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Documents to submit

✓Bid form — attachment no. 1
✓Declaration of non-exclusion
✓List of supplies from the last 3 years
✓Liability insurance — min. 120 000 €
✓Proof of bid bond payment
✓Power of attorney, if signed by an agent

AI warnings from documentation

❗Bid bond 3 500 € — payment before submission deadline
⚠Required 2 references after min. 90 000 €
⚠Completion deadline 30 days from signing
⚠Mandatory site visit — rejection if missed
✓No ISO certificate requirement

Budget and competition

3median number of bids

24%tenders with one bid

✓Amount from bid opening for this buyer
✓Who won there before and for how much
✓Suggested price range based on data

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Maintenance of internal combined sewage risers and horizontal pipes in the building of the Royal Castle in Warsaw

BZP Zamek Królewski w Warszawie-Muzeum. Rezydencja Królów i Rzeczypospolitej

COUNTRYPOLSKA

SUBMISSION DEADLINE12.10.2026

PUBLISHED15.09.2026

INDUSTRYRepair, maintenance services

SUBJECT OF THE CONTRACT

Maintenance of the sanitary sewage system (26 risers with a total length of 508.5 m and 4 horizontal lines with a total length of 112 m) in the Royal Castle in Warsaw building using a two-component polyurethane resin system method.

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In this sector (Repair, maintenance services) bids can still be submitted in 52 procedures — deadlines within 14 days.

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This buyer in the last 12 months

<span class="utn" title="Zamek Królewski w Warszawie-Muzeum. Rezydencja Królów i Rzeczypospolitej">Zamek Królewski w Warszawie-Muzeum. Rezydencja Królów i Rze…</span>: 12 notices.
Most frequent winners: Asseco Business Solutions SA (1), COM40 Sp. z o.o. Sp. K (1), EL-JOT Usługi Elektrotechniczne Sp .z o… (1).

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