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Extraction vapours house 7
Absaugung Dämpfe Haus 7 — original title
Your path to submission
- Deadline: 16 November at 11:00 — 15 days left.
- The submission point is stated in the notice (link on this page).
- 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
The Dortmund Chamber of Crafts intends at its location Barbarastr. 7 to build a freestanding new building in Dortmund. · This service description records the necessary work for the extraction vapours house 7: · Supply and installation of an extraction system for plastic vapours . With centrifugal fan incl. sound insulation hood, system/fan control, rectangular and spiral folding casings, ventilation grilles, throttle valves, roof feedthrough, pipe silencer, internal electrical installation, adjustment/commissioning, instruction, factory/revision documents and ancillary services.
Contract
Type of service
Clement What the numbers say about this buyer
- In this sector the buyer awards roughly every 2 months (40 awards, most recently September 2026) — the next award is due around November 2026 by that rhythm. The last award went to Fliesen u Naturstein von Hatzfeld.n = 40
- 33% of the bids received came from small and medium-sized enterprises (7 procedures with a bid mix). Sector: 87%.n = 7
- 45% of this buyer's awards went to companies that had already won here before (56 awards since 2022, spread over 27 companies). 55% went to new names.n = 56 awards since 2022
- The median procedure drew 3 bids (56 procedures with a bid count); 21% ended with a single bidder. Sector: median 4 bids.n = 56
- Across 19 procedures with structured selection criteria, this buyer most often required: Quality management (1 of 19), References: works (1 of 19).n = 19
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
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 |
|---|---|---|
| Leniger Sanitär- Heizungstechnik GmbH · Paderborn | 4 | 2026 |
| Rundholz GmbH & Co.KG · Dortmund | 4 | 2026 |
| Helmut Reiter GmbH · Gera | 3 | 2025 |
| Steckerfertig GmbH | 3 | 2025 |
| MK Haustechnik GmbH · Kulmbach | 3 | 2026 |
How often this buyer tenders this kind of work
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 41 completed awards — not a statement about this procedure.)
This procedure allows 26 days between publication and deadline — typical in this country is 32 (median of 20,496 procedures). Much tighter than usual: the first week counts.
The deadline falls on a Monday — your last full working day is the Friday before. Have evidence and guarantees together by Thursday.
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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