Acea Ato 5 Contacts

Telephone Numbers

To report a fault:

800 191 332

Toll-free number available 24/7 - Free from your landline and mobile phone.

For commercial services: Frosinone telephone area:

800 639 251

Toll-free number available from Monday to Friday from 8:00 a.m. to 7:00 p.m., Saturday from 8:00 a.m. to 1:00 p.m.
(except bank holidays)
Free from your landline and mobile phone.


Please be informed that, from Tuesday 6 April Frosinone and Cassino help desks will reopen to customers from Monday to Friday from 8:30 a.m. to 1 p.m. and from 2:00 p.m. from 4.30 p.m. In compliance with the Covid-19 safety regulations, you can book (free of charge) via the ufirst app and choose the date and time of your appointment directly from your smartphone. Only customers who have booked via the app will be allowed to go to the help desk.

Click here to download the app from Google Play

Click here to download the app from the App Store

To check which documents you need to provide with your request, please refer to the Help and support section.
We reminds our users that they can manage water supply services via contacts and from home, 24 hours a day,  and the MyAcea digital platform.

Please be informed that to improve efficiency and rationalize locations, from Tuesday 6 April the help desk in Viale Roma will reopen to replace the one in Viale Aldo Moro currently open.


Via Giacomo Leopardi, 32


Viale Roma

Certified e-mail

For customers, authorities and suppliers to send documents and complaints.

Are you a customer of one of the other water companies in our Group?

You can find the contact details in the dedicated sections on their respective websites.

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