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Verified.

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From Subgrade to Structure.

Verified.

Geotechnical engineering, materials testing, special inspections, and environmental services that support safe, compliant, and successful projects.
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From Subgrade to Structure.

Arizona's Testing Experts

Phoenix Testing & Inspection (PTI) provides materials testing, special inspections, geotechnical engineering, and environmental services for construction projects across Arizona.

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We work with developers, contractors, engineers, municipalities, utilities, and project teams from early site investigation through field testing, inspection, laboratory analysis, and closeout.

Certified WBE

A certified Woman-Owned Business Enterprise serving public and private sector clients.

Serving Arizona
Since 2001

More than two decades supporting construction and development projects across the state.

AASHTO Accredited

Laboratory testing performed under recognized accreditation standards and documented testing procedures.

From Residential
to Industrial

Reliable data and inspections that keep projects compliant and on schedule.

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Built on Verified Results

Construction doesn’t always go according to plan. We provide the testing, inspection, and field verification needed to help teams identify issues early, document results, and keep projects moving.

Our Services

Providing testing, inspection, geotechnical, and

environmental services that support quality, compliance, and project performance.

Materials Testing & Laboratory Services

Accurate laboratory and field testing for soil, concrete, and asphalt to ensure quality, compliance, and long-term performance.

Construction and Special Inspections

On-site inspection services to verify workmanship, safety, and compliance with project specifications and building requirements.

Geotechnical Engineering

Subsurface investigations and engineering analysis to support stable, cost-effective foundation and site development decisions.

Environmental Assessments

Environmental site assessments and evaluations to identify risks and support compliant development.

Who We Serve

PTI works with a broad range of clients across Arizona, delivering reliable testing, inspection, geotechnical, and environmental support.

Construction Site Progress
Government
& Public Sector
Warehouse Construction Site
Real Estate
& Development
Under Construction Interior
Utilities
& Infrastructure
Industry & Commercial Enterprises
Construction Site Work
CONSTRUCTION & DESIGN Professionals
Wastewater Treatment Plant
Financial
Institutions

Ready to get started?
Let’s talk about your project.

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