Celebrating Our 50th Anniversary This Year!

AGW | Geotechnical and Environmental Consultants

A.G. Wassenaar, Inc. is a multi-disciplined consulting engineering firm specializing in geotechnical engineering, materials testing, construction observation and environmental services.

AGW delivers superior engineering, consulting, field, and lab services; and is recognized as reliable, responsive, and knowledgeable

About AGW

Founded in 1972, AGW is a multi-disciplined consulting engineering firm specializing in the geosciences and environmental services. Our services include, geotechnical engineering, materials testing, construction observations, automated data collection, radon mitigation services, soil and groundwater investigations and remediation, and industrial hygiene services.
Our Services

Our Services

Geotechnical Engineering

Quality geotechnical design services to meet your foundation and development needs

Field Testing, Construction Observations, and Special Inspections

Top quality construction observation and materials testing services during various construction phases

Laboratory Services

Our laboratories have the capacity to test the properties of concrete, soil and asphalt

Environmental Services

Our environmental staff provides environmental assessments and remediation, and evaluates asbestos, air quality, radon, mold, methamphetamine, and more

Automated Data Collection

AGW uses state of the art equipment and software to help municipalities improve practices and policies in road maintenance and management, and thereby improve the condition of the street network.

What Our Clients Say

"AGW has consistently demonstrated their desire to work through difficult scenarios to provide us with solid working solutions. Their ability to listen to our needs and work out programs that fit those needs can't be overstated."
"Great service and AGW's knowledge and experience in Denver make them a trusted partner of our development and construction teams."
“AGW, from the top down, has been one of the best subcontractors I have had the pleasure to work with. We are only as good as the people we hire, and AGW is at the top of our list of our most reliable and trustworthy trades. Thanks for everything you do!”


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