Heavy Civil Construction Contractor
Ryatt Construction is a full-service heavy civil and heavy construction contractor serving Seattle, WA and Phoenix, AZ. From mass earthwork and underground utilities to demolition and environmental remediation, we deliver complete site development under one contract.
Heavy Civil & Heavy Construction Capabilities
With 16+ years, 931+ permitted projects, and a BuildZoom score in the top 2% of Washington contractors, Ryatt Construction brings proven heavy civil expertise to every project. Our in-house capabilities span the full site development lifecycle.
- Mass earthwork and site grading
- Underground utility infrastructure (water, sewer, storm)
- Mainline extensions and municipal connections
- Demolition of structures and foundations
- Road and parking lot subgrade preparation
- Stormwater management and drainage systems
- Contaminated soil remediation
- Shoring and excavation support
- Concrete infrastructure restoration
- Traffic control and right-of-way work
- Erosion control and environmental compliance
- Multi-phase site development coordination
Sectors We Serve
Residential Development
Single-family, townhome, and multi-family site work from demo through final grading.
Commercial & Retail
Pad preparation, utility installation, and site infrastructure for commercial projects.
Municipal & Public Works
Mainline extensions, right-of-way restoration, and utility infrastructure for municipalities.
Industrial
Heavy earthwork, environmental remediation, and utility infrastructure for industrial sites.
Heavy Civil Construction FAQ
What is heavy civil construction?
Heavy civil construction encompasses large-scale earthwork, underground utilities, demolition, and infrastructure projects. It includes site development, road building, utility installation, stormwater systems, and other civil engineering works. Ryatt Construction specializes in heavy civil work for residential, commercial, and municipal projects.
What makes Ryatt different from other heavy construction contractors?
Ryatt is a true one-stop-shop. Most heavy civil contractors specialize in just one discipline—we handle demolition, excavation, grading, underground utilities, concrete restoration, and environmental remediation all in-house. That means one proposal, one schedule, and one team accountable for your entire site development scope.
What size projects do you handle?
We handle projects of all sizes—from single-lot residential site work to large multi-phase commercial developments. With ~39 employees and a fleet of heavy equipment, we have the capacity for substantial projects while maintaining the responsiveness of a local contractor.
Do you work on public infrastructure projects?
Yes. We regularly perform mainline extensions, right-of-way work, and utility infrastructure projects that involve coordination with municipalities including Seattle Public Utilities, SDCI, and Phoenix-area agencies.
What areas do you serve?
We serve the greater Seattle/Puget Sound metro area in Washington and the Phoenix/Valley metro area in Arizona. Our Washington office is headquartered in Seattle and our Arizona office is in Phoenix.
Looking for a Heavy Civil Contractor?
Get a free estimate for your site development project. One contractor, one proposal, from dirt to done.