Onsite Installations Inc.,(formerly Berwick Construction Ltd.) is a general excavation company that specializes in the design and installation of onsite septic systems. 
Onsite Installations Inc. is based in Prince George, British Columbia, a geographical hub in the Central Interior of the Province. The company is owned and operated by Dean Dingwall, an “Authorized Person”, in the form of an Registered Onsite Wastewater Practitioner (ROWP) certified with the designations of Planner, Installer, Maintenance Provider, and Private Inspector of Residential Onsite Septic Systems.
While core competencies are focused on the waste water industry, management has an extensive construction based background in soils and aggregate production, blasting, mining, crushing, site development and reclamation.
Onsite Installations Inc. also offers a wide range of services relating to site development, including general excavation for foundations and services, supply and hauling of soils and aggregates, and landscaping.