Welcome to DEYA Thermaikou
Municipal Water Supply and Sewerage Company of Thermaikos Municipality
(Mandatory) – We update our water intake records
We are now served immediately and quickly
It means that the bill is issued in the name of the actual person liable for the water consumption, the actual consumer, and his/her record in the DEYATH file is fully updated (with VAT number, Taxpayer ID, Personal Identification Number, contact phone number, e-mail and meter number)
If we do not update
- We cannot request a discount due to leakage, correction of incorrect billing, water meter check or make a settlement.
- We cannot request inclusion in the special DEYATH tariffs (social, professional) and benefit from the favorable charges.
- For reasons of personal data protection, our requests are not served or questions about our service are not answered. Since we are not the ones who “appear” on the card!
- We cannot access DEYATH’s electronic services.
- We cannot register the indication of the next four months (with attached photo). Mainly for residences that we do not have access to measure.
- We may cause problems in our uninterrupted water supply (interruption due to lack of data).
IMPORTANT: Professionals are now required to update the cards, an obligation so that DEYATH’s documents are correctly transmitted to the my DATA digital platform of AADE (A.1138/2020).
How do we update our water intake record? Electronically, without physical presence, through Ydata.eu by entering a unique code that is written on the front of your account.
Announcement DEYATH
Registering meter reading
Consumers will receive an email every four months to be informed about the days when they will be able to register their reading.
In case of any questions, we are at your disposal at 23920-25005.
Collective, joint action to save water!
We call all our citizens to a collective, joint action to save our precious natural resource, water, given that its adequacy is to a certain extent… in our hands!
The climate crisis with high temperatures and water scarcity phenomena do not let us rest, but on the contrary lead us to remember all these simple everyday tips for saving our water.
Keep in mind that especially indoors, in homes and offices:
- We turn off the taps: we do not let the water run unnecessarily when we brush our teeth, shave or wash our hands
- We immediately repair all leaks: running cisterns, dripping taps consume much more water than we think.
- We take short showers: we don’t fill the bathtub, we take quick showers with moderate pressure – 1/5 of the water we use in our homes is consumed in the bathroom!
- Being economical with dishes/clothes: we only put the dishwasher in when it’s full and we prefer to wash dishes in a basin, instead of leaving the tap running. Similarly, we make sure that the washing machine is full.
- We choose “smart” appliances: we invest in low-water and energy-consuming appliances and choose water-saving programs in our daily lives.
- We systematically monitor our consumption: DEYATH bills allow us to monitor our consumption history. We make our comparisons and show self-restraint when we see large deviations.
- You are reminded that tap water is intended exclusively for domestic use.
- Therefore, its use for washing cars, watering gardens, washing roads and sidewalks, as well as for irrigation purposes of private vegetable gardens, is prohibited.
Follow the water saving guidelines to limit consumption.
Announcement
Unfortunately, only 500 consumers have registered so far, out of about 30,000.
DEYATH once again invites consumers to register, in the application, to receive their bill directly in their email, to declare the reading of their Water Meters and to monitor its consumption.
This will facilitate the work of DEYATH and informing consumers.
DEΥA Thermaikou is being modernized
Announcement
Important Announcement
DEYA Thermaikou staff will continue the thorough checks.
Repayment of Overdue Debts
The debtors are given a deadline to come to DEYA Thermaikou for settlement of debts until:
April 30, 2024.
Otherwise, the Company is obliged to claim the uncollected debts.
Installation of Water Meters
DEYA Thermaikou informs that according to article 7 of the Regulation, consumers are required to have their water meters placed in an accessible area for any control. Buildings must have the water meter in an independent part, while detached houses must have the water meter outside the fence.
Please place signs with the name and contact details of the owners on detached houses and holiday homes.
In case of inability to access the property for the water measurement, you can contact DEYA Thermaikou by email or phone, which are indicated on the invoice forms and on our contact page.
Recent Announcements
ANNOUNCEMENT OF WATER SUPPLY INTERRUPTION in N. Michaniona – Saturday 21/02/2026
DEYA Thermaikos informs consumers that there will be a water supply interruption in the area of N. Michaniona on Kolokotroni Street and all adjacent streets from 8:30 due to the repair of damage to a water supply pipe. Water supply is expected to be restored around...
Water Supply Outage in the Area Between N. MICHANIONA & ANGELOHORI
DEYA Thermaikos informs consumers that there will be a water supply outage in the N. Michaniona & Angelochori area (Eptaria - Kanonia - Aineias - Camping) due to a voltage drop in the DEDDIE electricity network.
Water Supply Interruption in EPANOMI
DEYA Thermaikou informs consumers that there will be a water supply interruption in the Epanomi area of the Panagia network due to the restoration of an emergency damage to a central water supply pipe. Our crews are already on site to repair the damage as quickly as...
Bill Payment Methods
e-banking
Through Eurobank, NBG and Piraeus Bank, using the payment code that you will find on the printed invoice of DEYA Thermaikou.
Cash or POS
At the DEYATH cash desk, located at Neoi Epivates, Logothetou 1,
Monday – Friday 8:00 – 13:00
ELTA
With cash or through POS at the ELTA Branches Greek Postal Offices (until the payment deadline)
YDATA
Using the Ydata application