GB Cleaning & Maintenance Welcome to GB-cleaning.com. GB Cleaning & Maintenance is a highly respectable cleaning company established in the 1950’s. Since then, our main aim has been to provide you, the customer, with best service possible at the best price. We still remain one of the best cleaning companies in the country due to our dedication to customer service derived from the excellent training all GB Cleaning & Maintenance employees receive. If you need a job done, no matter how big or small, GB Cleaning & Maintenance will be happy to assist.