Happy Wash Laundromat is a 24-hour self-service laundromat at 504 West Coast Drive in Clementi. The business says it does not do dry cleaning, and that customers do not need to bring detergent or softener, which are provided. Payment can be made by card or by coin, with a coin changer on site. Customers describe the shop as clean and pleasant, and say the owner is responsive. One reviewer says the cashless option is the best part. The main complaint is about a dryer: one customer had clothing caught inside a drum and found the owner hard to reach by phone and text at the time. The website says the owner is planning more outlets, and that enquiries go through each outlet's Google profile chat. Among the two other laundromats within a kilometre, Crispy Clean Laundry at 464B Clementi is 1.0 km away with 4.8 from five reviews, and Laudromat Wonder Wash at Clementi Avenue 3 is 0.4 km away with no rating yet.