Contact information
Our customer service will advise you in all housing-related situations. Please see our contact details below for contacts concerning other matters.
How residents can contact us
Our customer service will advise you in all housing-related situations. You can take care of most things at our OmaHeka Resident Portal.
See our customer service contact informationOur other contact details
- On the Oma Heka Resident Portal, you can handle all housing-related contacts regardless of the time of day.
- Our customer service will help you by phone with all housing-related situations on weekdays. See our customer service contact information
On-call service number outside customer service opening hours 09 5767 3100.
We only accept e-invoices.
The invoices must always meet the requirements of the Value Added Tax Act on invoice entries. As a buyer, Helsinki City Housing Company is not subject to the reverse charge of value added tax (section 8 C of the Value Added Tax Act).
The invoice must mention the customer’s first and last name, delivery address, cost centre number and other references indicated by the customer, separated by a hyphen (e.g. project number, construction site key information) in accordance with the following model:
- Customer John Smith
- Delivery address Hekankatu 13 A 5
- Customer reference 1013 – 101391 – TA-FI101391.
Incomplete invoices can be returned to the supplier. If the original invoice is incorrect, the supplier must send a credit note for it. The credit note must indicate the debit note number and the same reference information as the debit note.
Heka’s general term of payment is 21 days net. We cannot guarantee that invoices delivered with a term of payment of less than 21 days will be paid by the due date.
Only purchase invoices and their attachments may be sent to the invoicing address.
Helsingin kaupungin asunnot Oy / Helsinki City Housing Company () invoicing addresses
Our e-invoicing address as of 1 December 2025:
Operator: Apix Messaging Oy, operator ID 003723327487, business ID 2379058-6.
Helsingin kaupungin asunnot Oy
Viipurinkatu 2
00510 Helsinki
OVT: 003723790586010
Helsingin kaupungin asunnot Oy, As Oy-Asunnot
Viipurinkatu 2
00510 Helsinki
OVT: 003723790586060.
Our headquarters are located in Alppila at Viipurinkatu 2. The entrance for visitors is at the corner of Viipurinkatu and Sturenkatu. Please let us know that you have arrived for a pre-arranged meeting by checking in with the porter in the lower lobby.
Our postal address is Viipurinkatu 2, 00510 Helsinki.
Heka’s communication serves media representatives on weekdays.
In case of defect notifications and other matters related to your own housing or lease agreement, please contact our customer service.
Heka’s switchboard is open on weekdays from 8.00 to 16.00 at +358 9 5767 4004.