Probably not in any significant amount in the particularly problematic frequencies and might actually amplify some frequencies. Could be helpful for reducing high-frequency noise in the room, though. Speaker cabinets, which do reduce sound emissions, have a fairly involved build process and require particular materials (e.g. MDF), which I doubt someone would do for a washer-dryer cabinet.

It is so when you have a nice expensive home you don’t have to see the washer dryer lol.

Looks like it’s blocking your electrical panel. If that’s so it’s a code violation. You are required to have 36” clearance in all directions (a good visual is the space a refrigerator would take up) it’s a danger if something goes wrong.

Lol didn't notice the autocorrect before I hit post. Ima leave it because it's ironic

Mainly Aesthetic I suppose. I’d probably have built it slightly wider so I can put some stuff in it.

Saves space.

Ha, while I agree that most don’t read carefully, the irony of you using the wrong word made me giggle!

Wtf does that have to do with the cabinet?

You guys need to work on your reading compression

Smaller footprint if they are stacked.

Some places people are forced to have their washer on the main floor. People don't like looking at a washer and dryer all of the time. The cabinet is purely for ascetics. You might get a bit of sound dampening but it's not the point of the cabinet. Feel free to remove it if you don't like it.

How does it save space? It literally takes up more space because the cabinet has to be larger than the washer and dryer inside it....

The bonding agent won't do squat as a moisture barrier; it's a form of glue. It's only there to make sure the bond between old concrete and new is sound.

All told, this looks bad but is probably ok.

That said, I am a person on Reddit. If you want sureity, hire a structural engineer who'll come out and let you know what's going on. The few hundred it'll cost will pay for itself if you ever sell the house and the buyers go "what's this?"

For looks and to reduce noise. You really shouldn’t have to work on a washer or dryer too often.

Space saver

In addition to what others say, I'm sure it also reduces the noise somewhat.

It's typically just to save space

Maybe to reduce noise?

It isn't (or shouldn't be) structural if that is what you're wondering.

Mine are just stacked bare.

No need for it. Someone simply thought it would look nice.

Thank you! That’s a great response. I’m going to check for a sill and see how stuck those rocks are.. I really like the suggestion of a bonding agent to create a moisture barrier. I’m not super concerned with the structural strength of it (but maybe I should be?).

Do you only care about the moisture barrier?

A lot of suggestions are going to do what you've mentioned, and try to:

Make it structural.

Tie it into the existing foundation.

Prevent water intrusion

(in that order)

Moisture barrier alone? Get a piece of dimpleboard on the opposite side, possibly with some cementboard backing it to give it some strength.

Moisture and vapor? Peel and stick on the cement board, then as above.

Properly fixing it? Check to see if they did something fun with a sill plate and the rubble you're seeing. Clear out the rubble.

Drill into both sides of the gap about 6" and use simpson set-xp to install 4-5 pieces of #4 rod. (fitting the rod in both sides vs wiring 2 pieces that are in one side apiece together in order to develop the connection properly is above my paygrade)

Get plywood on both sides of the gap, and secure it to the foundation. (do more than just this, but I don't know forms well enough to tell you specifics) Put a bonding agent on the existing concrete to prevent a cold joint. Talk to the staffer at ( Whitecap/your concrete supplier ) and fill with the self-consolidating concrete or no-shrink grout they recommend.

Wait a week or so (mist the top daily with cool water) before you pull the forms and see how you did.

Edit: whoever did your foundation should get a good kicking for not doing their job properly, ditto the inspector for the city, and whoever inspected your home at time of purchase.

It LOOKS like they framed around it, so there's a chance this is only a cosmetic problem, but that needs an engineer to say for certain.

I did my own apartment. With no attic access and without any experience. As long as their is an existing light to tie into, it’s much easier. If you have to run to a switch, that can be difficult. However.. since you have the attic access, running to the switch may not be as hard for you.

I say do it yourself. Especially since you have attic access.

I does need a bit of a darkened room.

Not so much with the pancake LED. Most of those are IC rated.