Phoenix Excavation Co. provides drainage grading and excavation services for residential and commercial properties across Phoenix and the greater Salt River Valley metro. Our dirt-work capabilities include site preparation grading, foundation excavation and building pads, utility trenching, land clearing, pool excavation removal, and dirt hauling. We also perform concrete demolition removal, underground utilities, hydro excavation, and vacuum excavation when the site scope calls for them. Each grading plan starts with the property's actual elevations and the path stormwater needs to follow.
Phoenix's flat desert terrain and dense caliche can leave a yard, driveway, or building pad holding water after a monsoon storm. A negative grade can direct runoff toward slabs, garages, patios, and block walls instead of away from them. We survey the site, establish the required cut and fill, shape the drainage path, and compact the soil in controlled lifts. That measured process gives property owners a clear fix for the cause of ponding rather than a layer of fill placed over the same bad grade.
Our crews use laser-guided grading equipment, compact to ASTM D1557 modified Proctor density standards, and test compaction before closeout. Phoenix grading work is planned around the city's Stormwater Policies and Standards Manual and Planning and Development Department review requirements. Call for a free on-site estimate and grade assessment.
Phoenix Excavation Co. provides drainage grading in Phoenix and across Scottsdale, Tempe, Glendale, Mesa, Chandler, and Peoria.
Drainage grading shapes the land so stormwater moves away from foundations, garages, and other vulnerable parts of a property instead of collecting in low spots. That constructed slope matters across Phoenix's largely flat, 517.9-square-mile desert floor, where natural drainage is limited.
Caliche is a cemented calcium carbonate hardpan that can sit just a foot below grade and resist infiltration almost like concrete. When a monsoon cell drops an inch of rain in under an hour, the finish grade must give that runoff a controlled route away from structures.
Surface grading forms visible slopes, swales, and pads, while subsurface drainage uses French drains, catch basins, and storm-drain tie-ins to move water underground or toward a retention area. Many Phoenix properties need both approaches working together.
A correctly built grade addresses how water enters, crosses, and exits the site. The result is a drainage path designed around the property rather than a temporary cover over the low spots.
From a backyard that stays wet for three days after a July storm to a five-acre commercial pad in Laveen, the right earthwork depends on access, elevation, soil, and runoff volume. We match the grading method and equipment to those site conditions.
We strip organic material and loose fill, expose stable subgrade, and calculate cut-and-fill volumes from surveyed elevations. Soil is moisture-conditioned and compacted in lifts so the new grade has a stable base.
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For additions, casitas, and new construction, we excavate and grade the building pad to the elevations established for the project. The surrounding finish grade is shaped to keep water moving away from the finished floor and slab edges.
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Residential regrading corrects low spots and slopes near patios, block walls, pool decks, and foundations. On tight lots, swales, diversion berms, catch basins, or French drains may be integrated to move water without sending it onto a neighboring property.
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We perform mass grading and excavation for retail pads, warehouses, offices, subdivisions, and industrial sites. Dirt is cut and balanced on-site where the plan allows, while parking areas, loading docks, drainage easements, and retention features are graded to the civil engineer's elevations.
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Pool removal requires more than filling the excavation. We place and compact backfill in lifts, then regrade the surface to match the property's drainage path so the former pool area does not settle unevenly within a season.
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Utility trenching is coordinated before final grade so underground utilities do not disrupt completed slopes. We also support storm-drain tie-ins, catch-basin routes, hydro excavation, and vacuum excavation when the plan requires careful work around buried infrastructure.
Request EstimateThe correct approach may rely on surface shape, underground collection, engineered retention, or a combination of methods. We select the option after reviewing elevations, soil, access, structures, and the site's existing runoff path.
Surface grading reshapes visible soil so gravity can move water along a defined route. Swales and diversion berms add control when a straight slope cannot carry the expected monsoon runoff.
Subsurface drainage collects water that gets past the surface grade or cannot cross the property safely at grade. French drains and catch basins can route that water toward an approved storm-drain tie-in or retention area.
Building-pad work establishes a stable subgrade and the planned finished-floor relationship before construction proceeds. It combines elevation control, soil preparation, and compaction with drainage away from the future structure.
Commercial, multi-family, subdivision, and industrial sites often require engineered grading and on-site retention sized for the design storm. Mass grading coordinates large cut-and-fill volumes with paved areas, drainage easements, and underground utilities.
After pool excavation removal, the void must be backfilled and compacted before the yard is restored. Final regrading ties that filled area into the property's intended drainage slope.
A quarter-acre Arcadia lot and a large commercial pad do not need the same plan, equipment, or drainage capacity. We base the approach on surveyed elevations, soil condition, site access, cut-and-fill needs, stormwater path, and whether City of Phoenix review or an engineered plan applies.
We check elevations at the foundation, mid-yard, property line, and other critical points to identify where water enters, pools, and should exit. New grade stakes and cut-and-fill calculations turn that survey into an executable drainage plan.
Laser-guided equipment helps crews shape the planned elevations instead of estimating slope by eye. Soil is compacted to ASTM D1557 modified Proctor density standards, with nuclear density or Proctor testing used on larger commercial jobs before closeout.
Our grading work is built around the City of Phoenix Stormwater Policies and Standards Manual and the Planning and Development Department's grading and drainage checklist. When the scope requires review, we account for plan submittal, permit needs, and their effect on project cost and timing.
Phoenix Excavation Co. is a licensed Arizona Registrar of Contractors operation and is insured for residential backyard work and mass commercial grading. We combine surveyed elevations, laser-guided equipment, lift compaction, and finish-grade verification with practical coordination for Phoenix review requirements. The goal is a measurable drainage result that addresses the cause of ponding and settlement.
Get a Free Grade AssessmentA yard with zero fall has no reliable path for water to leave. Phoenix properties in areas from Ahwatukee to Desert Ridge can remain ponded long after a storm until the low points and outlet path are corrected.
Even a few inches of slope toward a house can push water against slabs, footings, and saturated block walls. Regrading reverses that path so the ground falls away from the structure.
Phoenix caliche can keep rainfall near the surface instead of letting it soak into the soil. A site with this hardpan needs a defined surface or subsurface route rather than relying on infiltration alone.
Downpours during the July-through-September monsoon season can turn driveways and hardscape into fast runoff channels. Correct slopes, swales, and collection points keep that water from being directed into garages, patios, or pool areas.
Loose fill and skipped soil preparation can let a regraded yard settle unevenly within a year. Moisture conditioning, controlled lifts, and density verification help the finish grade hold its intended shape.
Exposed desert soil can wash during a monsoon storm, and a drainage fix cannot simply push runoff onto a neighbor's property. Silt fencing, temporary swales, staged compaction, and a planned final outlet help manage erosion during and after construction.
Our sequence is designed to find the drainage cause, build the required elevations, and verify the finished work. The same core steps apply whether the project is a small residential regrade or a commercial earthwork scope.
We take level readings at the foundation, middle of the site, property line, and drainage features to document the current grade and locate low points.
Before digging, underground utilities are located and the existing stormwater entry and exit paths are mapped. This establishes where excavation can proceed and where water can be directed.
We set new grade stakes and calculate the soil that must be cut, reused, stockpiled, or hauled away. That balance avoids unnecessary over-excavation and replacement fill.
High spots are cut and the finish grade is formed to the planned slope. Swales, diversion berms, catch-basin routes, and other drainage features are shaped where the site needs more than a straight fall.
Soil is moisture-conditioned and compacted in lifts rather than placed loose. This step builds density throughout the fill and reduces the risk of the drainage grade settling back into a low point.
We re-survey the completed elevations and verify that the drainage path matches the plan. Larger commercial projects also receive specified density testing before the work is considered complete.
If water is collecting near your house, garage, patio, driveway, or building pad, an on-site assessment can identify the elevations and drainage path behind the problem. Request a free estimate to review the grading scope, access, drainage features, and any Phoenix plan or permit considerations.
These answers cover slope, drainage methods, Phoenix permitting, project cost, and the site conditions that shape a grading plan.
Call Our Grading TeamThe process starts by surveying existing elevations and tracing water from its entry point to the low area where it collects. High spots are cut, low areas are filled, and the new grade is compacted in lifts so it keeps the intended slope. The finished elevations are then re-surveyed.
The general standard is at least 1/4 inch per foot, roughly 2 percent, for the first 6 to 10 feet away from a structure. That equals about a 6-inch drop over 24 feet. Some older guidance calls for 1 inch per foot over the first 5 to 10 feet, so the final slope is selected for the site's space and drainage needs.
Surface grading shapes visible soil, swales, berms, and pads so water moves by gravity. Subsurface drainage uses features such as French drains, catch basins, and storm-drain tie-ins to collect and route water underground. A property may need both methods working together.
Local yard drainage projects run from roughly $2,145 to $7,167 and average near $4,625. Broader landscape grading and drainage work can range from about $1,000 for a small foundation fix to $6,400 for a typical whole-yard project, while a full-property regrade with an integrated drainage system can reach $15,000. An engineered plan and city review are separate considerations when required.
Yard or site size, existing slope, soil condition, equipment access, and the required cut-and-fill volume all affect pricing. French drains, catch basins, a full regrade, hauling, an engineered plan, and permit review can also change the scope. A free on-site estimate lets those conditions be evaluated before quoting.
Permit requirements depend on the project's scope. New building pads, additions, and site development require grading and drainage plan review, while smaller residential work may not require a separate permit when it does not redirect drainage onto neighboring property or public right-of-way. The scope should be checked before work begins, with plan submittal handled when required.
Arizona follows the common enemy doctrine for surface water and floodwater, but a Phoenix construction project still has to satisfy applicable municipal grading and drainage review. A drainage plan should protect the property without simply pushing runoff onto adjacent land. Permit or dispute questions should be confirmed with the appropriate city department.
Caliche is a cemented calcium carbonate hardpan that can resist infiltration almost like concrete. When it sits close to the surface, stormwater cannot be expected to soak in quickly. Grading, swales, and subsurface collection give that water a planned route instead.
Residential work usually focuses on foundations, yards, patios, pool areas, and localized drainage problems. Commercial and mass grading involves much larger cut-and-fill volumes, engineered elevations, parking and loading areas, utility sequencing, and retention or detention requirements. Commercial earthwork is commonly priced by cubic yard rather than as one small-site job.
The pool excavation is backfilled in controlled lifts, with each lift compacted before more material is added. The surface is then regraded to connect with the property's drainage slope. Skipping lift compaction can allow the former pool area to settle unevenly.
Failed grading often points to inadequate compaction or a slope that was not built to the planned elevations. Low spots can return as loose fill settles, sending water back toward the same vulnerable areas. Compaction in lifts, finish-grade surveying, and density testing where specified help prevent that outcome.
Silt fencing, temporary swales, and staged compaction help keep exposed soil from washing during monsoon storms. Larger commercial projects may also require coordination with NPDES stormwater pollution prevention requirements and City of Phoenix retention standards. The final grade is shaped to continue managing runoff after construction.
Phoenix Excavation Co. serves Phoenix and the greater Salt River Valley metro. Supported service areas include Scottsdale, Tempe, Glendale, Mesa, Chandler, and Peoria, along with Phoenix areas such as Arcadia, Laveen, Ahwatukee, and Desert Ridge.