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About Us

Our company is based on the belief that our customers' needs are of the utmost importance. Our entire team is committed to meeting those needs. As a result, a high percentage of our business is from repeat customers and referrals.

We would welcome the opportunity to earn your trust and deliver you the best service in the industry.

No Complications
Have enough hassles in your life? I want to make your experience with JBS as hassle free as possible. I will offer you free no obligation estimates to see if I can help you. I can usually start servicing your facilities within a few days and do all I can to help make your transition a smooth and satisfying one.

Jose Cornejo is the original visionary behind Janitorial Bay Service. Prior to operating Janitorial Bay Service (JBS), the Peninsula native gained valuable experience while operating his father Janitorial business, Jose simultaneously attending Solano Community College studying Liberal Arts. Eventually he used his expertise of the janitorial industry to branch out on his own and, in 1994, JBS was born.

I want to earn your TRUST and that takes time. In the meantime, I want to lay the foundation for building that trust. I will provide you with a detailed proposal of the services you have requested and I have agreed to provide. I also guarantee my price for a minimum of one year so you don't have to worry about being given a low price to "get in the door" and then seeing expensive "add on's". If the needs of your company change, I will gladly negotiate our contract up or down to be appropriate to your needs.

Our Certifications

IICRC Certification

Tile and Grout Cleaning Certification

Certified Commercial Duct Cleaner

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Free Estimates - Call Today 925-525-7577