The photo shows one way to do this for an exterior light mounted on wood.
Ceiling light junction box loose.
Slip the hanger bar into the ceiling opening and hand twist the bar until the ends touch the ceiling joists.
We use an old work electrical box to replace a damaged or loose.
Boxes brackets 5in round electrical box 12 x12 x6 box how doers get more done need help.
Also the ceiling flexes upwards in this area when i push on it.
Amazon link to great products that every diyer and handyman should know about.
Repair a broken plastic electrical box mounted in a ceiling or wall this article describes how to repair a ceiling light fixture electrical box that was falling out of the ceiling.
The box is hanging down at an angle.
1 gang box ceiling fan mounting box recessed boxes brackets 3 4 in.
Broken plastic electrical box swing clamp supports allowed the box to fall from the ceiling leaving the light fixture hanging by its electrical wires.
Junction boxes or a j box protect the connections from accidental damage and contain sparks and heat from a loose connection or short circuit.
I opened the box and found that one side of it is secured to what i hope is a cross brace.
Electrical boxes are plastic or metal boxes placed inside walls and ceilings wherever a fan light fixture electrical outlet or light switch is located.
Add a box where connections aren t contained in an electrical box install a box and reconnect the wires inside it.
Continue turning the bar clockwise with an adjustable wrench until the bar no longer turns.
Loose and unsecured electrical ceiling boxes can damage the electrical wiring or the connections inside the box.
Install a remodel ceiling fan box for fans and light fixtures that weigh up to 70 pounds.
This video provides a more effective way to remove plastic junction boxes without damaging your dry wall.
How to fix a loose electrical ceiling box.
This is a great series that will show you how to secure a loose electrical box.
I have a ceiling light which is held up by am electrical box.
Loose connections or damaged wires can also damage the fixture short the circuit or cause an electrical fire.