Dear Mr. Electrician: How do I install an electrical receptacle outlet on the ceiling of my garage for an electric garage door opener.? I do not have access to the ceiling from above as there is a bedroom located over the garage. Any suggestions on how I may proceed with this?
Answer: In a few garages where there was already an electrical receptacle installed on the wall, I was able to install Wiremold #500 surface metal raceway to bring power to a ceiling outlet. Below are some photos of a Wiremold installation that was used to replace an old extension cord that was powering the garage door opener. NOTE: Text links below go to applicable products on Amazon.com
Installing Wiremold for a Garage Door Opener
Connecting to an existing electrical receptacle outlet is easy with the correct Wiremold parts. Although home centers and hardware stores carry some Wiremold products on their shelves, electrical supply companies will have the largest selection of Wiremold fittings. They usually have a catalog that you can identify parts from. Because of the wide selection of Wiremold products, it is best to order Wiremold fittings using the catalog part numbers.
Steel Wiremold raceway is very durable and can be painted. The Wiremold conduit is an approved grounding conductor, however I always install a grounding conductor.
Some areas of the country require that garage ceiling electrical receptacle outlets be GFCI protected. The GFCI protector must be accessible while you are standing on the floor so that it can be tested monthly.
There are many other types of electrical conduit.