Elite Maids & Cleaning Service

National Building Service, Inc. is a commercial cleaning service based in Knoxville, Tennessee since 1985. We specialize in professional and reliable janitorial cleaning for your business and industrial buildings, whether it's an office, school, church, or recreational park. We offer 24/7 emergency service for our regular customers, carpet and floor cleaning, strip and floor waxing, construction clean-ups, daily cleaning, and much more! Give us a call or visit our office today for more information!

We are an exterior cleaning company located in Maryville TN and serving the Knoxville and surrounding areas. Our pressure washing and soft washing services include roof cleaning, gutter cleaning, house washing, exterior window cleaning, concrete cleaning, deck and fence cleaning and more. Our focus is always customer satisfaction. From small residential jobs to large commercial jobs, we listen to the concerns of all customers to ensure that we surpass expectations. ProClean uses the best commercial pressure washing equipment in the industry, some of which is custom built inhouse. We come to every job equipped for any task. Licensed, insured and worker's comp. Highly trained and knowledgeable staff. Pressure washing knoxville service at it's best.