Heavy Civil • Sewer • Storm Drain • Water Infrastructure
Colorado Heavy Civil & Underground Utility Contractor
Licensed • Bonded • Insured • Drain Layer Certified • Serving Colorado Statewide
ISC Pros provides sewer line installation, storm drainage systems, water line installation, and underground utility excavation across Colorado. Our crews deliver engineered infrastructure solutions for commercial, municipal, and development projects.
Licensed • Bonded • Insured • ROW Contractor • Drain Layer Certified • Woman-Owned Business
ABOUT ISC PROS
ISC Pros is built on more than three decades of real-world construction experience. We specialize in sewer, storm drain, excavation, and underground infrastructure built to engineering standards and municipal code across Colorado.
Engineered Execution
All projects are performed in strict accordance with engineered drawings, municipal specifications, and regulatory standards.
Inspection & Compliance Driven
Every installation is built to grade, inspected to code, and documented for full regulatory compliance.
Infrastructure Built to Perform
We construct underground systems designed for structural integrity, long term durability, and operational reliability.
Certifications & Compliance
- Woman-Owned Certified Business
- Minority-Owned Certified Business
- Drain Layer (Sewer) Supervisor Certificate
- Licensed General Construction Contractor
- Fully Licensed, Insured & Bonded
- 33+ Years Residential & Commercial Experience
Colorado Statewide Heavy Civil & Underground Infrastructure Construction
From engineered sewer systems to large diameter storm drainage and underground water line installation, we deliver infrastructure built to specification, inspected to code, and designed for long term performance. Licensed, bonded, and insured across the State of Colorado.
Drain Layer Services
• Installation of sanitary sewer laterals and connections
• Drain layer services compliant with municipal requirements
• Trenching, pipe alignment, and inspection coordination
• Sewer tie-ins for residential and commercial development
• Compliance with city and county infrastructure standards
Septic System Installation
• Installation of residential and commercial septic systems
• Site preparation and excavation for septic tanks and leach fields
• Compliance with county health and environmental regulations
• Proper grading and drainage planning
• Long-term wastewater system performance and reliability
Site Development & Utility Excavation
- Precision excavation for commercial and municipal projects
- Professional trenching and site grading services
- Underground utility preparation and installation
- Use of modern heavy equipment for efficient work
- Safety-compliant procedures on every project
- Reliable site development with structural and regulatory integrity
Underground Water Line Construction
- Installation of underground water distribution systems
- Work performed according to approved engineering plans
- Proper pipe bedding and precise alignment
- Pressure testing to ensure system performance
- Complete inspection and documentation process
- Compliance with regulatory standards
- Designed for long-term reliability and service life
Storm Drain & Stormwater Construction
- Installation of storm drain networks for effective water management
- Construction of detention systems and drainage structures
- Work completed according to civil engineering plans
- Compliance with hydrological design criteria
- Installation of large-diameter storm systems
- Designed to manage high flow capacity
- Protects site stability and surrounding infrastructure
- Maintains environmental and regulatory compliance
Heavy Civil Sewer Infrastructure
- Construction of underground sewer systems for municipal and commercial projects
- Replacement and rehabilitation of existing sewer infrastructure
- Engineered trench protection for safe excavation
- Grade-controlled pipe installation for accurate alignment
- Structural backfilling to ensure system stability
- Inspection coordination with local authorities
- Full compliance with state and municipal regulations
- Built for long-term structural integrity and operational longevity
Heavy Civil Sewer Infrastructure
Storm Drain & Stormwater Construction
Drain Layer Services
Septic System Installation
Who We Work With
- Municipalities
- Commercial Developers
- General Contractors
- Infrastructure Engineers
- Utility Districts
Our projects
Sewer Line Installation
Water Service Line Repair / Replacement
Underground Utility Layout & Pipe Routing
Sewer Line Tie-In & Connection Repair
Sewer Line Replacement with Protective Barrier
Deep Utility Trench Excavation
Main Line Coupling & Pipe Reinforcement
Underground Valve & Utility Access Repair
Vertical Bore / Deep Sewer Line Installation
Capabilities
- Underground Utility Construction
- Sewer & Storm Drain Systems
- Water Main & Service Line Installation
- Large Diameter Pipeline Installation
- Utility Excavation & Trenching
- Municipal Infrastructure Projects
Trusted by Colorado Developers, Contractors & Infrastructure Clients
Service Areas
Iron Sunflower Construction provides underground utility and infrastructure services across Colorado including Denver, Aurora, Lakewood, Littleton, Centennial, Castle Rock, and Colorado Springs.