Source: https://tendernation.io/suppliers/tziallas-konstantinos-and-sia-ee

Supplier profile

# Τζιαλλας Κωνσταντινος και ΣΙΑ Ε.Ε.

Public sector contracts won, from published award notices

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Contracts won

6

since 21 Nov 2024

Total awarded

£111,002

where values were published

Buyers

3

public bodies

Latest win

5 Jul 2026

##  Recent contract awards

- [Προμήθεια και τοποθέτηση κουφωμάτων σε δημοτικά κτίρια στη Δ.Ε. Κόνιτσας](https://tendernation.io/opportunities/01a17dc8-7108-71a6-88ee-283088188f37/promitheia-kai-topothetisi-koyfomaton-se-dimotika-ktiria-sti-de-konitsas) [Δημος Κονιτσας](https://tendernation.io/buyers/dimos-konitsas)

    £25,355

    5 Jul 2026
- [Προμήθεια και τοποθέτηση κουφωμάτων σε δημοτικά κτίρια στη Δ.Ε. Μαστοροχωρίων](https://tendernation.io/opportunities/01a17dc8-70dd-72c1-9c56-5b7203264fba/promitheia-kai-topothetisi-koyfomaton-se-dimotika-ktiria-sti-de-mastorokhorion) [Δημος Κονιτσας](https://tendernation.io/buyers/dimos-konitsas)

    £22,812

    5 Jul 2026
- [Προμήθεια κουφωμάτων Δημοτικού Σχολείου Παπίγκου](https://tendernation.io/opportunities/01a17bbd-7169-7087-b987-20ad349c0cb4/promitheia-koyfomaton-dimotikou-skholioy-papighkoy) [Δημος Ζαγοριου](https://tendernation.io/buyers/dimos-zaghorioy)

    £9,588

    3 Sept 2025
- [ΠΡΟΣΚΛΗΣΗ ΥΠΟΒΟΛΗΣ ΠΡΟΣΦΟΡΑΣ τίτλο <<Προμήθεια και τοποθέτηση ξύλινων κουφωμάτων Πυργου>>](https://tendernation.io/opportunities/01a17b63-e993-739b-9fcf-49203c3a08b1/prosklhsh-ypobolhs-prosforas-titlo-promitheia-kai-topothetisi-ksylinon-koyfomaton) [Δημος Κονιτσας](https://tendernation.io/buyers/dimos-konitsas)

    £16,958

    27 May 2025
- [Υποέργο: Αντικατάσταση κουφωμάτων διατηρητέου κτιρίου “Οικοτροφείο Συρράκου”](https://tendernation.io/opportunities/01a17af9-ead2-7103-823c-c697eb54f76a/ypoergho-antikatastasi-koyfomaton-diatiriteoy-ktirioy-oikotrofio-sirrakoy) [Δημος Βορειων Τζουμερκων](https://tendernation.io/buyers/dimos-boreion-tzoymerkon)

    £25,494

    23 Dec 2024
- [Προμήθεια κουφωμάτων και ξύλινων βιβλιοθηκών](https://tendernation.io/opportunities/01a17ad9-26a7-727c-8d5d-98b5f3a34413/promitheia-koyfomaton-kai-ksylinon-vivliothikwn) [Δημος Κονιτσας](https://tendernation.io/buyers/dimos-konitsas)

    £10,795

    21 Nov 2024

## Who they win from

- [Δημος Κονιτσας 4 wins](https://tendernation.io/buyers/dimos-konitsas)
- [Δημος Βορειων Τζουμερκων 1 win](https://tendernation.io/buyers/dimos-boreion-tzoymerkon)
- [Δημος Ζαγοριου 1 win](https://tendernation.io/buyers/dimos-zaghorioy)

## What they win

- [Construction materials & structures](https://tendernation.io/sectors/construction-materials) 5
- [Repair & maintenance services](https://tendernation.io/sectors/repair-maintenance) 1

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