Contact Us
For water and wastewater related emergencies or questions about your bill please contact Si Environmental, LLC customer service at (832) 490-1600. For legal inquiries and public information requests contact Allen Boone Humphries Robinson LLP at (713) 860-6400. To contact the board and for all other inquiries, you may use the form below.
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Customer Support
For billing and service requests from 8:00am–5pm Monday–Friday
(832) 490-1600
customercare@sienv.com
After-Hour Emergency
(832) 490-1601
Mailing Address
6420 Reading Road
Rosenberg, TX 77471