They’ll use more electricity than the average upright vacuum, but not remarkably more. Most power units plug into a standard 120-volt outlet and don’t have significant power demands. You shouldn’t notice an increase in electricity bills. If you have any specific questions about energy costs, ask your installer as you examine purchase decisions. Larger power units will need more electricity for their suction levels.

For the average-size house, a central vacuum installation usually takes one day of work by a team of professionals. Large houses may take two or more days. But if you are planning on a DIY project, it’s likely to take much longer. We suggest getting a few estimates for a project this big and fully understanding all the requirements before you make a decision about installation. Certain parts of your house may not be usable during the installation, and you may want to make other plans.

The cost to install a central vacuum cleaner system averages about $1,600, ranging from $1,100 to $2,200, depending on the size of the system, add-on features, your home’s location, and age of the system. Accessibility to running lines and other equipment can also impact the project cost. Consult a central vacuum cleaner installation company for an accurate estimate of your installation cost.

Experienced professionals don’t usually need to take down drywall to install the central vacuum. They are experienced in working in the tight spaces between walls and in crawl spaces to minimize any damage. The only drywall changes should be the holes cut for the new outlets. However, home design, existing plumbing, and other factors may require some modification. An estimate from a professional contractor should include information if any changes need to be made.