WASH HOUSE CO., LTD.

WASH HOUSE CO., LTD. (WASHハウス株式会社) is a Japanese coin laundry chain operator headquartered in Miyazaki City, Miyazaki Prefecture. It is the largest company in Japan's coin laundry industry. The company was founded in 2001 as KDM Corporation by Yasutaka Kodama, a former securities company employee, and opened its first two stores in Miyazaki City in 2002. It changed its name to WASH HOUSE CO., LTD. in 2005 and listed on the Tokyo Stock Exchange Mothers market and Fukuoka Stock Exchange Q-Board in 2016. WASH House operates a franchise system in which all stores are monitored 24 hours a day by headquarters staff via cameras, and cleaning and customer service are handled by WASH House itself, so franchisees essentially only provide capital. As of September 2019, the chain had 607 stores across Japan, of which 443 were in the Kyushu region. The company holds business model patents for its coin laundry management system, and its washing machines and dryers are custom-built by Sanyo Electric and NTT Data with remote operation capabilities. WASH House stores offer large-capacity washing machines (up to 22 kg), dryers (up to 25 kg), washer-dryers, sneaker washers, and spot removers. Prices range from about 300 yen for a 7 kg wash to 700–1,000 yen for a 22 kg wash, with drying at 100 yen per 5–10 minutes. The company emphasizes hygiene, with dedicated staff cleaning daily, free drum cleaning before use, and daily sterilization of machines. A 24/7 call center (0120-545-696) provides remote support and advice. The WASH House app enables cashless payment and campaigns. The company has expanded internationally, establishing WASHHOUSE (Thailand) CO., LTD. in June 2019 and WASHHOUSE (Shandong) CO., LTD. in Shandong Province, China, in December 2019. It also owns a laundry truck that provides laundry support in disaster-affected areas, such as after the large fire in Oita City's Saganoseki in November 2025. WASH House has a mascot family called "WASH Family" with characters designed in the style of American animation: WASH Obasan (grandmother), Robe (mother), Futon (father), Cotton (baby son), and Capet (daughter).

WASH HOUSE CO., LTD. was founded in 2001 as KDM Corporation by Yasutaka Kodama, a former securities company employee. In 2002, the company opened its first two WASH House stores (Jogasaki and Oshimadori) simultaneously in Miyazaki City, Miyazaki Prefecture. According to Kodama, opening two stores at once was intended to create the impression of a large capital backing. In 2003, the company established the National Coin Laundry Management Association (有限責任中間法人全国コインランドリー管理業協会) to improve the industry's image. In 2004, it obtained a business model patent for its coin laundry management system (Patent No. 3520449). In 2005, the company changed its name to WASH HOUSE CO., LTD. In 2008, it obtained another business model patent (Patent No. 4172043). In 2009, it opened its 100th store and obtained two Chinese patents for its coin laundry management system (Patent Nos. 541344 and 930450). In 2010, it obtained another business model patent (Patent No. 4441796). In 2014, it opened its 200th store. In 2016, it listed on the Tokyo Stock Exchange Mothers market and the Fukuoka Stock Exchange Q-Board market. In June 2019, it established WASHHOUSE (Thailand) CO., LTD. in Thailand, and in December 2019, it established WASHHOUSE (Shandong) CO., LTD. in Shandong Province, China, in partnership with Shandong Xiaoya Intelligent Technology Development. As of September 2019, the chain had 607 stores across Japan, with 443 in Kyushu. The company has expanded its prefecture presence over the years: Miyazaki (2002), Kagoshima (2003), Fukuoka (2004), Oita (2005), Kumamoto (2006), Saga (2007), Yamaguchi (2013), Hiroshima (2014), and in 2017 Okayama, Kagawa, Ehime, Hyogo, Nara, Tokushima, and Aichi; in 2018 Chiba, Aomori, Saitama, and Mie; and in 2019 Kanagawa and Gifu. The company also owns a laundry truck that provides laundry support in disaster-affected areas, such as after the large fire in Oita City's Saganoseki in November 2025. WASH House has a mascot family called "WASH Family" with characters designed in the style of American animation: WASH Obasan (grandmother), Robe (mother), Futon (father), Cotton (baby son), and Capet (daughter).

• 2025

  Provided laundry support after large fire in Oita City's Saganoseki in November

• 2019

  Established WASHHOUSE (Thailand) CO., LTD. in June and WASHHOUSE (Shandong) CO., LTD. in December

• 2016

  Listed on Tokyo Stock Exchange Mothers and Fukuoka Stock Exchange Q-Board

• 2014

  Opened 200th store

• 2010

  Obtained another business model patent (Patent No. 4441796)

• 2009

  Opened 100th store; obtained two Chinese patents

• 2008

  Obtained another business model patent (Patent No. 4172043)

• 2005

  Changed company name to WASH HOUSE CO., LTD.

• 2004

  Obtained business model patent for coin laundry management system (Patent No. 3520449)

• 2003

  Established National Coin Laundry Management Association

• 2002

  Opened first two WASH House stores in Miyazaki City

• 2001

  Founded as KDM Corporation

Japan's largest coin laundry chain, offering clean, safe, and convenient 24-hour unmanned laundry facilities with remote monitoring and franchise expansion.

• 22kg washing machine

  Normal course: 700–1,000 yen; electrolyzed water course available for +100 yen. Wash time approx. 31 minutes (normal) or 46 minutes (electrolyzed water).

• 12kg washing machine

  Normal course: 400–700 yen; electrolyzed water course available for +100 yen. Wash time approx. 31 minutes (normal) or 46 minutes (electrolyzed water).

• 7kg washing machine

  300–500 yen; wash time approx. 30–40 minutes.

• 25kg dryer

  100 yen for 5–8 minutes of operation.

• 14kg dryer

  100 yen for 7–10 minutes of operation.

• Sneaker washer

  200 yen; can wash adult sneakers and children's indoor shoes.

• Sneaker dryer

  100 yen for 20 minutes of operation.

• Spot remover

  Free stain removal machine available in stores (some stores may not have it).

• WASH House app

  Enables cashless payment and access to campaigns.

• Free laundry and drying at WASH House Nakatsu Ozada store
• Free laundry and drying at WASH House Yumesaki store
• New 17kg washer-dryers and free campaign at WASH House Umi Higashi store

1. 1ＷＡＳＨハウス｜サービスサイト｜トップwash-house.jp
2. 2ＷＡＳＨハウス｜サービスサイト｜安心・安全への取り組みwash-house.jp
3. 3ＷＡＳＨハウス｜サービスサイト｜清潔で衛生的な店舗への取り組みwash-house.jp
4. 4ＷＡＳＨハウス｜サービスサイト｜便利なサービスとアレルゲン対策wash-house.jp
5. 5Wash House - Wikidatawikidata.org
6. 6WASHハウス - Wikipediaja.wikipedia.org