Pittsburg is a city in Contra Costa County, California. The cost of living in Pittsburg is lower than the national average and most cities in the state. While some areas can be higher than others on a state and federal level, the overall average of housing costs are less expensive. Planning to purchase a home or already own one in Pittsburg? We offer a full range of garage door styles, repair, and services for our Pittsburg customers from traditional to modern styles.