Our Services


At Keystone Environmental, we know that the purpose of each project is to support your overall business plan. By taking the time to understand how our services help you to achieve your goals, we are able to to tailor each project, small and large, to your specific needs and requirements.

With our backgrounds in applied sciences and engineering, we know the ins and outs of environmental regulations, understand the processes and technical issues, and the implications to your business. With over 30 years of experience in both industry and commercial projects and government regulations we represent your overall objectives.


Our Biological Services team allows clients to maximize the potential of their projects through appropriate environmental planning (e.g., stream-side protection, endangered species regulations, etc.).

Contaminated Sites

Contaminated Sites Assessment services are crucial as many sites have become contaminated through past industrial or commercial activities that introduced contaminants to the environment and associated regulatory implications could be costly and/or time-consuming.


Environmental engineering is generally described as the application of scientific and engineering principles for protection of human populations from the effects of adverse environmental factors and the protection of the environment for potentially deleterious effects of natural and human activities. 

Indoor Air Quality

Sterling IAQ Consultants Ltd., a division of Keystone Environmental Ltd., are leaders in indoor air quality, hazardous building materials and occupational hygiene.