The short answer
Check the Washing Machine First
Look behind and underneath the washer for puddles or drips. The supply hoses that bring water in are a common failure point, especially if they are old or kinked. Feel the connections where the hoses attach to the machine and the wall for any moisture.
The drain hose can also leak where it connects to the standpipe or the laundry sink. Pull the machine out carefully to inspect the floor and the back panel. If you spot a slow drip, tighten the fittings or replace the hose. A small leak can turn into a bigger problem if you ignore it.
Look for Plumbing Leaks in the Walls
If the floor is wet near the baseboard or in a corner, the leak might be inside the wall. Pipes that supply hot and cold water to the laundry area can develop pinhole leaks or burst, especially in cold weather. Check the wall behind the washer for damp drywall or staining.
Also check the ceiling below if your laundry room is on an upper floor. A leak from a pipe above could be dripping down. If you suspect a hidden leak, you might need a professional with leak detection equipment to find it without tearing open walls.
- Damp drywall or peeling paint on the wall
- Water stains on the ceiling below
- Musty smell coming from the wall
- Warm spots on the floor that stay wet
- Unexplained increase in your water bill
Inspect the Floor Drain and Sink
Many laundry rooms have a floor drain or a utility sink. Check the drain cover for clogs or standing water. A blocked drain can cause water to back up and spill onto the floor. Clean out any lint or debris that might be blocking the flow.
If you have a utility sink, check the drain pipe and the trap underneath. Leaks at these joints are common and easy to fix with a wrench. Run water into the sink and watch for drips below. Tighten any loose connections or replace worn washers.
Dry the Area Quickly
Once you find the source, act quickly to dry the floor and any wet materials. Standing water can soak into wood, drywall, and insulation, leading to swelling, warping, and mold growth. Use towels, a mop, or a wet vacuum to remove as much water as you can.
Set up fans and open windows to improve air circulation. If the leak is large or the moisture has soaked into walls or under flooring, you may need professional drying equipment. The pros use dehumidifiers and air movers to dry out hidden spaces and prevent secondary damage.
Know When to Call the Pros
If the leak is from a burst pipe, a sewage backup, or water that has soaked into the subfloor, you might need more than a mop. Water damage can weaken structural materials and create a breeding ground for mold. The pros can extract water, map moisture levels, and dry out the structure.
They can also remove and replace damaged flooring or insulation. Keep your shutoff valve location written down so you can stop the water fast in an emergency. Acting quickly can reduce the extent of the damage and the cost of repairs. Policies vary, and your insurer decides what is covered.
- Water has soaked into the subfloor
- Drywall is swollen or crumbling
- You notice a persistent musty odor
- The leak source is not obvious
- Water has spread to other rooms
- You suspect mold is already growing
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Call Now (801) 383-0232Frequently asked questions
How do I find a slow leak in my laundry room?
Inspect the supply hoses, drain hose, and connections for any moisture or drips. Run a cycle and watch for water on the floor. Check the wall behind the washer for dampness. If you cannot find it, a water damage pro can use leak detection tools.
Can a wet floor cause mold?
Yes, mold can start growing within 24 to 48 hours on wet materials like wood, drywall, and carpet. Dry the area thoroughly and quickly. If you see mold or smell a musty odor, contact a mold professional to assess and remove it safely.
Should I turn off the water supply to my washer?
Yes, if you suspect a leak, turn off the shutoff valves behind the washer. This stops the water flow and prevents further damage. If you cannot find the valves, shut off the main water valve to your home. Check your policy for coverage details.