Site Preparation & Excavation Contractor in Scottsdale, AZ
Reliable site preparation and excavation for contractors, developers, and municipalities. Land clearing, trenching, and grading executed to keep your project on schedule.
- Arizona commercial contractor, ROC #365816
- Licensed, bonded, and insured
- Veteran-owned and operated
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Tell us about your project and timeline. Our team will follow up within 24 hours to review scope and next steps.
Site Preparation & Excavation That Keeps Your Project on Schedule
Diamond West Civil handles every phase of site preparation to ensure your project starts on schedule, meets spec, and avoids costly delays.
What We Do
- Land clearing and grubbing
- Cut and fill operations
- Rough and finish grading
- Trenching for utilities
- Soil stabilization
- Erosion control measures
Who We Serve
General contractors, developers, and municipalities requiring reliable site preparation for commercial, residential, and infrastructure projects.
Service Area
Scottsdale, AZ and surrounding areas. Residential and commercial projects of all sizes.
Your Schedule Depends on Site Prep Done Right
A delayed site delays the entire project timeline. Rework means blown budgets. When your excavation contractor drops the ball, the entire project schedule and budget are impacted. Diamond West Civil was built by a veteran who understands that discipline and execution aren't optional. They're the standard.
What It Takes to Turn Raw Ground Into a Buildable Pad
Site prep in the Valley is equal parts dirt and paperwork. This is what we check before we price a site, and what has to be closed out before we mobilize.
Permits come before machines
Scottsdale adopted the 2021 International Building Code with Appendix J and cut the exemption list to four narrow cases, none of them based on volume or depth, so the dirt work needs a grading permit. Before a preliminary grading permit is released the city also wants the native plant permit issued, the haul route permit when it applies, the ADEQ stormwater paperwork approved, and the Section 404 certification on file. We track those dates against your schedule instead of finding out on mobilization day.
What is under the surface here
Caliche, soil particles cemented by calcium carbonate, runs from loose concretions to a hardened layer several feet thick, and not every desert lot has it. The NRCS soil survey maps Scottsdale series such as Cavelt and Cipriano with a cemented hardpan three to twenty inches down, and you can pull your own parcel in the Web Soil Survey. ADOT's own geotechnical work in the Phoenix basin calls cemented alluvium moderately difficult excavation, and competent granite, which outcrops in the Pinnacle Peak and Carefree area northeast of Phoenix, difficult enough to sometimes need blasting. We walk the site and read the soil survey before we price it, because a pad priced on a guess is how change orders start.
Compaction is proven, not promised
Fill under a shallow foundation has to meet the project's approved geotechnical report. The code carves out one exception: fill of twelve inches or less can run on ninety percent of maximum dry density by ASTM D1557 with special inspection. Public works jobs on MAG specifications typically call ninety-five percent under embankment, ninety percent per lift, and ninety-five percent in the top two feet under new pavement. We place lifts at a thickness the lab can actually test and we schedule the third-party testing so a failed density is caught in that lift, not three lifts later.
Hauling, staging, and the neighbors
Moving five thousand cubic yards or more through public right of way needs a haul route permit, and the city can require one below that at grading plan review. Two acres of disturbance, or a hundred cubic yards hauled in a day, triggers trackout control at the exit, and five acres adds a project information sign and a certified dust coordinator on site. None of this is hard. It is only expensive when it shows up as a stop work order in the middle of your pour schedule.
How We Work
Project Review
Send us your plans. We'll review scope, specs, and site conditions.
Site Evaluation
We walk the site, identify challenges, and confirm the approach.
Detailed Bid
You get a clear, line-item estimate with no hidden costs and no surprises.
Execution
We mobilize, execute, and deliver on time and to spec.
Who You'll Work With
Nick Hammond, owner
U.S. military veteran, in Arizona construction since 2005. Nick oversaw more than $100 million in U.S. State Department construction overseas before founding Diamond West Construction in 2021. He is the qualifying party on Diamond West Civil's Arizona contractor license, ROC #365816.
Diamond West Civil handles the site work: excavation, grading, and retaining walls. Our sister company, Diamond West Construction, builds custom homes and commercial projects.
Need Your Site Prepped and Ready?
Request a bid or submit your plans to Scottsdale's trusted site prep contractor.
Submit Project DetailsFrequently Asked Questions
Caliche is soil cemented together by calcium carbonate. It shows up as loose concretions or as a hardened layer that can run several feet thick, and not every desert lot has it. Where it is present, excavation is slower and spoil volumes change, which is why we look at the soil survey and walk the site before pricing rather than after.
Site prep includes land clearing, grubbing, excavation, rough grading, trenching, and soil preparation, everything needed before vertical construction begins.
Timeline depends on project size and conditions. Most residential lots take 3-7 days. Commercial sites vary based on scope.
Yes. We provide trenching for water, sewer, electric, and gas utilities as part of our site prep services.
Absolutely. We work directly from your civil plans and specs to ensure accuracy and compliance.
Yes. Send us your project details and we'll provide a detailed estimate at no cost. Diamond West Civil is fully licensed, bonded, and insured in the state of Arizona.