Certainly, laundry rooms must have a dryer and washer, proper venting, adequate electrical wiring, bright lighting, and drainage.
It is also great to add a utility sink which allows you to first wash out very dirty items before they go into the washer.
If there’s sufficient space for a sink and proper drainage and supply of water can be accessed, then a utility sink can be installed.
Here is how you can do it yourself.
Laundry Room Sink Codes
Extending, rerouting, or even replacing the supply lines for cold and hot water in your home, in addition to drainage, may require permits or other actions that are code-related.
Shut off the mainline supplying water into your home.
Before the wall is opened, switch off circuit breakers that control any electrical wires that may be running through the wall.
Check Your Layout
Your utility sink placement not only depends on where you prefer it but where it fits best.
Considering logistics, your utility sink ought to be positioned near the work areas.
The sink is best positioned closer to the washer as it provides cold and hot water as well as drainage.
Take Out the Drywall
If the wall at the back of the dryer and washer is covered by drywall to hide plumbing connections, then major parts of the drywall need to be removed. There’s no need to remove the entire drywall.
Use a stud finder to identify the location of the studs that extend from the water supply and drain points to where you want to position your utility sink.
Use a utility knife to cut through the drywall tape that joins full drywall sheets together.
Take out the drywall sheet by turning the screws and prying the sheet back.
Drill the Studs
Drill two holes within each of the studs that lead to the intending sink location
Hammer metal protector plates into each stud to cover the front of the holes.
Access the Supply Lines
Use a copper pipe cutter to cut the cold and hot water supply lines of the washer.
Clean off the copper pipe burrs and attach a tee on both lines, then run two PEX pipes through the stud holes to the sink position.
Replace both hot and cold severed lines on top of the tees after the burrs have been sanded off the pipes.
Access the Standpipe of the Drain Line
Depending on the setup of the drain line of your washer, you may gain access to your drain line using a waste Y-fitting and connect a PVC line to the sink position.
Otherwise, your local code will likely permit you to use the sink drain line for both washer and sink.
The drain hose of the washer is then connected over the sink wall.
Water expelled from the washer flows back into the standpipe through the sink.
Fix the Copper Stub Outs
Connect the water supply lines (cold and hot) to the copper stub outs.
Direct the pipes at an angle of 90 degrees using bend supports.
Nail the pipes to the stud sides with fasteners.
Square the pipes using speed squares and make sure they directly extend from the wall.
Fix the Utility Tub
Position the utility tub upside down and attach its legs to the base of the tub basin.
Most freestanding utility tub brands require no extra fixtures, only the legs to be tapped into place.
Add the leveling feet as included. Position the tub properly and use a laser level or bubble level to adjust the basin.
Attach the Laundry Room Sink Faucet
Fix the trap of the drain underneath the sink and connect it to the drain line.
Fix the faucet on both stub outs. Turn on the water and run the water to test the connections.
Fix the Drywall
Fix your drywall after any needed plumbing checks. Ensure to leave cutouts at all of the plumbing access points.
When Do You Need a Professional?
If you do not have the skills and do not wish to learn, such as working with copper and PEX pipes to install fixtures, then you should get a qualified plumber to handle your utility sink installation.