Phoenix Methane Mitigation Systems for Redevelopment & Construction

Methane gas poses serious safety and compliance risks on redevelopment and new construction projects throughout Phoenix and the greater metropolitan area. Advanced Construction Technologies (ACT) provides turnkey methane mitigation systems designed to protect buildings, occupants, and project timelines from subsurface gas hazards.

Our Phoenix-based methane mitigation services support developers, builders, engineers, and property owners working on complex sites where historic land use, soil conditions, or regulatory requirements demand proven environmental controls.

The Hazards of Methane Gas

Methane is a colorless, odorless, and highly flammable gas that can accumulate beneath buildings and enclosed spaces. When unmanaged, methane presents serious safety risks, including explosion and fire hazards when concentrations reach combustible levels, as well as oxygen displacement that can create unsafe indoor air conditions for workers and occupants.

Common Methane Sources in the Phoenix Area

Redevelopment and infill construction across Phoenix frequently encounter methane due to past and present land uses. Common sources include former landfills and waste disposal sites, agricultural land with organic-rich soils, industrial and manufacturing properties, waste handling facilities, and naturally occurring methane in desert soils with elevated organic content.

Methane risks may emerge during construction—particularly during excavation and grading—or post-occupancy, as gases migrate upward into finished structures. As Phoenix continues to experience rapid redevelopment and densification, methane mitigation is a critical consideration for long-term safety and compliance.

When to Test for Methane in Phoenix, AZ

Early methane testing helps project teams identify subsurface gas conditions before they impact design, permitting, or construction schedules. Proactive evaluation allows mitigation measures to be incorporated efficiently rather than addressed through costly redesigns later in the project lifecycle.

Due Diligence Before Construction

Methane testing is often recommended during early due diligence when a site is located near known or historic landfill operations, areas with prior agricultural or industrial land use, or properties flagged during environmental review. In redevelopment corridors throughout Phoenix, subsurface methane conditions are frequently tied to historical land activity that may not be visible at the surface.

Phase II Environmental Site Assessments

Soil gas sampling performed as part of a Phase II Environmental Site Assessment (ESA) may detect methane concentrations that trigger mitigation planning. These findings often influence foundation design, building systems, and construction sequencing.

Construction Activities That Increase Risk

Construction activities such as site grading, deep excavation, utility trenching, and subgrade preparation can disturb subsurface soils and release trapped methane. Without proper evaluation and mitigation, these conditions may create safety risks during construction and persist after occupancy.

Regulatory and Lender Requirements

Methane testing and mitigation may be required or strongly encouraged by the Arizona Department of Environmental Quality (ADEQ), local Phoenix-area building departments, lenders, and insurers. Proactive methane assessment helps ensure regulatory alignment while protecting schedules, budgets, and long-term building performance.

Market Sectors We Serve

ACT supports methane mitigation projects across Phoenix and Maricopa County, serving:
  • Aerospace & Defense
  • Industrial, Pharmaceutical & Logistics Facilities
  • New Residential Construction & Commercial Redevelopment
  • Municipalities, Universities, Schools, and Hospitals across Los Angeles County
Our experience spans both ground-up construction and the redevelopment of legacy sites with complex environmental conditions.

Contact ACT Today

Don’t let methane put your next development project at risk. Contact the team at Advanced Construction Technologies for methane testing, mitigation design and installation, or help navigating LADBS regulations.

Let’s talk about your project.

How ACT Can Help

ACT delivers turnkey, design-build methane mitigation services tailored to Phoenix-area conditions and regulatory requirements. Our integrated approach ensures methane risks are addressed efficiently from initial evaluation through long-term system performance.

Trust us for:

  • Methane soil gas testing and monitoring
  • Site-specific mitigation planning
  • Engineering and system design
  • Installation and construction coordination
  • Post-installation validation and long-term maintenance

Methane Mitigation System Options

Depending on site conditions and project requirements, ACT designs and installs active venting systems, passive venting systems, methane barrier membranes, and sub-slab ventilation systems. Each system is customized to account for Arizona soil conditions, hot-weather construction considerations, building use and occupancy type, and applicable guidance from ADEQ, local building departments, and relevant federal standards.

Part of the
FullTerra Family

Advanced Construction Technologies (ACT) is part of the FullTerra family of companies, a nationwide environmental mitigation network providing integrated solutions for complex sites.

Through this partnership, ACT delivers a coordinated design-build-monitor approach that combines engineering, construction, and long-term performance support under a single team.

As part of FullTerra, ACT supports projects across all 50 states, bringing consistent quality, proven systems, and scalable resources to redevelopment and construction sites of any size.

Arizona Expertise, Nationwide Reach

The environmental industry has grown, and we have too. We’ve designed and installed soil, groundwater, and vapor mitigation systems in Los Angeles and throughout California, Utah, Colorado, Arizona, New Mexico, and Nevada.

ACT provides methane mitigation services throughout Phoenix and the surrounding metro area, including Tempe, Mesa, Chandler, and Scottsdale. Recent local projects include methane mitigation for a 200-unit residential development in Tempe, an industrial facility in Mesa, and a large-scale residential development in Arizona.

Complex sites require Advanced solutions.

Methane risks require experienced mitigation partners who understand environmental regulations, construction sequencing, and long-term system performance. ACT helps Phoenix-area developers, engineers, and property owners protect safety, maintain compliance, and safeguard project schedules through proven methane mitigation solutions.

Complex sites require sophisticated solutions.

Join developers and property owners nationwide who trust us with their most challenging environmental projects.