Correcting Vapor Intrusion Concerns Throughout California
Defining Vapor Intrusion Mitigation
Vapor intrusion is an invisible, often overlooked threat that impacts property owners, developers, homeowners, land investors, and facility managers throughout California. Naturally occurring methane and manmade volatile organic compounds (VOCs) rise through the soil and can infiltrate structures through cracks, joints, and other openings. Once inside, these vapors pose serious health risks, including respiratory issues, neurological impacts, and cancer.
In California, where former industrial sites, dry cleaners, and landfills are common—particularly near residential and commercial redevelopment zones—vapor intrusion is a growing concern. It can occur during any phase of a site’s lifecycle: from pre-construction to full occupancy and even long after a site has been abandoned.
At Advanced Construction Technologies (ACT), we offer proactive, full-service vapor intrusion mitigation solutions designed to protect indoor air quality and meet California’s strict environmental standards.
Our Vapor Intrusion Mitigation Process
ACT’s mitigation systems are engineered for California’s diverse landscapes, soil conditions, and regulatory landscape. Whether you’re preparing a brownfield site in the Bay Area or safeguarding a new development in Southern California, our solutions are tailored to meet your project’s exact needs.
We offer both passive and active mitigation systems. Our proven process includes:
- Site Assessment – We evaluate soil vapor levels, building design, and environmental conditions.
- System Design & Planning – Site-specific designs that align with local and state regulatory frameworks, including CalEPA and DTSC guidelines.
- Installation – Performed by experienced field crews using best-in-class vapor barriers, sub-slab systems, and detection equipment.
- Monitoring & Maintenance – Including ongoing reporting, remote system alerts, and regulatory compliance documentation.
We also manage every detail behind the scenes: from accurate bid estimates and internal quality checks to hands-on project management, open client communication, and value engineering that maximizes protection while minimizing cost.
Why Choose Us for Vapor Mitigation?
When you choose ACT, you’re selecting a team that doesn’t just follow environmental best practices—we helped create them. We bring over two decades of proven experience and deep knowledge of California’s environmental standards and permitting processes.
What Sets Us Apart:
- Licensed and certified professionals familiar with local regulatory bodies like the California Regional Water Quality Control Boards and DTSC.
- Product R&D
- High-performance solutions include methane and VOC barriers, gas detection systems, and active ventilation technologies.
- Regulatory alignment with CEQA, CalEPA, and South Coast AQMD protocols.
- End-to-end support, from design and permitting to long-term monitoring.
- No shortcuts—every project is reviewed for safety, accuracy, and sustainability.
- Collaborative communication with your development team, environmental consultants, and regulatory agencies.
- Continuous innovation through emerging tech and evolving best practices in vapor control.
We deliver mitigation strategies that are not only effective but built to last, protecting your people, property, and peace of mind.
Who We Serve
- Aerospace & Defense
- Industrial, Pharmaceutical & Logistics Facilities
- New Residential Construction & Commercial Redevelopment
- Municipalities, Universities, Schools, and Hospitals
Contact Us for Environmental & Construction Solutions
Whether you’re tackling a complex redevelopment in Southern California or a high-stakes environmental review in Northern California, Advanced Construction Technologies is here to help.
Reach out today to discuss your project, request a bid, or schedule a consultation with our engineering and mitigation experts.
Let’s talk about your project.
About Advanced Construction Technologies
Founded in 2000, Advanced Construction Technologies is a multidisciplinary environmental and construction firm with decades of experience in California, New Mexico, Utah, Colorado, Washington, Oregon, Idaho, Texas, Arizona, Nevada, and Montana. While vapor intrusion mitigation is our specialty, we offer a full suite of services for developers, property managers, municipalities, and attorneys throughout the state.
Additional Services Include:
- Construction defect litigation support
- Telemetry and sensor system installation
- Brownfield redevelopment
- Landfill liner construction
- Excavation and grading
- Slope stabilization and drainage improvement
From Los Angeles to Sacramento and beyond, ACT helps clients turn environmental risk into opportunity, with safety, compliance, and integrity at the core of every project.
Trusted Brands We Use
We work with the most respected names in vapor mitigation and detection to deliver uncompromising performance:
Cetco, Epro, Land Science, Stego, Aquafin, Solmax, Layfield, Delphian, Drager, RC Systems, SE Sensor Electronics, SMC Sierra Monitor, RKI Instruments, Mircom, Fire-Lite Alarms by Honeywell
Frequently Asked Questions
What are some examples of value engineering that can reduce prices?
Our team evaluates each site individually to propose optimized solutions that lower costs without sacrificing safety. This might include selecting more cost-efficient materials, minimizing excavation, or reusing site assets. Let’s discuss your project’s needs on a consultative call.
What type of equipment do you use for 24/7 monitoring?
We use advanced Fire Alarm Control Panels (FACP) with cellular systems such as Telguard TG-7. These ensure constant communication and remote alerts, giving clients real-time insight into system performance and safety.
Do you do both design and installation?
Yes. We offer full-service, in-house design and installation. We also collaborate with external environmental engineering teams to install third-party system designs with full adherence to specs.
How long has ACT been in business?
We’ve proudly served the West Coast since 2000—over 25 years of leadership in construction and environmental safety.
What makes ACT different from competitors?
Few firms match our depth of experience, in-house engineering, and regulatory insight. Our founder, Glenn Tofani, helped shape many of today’s vapor intrusion standards, and we continue to lead the industry with robust systems, technical innovation, and integrity-driven work.
Part of the
FullTerra Family
Together with our sister companies, we provide comprehensive design-build-monitor solutions that protect properties and people across all 50 states.
Our California roots have grown into nationwide reach
As the environmental industry has grown, so have we. We’ve successfully designed and installed soil, groundwater, and vapor mitigation systems in 25 states.
- Design / Installation
Designed and installed systems across the nation
- Offices
Corporate HQ in Irvine, CA with an office in San Ramon, CA
Complex sites require sophisticated solutions.
Join developers and property owners nationwide who trust us with their most challenging environmental projects.
Complex sites require sophisticated solutions.
Join developers and property owners nationwide who trust us with their most challenging environmental projects.