Replacing Water Valve Under Sink

Actual costs will depend on job size conditions and options.

Replacing water valve under sink.

Deburr the pipe with a deburring tool. If this happens to you you can simply replace the valve with a new valve that matches the old one. Turn off the next valve up the line which may be the main water supply valve. I am replacing the faucet in my kitchen.

These inexpensive little valves rarely get used and when they do sometimes they leak. Replacing a shut off valve compression valve or angle stop may seem like a daunting task but it really takes less than 5 minutes. Cut the supply line with a pipe cutter leaving enough room between the escutcheon plate and the cut to allow installation of the valve fitting. The hot and cold water supply under the sink is turned off at the valves.

Check the new valves for leaks. Turn the water heater gas valve back to on or flip on the circuit breakers to the electric water heater. Open the faucet to drain the line. My water supply valve under the kitchen sink leaks.

Close the new valve. Then shut off the upper and lower faucets. Then open the water main shutoff valve and let the water run until all the air is out of the pipes. The water to a kitchen or bathroom sink is supplied through small copper or flexible neoprene tubes from a small control valve called a stop or shut off valve under the sink.

Place a bucket under the old valve. Learn how easy it is. For a basic project in zip code 47474 with 6 valves the cost to install a water shut off valve starts at 153 183 per valve. I have the faucet installed in the sink but not connected to the hot and cold water.

When cutting the supply line cut slowly and gently so. The cold water supply line from the wall is dripping water slowly. With a few household tool.