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Question DetailsAsked on 6/24/2014

How much should a doorbell replacement cost (electrical wiring)

I have an existing doorbell that stopped working for whatever reason. I wanted to know the median cost of replacing an existing doorbell if the worst case scenario is replacing wiring.

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1 Answer


Normal service call charge of typically $75-150 plus not more than about $30 parts should cover it if the problem is either doorbell, button, or transformer.

However, if fault is wiring mid-line, that cost is widely variable because the line from transformer to button to doorbell commonly takes circuitous routes and is commonly stapled in place so cannot be used to pull new wiring through - so worst case you can end up with several holes in drywall and about $200 electrician bill, plus drywall repair and painting required so worst case can be $400-500, or even more if fancy wall/ceiling treatments. Therefore, if doorbell wiring changeout is required, these days one normally either goes with surface conduit for most of the wiring (like under stairs) or with wireless doorbell.

Now the good news - occasionally is because transformer went out, rarely doorbell, very commonly button - I have never seen wiring fail in mid-run unless someone drove a nail into it doing flooring or wall work.

My recommendation - get a new doorbell of the right shape and size - no smaller or you will probbly have unpainted wall showing around it - $3-7 depending on if has a built-in light in the button. Unless your button had a little "night light" over it, should be 2-wire button with just 2 screws in the back for the wires, regardless of whether has an illuminated button or not. Then turn off breaker to the doorbell, remove the doorbell button (usually just 2 tiny screws at the ends or side), turn over (may not have a lot of slack) - will have 2 wires to the back, almost always held down just by two screws. If one wireis broken or loose, may just need stripping insulation and rehooking under screw. Undo screws, screw to new button, and mount button on wall with fasteners provided, turn power back on. Normally makes no diff which wire goes where, but if a black or brass screw and a white or silver one, black wire goes to black or brass screw, white wire to silver or white screw. Probably about 80-90% chance that button was the problem - they go out first because exposed to the elements.

PS - when messing with the wires, unless there is a lot of slack wire temporarily put tape around the wires with a tail hanging off so they cannot slip through the hole in the wall - you do NOT want to lose the wires in the wall. Sometimes there is not a lot of slack and they want to slip into the wall if let go.

Answered 6 years ago by LCD

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