On the first floor run wires up the wall from the basement.
Run wire from basement to garagae attic.
If you have access to your basement crawl space and attic you should be able to run wires without having to cut patch any drywall.
To add lights and outlets you could spend days crawling around your attic and snaking wire through walls.
The staple gun should be loaded with wire staples designed for holding the size and type of wire you are running.
Go outside and lay the cable into the trench running it all the way to the garage.
I recently installed a motion sensored security light in the back of my house.
Rigid conduit with an outside diameter of 3 4 in and a fish tape long enough to reach through the buried pipe.
Go outside and lay the cable into the trench running it all the way to the garage.
At the garage repeat steps 3 through 7 to install the plastic conduit and cable.
Running wire from attic to basement.
But running wire through pvc conduit mounted on walls and ceilings makes the job faster and a whole lot less frustrating.
My home was built in 1941.
Secure the cable to the overhead joists with cable staples.
My plan is to create a run from my main panel in my basement to the detached garage.
To run the wires inside rigid conduit you ll need a hacksaw a pipe bender capable of bending 1 2 in.
The total length of the run is about 80 feet.
I replaced an old flood.
From inside the basement pull the cable all the way to the main electrical panel.
On the second floor run wires down the wall from the attic.
At home centers you ll find a variety of pvc fittings that let you turn corners and run the conduit exactly where.
You can get different sizes of pvc and you can run 2 3 lines in one run.
I would like to have 2 15 amp circuits and 2 20 amp circuits in the garage.
While one person holds the flashlight the other person should use a staple gun to run the wire along the rafters from one entry hole to the other.
Bring all of the wire up into the attic.
Secure the cable to the overhead joists with cable staples.
It seems no matter what you will have to open a couple walls but might not be as bad as you think.
When necessary use existing ducts or pipe runs to get wires from the attic into the basement.