Payment and Office Information


drop box sign outside of office

Our business office at 520 Garfield Ave remains closed.

Payments can be made by dropbox at our 520 Garfield Ave location, by customer portal using the green, online bill pay button, or by calling 218-730-4050 between 8:00am – 4:15pm Monday – Friday.  24 hour emergency response remains available by calling 218-730-4050 at any time.

For other city office information please visit:


Current Changes to ComfortSystems Billing Accounts 

    1. All utility and service accounts will continue to bill for regular usage charges.
    2. All utility disconnections for the cold weather rule, non-payment of utilities, and between owner/owner, owner/tenant, tenant/tenant transfers have been suspended.  Meaning that utilities will remain on during this time.  
    3. Beginning 3/27 customer accounts will no longer be charged penalties going forward on unpaid balances. Accounts will not be issued disconnection notices during this time.  Please note some notices may have been sent prior to this date and future dated.  These disconnection notices will not be executed. 
    4. ComfortSystems will arrange payment plans for customers requesting help during this time based on the financial resources and circumstances of the customer.  Customers will still be responsible for all utility charges and will have to eventually bring their account balances current through a payment plan.


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If you feel that you need to setup arrangements due to the impact of COVID-19 please send an email stating your name, address, and account number(s) for the account(s) in need of arrangements to 




24 Hour Emergency Numbers

Street, Water, Sewer:


Natural Gas:


811 - Know what's below. Call before you dig.
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520 Garfield Avenue | Duluth, Minnesota 55802
Phone: 218.730.4050