Thinking about installing a new washing machine but unsure about the plumbing costs? You’re not alone. Many homeowners ask, “How much does it cost to plumb a washing machine?”—especially when moving into a new home, upgrading appliances, or setting up a laundry room from scratch. Whether you’re a DIYer or planning to hire a pro, this guide breaks down real-world costs, timelines, and what factors can affect your final bill. Let’s get your laundry flowing—without draining your wallet.
What Does “Plumbing a Washing Machine” Actually Mean?
Before diving into costs, it’s important to understand what plumbing a washing machine entails. Essentially, it involves connecting your washer to three key systems:
Cold water supply line (some models also need hot water)
Drain line (to remove wastewater)
Electrical outlet (though not plumbing, it’s often part of the full install)
If these connections already exist in your laundry area, installation is straightforward. But if you’re adding a washer in a new location—like a garage, basement, or kitchen—you may need new pipes, valves, and drainage, which increases cost and complexity.
According to HomeAdvisor (2024 data), 68% of washing machine plumbing jobs are simple hookups, while 32% require new plumbing infrastructure.
💡 Pro Tip: Labor typically costs $75–$150/hour for a licensed plumber. Always get 2–3 quotes before hiring.
What Factors Affect the Cost?
Several variables can significantly change your total expense:
1. Existing Plumbing Infrastructure
If your laundry area already has:
Shut-off valves
A standpipe or laundry sink
Proper electrical outlet
…you’re in luck! Hookup-only jobs are fast and affordable.
2. Location of Installation
Installing in a basement or garage often requires:
Running new PEX or copper water lines
Installing a drain pump (if below sewer level)
Adding a GFCI outlet
These add-ons can easily double your cost.
3. Type of Washing Machine
Front-loaders often need hot and cold water lines, while some compact or portable units only require cold water. Confirm your model’s specs before planning.
4. Permits and Code Compliance
In some cities (e.g., Chicago, Los Angeles), plumbing work requires a permit ($50–$150). Skipping this risks fines or failed home inspections later.
5. Emergency or Weekend Service
Need it done ASAP? After-hours or weekend plumbing can cost 20–50% more.
Attach hot/cold hoses to washer (hand-tight + ¼ turn with wrench).
Connect hoses to wall valves—use Teflon tape on threads.
Insert drain hose into standpipe (min. 30” height, max. 96”).
Level the machine using adjustable feet.
Run a test cycle—check for leaks!
⚠️ Warning: DIY mistakes can cause flooding. The Insurance Information Institute reports that water damage from appliances causes over $13 billion in losses annually in the U.S.
👷 Hire a Pro (Cost: $150–$600)
Worth it if:
You’re installing in a new location
Local codes require licensed work
You lack tools or confidence
Professionals also offer warranties—many cover labor for 30–90 days.
Hidden Costs to Watch Out For
Don’t get surprised by these common add-ons:
Shut-off valve replacement: $50–$100 (old valves often leak)
Drain pump installation: $200–$400 (needed if drain is below sewer line)
Floor reinforcement: $100+ (for heavy front-loaders on weak subfloors)
Water hammer arrestors: $75 (reduce pipe noise—required in some areas)
Always ask for a line-item estimate before work begins.
How to Save Money Without Sacrificing Safety
Bundle services: Installing a washer and dryer together? Many plumbers offer discounts.
Buy your own parts: Supply your own hoses and valves (but confirm compatibility).
Schedule during off-peak times: Mid-week appointments are often cheaper.
Check appliance store deals: Retailers like Home Depot or Lowe’s include free basic installation with purchase (read the fine print!).
FAQ: Your Top Questions Answered
Q: Can I install a washing machine without a plumber?
A: Yes—if you have existing plumbing and basic DIY skills. However, if new pipes or drains are needed, hire a licensed plumber to avoid code violations and water damage.
Q: How long does it take to plumb a washing machine?
A: A standard hookup takes 1–2 hours. New installations in unconventional spaces may take half a day.
Q: Do I need both hot and cold water lines?
A: Most modern washers only require a cold water line—they heat water internally. Check your manual. If you have an older model, you may need both.
Q: What’s the #1 cause of washing machine leaks?
A: Faulty or worn hoses. Replace rubber hoses every 5 years; stainless steel braided hoses last longer and are less prone to bursting.
Q: Can I use a garden hose for my washing machine?
A: No. Garden hoses aren’t rated for constant water pressure and can burst. Always use UL-listed washing machine hoses.
Q: Is plumbing a washing machine covered by home insurance?
A: Only if installed to code by a licensed professional. DIY errors that cause flooding may void your claim.
Final Thoughts: Smart Plumbing = Peace of Mind
Understanding how much it costs to plumb a washing machine helps you budget wisely and avoid costly surprises. Whether you go the DIY route or hire a pro, prioritize safety, code compliance, and quality parts. A properly installed washer not only works better—it protects your home from one of the most common (and expensive) household disasters: water damage.
📌 Found this guide helpful? Share it with a friend who’s setting up their laundry room! 💬 Have a plumbing question? Drop it in the comments below—we’ll help you out!
Leave a Reply