Diaz Environmental delivers expert septic system design, soil testing and environmental services across Arizona. Contact us today!

Trusted professionals delivering the best septic system solutions across Arizona.
Complete solutions for your septic and environmental needs

Test before you build! Evaluating soil conditions for new and existing residences.

Specialized tests to specify treatment requirements for your new septic system.

For vertical disposal to decrease septic system footprint in certain County areas.

We design any ADEQ-approved wastewater system and handle all permitting.

We work alongside installers and contractors, treating everyone fairly.
We're specialists in environmental services with a focus on teamwork, ethics, and excellence. Our extensive certifications and specialized licenses position us uniquely in the environmental and waste management field.
"Every man must decide whether he will walk in the light of creative altruism or in the darkness of destructive selfishness."
- Martin Luther King Jr
We average 3-5 business days for everything from soil testing, to designing and submission to the permitting jurisdiction. We fully own our own excavator and drilling equipment with regular maintenance schedules.
Hablo Español! Les ofrezco la confianza de 3.5 años con el condado de Maricopa para la inspección, diseño y todo el proceso para construir un nuevo sistema séptico. ¡Resultados más rápidos, precisos y consultas sin estrés!
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A showcase of our recent work and successful implementations

Complete installation of a modern septic system for a newly constructed residence in Phoenix. Included percolation testing, system design, permitting, and installation.
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Comprehensive soil and groundwater testing for a commercial development site in Scottsdale. Our report helped the client navigate regulatory requirements.
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Rapid response and repair of a failed septic system for a family in Mesa. We diagnosed the issue and completed repairs within 48 hours.
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Thorough septic system inspections for a real estate developer across multiple properties in Maricopa County.
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Ongoing maintenance program for a community of homes in Gilbert, providing regular inspections, pumping, and preventative maintenance.
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