I think this listing and "Dale City Laundromat" at 4144 Dale Blvd on Google are the same location. The picture Andrew P. posted is what Dale City Laundromat looks like inside. It's inside Forestdale Plaza across the street from the McDonald's. Can't miss the red "Laundromat" sign. Lots of free parking available in the shopping center, and they are open from 6:30AM to 12AM (last wash at 10:30PM).
This is a coin-operated self-serve laundromat. They do have attendants available to help, and I believe they also have an option to drop-off laundry for additional fees. They have coin change machines inside to change your bills to quarters, and also vending machines for laundry soap if you forget to bring your own. The building is kind of dated, but there are a lot of different size machines available. I believe there are 4 types of washers ranging from $2.25 to $6.25 for a cold wash. It's 25 cents for every 7 minutes of dryer time. Amenities include two vending machines, flat screen TVs, and Wifi (but you have to ask for the password). It's not the fanciest place, but pretty decent if you only need to use a laundromat every once in a while. read more