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Make a Grease Trap Service Payment

Thank for choosing Mahoney (formerly SeQuential) to service your grease trap! You may make a one-time payment using the form on this page.

We also offer an auto-pay option. If you would like to sign up for auto-pay, please call (971) 332-4335 to speak to a member of our Accounting Department.

To mail a check, please send to the below address. We cannot accept payment sent to any other location.

SeQuential Environmental Services, LLC P.O. Box 102436 Pasadena, CA 91189-2436


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Did you know we offer FREE used cooking oil collection?

Mahoney (formerly SeQuential) is your comprehensive solution for all your grease management needs. Contact one of our dedicated Account Managers today to take advantage of our complimentary used cooking oil collection service. We will supply you with a free container for your used oil and establish a convenient pick-up schedule tailored to your requirements. Streamline your grease management process with Mahoney (formerly SeQuential) and experience the benefits of our efficient and hassle-free service. Get started by reaching out to us now!

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