Last spring I got a call out to Naugatuck — a couple in a condo who'd been stacking their laundry for two years on a piece of plywood they'd cut to fit. Front-load washer on the bottom, top-load dryer sitting on top. I'm not joking about the plywood. The dryer drum was so worn out of round I could see it wobbling through the door glass. They had no idea any of this was connected to how they'd set the machines up.
This is more common than I'd like to admit. Not always the plywood, but the general situation — people stacking their washer and dryer without thinking too hard about it, assuming that if it physically fits, it's fine. It's not fine. And beyond the mechanical damage, it may already be costing you a warranty claim you don't know you've lost yet.
Why so many people end up stacking in the first place
Laundry closets. Finished basements with low ceilings. Condos where the builder gave you thirty-six inches of floor space and called it a laundry room. Stacking is just the obvious move when you're working with a tight footprint, and appliance manufacturers know this — which is exactly why they make stacking kits. They'd rather sell you the kit than have you rig something up.
Most people skip the kit entirely. Or they buy a generic shelf-style bracket they found online for twelve dollars. Or they do the plywood thing. The manufacturer's stacking kit for most Whirlpool and LG front-loaders runs somewhere between thirty and sixty dollars depending on where you source it. It's designed specifically to lock the dryer to the washer frame so vibration doesn't transfer the way it otherwise would. That's the whole job the kit does. It's not complicated, but skipping it is how you turn a five-year-old dryer into a three-year-old dryer.
The mechanical damage from improper stacking
Whirlpool and LG are the two brands I see this on the most, partly because their stacking requirements are buried deep in the installation manual — not on the first page, not on a sticker on the unit. You have to go looking. So people don't find it, they stack the washer and dryer without the kit, and six months later the dryer starts making a low rumble that slowly gets worse.
What's happening is the spin cycle on the washer sends vibration up into the dryer. Without the kit creating a rigid connection, the dryer just absorbs that energy through its feet. Over time this accelerates wear on the drum bearings. I've also seen it travel into the dryer's control board — twice in the last year I diagnosed a control board failure and traced it directly back to vibration from an improperly stacked setup. Control boards are a much more expensive problem than drum bearings.
None of this requires a dramatic failure to be doing damage. It's slow, cumulative wear that shows up on a service call two years later and looks like a random breakdown.
Leveling matters more when the units are stacked
One unlevel unit throws off both of them. I say this on basically every stacked-setup call I go on. People level the bottom unit, set the dryer on top, and assume they're done. But the stacking kit and the leveling legs work together. If the whole column is slightly off, the washer rocks during spin, the dryer rocks with it, and now you've got two machines doing something they shouldn't be doing.
Check the level after you install the kit. Both units — not just the washer.
The warranty part nobody expects
Here's where it gets genuinely frustrating. Most major brands will ask about installation before honoring a warranty claim on a washer or dryer — how it's set up, whether it's stacked, what kit was used. "Improper installation" is a real denial reason, and stacking a washer and dryer without the correct manufacturer-approved kit qualifies.
I had a customer in Meriden who'd paid for an extended warranty on both her machines. She called me after two previous repair visits from someone else hadn't solved a rattling problem. Turned out the washer was shaking the entire column and the dryer was showing the symptoms. The extended warranty had already denied one claim. She was on her own by the time I got there.
She'd bought that warranty in good faith. Paid real money for it. And the improper stacking setup had voided her coverage before anything ever went wrong. Nobody told her that at the store.
If you're already stacked, here's what to actually do
Don't panic — most situations are fixable. Here's the order I recommend:
- Confirm your models are rated to stack together. Not all front-loaders are, even within the same brand, and mixing brands is almost always a problem. The model numbers are on a sticker inside the door frame. Look them up, find the installation guide, and check stacking compatibility. This takes ten minutes and it matters.
- Get the right manufacturer-approved stacking kit. Appliance parts suppliers usually carry them. At MY APPLIANCE Repair we can typically source the correct kit within a day or two. You can see more about our appliance repair services if you're not sure what you're dealing with.
- Re-level both units from scratch after the kit goes in. Don't assume the floor is doing the work. Adjust the leveling legs on the washer first, then confirm the dryer is plumb at the top of the stack.
- Listen for anything new. If a noise started right after stacking, something was likely already worn before the stack went up. Don't wait — book a service call before the problem reaches parts that cost real money.
One situation where unstacking is the right answer
If one of your machines is significantly older than the other, think hard before stacking a new unit on top of a worn-out one. A washer that's already vibrating more than it should — because the drum bearings are going or the shock absorbers are tired — is going to punish whatever's sitting on top of it.
In cases like that, the honest recommendation is to unstack, address the worn machine, and then re-stack correctly with the proper kit. It costs more upfront but it's cheaper than replacing a dryer control board six months from now.
Get a stacked laundry setup checked by a Connecticut repair tech
If any of this sounds like your setup, MY APPLIANCE Repair services Naugatuck, Meriden, and communities throughout Connecticut. It usually takes about ten minutes on-site to tell you whether the stack is the problem — and most of the time we can source the right stacking kit and correct the installation in the same visit.
Book a service call online, or contact our team if you have questions before scheduling. We'd rather help you get the setup right than come back later for a drum bearing job.
