How to Grow Your Laundromat Customer Base As an established laundromat owner, it can be hard to grow your customer base if you are stuck in day-to-day business activities. The Coin Laundry Association shares that laundry facilities see an average return on investment (ROI) of >20-35%. Keep these profits steady and even grow them further by expanding your customer base. Martin-Ray Laundry Systems Experts share some tips and tricks with you to be a successful, existing laundromat owner Upgra...