Thunderbird Maintenance Corporation delivers the highest-quality, commercial cleaning services to our clients in Long Island. Our commitment to reliable and professional commercial cleaning services in Long Island puts us above our competition. Each of our cleaning professionals is highly trained, and there is always a customized cleaning plan in place for each of our customers. Whether your company is in need of medical office cleaning, janitorial cleaning services, or green cleaning services, we can help. We believe in quality cleaning practices that are safe for our employees and the environment, but give every commercial property a deep and thorough cleaning service.