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Ardeyschule, Oberstr. 51, 45134 Essen, Renewal of the ENS system
Ardeyschule, Oberstr. 51, 45134 Essen, Erneuerung der ENS-Anlage — original title
Your path to submission
- Deadline: 11 November at 10:30 — 10 days left.
- You submit on evergabe.NRW — not here and not by e-mail. ↗ Free bidder account on the cosinex platform required (created instantly); offers go through the bidding tool, usually plain text form suffices — no qualified signature. Sort out account and signature first — not on submission day.
- Collect your evidence — use the eligibility analysis on this page: it lists the requirements and, for known certificates, how to get them.
What the buyer is looking for
Type of service Renewal of the ENS plant Scope of the service The real estate industry of the city of Essen intends to expand at the Ardeyschule site at the end of 2026 - beginning of 2027. The school will be extended by an extension. For the expansion, a company other than GÜ is commissioned. The stock will be updated to ENS. The headquarters are in the extension building. The storey heights are between 3.0 m and 3.5 m Parking for ageing and demolition are possible in coordination on the schoolyard. Concrete, masonry, plasterboard are to be expected for the fastening of assemblies or other measures. Since pollutants are to be expected in the school building, it must be agreed in advance whether the BT 30 method according to TRGS 519 is used for boreholes. A corresponding certification is required and to prove the offer. × Execution times must be coordinated with the Immo, FB40 ,…
Show full description
… specialist planner, school management and caretaker. The work must be planned and carried out in such a way as to ensure that the load on users is as low as possible. Electroacoustic system An ELA system is available in the inventory. This will be replaced by a new headquarters in the extension building. The old control center converted to the E30 shunting manifold. The entire school has no connection to the fire brigade and only a house alarm. The existing speakers are tested for function.
Contract
Type of service
Clement What the numbers say about this buyer
- In this sector the buyer awards roughly every month (200 awards, most recently October 2026) — the next award is due around November 2026 by that rhythm. The last award went to Gebhardt und Weiterer GmbH.n = 200
- The median procedure drew 6 bids (283 procedures with a bid count); 19% ended with a single bidder. Sector: median 4 bids.n = 283
- 40% of this buyer's awards went to companies that had already won here before (286 awards since 2017, spread over 171 companies). 60% went to new names.n = 286 awards since 2017
- The award came in at a median 76% of the estimated value (67 awards with both estimate and value) — pricing at the estimate is usually too high here. Sector: 89%.n = 67
- Across 7 procedures with structured selection criteria, this buyer most often required: References: works (7 of 7), Share of subcontractors (6 of 7), Professional liability insurance (5 of 7), Minimum turnover in the contract field (4 of 7).n = 7
From this buyer's documented awards; comparison values from the same sector and country. Not a forecast, not legal advice. As of 01/11/2026.
Eligibility analysis from the tender documents
Tender documents — direct download
Part of a larger project
- Oberstr. 51, 45134 Essen, Erneuerung der ENS-AnlageDeadline 11 Novthis lot
- Oberstr. 51Deadline 11 Nov
Who has won at this buyer so far
Across all contract types of this buyer — not just this sector. A city buys software and fire engines through the same purchasing office.
| Company | Awards | Period |
|---|---|---|
| Rütten Lüftungsbau GmbH & Co. KG | 6 | 2015–2024 |
| Alfred Pieper GmbH · Hamm | 6 | 2024–2026 |
| Portawin GmbH | 5 | 2025–2026 |
| Heep GmbH · Essen | 5 | 2022–2026 |
| Portawin Kriege GmbH · Essen | 5 | 2007–2023 |
How often this buyer tenders this kind of work
Contracting authority contact
Tactics
When this buyer has awarded in this sector, usually 5 or more bids came in. Many compete here — price and references decide. (Based on 249 completed awards — not a statement about this procedure.)
This procedure allows 21 days between publication and deadline — typical in this country is 32 (median of 20,496 procedures). Much tighter than usual: the first week counts.
Foreign bidders
In Germany · Construction work, 687 contracts went to foreign companies over the last 3 years (of 244,229 recorded awards) — mostly from Austria, France, Poland.
How to bid
Guide: how to apply on cosinex Vergabemarktplatz / DTVP → Registration, signature, fees — from the operator's bidder manual.
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