You’ve just bought a new washing machine—or maybe you’re moving into a new place with an empty laundry hook-up. Now comes the big question: how easy is it to plumb in a washing machine? If you’re nervous about leaks, confusing hoses, or calling a plumber for something “simple,” you’re not alone. The good news? With basic tools and a little guidance, most homeowners can handle this themselves—safely and correctly. Let’s walk through exactly what it takes.
What Does “Plumbing In a Washing Machine” Actually Mean?
“Plumbing in” a washing machine refers to connecting it to your home’s water supply (hot and/or cold), drain system, and ensuring it sits level and stable. Unlike built-in dishwashers that often require permanent plumbing, most standalone washers use flexible hoses and a standard drain outlet—making installation surprisingly straightforward.
According to the U.S. Department of Energy, over 70% of American households own a washing machine, and many install or relocate them without professional help. That said, proper installation prevents water damage—a leading cause of homeowner insurance claims (source).
Do You Need a Plumber to Install a Washing Machine?
Short answer: Not usually.
Most modern washing machines are designed for DIY-friendly setup. You’ll need:
A nearby cold water shutoff valve (some models also use hot water)
A drain standpipe or utility sink
A standard 120V grounded electrical outlet
If these already exist in your laundry area (common in U.S. homes built after 1980), you likely won’t need a plumber. However, if you’re installing in a basement, garage, or new location without existing hookups, you may need professional help to run new lines—which involves cutting into walls or floors.
💡 Pro Tip: Always check local building codes. Some municipalities require permits or licensed plumbers for new water line installations.
Tools & Materials You’ll Need
Before you start, gather these essentials:
Item
Purpose
Adjustable wrench
Tighten hose connections
Bucket & towels
Catch residual water during disconnection
Level
Ensure machine doesn’t vibrate excessively
Teflon tape (optional)
Seal threaded fittings (not always needed)
New inlet hoses (recommended)
Old hoses can crack—replace every 5 years
Safety first: Turn off the water supply and unplug any old machine before starting.
Step-by-Step Guide: How to Plum In a Washing Machine
Follow these 6 clear steps—even if you’ve never held a wrench before.
Step 1: Prepare the Space
Clear the area behind where the washer will sit.
Ensure the floor is clean, dry, and level. Uneven floors cause vibration and noise.
Confirm your drain pipe is 18–30 inches above the floor (per plumbing code) to prevent siphoning.
Step 2: Attach Inlet Hoses
Connect the cold water hose (usually blue) to the cold valve on the wall.
If your model uses hot water, attach the red hose to the hot valve.
Hand-tighten first, then give a quarter-turn with a wrench—do not overtighten, as this can crack fittings.
⚠️ Warning: Never reuse old rubber hoses. According to the Insurance Institute for Business & Home Safety, faulty hoses cause 20% of washing machine-related floods. Use stainless-steel braided hoses—they last longer and resist bursting.
Step 3: Connect the Drain Hose
Slide the drain hose into the standpipe (the vertical pipe in the wall) or over the edge of a utility sink.
Secure it with a plastic clip if provided—never seal it airtight. The drain needs airflow to function properly (this is called an air gap, required by plumbing codes).
Step 4: Level the Machine
Place a level on top of the washer.
Adjust the front feet by turning them clockwise or counterclockwise until the bubble is centered.
Rock the machine gently—it shouldn’t wobble.
Step 5: Test for Leaks
Turn on the water valves slowly.
Run a quick rinse cycle.
Check all connections for drips. A few drops? Tighten slightly. A steady stream? Shut off water and recheck.
Step 6: Push Into Place & Plug In
Slide the washer back carefully—don’t kink hoses.
Plug into a grounded outlet (no extension cords!).
✅ Done! Your machine is plumbed in and ready to go.
Common Mistakes to Avoid
Even experienced DIYers slip up. Here’s what not to do:
❌ Ignoring the drain height: Too low = siphoning; too high = pump strain.
❌ Using tape on hose connectors: Most modern fittings are compression-style—tape can interfere.
❌ Skipping the leveling step: Causes loud banging during spin cycles.
❌ Forgetting to remove shipping bolts: These secure the drum during transit—must be removed before first use (check your manual).
When Should You Call a Professional?
While most installations are DIY-friendly, call a plumber or appliance technician if:
There’s no existing water shutoff valve near the laundry area.
You smell sewer gas (indicates a broken P-trap in the drain).
Your floor is concrete and you need to install new plumbing lines.
You’re unsure about electrical grounding or GFCI requirements.
The average cost for professional installation ranges from $75 to $180, according to HomeAdvisor (2025 data)—but it’s worth it for peace of mind if you’re uncertain.
Pros vs. Cons of DIY Installation
Pros
Cons
Saves $100+ on labor
Risk of leaks if done incorrectly
Can be completed in under 30 minutes
Requires basic tool knowledge
Empowering and educational
May void warranty if done improperly (rare, but check manual)
Most major brands (Whirlpool, LG, Samsung) explicitly state in their manuals that DIY installation is acceptable as long as instructions are followed.
A: For a first-timer with all hookups in place, it typically takes 20–40 minutes. Professionals can do it in under 15.
Q2: Can I use only a cold water connection?
A: Yes! Most modern detergents are formulated for cold water, and many machines heat water internally if needed. Using only cold saves energy and reduces plumbing complexity.
Q3: What’s the correct height for a washing machine drain pipe?
A: The top of the standpipe should be 18 to 30 inches above the floor, and the P-trap must be 6–18 inches above the floor. This prevents sewer gases from entering your home and avoids siphoning. Learn more about plumbing vents on Wikipedia.
Q4: Do I need special hoses?
A: Stainless-steel braided hoses are highly recommended. They cost ~$15–$25 and significantly reduce burst risk compared to rubber hoses.
Q5: My washing machine won’t drain—did I plumb it wrong?
A: Possibly. Common causes include a kinked drain hose, clogged filter, or drain pipe that’s too high. Double-check your setup against the manual.
Q6: Can I install a washer in my kitchen or bathroom?
A: Yes, if local codes allow it and you have proper drainage and ventilation. Many European-style combo units are designed for this—but always verify with your HOA or landlord first.
Conclusion
So, how easy is it to plumb in a washing machine? For most U.S. homeowners with existing laundry hookups, it’s a simple, safe, and satisfying DIY project that takes less than an hour. By following these steps, using quality parts, and double-checking connections, you’ll avoid costly water damage and enjoy clean clothes in no time.
If you found this guide helpful, share it with a friend who’s setting up their first washer—or pin it for later! Got questions? Drop them in the comments below. Happy laundering! 🧺💧
Leave a Reply