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Email Address:  

Si Environmental Account Questions?

customercare@sienv.com
(832) 490-1600

Customer Service Hours
Monday - Friday: 8:00AM - 5:00PM CT


FOR 24 HOUR WATER AND SEWER EMERGENCIES
CALL (832) 490-1601

Payment Portal Questions?

customerservice@firstbilling.com
(855)270-3592
Customer Service Hours
Monday - Friday: 8:00AM - 4:30PM CT