Expert Underground Utilities Contractor for Oregon & Washington Projects
Four generations of experience delivering reliable utility solutions for commercial and residential developments.
- In-House Fleet of 150+ Units for On-Time Project Completion
- Value Engineering to Minimize Costs & Prevent Delays
- Certified & Licensed for Your Peace of Mind (OR CCB 217133 | WA LEGAC6I856KA)
The Partner of Choice for Leading Developers
in the Pacific Northwest
80%+
Repeat Business Rate
4
Generations in the Industry
150+
Pieces of Equipment in Our Fleet
SDVOSB
Certified Service-Disabled Veteran-Owned Small Business
Comprehensive Underground Utility Services for a
Solid Foundation
A successful development project begins long before the first wall is framed. It starts below the surface with infrastructure that must perform flawlessly for decades. Legacy 6 Inc. provides comprehensive underground utility services, ensuring your residential or commercial site across Oregon, Washington, and the greater Pacific Northwest has the critical systems it needs for long-term success. As a premier underground utilities contractor, we specialize in the expert installation, maintenance, and repair of water, sewer, and storm drain systems. Our extensive utility excavation in the Pacific Northwest is built on a foundation of safety, precision, and proactive communication, protecting your project timeline and budget from the ground up. We understand that properly installed utilities are the unseen backbone of any thriving community or commercial center.
Our Core Utility Installation and Repair Services
Sewer Line Installation & Repair
We manage all aspects of sanitary and storm sewer systems for subdivisions, apartment complexes, and commercial properties. Our services include new sewer line installation, main line connections, manhole installation, and repairs to existing infrastructure. Our experienced crews work closely with local municipalities throughout Oregon and Washington to ensure every system is compliant with city and county regulations and built for maximum durability. We handle everything from deep sewer installations to complex tie-ins, ensuring your project’s wastewater and runoff are managed effectively and reliably.
Water Main Installation & Repair Services
Clean, reliable water access is non-negotiable for any development. We provide complete water main repair services and new installations, from tapping the city main to installing individual service lines, fire hydrants, and backflow prevention devices. Our team works meticulously to prevent leaks, guarantee system integrity through rigorous pressure testing, and ensure consistent water pressure for the entire development. Whether it’s a large-diameter ductile iron main for a new subdivision or a complex fire loop for a commercial site, our precision is unmatched.
Storm Drain System Installation
Proper water management is critical in the Pacific Northwest. Our storm drain system installation services are engineered to effectively manage runoff, prevent erosion and flooding, and protect property value. We have deep experience with the unique environmental challenges of the region and build systems that last. We install catch basins, culverts, manholes, and underground retention/detention systems tailored to your site’s specific topography and civil engineering plans. Our goal is to create a sustainable drainage solution that integrates seamlessly with your overall site design.
Utility Excavation and Trenching
Precision excavation is the backbone of all utility work. Leveraging our modern, in-house fleet of over 150 machines and our highly experienced operators, we perform all necessary trenching and excavation with an uncompromising focus on safety and accuracy. Our process minimizes site disruption, protects existing infrastructure through careful utility locates, and prepares a stable, secure foundation for all underground pipe and conduit. We ensure correct grade, proper bedding, and safe trenching practices on every job.
The Legacy 6 Advantage:
More Than Just a Contractor
Developers choose us—and return for future projects with an 80%+ repeat business rate—because we approach every job as a true partner. Our commitment goes beyond the bid; we invest our experience, energy, and family legacy into making your project a success from the ground up.
Value Engineering at No Extra Cost
With four generations of experience in this region, we analyze project plans from an owner’s perspective. We ask, “What would we do if this was our project?” This allows us to identify potential constructability issues, foresee challenges, and suggest innovative solutions that save significant time and reduce costly change orders before they ever happen. This is not a service we charge for; it’s simply how we do business.
Proactive Communication & Scheduling
We believe in over-communication as a tool for project success. Our dedicated project managers and superintendents keep you informed at every stage, ensuring our work aligns perfectly with your overall project schedule. Our in-house trucking and dispatch team, managing a diverse fleet of dump trucks and lowboys, ensures materials and equipment are where they need to be, when they need to be there, eliminating common third-party delays.
Uncompromising Commitment to Safety
A safe site is an efficient and productive site. Our comprehensive safety program exceeds all OSHA and L&I requirements, protecting our crew, your team, and the public. This unwavering focus on a “Zero Accident Mindset” minimizes risk and prevents costly delays associated with incidents, keeping your project on track and ensuring peace of mind for everyone involved.
In-House Resources for Total Control
With a fleet of over 150 units and a dedicated team of in-house project managers, operators, laborers, and mechanics, we control the quality and timeline of your project. We don’t rely on third-party rental or subcontractor availability, which allows us to be more agile and responsive. This self-sufficiency means we can meet our commitments and adapt to project changes without compromising your schedule.
Our Streamlined Utility Project Process
Consultation & Bid Review
We start by thoroughly reviewing your civil plans, geotechnical reports, and project requirements. Our experienced estimating team provides a detailed, transparent bid that covers the full scope of your underground utility needs, identifying opportunities for value engineering from day one.
Pre-Construction & Planning
Upon award, our project management team immediately coordinates with your engineers and site managers. We establish clear timelines, rigorous safety protocols, and a precise plan for execution, which includes scheduling and managing all necessary public and private utility locates to prevent conflicts.
Expert Installation & Excavation
Our experienced crews and operators execute the plan with precision and professionalism. We perform all utility excavation and installation work according to the highest industry and safety standards, ensuring that every pipe is laid to the correct grade and every connection is secure.
Testing, Backfill & Final Inspection
Quality assurance is paramount. We conduct rigorous pressure testing on all water and sewer lines and coordinate directly with municipal inspectors to ensure all systems are approved without delay. Once passed, we complete the backfill and compaction, leaving your site stable and ready for the next phase of construction.
What Our Partners Say
Let's Build Your Project's Foundation Together
Ready to partner with an underground utilities contractor that brings generations of experience, steadfast reliability, and a team-first approach to your site?
Contact Legacy 6 Inc. today to discuss your development project in Oregon, Washington, or anywhere in the Pacific Northwest and receive a comprehensive bid.
Phone: 360.690.5339
Email: LT@legacy6inc.com
Frequently Asked Questions About
Underground Utility Services
What areas do you serve for underground utility work?
Legacy 6 Inc. serves the entire Pacific Northwest, including major metro areas like Portland, Beaverton, Hillsboro, Gresham, and Lake Oswego in Oregon, and Vancouver, Camas, Longview, and Kelso in Washington. Our large, in-house fleet allows us to efficiently mobilize and manage projects across the region.
Can you handle both residential subdivision and large commercial utility projects?
Yes. Our team and equipment are scaled to handle projects of all sizes, from 10-lot residential subdivisions to 500,000 sq. ft. commercial developments. We have dedicated project managers and superintendents with specific expertise in both sectors, ensuring your project gets the specialized attention it requires.
How do you ensure your utility installations comply with local city codes?
Our project managers and superintendents have extensive experience working with municipalities across Oregon and Washington. We proactively manage the entire inspection process, from pre-construction meetings to final sign-off, and guarantee that all water, sewer, and storm drain system installations meet or exceed all local and state requirements.
What makes your 'value engineering' different?
Our value engineering is a proactive part of our partnership, not a separate, paid service. We leverage our four generations of hands-on experience in the Pacific Northwest to review your plans and identify potential constructability issues or opportunities for cost savings before work begins. This foresight helps prevent delays and costly change orders down the line.
Do you perform emergency water main repair services?
While our primary focus is on planned utility installation for new residential and commercial development projects, we do have the capability to offer water main repair services for existing infrastructure. Please contact our office to discuss the specifics and urgency of your needs, and we can determine how we can best assist you.
