Trusted Septic & Excavation Experts in Southeastern Arizona

From site preparation and engineered septic systems to utility trenching, demolition, and building pads, our in-house crews deliver turnkey infrastructural solutions across Graham and Greenlee Counties.

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Our Engineering Specialties

Providing high-precision civil infrastructure and site development services for residential, commercial, and municipal projects.

Septic Systems

Complete multi-tier septic system layouts, design coordination, structural tank replacements, health department inspections, and precision repairs using durable concrete tanks built to specification.

Excavation & Dirt Work

High-volume land clearing, complex sitework leveling, heavy grading protocols, drainage mitigation, and professional civil excavation assets for any scale lot footprint.

Building Pads

Engineered, certified, and fully compacted engineered building pads optimized for manufactured home anchoring, custom residential properties, and local commercial structural expansions.

Utility Infrastructure

Underground line trenching, main water pipeline extensions, sewer utility line integration, and specialized electrical conduit installation built strictly to county structural guidelines.

Block Walls & Underpinnings

Durable concrete block wall perimeter structures and heavy-duty structural block skirting systems tailored to enhance property value and satisfy permanent home parameters.

Demolition Services

Full-scale teardown deployment for site-built properties, manufactured home transport extractions, reinforced concrete deck breakdowns, tree site extractions, and certified waste disposal.

Proven Capabilities

A benchmark portfolio of local municipal, institutional, and commercial infrastructure projects successfully completed in our region.

Starbucks Retail Site

Complete site development, architectural lot clearings, and core subgrade excavation support pipelines.

Strive Gym Project

Comprehensive commercial sub-foundation site preparation, dynamic mass grading, and utility pad layouts.

Quail Ridge Expansion

Civil municipal utility infrastructure including deep main water line extensions and trench layouts.

Grand View Apartments

Multi-family asset master infrastructure, site stabilization, configuration setup, and sewer path services.

About Our Firm

Montoya Septic Systems & Excavating is a premier, locally owned civil contracting operation serving Safford, Thatcher, Graham County, Greenlee County, and the broader Gila Valley ecosystem. We specialize in complex subsurface septic layouts, structural site preparations, foundational utilities, and heavy structural demolition profiles.

Looking for a Complete Land & Housing Package?

We operate in lockstep with our integrated partner institution, Five-Star Home Center. If you are configuring raw land for immediate residential layout development, visit Five-Star for a full inventory of homes, regional financing strategies, structural transportation, modular setups, and complete, turnkey land-home packages.

Explore Turnkey Land-Home Packages →

Let's Discuss Your Project Details.

Contact our local field operations desk directly or drop your data variables into our structural evaluation app below. We provide clear, comprehensive site estimates for regional contractors and property owners.

Call Field Office: (928) 428-4930