By Gene and Katie Hamilton
A faucet may seem like a small part of a bathroom, but it actually can go a long way to update a vanity or sink. If you have an old single-handle faucet, you can replace it with a new one designed specifically for do-it-yourselfers. There is a nice array of finishes in single-handle faucets, so you'll be able to find one that matches your bathroom accessories.
Faucets designed with the DIYer in mind are easy to install because you do most of the work above the countertop - so you don't have to lay on your back with your head in a dark cabinet trying to see what you're doing. Faucet manufacturers have figured out a way to pre-assemble the unit, eliminating the daunting task of making all the parts fit together. You have to empty the cabinet (it probably needs a good cleaning, anyway) so you can reach inside to hold the faucet while you tighten it. For tools, the bare minimum is required, just an adjustable wrench and a screwdriver. While you're taking the faucet apart, cover the drain with a cloth and be careful not to drop the screws down it. To protect the finish of a new faucet, wrap tape around the jaws of your wrench or pliers so you don't cause damage while tightening it.
A plumber will charge $330 to remove an old single-control faucet and replace it with a top quality new one, which includes the labor and material; but you can buy a new one for $125 and install it yourself, saving 62 percent. The replacement gets more complicated and expensive if the existing faucet is very old or has two handles, which usually requires a different type of faucet.
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Watch this video from Lowes
Replace a Bathroom Sink Faucet.
Tip: Don't forget to turn off the water supply lines under the sink before you begin this or any faucet project.
That sums it up. Knowing the average cost to replace a bathroom faucet lets you compare doing it yourself with what you can expect to pay a contractor. To customize the cost to where you live add your ZIP Code in the cost box.
Improvement and Repair Cost Updated 2020