Located in Chico, California, HydroBuilder.com was started to not only provide quality parts and service at an affordable price, but to also provide a wealth of knowledge and information to its users. They understand starting an indoor or outdoor grow for the first time can be a daunting task and with all of the information on the Internet, it can be hard to sort through all of the less appealing data. The 48 most popular HydroBuilder coupons & HydroBuilder promo codes for December 2017. Make use of HydroBuilder coupon codes & sales to get extra savings when shop at hydrobuilder.com.