How to Install a Utility Sink in Garage?

Using the right utility sink in garage instead of installing it in your house’s HVAC, you can make better energy savings.

Experience in plumbing is necessary when working with these sinks. Moreover, you will also need drains with hot and cold water to serve your faucets and drains for which the wastewater is taken away.

For preparing for installation, you may need some plumbing expertise to set these utility sinks properly to meet your needs. Utility taps that include a cold and hot water supply are also needed for carrying your garage wastewater. You’ll also need a wastewater line for this project. Another advantage of using a utility sink next to the washer is that it is easier to install. Now, you may ask how to install a utility sink in garage. Now, knowing different techniques about that keeps reading the content.

Table of Contents

  • Install Utility Sink in Garage [3 Phases]
    • Phase-1: Connecting the Drain and Vent Pipes
    • Phase-2: Setting up the Water Supply Lines
    • Phase-3: Installing the Sink
  • Cost to Install Utility Sink in Garage

Install Utility Sink in Garage [3 Phases]

Do you know how to drain utility sink in garage? Here, I have mentioned three different methods for doing that.

Phase-1: Connecting the Drain and Vent Pipes

Tools and Materials required in this phase

  • Rubber tubing
  • Crescent wrench
  • Compression fittings
  • Compression couplings
  • Copper clips

Make sure that the main valve is turned off before you begin your job.

7 Steps involved in 1st Phase

Step-1: Turn the water supply valve to shut off the water supply

You need to determine the location of the building’s primary water source. It will be inside or outside the house concerning the water service. You can found it near the water heater, often close to the taps. To prevent the water from flowing, rotate the valve clockwise.

If there are supply valves in the room, you can switch them off. There can only a water pipe that reaches all the places, and you should not always keep them on.

Step-2: Cut through the drainpipe with a hacksaw

Decide where you want to install the sink, and look for the pipe to route the drain. Where would you have the sink? It’ll go either on the floor or the ceiling, whichever is lower. Cut the tubing with a hacksaw.

On which pipe the water flows, refer to the blueprint. This takes time. The drainpipe runs to the septic tank from the house.

Go to a hardware store that sells sewage pumps and get a submersible model if you want to get one installed in your basement.

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Step-3: Spread PVC cement over a wye fitting

When you are finished shopping, go to a home improvement store and purchase a wye fitting. This PVC pipe connects three pipes with a “Y”. Use a PVC brush to remove hair or grease around the drains. Then fit PVC pipe to the wye end.

If the drainpipe is made of cast iron, it’s easier to buy a rubber elbow and have it connected by guttering or soldering instead of gluing the elbows together.

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Step-4: Slide the wye fitting over the drain pipe’s ends

You must grab the pipe on one side and ease it away from the other end. To place the wye on the pipe, attach the pipe’s opposite end to the remainder of the pipe. Let the glue sit for four seconds to get a good bond.

Try to align the wye fitting so that the small opening faces the location of your sink.

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Step-5: Saw through the vent pipe

Now, you may divide the drainpipe in half. It will rise to the ceiling, but it will fall to the roof if you touch it. Find an area near the ceiling and above the pipe’s wye fittings on the hook. Cut the conduit pipe with the hacksaw.

The sewage vent pipe assists the drainage and safeguards against sewer gas infiltration.

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Step-6: Install a wye fitting in the vent pipe

After assembling the second wye fitting, coat it with a sealant, allow it to sit, and allow the joints to dry, called priming the vent. Slide the connecting link to the pipes and reinstall the bits. As recommended, the wye must be opened slightly toward the smaller fitting.

Step-7: Connect the wye fittings with PVC pipe

Then, you have to connect the T-fitting to the lower wye connector. The source should face the larger pipe, and the lower pipe should be aimed at the higher wye. Next, use PVC pipes to connect the 2 points.

Be sure to attach the sump and drain pipe according to the installation instructions in the owner’s manual.

Phase-2: Setting up the Water Supply Lines

Tools and Materials required in this phase

  • PVC pipe
  • Plumber’s putty
  • Y PVC pipe fitting
  • Large wrench
  • Drain assembly

6 Steps involved in 2nd Phase

Step-1: Saw through the water supply lines

Firstly, you have to identify the water supply lines either on the wall or under the floor. Water flows from two faucets, one cooler and another hotter. Cut the electricity to both pipes with one clean stroke with the hacksaw.

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Step-2: Clean the pipe ends and coat them with flux

Aid the outside pipe edge with 120-grained sandpaper. They will shine once you have finished the task. Next, using a fine-tip brush, paint the copper with flux.

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Step-3: Install copper tee fittings on the pipes

You may also get a need to get your hands on a pair of copper hose fittings from a home supply shop. Both tees must be fluxed, and then they are slid into the openings to leave a door open so that the sink can have access to it.

Step-4: Solder the copper pipes together with a propane torch

Then you may place a small amount of lead-free solder on one of the joints. With the solder, tilt the torch until the flame points towards the end of the object you’re soldering. If you’ve done it correctly, the solder will be molten. Apply gentle but even heat to the joint to melt the solder. For any other tubing, repeat this procedure.

Step-5: Drill holes into the wall for wall anchors

You have to measure approximately one-third of the wall for making a hole into the wall. Drive a masonry drill bit into each shaft, and drill a hole through the wall. Place the anchors smaller than the opening of the hole rather than the width of the anchors.

If you decide on using a hammer and nail, you can also drill the holes into the wall.

Related: How to Cut a Trench in a Concrete Slab?

Step-6: Screw the anchors to the wall

Assemble the anchor, inserting the screw into the pilot hole. Then tighten it against the wall with a cordless screwdriver. Installing the pipes can take a bit of gentle persuasion, but having them anchored will ensure a tight seal.

Phase-3: Installing the Sink

Tools and Materials required in this phase

  • Utility sink
  • Plywood or any other wood
  • Handsaw
  • Nails
  • Silicone sealant
  • Level

7 Steps involved in 3rd Phase

Step-1: Move the sink near the pipes

Do you know where the best place to install a utility sink in garage is?

Before installing the sink, it is important to put it in position. Utility sinks are normally are not attached to the wall so that you won’t need additional mounting. Then place the faucets about 6-10 feet away from the wall. Don’t look for ways to make the sink’s legs appear flat if the floor is uneven.

Step-2: Secure the drain strainer in place with the plumber’s putty

To make it easier:

  1. Roll some putty in your hands.
  2. Submerge the putty under the strainer.
  3. Strain the mixture via the strainer.
  4. Rotate the strainer’s nut with a wrench clockwise.

With your finger, wipe away any putty that comes out of the drain.

Step-3: Set the sink’s tailpiece in a P-trap

Then, use a pair of pliers to turn the wrench counterclockwise to tighten the P-trap. If the large nut is loosened, remove the threaded flange and then slip the pieces onto the sink’s waste strainer. Then secure the tap by tightening the tail bit.

Step-4: Connect the P-trap to the drainpipe with PVC pipe

You’ll need a 6.4 cm pipe. You would also have to put in some new O-rings or elastics to get to the bottom drain plug. You may use a flexible plastic ring-shaped compression nut and a pair of pliers to secure the tubes in place.

Step-5: Secure the faucet to the sink with plumber’s putty

Then use the putty under the faucet and position it near the feet of the tap. Set the faucet in the sink, and then press the handles down to make sure they are firmly attached. You can use a wet tissue to wipe off any excess glue. When the faucet is sitting on the drain, install washers underneath it and then tighten the nuts.

Step-6: Connect the faucet to the supply pipes with flexible supply lines

You’ll need a pair of supply hoses with flexible braiding or woven stainless steel wire. Make a pipe run of conductors to the tee fittings. Please don’t twist the nuts with pliers; run the lines through the faucet for good measure and give them a final twist with a hammer.

Step-7: Turn the water on to get the sink working

Recheck the water valve, then turn the valve on. It should be possible to heat and cool the sink simultaneously. Moreover, you would see water could easily run through it.

Related: How to Remove a Tub Spout That’s Stuck?

Cost to Install Utility Sink in Garage

On average, the installation of a utility sink costs between $40 and $200. Thus installing a $100 sink adds $200 to the bill. Similarly, the cost of having your plumbing installed can range from $50 to $100 and up. A plumber can charge around $200 to install a utility sink.

These charges do not include additional fees for additional options. If there are no drain or vent pipes in operation, extra expenditures would have to be spent on their installation, as if a plumber undertakes the work.

In certain instances, installation costs can run $500-1000, depending on the features you choose to include.

Plumber rates can also vary due to whether or not an existing utility sink or ventilation system needs to be installed. Before you begin work, always ask the bill as soon as possible and ask them for a price estimate. 

Final Words

A new sink installation can be challenging but not impossible. Patience is required; also, you need to use the right resources. Incorporation can be simple when you have the proper tools and methods. If properly maintained, the sink will sit tight for many years. Once all the connections are established, you can test the entire faucet. There may be any number of holes or links leaking, which must be tightened up before the water is turned off.

I hope that you would better understand how to set up a utility sink in a garage by reading this content.

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