Excavation Contractors in San Tan Valley, AZ
Commercial and residential site work from our home base in San Tan Valley — along Hunt Highway, Ironwood Drive and Gantzel Road, from Johnson Ranch and San Tan Heights to Copper Basin.
San Tan Valley, AZ Excavation & Site Work Services
San Tan Valley became a town in September 2025, but the ground underneath it hasn’t changed. It’s desert valley floor at roughly 1,500 feet, tucked east of the San Tan Mountains and drained by Queen Creek Wash and a web of smaller channels. Pinal County’s drainage master plan for the area counts 267 culverts and about 74.5 miles of channels across a 68-square-mile watershed — a good measure of how much of this town has to be shaped to move water the right way.
That’s where every project here starts. New retail at Hunt Highway and Gary Road, medical offices at Ocotillo and Ironwood, and apartments like Tecoma Square at Bella Vista and Gantzel all begin with excavation, grading and underground utilities. As excavation contractors in San Tan Valley, we handle that groundwork — building pads, cut-and-fill, utility trenching, shoring and the grading that keeps monsoon runoff off foundations — for general contractors, developers and property owners.
Our Services in San Tan Valley, AZ
Every service we offer is available throughout the Town of San Tan Valley, from Johnson Ranch and San Tan Heights to Circle Cross Ranch and Copper Basin. Because we’re based in town, getting a crew out for a site visit is quick.
San Tan Valley’s busiest corridors — Hunt Highway, Ironwood Drive and Gantzel Road — are lined with sites waiting on building pads, parking areas and drainage features. We clear and strip sites, excavate pads to elevation, run cut-and-fill and haul off rock or caliche when it shows up. Commercial pads, quick-service restaurant builds and residential additions all get the same attention to spec and schedule.
- Site clearing and stripping (vegetation, topsoil, debris)
- Building pad excavation to elevation
- Cut-and-fill earthmoving
- Rough site excavation for roads, parking and drainage features
- Rock and caliche removal and haul-off
The county’s San Tan Valley drainage study flagged 222 structures at risk in a 100-year storm, so grading here is about more than a flat pad. We handle rough grading, finish grading and asphalt subgrade prep so water moves away from buildings and toward the channels and retention it was designed for. Lots near known trouble spots like Skyline Drive and the Bella Vista area benefit most from getting elevations right the first time.
- Rough grading to the grading plan
- Finish grading for foundations, flatwork and landscaping
- Asphalt subgrade preparation
- Drainage correction grading
New subdivisions, retail centers and the medical projects around Ironwood Drive all need conduit, water, sewer and drainage lines in the ground. We dig to the depth, width and slope on the plans — including through the caliche and hard ground common in southern Arizona — and backfill and compact once the line is in. Electrical contractors working across San Tan Valley bring us in so their crews can stay focused on conduit and wire.
- Electrical conduit trenching
- Drainage trenching (storm drains, French drains, site channels)
- Water, irrigation and communication line trenching
- Backfill and compaction
When a utility trench on a commercial site off Hunt Highway gets deep enough to cave, shoring keeps the crew safe and the excavation compliant. Desert ground can range from loose sandy material to dense caliche, so we check soil conditions on every project before choosing a shoring method. We provide the trench, the shoring and the labor as one scope.
- Trench shoring for electrical contractors
- Supported excavations for plumbers and utility installers
- Shoring method matched to soil and depth
- Trench + shoring as a single scope
Properties along drainage channels or on the sloped ground toward the San Tan Mountains often need to hold back soil and slow erosion. Our natural boulder walls manage grade changes, protect banks from runoff and turn sloped ground into usable space while fitting the desert setting. We build them for commercial sites and San Tan Valley homeowners alike.
- Hillside and slope stabilization
- Walls around driveways and building sites
- Erosion control along washes and drainage channels
- Flat, usable areas on sloped lots
Utility Work
EPCOR’s Copper Basin Water Reclamation Plant came online in 2024, and the development it unlocked needs water and sewer in the ground. We install water lines, sewer systems and the underground infrastructure behind commercial and residential projects in San Tan Valley — and we do our own trenching and shoring, so the dig and the pipe run on one schedule.
- Water line installation
- Sewer system installation
- Underground infrastructure for commercial and residential development
Local Expertise in San Tan Valley — We Know This Area
San Tan Valley sits on the valley floor east of the San Tan Mountains, and its runoff feeds Queen Creek Wash — the only federally mapped floodplain in the county’s San Tan Valley drainage study area. The county’s drainage master plan calls out repeat problem spots: sediment-clogged culverts near Skyline Drive and Ware Farms, plus flooding around Morning Sun Farms, Bella Vista, Copper Basin and Quail Run. Add the caliche layers common in southern Arizona soils, and you get ground that needs a plan before the first bucket goes in.
Our crew runs these roads every day. Hunt Highway carries us to Johnson Ranch and Pecan Creek South, Ironwood Drive and the end of the SR-24 interim freeway connect us to the north side of town, and Gantzel, Bella Vista and Ocotillo roads cross the rest of town. We work in San Tan Heights, Rancho Bella Vista, Archer Meadows and Circle Cross Ranch as well. Planned widening on both Hunt Highway and SR-24 means more construction traffic ahead — we schedule hauling and deliveries around it.
The work in town is shifting from rooftops to commercial. Skyline Ranch Marketplace and Stone Creek Crossing are coming in at Hunt and Gary, Terrazo Medical Village and Elux at Ocotillo are planned along Ocotillo Road, and OrthoArizona is planned at Ironwood and Ranch Road. Each needs pads, parking subgrade, storm drainage and utility trenching — the scopes we handle every week.
San Tan Valley is also in the middle of a permitting handoff. Since July 1, 2026, the Town handles development review, right-of-way use permits and commercial civil permits, while some building permits are still at Pinal County. Earthmoving needs a Pinal County Air Quality dust permit, every dig needs Arizona 811 marks called in at least two full working days ahead, and monsoon season — June 15 through September 30 — brings the flash floods and dust storms we plan erosion and dust control around.
Why San Tan Valley Homeowners and Contractors Choose Mirage Excavation
A Local Crew Based in San Tan Valley
We’re not driving in from the West Valley. Mirage Excavation is based in San Tan Valley, so a site visit in Johnson Ranch, Copper Basin or off Ironwood Drive doesn’t mean a half-day of windshield time — and neither does getting equipment back on site.
Three Generations of Construction Experience
Dan Renteria’s grandfather was a contractor and his father was a general contractor. Dan spent his career on the GC side before founding Mirage, so he knows what a superintendent needs from the dirt contractor: show up, communicate, and hit the grades.
We Know the New Town’s Permitting Picture
San Tan Valley’s move from county to town review on July 1, 2026 changed who handles right-of-way and civil permits. We keep up with the Town’s process, Pinal County dust rules and Arizona 811 timing so the schedule isn’t held up by paperwork.
One Crew from Pad to Pipe
Excavation, grading, trenching, shoring, boulder walls and wet utilities all come from one contractor. Fewer handoffs means fewer gaps in the schedule — which is why GCs and electrical contractors keep calling us back.
Licensed, Responsive and Free to Estimate
Mirage Excavation is a licensed Arizona contractor (ROC #362167). We’re available Monday–Friday, 7 AM–5 PM, and every project starts with a free estimate and a clear scope.
Serving San Tan Valley and Surrounding Areas
As excavation contractors in San Tan Valley, we cover every neighborhood in town and the surrounding East Valley and Pinal County communities. If your project is in or near San Tan Valley, we can get it on the schedule.
Location pages in this batch: San Tan Valley | Queen Creek | Mesa | Gilbert | Apache Junction
Location pages in this batch: San Tan Valley | Queen Creek | Mesa | Gilbert | Apache Junction
San Tan Valley neighborhoods: Johnson Ranch, San Tan Heights, Copper Basin, Pecan Creek South, Archer Meadows, Rancho Bella Vista, Circle Cross Ranch
- Queen Creek
- Gilbert
- Mesa
- Apache Junction
- Florence (including Anthem at Merrill Ranch)
- Casa Grande
- Scottsdale
- Cave Creek
Frequently Asked Questions — San Tan Valley, AZ
How much does Excavation cost in San Tan Valley?
It depends on the size of the site, how much material has to move, and what’s in the ground. A residential pad is a very different job from a commercial site with cut-and-fill and haul-off, and hitting a caliche layer can change the equipment needed. We walk the site, review your plans and give you a clear price up front — the estimate is always free for San Tan Valley projects.
Who issues Grading and right-of-way permits in San Tan Valley now?
Since July 1, 2026, the Town of San Tan Valley handles development review, right-of-way use permits, subdivision construction permits and commercial civil permits. Some building permits are still processed by Pinal County during the transition, and permits issued before July 1 stay with the County until closeout. Dust control permits come from Pinal County Air Quality. We’ll help you sort out what applies before work starts.
What is caliche, and will it slow down Excavation in San Tan Valley?
Caliche is soil cemented together by calcium carbonate — it can be as hard as concrete and is common in southern Arizona. It isn’t always visible from the surface, so we plan for it during the estimate, bring equipment that can break through it, and haul it off if it can’t be reused, so it doesn’t blow up your schedule.
When is trench Shoring required on San Tan Valley projects?
Under OSHA’s excavation rules, trenches 5 feet deep or more need a protective system such as shoring unless they’re entirely in stable rock, and trenches 20 feet or deeper need a system designed by a registered professional engineer. Soil type matters too — loose sandy material and hard caliche call for different approaches. We assess the conditions on every job and provide the shoring along with the trench.
Can you fix drainage problems on lots near Queen Creek Wash or Skyline Drive?
Yes. Pinal County’s drainage study for San Tan Valley identified flooding hotspots around Skyline Drive and Ware Farms, Morning Sun Farms, Bella Vista, Copper Basin and Quail Run. On individual lots, regrading so water flows away from structures — and sometimes trenching for a drain line or adding a boulder wall along a channel bank — fixes most problems. We’ll look at how water moves across your property and price the fix for free.
Do you work in Johnson Ranch, San Tan Heights and Copper Basin?
We do. We’re based in San Tan Valley and work across town — Johnson Ranch, San Tan Heights, Copper Basin, Pecan Creek South, Rancho Bella Vista, Circle Cross Ranch and the commercial corridors along Hunt Highway and Ironwood Drive. Residential grading, boulder walls and utility trenching are all available for homeowners in these neighborhoods.
How much does a boulder retaining wall cost in San Tan Valley?
Cost depends on the wall’s length and height, boulder size, site access and how much drainage work is needed behind it. A short landscape wall on a residential lot is a much smaller job than a wall stabilizing a channel bank or commercial slope. We’ll measure the area, talk through options and give you a free written estimate.
Ready to Get Started in San Tan Valley?
Have a pad to cut, a lot to grade or a trench to open in San Tan Valley? We’re based right here, we offer free estimates on every project, and we cover the whole East Valley. Whether your site is off Hunt Highway, near Banner Ironwood on Gantzel Road or out in Johnson Ranch, we’re ready to show up.