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Ultimate Washer Dryer Installation Checklist: 2026

Updated
Get your washer and dryer up and running quickly with this checklist.

Buying a new washer and dryer is a major upgrade for your home. However, the excitement often fades when you realize you have to install them. You need to set aside time to prepare your space before the delivery truck backs into your driveway.

We will walk you through exactly what you need to do before your appliances arrive. This preparation ensures a seamless installation, whether you are doing it yourself or hiring a professional.

Keep reading for the ultimate washer and dryer installation checklist, plus critical details about plumbing and electrical requirements you might have missed.

Key Takeaways

  • Measure everything: Confirm dimensions of the installation space, hallways, and doorways to ensure the appliances fit.
  • Check connections: Verify you have the correct voltage outlets, gas lines (if applicable), and water shut-off valves within four feet.
  • Buy accessories: Most new appliances do not come with power cords, vent hoses, or water lines; purchase these separately.
  • Clear the path: Ensure the delivery team has a clear route free of rugs, furniture, or tripping hazards.


Pre-Installation Essentials

Before the installation team or your new appliances arrive, you must prepare the area. If you skip this step, you risk delayed delivery or a failed installation.

Here are the critical items you need to have ready:

  • Water valves: You need working hot and cold water shut-off valves. Corroded or stuck valves are a major issue.
  • Proximity: Faucets, drain lines, and electrical outlets must be within four feet of the appliance location.
  • New hoses: Installers usually refuse to use old hoses. Have new stainless steel braided water intake hoses ready.
  • Power cords: Electric dryers rarely come with cords because outlets vary (3-prong vs. 4-prong). Buy the one that matches your home.
  • Gas lines: If you have a gas dryer, you need a flexible gas line and a shut-off valve with a metal connection.
  • Stacking kits: If you plan to stack your units to save space, you must have the specific stacking kit for your model on hand.

This might sound like a lot, but most major retailers will prompt you to add these installation accessories to your cart during checkout. Always double-check your receipt to see what is included.

Choosing the Right Location

You cannot install a washer and dryer just anywhere. While modern aesthetics allow for creative placement, the practical mechanics of the machines dictate where they can go.

First, consider the structural integrity of the floor. Washing machines vibrate intensely during the spin cycle. Second-floor installations often require reinforced flooring or anti-vibration pads to prevent noise and structural damage.

Second, map out the access route. Measure the width of every doorway, hallway, and turn between the entry door and the laundry room. If there are stairs, count them; delivery teams often charge extra for more than three flights or may refuse delivery without an elevator.

Finally, you are tethered by utilities. You need a water supply, a wastewater standpipe, and a specific electrical outlet (120v for washers, usually 240v for electric dryers). If you dream of moving the laundry to a guest bedroom or closet, you will need to hire a plumber and electrician to run new lines first.

Washer and Dryer Installation Checklist

To make delivery day stress-free, run through this comprehensive checklist.

  • Consult the supplier: Review your order confirmation. Retailers often outline exactly who is responsible for what (e.g., disconnecting old units).
  • Verify dimensions: Check the width and depth of the washer and dryer against your available space.
  • Measure depth correctly: Leave at least six inches of clearance behind the dryer for venting and roughly four inches behind the washer for hoses.
  • Check water faucets: Ensure the hot and cold water spigots turn on and off easily. If they leak or stick, call a plumber before delivery.
  • Inspect the standpipe: The drain pipe must be at the correct height to prevent siphoning. Most manufacturers require the opening to be between 30 and 96 inches above the floor.
  • Purchase a power cord: For electric dryers, check your wall outlet. If it has three slots, buy a 3-prong cord. If it has four slots, buy a 4-prong cord.
  • Check gas connections: For gas dryers, verify you have a natural gas supply line with a shut-off valve. If you use liquid propane, purchase a conversion kit.
  • Inspect the vent route: For vented dryers, ensure the ductwork in your wall is clean and not crushed. You will need a semi-rigid dryer vent kit to connect the machine to the wall.
  • Clear the path: Remove rugs, wall art, and narrow furniture from the delivery path to prevent damage to your home or the new appliances.
  • Secure parking: Verify that a large delivery truck can park legally near your home entrance.
  • Prepare for stacking: If stacking, buy the manufacturer-approved kit. Never stack a dryer on a washer without this safety hardware.
  • Check Wi-Fi signal: For smart appliances, ensure your router signal reaches the laundry room so you can connect the features immediately.
  • Be present: An adult (usually 18+) must be home to sign for the delivery and inspect the appliances for dents or scratches.

How to Install a Washing Machine

Many retailers offer free installation, but if you bought a used machine or prefer DIY, it is a manageable task. Here is how to set it up safely.

  • Time: 30, 45 minutes
  • Difficulty: Intermediate

What You Need:

1. Remove Shipping Bolts

This is the most critical step. New washing machines have heavy “shipping bolts” or “transit bolts” on the back to keep the drum from banging around during transport. If you run the machine with these in place, it will shake violently and break. Use a wrench to remove them and cover the holes with the provided plastic caps.

2. Level the Machine

Place the washer in its final spot. Place a spirit level on top of the machine (check both side-to-side and front-to-back). Tilt the machine back slightly to access the adjustable feet. Rotate the feet clockwise or counter-clockwise until the bubble in the level is centered. Tighten the locking nuts against the machine frame to secure the feet.

3. Connect Water Hoses

Turn off your wall valves if you haven’t already. Screw the new hoses onto the back of the machine (hand-tighten, then give a quarter turn with pliers). Connect the other ends to your wall faucets. Note: Hot goes to hot, cold goes to cold. Using color-coded hoses prevents mistakes.

4. Install the Drain Hose

Locate the flexible drain hose attached to the washer. Insert the curved end into your wall standpipe or hook it over the edge of a laundry sink. Secure it with a cable tie or the provided bracket so the force of the draining water does not pop it out, which causes flooding.

5. Check for Leaks

Turn on the water valves slowly. Inspect the connection points at both the wall and the machine for drips. If dry, plug the power cord into the outlet. Run a short “Rinse & Spin” cycle without clothes to verify the machine fills and drains correctly.

How Long Does Installation Take?

If you have prepared the space and bought the right accessories, a standard installation takes about 30 minutes per appliance. However, if the valves are stuck, the drain pipe is clogged, or the hallway is too narrow, it can turn into a multi-hour project. Doing the prep work on our checklist is the best way to ensure a fast appointment.

FAQs

Do Washer Dryers Need a Vent Hose?

It depends on the model. Standard standalone dryers and some combos definitely require a vent hose to exhaust hot, moist air outside. However, ventless washer-dryer combos and heat pump dryers do not use a vent; they condense moisture internally and drain it away. Always check the manufacturer’s specs.

Can You Install a Washer and Dryer Without Hookups?

Yes, but you need adapters. You can use a “portable” setup where the washer connects temporarily to a kitchen faucet and drains into the sink. For a permanent solution without existing hookups, you must hire a professional plumber and electrician to install lines, which typically costs between $350 and $1,000 depending on your home’s layout.

What Is the Difference Between 3-Wire and 4-Wire Dryer Cords?

Older homes (pre-mid-90s) typically use 3-wire outlets, while newer homes require 4-wire outlets for safety. The 4-wire configuration separates the neutral and ground wires to prevent shock. You must match your dryer cord to your specific wall outlet configuration; do not guess.

How Do Ventless Dryers Work?

Ventless dryers use a heat exchanger or condenser. Instead of blowing hot, wet air outside, the machine recirculates air through a cooling chamber. The moisture condenses into water, which is then pumped out through the drain hose. They are energy-efficient and great for apartments but take longer to dry clothes.

How Much Does a Washer Dryer Combo Cost?

Prices vary widely based on technology and brand. A basic all-in-one unit starts around $900, while high-end heat pump models with smart features can cost upwards of $2,500 to $3,500.

Can I Install a Gas Dryer Myself?

It is highly recommended that you hire a professional for gas dryer installation. Working with gas lines carries a risk of leaks, fires, or carbon monoxide poisoning if connections are not perfectly sealed. Many local codes actually require a licensed professional to perform the connection.

Do I Need a Pan Under My Washing Machine?

If your laundry room is on a second floor or in a finished living area, a drain pan is essential. It catches minor leaks or condensation, preventing water damage to the subfloor and ceiling below. Some local building codes make this mandatory for upper-level installations.


Ready for Laundry Day?

Buying new appliances is an investment, and proper installation protects that investment. While you might rely on a delivery team to do the heavy lifting, your preparation makes their job possible.

By measuring your space, checking your utilities, and clearing the path, you ensure a smooth process. Tick off the boxes on our washer and dryer installation checklist, and you will be washing your first load of laundry in no time.

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About the Author

Beth McCallum

Beth McCallum is a freelance writer & book blogger with a degree in creative writing, journalism, and English literature. Beth firmly believes that a tidy house is a tidy mind. She is always looking for new ways to sustainably clean and tidy her house, that's kind on the environment but effective in the house, too!