All Systems Maintenance, Inc. is licensed, bonded and insured and has been in business for 38 years servicing all of Long Island. We handle both union and open shop projects and staff between 30-49 OSHA Certified employees on a year-round basis. We install complete plumbing for commercial and educational facilities and always handle project schedules within the necessary time requirements. We realize delays are costly, and our work is handled professionally and is fully guaranteed. Safety is a top priority, and we train our staff to work effectively and efficiently while on the job.