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Delaware City, DE Hauling

Welcome SEM customers to Casella!

We are pleased to be your waste and recycling service provider.

A MESSAGE TO OUR VALUED SEM CUSTOMERS

Our goal has always been to provide you with exceptional service at a great value, and throughout the years we have been very grateful for the opportunity to serve you. After careful consideration, we have made the decision to sell Sustainable Environmental Management (SEM). We deeply value the relationships we’ve built with you over the years and are pleased to announce that, as of June 2, 2025, Casella will be your new service provider.

For nearly 10 years, we have been dedicated to delivering exceptional service and great value. We are proud of the local reputation we’ve built and the trust we’ve earned from customers like you. Casella was our choice because they place a high value on customer service and have a strong commitment to making a difference in our local communities.

What does this mean for you?

For now, very little will change. Casella will provide the same high-quality service you’ve come to expect, and you will continue to see the same drivers who are familiar with your routes and individual needs during the transition.

We are working to quickly transition your account information into our systems. During this time, you will continue to receive a bill from SEM, and you should continue to make your payments as usual. We expect to have our combined systems up and running soon and will communicate with you as integration plans move forward.

We have enjoyed serving you and appreciate your loyal patronage over the years. We are confident that this transition will be smooth, and that Casella will continue to meet your needs with the same level of care.

If you have any questions about your service with Casella, please call 302-832-8000. Thank you for being part of our journey. We look forward to continuing to provide you with outstanding service from Casella for many years to come.

Exciting Updates

At Casella, our top priority is to provide you with reliable service you can count on. We want to inform you of upcoming changes that will be made in the near future to your customer billing and payment portal.


Will I receive a new account number?

Yes, your new account number will be on your first invoice. Additionally, we will mail a letter to you in advance that will contain your new account number.

Will the appearance of my invoice change?

Yes, your invoice going forward will look different. Your invoice will still contain information about the services provided. Invoices will be sent from Casella Waste Systems, Inc.

Will the timing of when I receive my bill change?

We will be adjusting certain billing cycles and the timing of when you receive your bill may change. All impacted customers will be notified by mail prior to the change.

Will my rate change?

Your underlying rate for services will not change.

Will my customer payment portal change?

Yes, the new customer payment portal is provided by KUBRA, who is an industry leader in providing a service that is safe, secure, and easy to use. You can expect –

◦ Improved User Experience - Our customer payment portal is intuitive and easy to use, giving you seamless access to account details, billing, and payment options including Bank ACH and Credit Card.

◦ Enhanced Privacy Protection - Your security matters to us. The payment portal includes advanced features to safeguard your personal information.

◦ More Control, Better Service - With streamlined functionality, managing your account has never been simpler. Enhanced services include –

Easy and efficient autopay enrollment,

Robust communications delivered via email and or SMS message,

The ability to manage contact information and paper/paperless preference for bill receipt,

The ability to manage payments via text or secure email and

The ability to link multiple accounts under one User ID, among other features.

The customer payment portal can be accessed at Casella - Your Home

Will I need to enroll in the customer payment portal?

If you had a Web Portal account with SEM, you will not need to re-enroll in the new payment portal. You will need to reset your password the first time that you log on. Click on “Forgot your Password?” to initiate this process.

All stored information and preferences will be transferred in a safe and secure way that meets or exceeds industry standards, including the encrypted transfer of credit card information.

If you were set up for recurring payments for your account, these will continue.

If I pay via check, will the address that I mail my check to change?

While we prefer that our customers use the customer payment portal and enroll in convenient autopay, the address to use for mailing a check is changing to –

Casella Waste Systems Inc.
P.O. Box 1371
Williston, VT 05495

Please be sure to include the remittance advice and use the envelope that is provided.

Will my trash and recycling collection service schedule change?

We will service your home/business on the same schedule with the same frequency. If your schedule should change in the future, a communication notifying you of this change will be delivered in advance.

Who should I contact if I have questions about my account?

You may continue to call the same local number at 302-832-8000. Your call will be answered by a representative that is prepared to assist you.

Address:
755 Governor Lea Road
New Castle, DE 19720
(302) 832-8000
Driving Directions
Pay your Bill:
Casella
PO Box 1371
Williston, VT 05495-1371
Pay Online
Upcoming Holiday:
Christmas ( )
  • There will be One Day Delay
  • Customer Service will be Closed on Christmas.
New Years Day ( )
  • There will be One Day Delay
  • Customer Service will be Closed on New Years Day.
Martin Luther King Jr Day ( )
  • There will be No Delay
  • Customer Service will be Open on Martin Luther King Jr Day.
Holiday Schedule
Delaware City, DE Hauling

2025 Holiday Schedule

Holiday Date Customer Service is... Service Schedule
Christmas December 25, 2025 (Thursday) Closed One Day Delay
Date December 25, 2025 (Thursday)
Customer Service is... Closed
Service Schedule One Day Delay
Customer Care
  • Phone: (888) 852-2151
  • Mon - Fri: 7:00am - 5:00pm
  • Sat: 8:00am - 12:00pm
Office
  • Phone: (802) 438-2151
  • Mon - Fri: 8:00 AM - 5:00 PM

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