs
- Comprehensive Safety Plans
- COIs and compliance documentation ready on request
Projects Delivered

The Commons at Victory Ridge
New sewer and water installation for Colorado Springs new construction at The Commons at Victory Ridge multifamily community.

Heart & Vascular Partners
Certified LUSI (Licensed Utility Service Install) natural gas line services for Heart & Vascular Partners new construction shell.

The Vistas at West Mesa
Licensed fire line, new sewer and water trenching and installation for Colorado Springs west side townhome community.
Ready to Start Your Next Project?
Trusted utility excavation services for Colorado’s toughest projects — delivered safely, on time, and to spec.