I'm working on a large housing development and there is a question about how much it would cost to replace all the equipment for a 100 sqft electrical room. The development is a single large two story building at about 40,000 square foot. I'm not an electrician and I cannot find anything about a general cost for an electrical room because everything is considered in components and systems not total cost.
Todd J. ~ Gendale, California
There is no rule of thumb when it comes to large electrical rooms and a per square foot cost. When you are estimating the cost for electrical work, especially for a 40,000 square foot development, it is imperative that you have an approved electrical plan. There are literally hundreds of ways that a room like this could be configured, and any one way could cost $5000 more than the next. In a 100 square foot room, this is a $50 per square foot difference; this is a huge difference in cost. Without an electrical plan that shows everything that the building is going to require in the electrical room, even a ballpark figure is impossible to provide. I would suggest getting a licensed electrician to the job and have them look at the existing electrical hardware and look at what needs to be done. This is going to be the best way to get a realistic cost estimate for the electrical work that needs to be done.