Janitorial Services for Southern New England Businesses. We are your local experts for commercial cleaning, disinfection, and infection prevention. You can count on System4 IPS for customized janitorial & facility management services to meet all your needs—no matter whether you’re cleaning an office, bank, school, restaurant, church, or something else. Whether you want cleaning, disinfection, or next-level protection from antimicrobial coatings, call System4 IPS.