When this method is used, a fixed asset is depreciated by the same amount each year. When using the straight-line method, you must specify one of the following options in the FA depreciation book: 1  The depreciation period (years or months) or a depreciation ending date.
Assuming the house has wood siding and there's an electrical line already in the bathroom, an electrician will charge $268 to install an exhaust fan, which includes the labor and material. You can buy the fan for $90 and install it, saving 66 percent. DIY Hassle Alert.
It depends on how handy you are. It will cost $200 to $400 for an electrician/handyman to install a bathroom fan. Where you fall on the cost spectrum will depend mostly on location of the fan in the home and how difficult it will be to set up exhaust vent. The more complicated that is the more it will cost. Â© 2015 CostOwl.com.