Hillsboro Excavation Contractor

Experienced | Local | Excavation Company

Hillsboro is the economic powerhouse of Washington County, home to Intel’s massive campus and one of the largest planned residential developments in Oregon at South Hillsboro. Beneath this growth lies the heavy Tualatin Valley clay that makes excavation in Hillsboro uniquely challenging. The Missoula Floods deposited up to three hundred feet of silt in some areas, and the resulting clay soil holds water tenaciously, creates seasonal high water table conditions, and demands specialized techniques for productive excavation. Prodan Construction brings deep clay-soil expertise and heavy equipment to Hillsboro’s biggest residential, commercial, and infrastructure projects.

Digging Down and Building Up

Is your Hillsboro building project struggling with the heavy clay that turns every excavation into a mud battle during the wet season? Are you developing property in South Hillsboro and need large-scale site preparation and utility installation? Does your Hillsboro home have drainage problems caused by clay soil trapping water against your foundation year after year? Do you need a building pad prepared on a Hillsboro lot where the water table sits just below the surface in winter? Is your Hillsboro commercial site requiring grading and stormwater facility construction in challenging clay conditions?

No matter your Hillsboro excavation project, Prodan Construction has the clay-management expertise that Oregon’s fifth-largest city demands. We work across Hillsboro from the established neighborhoods near downtown to the massive South Hillsboro development, and we understand the soil conditions, seasonal challenges, and Washington County standards that every Hillsboro project must address. Our equipment fleet is built for clay, and our operators know exactly how to handle the material that stops less experienced contractors in their tracks.

Landscape Grading, Sloping, and Site Preparation

Grading in Hillsboro’s heavy clay is among the most demanding work we do anywhere in the metro area. The clay holds moisture for months, turns into an adhesive paste that clogs equipment, and requires precise compaction to create stable building surfaces. Our grading crews know the moisture management techniques that make Hillsboro clay workable, and we schedule projects to take advantage of the best conditions whenever possible. We grade residential building pads in South Hillsboro’s massive subdivisions, prepare commercial sites along the TV Highway and Century Boulevard corridors, and reshape existing properties where years of settling in clay have created drainage problems. Every Hillsboro grading project includes careful attention to drainage because in clay soil, water management is everything.

Septic Tank and Field Excavation

While Hillsboro’s urban core connects to city sewer, some properties on the city’s western and southern edges still rely on septic systems. Hillsboro’s clay soil is among the most challenging for septic function because it severely limits percolation rates. Prodan Construction works with soil engineers and Washington County inspectors to design and install septic systems that function in these conditions, often requiring alternative drain field designs and precise excavation to achieve adequate treatment. We handle the heavy clay with equipment designed for the task and ensure every Hillsboro septic system meets current standards.

Trenching Contractor

Hillsboro’s rapid growth, especially in South Hillsboro where thousands of new homes need full utility infrastructure, drives enormous demand for trenching work. We install water, sewer, storm, power, gas, and communication lines through Hillsboro’s clay, managing the soil conditions that make trenching here more difficult than in sandier or rockier ground. Our trenching crews compact backfill carefully because clay trenches that are not properly compacted will settle, crack pavement, and create future problems. We also replace aging utilities in Hillsboro’s older neighborhoods and connect existing properties to upgraded city services.

Excavating Foundations

Foundation excavation in Hillsboro requires managing clay from the first scoop to the final inspection. We overdig Hillsboro foundation footprints to allow for drainage material around footings, achieve the compaction specifications that engineers require in clay subgrade, and manage moisture during the critical window between excavation and concrete pour. Hillsboro’s seasonal high water table adds another variable, as foundations excavated during wet months may need dewatering to keep excavations dry. Prodan Construction handles all of these Hillsboro foundation challenges with the equipment and experience that consistent quality demands.

Property Cleanup

Hillsboro’s growth means former agricultural land is regularly being converted to residential and commercial use, and those conversions often require cleanup of farm structures, irrigation infrastructure, old fencing, and accumulated equipment. Our cleanup crews clear Hillsboro properties of all debris, remove old foundations and buried material, and grade cleared sites to development-ready condition. We also handle cleanup for redevelopment projects in Hillsboro’s older neighborhoods, preparing sites for the denser construction that the housing shortage demands.

Retaining Walls

Hillsboro’s generally flat terrain requires fewer retaining walls than hillier communities, but walls are still needed for grade transitions between properties, along roadway cuts, and wherever building elevations create level changes. Our retaining wall excavation in Hillsboro focuses on creating stable foundations in clay, with intensive drainage systems that prevent the water retention issues that are clay’s signature characteristic. Without proper drainage, retaining walls in Hillsboro’s clay will eventually fail as water pressure builds behind them. Learn about our retaining wall construction and how we engineer walls specifically for Hillsboro’s clay conditions.

Specialty Excavation Projects

Hillsboro’s growing community and larger lot sizes in some neighborhoods create opportunities for creative excavation projects. Here are ideas for Hillsboro property owners:

• Excavating a backyard swimming pool with engineered drainage in Hillsboro’s clay
• Creating a raised building pad for a shop or outbuilding above the water table
• Digging a bioswale or rain garden to manage stormwater naturally on your Hillsboro property
• Grading a level sports court or recreation area with proper subsurface drainage
• Excavating for a geothermal heating system in Hillsboro’s deep clay deposits
• Building a terraced backyard with stone retaining walls and garden beds
• Preparing a foundation for a large detached garage or agricultural building on the outskirts of Hillsboro

Hillsboro’s clay soil is legendary among construction professionals, and Prodan Construction has earned a reputation for working through it productively when other contractors get stuck. If your Hillsboro project involves moving earth, we are the contractor to call.

Residential and Commercial Excavation in Hillsboro

Hillsboro homeowners choose Prodan Construction for residential excavation because we know how to handle the clay that defines this community’s building environment. We protect your Hillsboro property from the mess that clay creates during construction, time our work to minimize soil problems, and deliver finished results that manage drainage properly for the long term. Our residential excavation in Hillsboro covers everything from small backyard projects to complete site preparation for new homes in South Hillsboro’s newest neighborhoods. Every Hillsboro homeowner receives personal attention and clear communication throughout the project.

Hillsboro’s commercial excavation demands are substantial, driven by tech campus development, retail construction, and the massive South Hillsboro infrastructure buildout. Prodan Construction provides commercial-scale excavation services that keep pace with Hillsboro’s growth, handling site preparation, mass grading, utility installation, and stormwater facility construction. We work with the city’s development team and coordinate with general contractors to maintain the project schedules that Hillsboro’s commercial builders require. Our clay-management expertise means fewer weather delays and more productive work days on Hillsboro commercial sites.

If you are a Hillsboro homeowner planning an excavation project, Prodan Construction helps you navigate the unique challenges of building in clay. We assess your specific lot conditions, explain how soil moisture and seasonal timing affect your project, and provide a transparent estimate that accounts for the clay-related work that Hillsboro sites require. Our goal is to give you realistic expectations and deliver results that exceed them. Hillsboro homeowners value our honesty about what clay soil demands and our ability to work through those demands efficiently.

Hillsboro is growing faster than most Oregon cities, and every new home, business, and road depends on excavation done right in some of the most difficult clay soil in the state. Prodan Construction has the specialized expertise and heavy equipment to meet that challenge, and Hillsboro’s builders and property owners trust us to deliver consistent quality in conditions that test every contractor.

Equipped and Local Hillsboro Excavation Experience

Our Hillsboro equipment fleet is optimized for clay. We operate heavy-duty excavators with wide, flat-bottom buckets that shed clay more effectively than standard designs, tracked machines with aggressive ground-engaging features for wet conditions, and dump trucks capable of hauling heavy clay without bogging down on soft Hillsboro job sites. Our compaction equipment achieves the density specifications that Hillsboro’s engineers require in clay subgrade, and our grading attachments create smooth finishes even when working with material that resists shaping. Our operators have spent years refining their technique for Tualatin Valley clay, and that expertise is your greatest asset on a Hillsboro project.

Start your Hillsboro excavation project with a free estimate from Prodan Construction. Call us at (503) 773-6949 or submit a request through our website, and we will schedule a site visit to your Hillsboro property. We evaluate the soil conditions, assess the scope of work, and deliver a comprehensive proposal with honest pricing. Hillsboro property owners and developers have relied on Prodan Construction to get excavation done right in the toughest clay conditions, and we are ready to bring that same expertise to your project.

Prodan Construction is Your Hillsboro Excavation Contractor

Don’t just take our word for it!