Steamfitters/Pipefitters lay out, assemble, fabricate, maintain and repair piping systems which carry water, steam, chemicals or fuel used in heating, cooling, lubricating, and other processes. Individuals are employed by pipeline construction contractors and sub-contractors, thermal or steam generating plants, manufacturers, utility companies, oil refineries, gas plants, pulp mills and chemical plants. Experienced Steamfitters/Pipefitters may advance to supervisory positions such as Foreman, Sub-Contractor, Contractor and Construction Superintendent. Steamfitters/Pipefitters often work full-time, with overtime sometimes required to meet construction deadlines. Construction contractors may require employees to travel and live in rented accommodation or at a company "on-site" camp. Employment prospects can be sensitive to economic and seasonal changes. There is some risk of injury involved in working with power tools and heavy equipment.