© 2019 GDSI  |  All Rights Reserved | Terms of Use

Website design by Impressions Marketing Communications

8823 North Harborgate Street

Portland, OR  97203

o: 503-236-4299 

f: 503-961-1183 

c: 503-544-5736 

Oregon GDSIP# PB1630 

ORCCB# 221268 

Washington L&I# GDSI***828MO 


GDSI is a subsidiary of Willamette Construction Services


At GDSI, we’re focused delivering high-quality results with end-to-end services. That’s why we created our Abatement Services Division. Quality control is more effectively managed and services are delivered more efficiently with our certified, in-house team.


While prohibited in new construction since 1978, contractors were allowed to exhaust their inventories of asbestos and, therefore, the substance can still be found in structures built as late as 1986. GDSI’s team will manage the abatement (removal) or remediation (safe encapsulation) of asbestos in your structure to exceed industry safety standards.


Polychlorinated biphenyls (PCB’s) are highly toxic substances that were commonly used for things such as microscope oils, electrical insulators, capacitors, and electric appliances like television sets or refrigerators. Exposure to PCB’s can cause respiratory and other health problems. Abatement of PCB’s requires expert knowledge and equipment to ensure safe and complete removal and responsible disposal.


Lead-based paints can potentially create unhealthy environments in your structure.  The GDSI team manages this abatement process professionally, safely and efficiently.



Our Pacific Northwest climate provides wonderful living for us, but also ideal conditions for mold to grow. Left unattended, mold can potentially create toxic and unhealthy indoor environments. GDSI’s expert team will identify and remove mold, keeping your structure safe and healthy.

Meet Our Abatement Experts

Bob Farace

Abatement Division



An expert in environmental awareness, Bob is a certified supervisor in asbestos abatement and certified in lead renovation, repair and painting (LRRP) for renovations. 
Bob Gordon

Abatement Division Manager



Bob is an environmental awareness and hazardous waste expert with more than 25 years of large-scale abatement experience. In 2017, he was appointed the honor of a contractor liaison for the Department of Environmental Quality (DEQ) Asbestos Rulemaking Board. Bob is licensed in Oregon and Washington for abatement supervision, certified for lead renovation, repair and painting (LRRP) and is one of few Oregonians to maintain federal certification as an Inspector, Management Planner and Project Designer under the Asbestos Hazardous Emergency Response Act (AHERA).