Coastal Building Services Inc. is Riverside County's premium janitorial cleaning services company, dedicated to providing spotless professional cleaning services in the Southern California at a competitive rate.  We have been servicing Riverside County for several years and have a lot of clients that provide us with positive reviews and great long term relationships.  Our crews of highly trained cleaners and supervisors have provided the highest quality in janitorial services to these counties as well as the Southern California region: Orange County, San Bernardino County, San Diego County, Santa Barbara County, Ventura County, Los Angeles County including Clark County Nevada. . Riverside County Riverside County has a moderate blend of educational and medical facilities, corporate offices, and municipal buildings. These buildings are a representative cross section of the types of buildings we have been serving for over 10 years.  . Our reputation... It is in great part the positive reviews and referrals that we have received from our clients that set CBS Inc., apart from the rest and makes us a leader in the cleaning service industry for Southern California.  This is a reputation we have worked hard to earn and will continue to maintain by providing your company with the best possible services available.