Over the past few years, these have been popping up outside of petrol stations.
They may have laundromats in some parts of the country, but we haven't seen any in the places we've lived. They have launderettes, which seem to be places where people drop off laundry to have someone else take care of it, but I've not been inside one, so I'm not sure exactly how they work.
We've spent a lot of time over the years looking at rental properties on various websites and one thing we noticed pretty quickly was that they (almost) all have washing machines in them. These are small, under-counter machines, usually in the kitchen, but sometimes tucked away in a bathroom or other spot. There may or may not be a dryer. Again, this may be different in more densely populated areas, but I only have experience with small rural towns, both in terms of where we've lived and where we've looked.
We've lived in four different dwellings here. All have had washing machines and two have had dryers. We never used the dryers. All have had laundry racks--sometimes called a clothes horse or air dryer here. We were happy to discover that these air dryers were part of the furniture, small appliances, kitchenware, etc that comes with rental properties. We'd planned to buy one, so were glad when we didn't have to. We stopped using a dryer over 35 years ago, except for the times we were camping across the US and didn't have a place to hang clothes to dry. From looking at the suggested drying times on the front of these dryers, I'm glad I never felt the need to use them--they both suggested 3 hours of drying time for a load of cottons! This may be one reason why clotheslines are so popular here. Only one of the places we've lived has had no clothesline available, and I could have rigged one up if I'd wanted one. I didn't, because the rack was easier, especially when I consider the fact that me hanging out laundry seems to be a signal that it should rain. I love rain, but not on my drying laundry. As soon as I dash out to bring it in, the sun comes back out. I hang the stuff on the rack and walk away.
As we've ridden around on buses, I've seen a lot of clotheslines with metal roofs over them. Electricity is expensive here, so that may be one reason why clotheslines are so popular. And really, three hours of drying time for one small load would be another incentive to hang the clothes and leave them.
So people have washing machines in their homes, but they're small, so big bulky items won't fit. I guess that's where these machines come in handy. They may also be useful for tourists. They seemed to start popping up a couple of years ago. This one is in Ballyshannon and someone was using it when we were there. There's one at the petrol station on the outskirts of town here and also at a station on the edge of Donegal Town--the latter has two such set-ups. I don't recall ever seeing those in use, but maybe I've simply not been going by at the right time. It seems like a good thing to have available in the event that a large item needs to be laundered.