Grading and Site Preparation in Portland, Oregon
Proper grading is the foundation of every successful construction project. A&N Construction and Excavation provides professional grading and site preparation services for residential and commercial projects across the Portland metro area. From rough grading a raw lot to precision finish grading for landscaping, we ensure your site is level, drains correctly, and is ready for the next phase of construction.
What Is Grading and Site Preparation?
Grading is the process of shaping the land's surface to achieve proper drainage, level building areas, and prepare the site for construction, landscaping, or paving. Rough grading establishes the overall shape and slope of the land. Finish grading is the final, precise leveling that creates a smooth, even surface ready for sod, concrete, pavers, or other finishes. Site preparation includes clearing vegetation, removing debris, stripping topsoil, and compacting the subgrade in addition to grading.
Our Grading Services
Rough Grading
We reshape the raw terrain to establish building pads, drainage slopes, and overall site contours. This is typically the first step after clearing.
Finish Grading
The final pass that creates a smooth, even surface at the exact elevation required. This is what your landscaper, concrete contractor, or builder needs to do their work.
Building Pad Preparation
We create a level, compacted pad at the exact elevation specified for your home, garage, ADU, or commercial building foundation.
Driveway Preparation
We grade and compact the base for new driveways, ensuring proper slope for drainage and a solid foundation for concrete, asphalt, or gravel.
Concrete Preparation
We prepare flat, compacted, properly graded surfaces for patios, walkways, slabs, and other concrete work.
Compaction
We compact fill material and subgrade to engineering specifications using plate compactors and rollers. Proper compaction prevents settling and structural issues down the road.
When You Need Grading
Your property doesn't drain properly and water pools near your foundation or in low spots. You're building a new home, garage, or addition and need the site prepared. You're installing a new driveway and need a proper base. Your yard is uneven and you want a level surface for landscaping or outdoor living. You're developing a raw lot and need it graded for construction.
Grading Cost in Portland
Grading costs depend on the area size, amount of soil that needs to be moved, whether fill material needs to be imported, and the precision required. Small residential grading jobs (driveway prep, backyard leveling) typically range from $2,000 to $6,000. Full lot grading for new construction can range from $5,000 to $20,000+. We include all equipment, labor, and hauling in our estimates.
Why Choose A&N for Grading
Grading mistakes are expensive to fix — if water drains toward your foundation instead of away from it, you'll pay for it later. We use laser-guided grading equipment to achieve precise slopes and elevations. We understand Portland's drainage requirements and ensure your site meets code.
Grading & Site Prep Service Areas
We serve the entire Portland, Oregon metro area.
Frequently Asked Questions
What's the difference between rough grading and finish grading?
Can you grade a yard that's already landscaped?
Do I need grading before pouring a patio or driveway?
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A&N Construction and Excavation · CCB #268549