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BLB NRW BI / Bielefeld / Framework contract Roof suitability Photovoltaic testing
BLB NRW BI / Bielefeld / Rahmenvertrag Dacheignung Photovoltaiksprüfung — original title
Your path to submission
- Deadline: 26 November at 09:00 — 25 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 — the eligibility requirements are listed on this page; for many of them the analysis explains how to obtain them.
What the buyer is looking for
Type of service Framework contract Roofing assessment Photovoltaics Scope of service Tender for a 2-year framework contract (without renewal option); with the subject of the inspection of roofs with regard to the technical suitability with regard to a future installation of photovoltaic installations (statics and roof condition assessment) that arise on various properties within the scope of the Bielefeld branch of the BLB NRW.
Contract
Type of service
Clement What the numbers say about this buyer
- In this sector the buyer awards roughly every month (113 awards, most recently August 2026) — by that rhythm the next award was due around October 2026. The last award went to Wandtke Heinold Projektmanagement Beratende Ingenieure PartGmbB.n = 113
- 49% of this buyer's awards went to companies that had already won here before (381 awards since 2019, spread over 195 companies). 51% went to new names.n = 381 awards since 2019
- The award came in at a median 72% of the estimated value (24 awards with both estimate and value) — pricing at the estimate is usually too high here. Sector: 88%.n = 24
- The median procedure drew 3 bids (369 procedures with a bid count); 28% ended with a single bidder. Sector: median 3 bids.n = 369
- From notice to award takes a median 83 days here (37 procedures). Sector: 123 days.n = 37
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.
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 GmbH | 11 | 2020–2025 |
| Schulz Putz GmbH | 6 | 2025 |
| IWA Ingenieurgesellschaft für Wasser- und Abfallwirtschaft mbH & Co. KG · Bad Oeynhausen | 6 | 2025 |
| Michael Richter Tiefbau GmbH · Paderborn | 6 | 2010–2024 |
| SCHÜTT INGENIEURBAU GmbH & Co. KG · Münster | 6 | 2018–2025 |
How often this buyer tenders this kind of work
Contracting authority contact
Tactics
When this buyer has awarded in this sector, there was usually a single bid in the end. A solid bid has a real chance here. (Based on 142 completed awards — not a statement about this procedure.)
This procedure allows 30 days between publication and deadline — typical in this country is 32 (median of 20,496 procedures). A normal window for this market.
Foreign bidders
In Germany · Architecture & engineering, 404 contracts went to foreign companies over the last 3 years (of 111,169 recorded awards) — mostly from Austria, Switzerland, 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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