The Aperlena Verdict
Open raceNo supplier dominates: 23 different companies have won the last 25 comparable contracts from this buyer over 5 years. This is a genuinely open race.
Based on 25 comparable awards by this buyer in this sector over 5 years. Every verdict is recorded before the outcome and graded against the award notice. How we score ourselves.
Summary
Machine-generated summaryThe buyer invites applications for a public tender to install complete ventilation and air conditioning systems during the conversion of House 6 into a gatehouse building at the forensic psychiatric clinic Schloss Haldem. Works include a combined supply and extract air unit with heat recovery of about 1,850 m3/h each, including heating, cooling, controls and switch cabinet, a duct fan and a room fan, about 106 m2 of rectangular ducts and about 118 m of spiral-wound ducts with fittings, air outlets, dampers, volume flow limiters, louvre flaps and silencers, fire dampers with installation and sealing work, duct insulation, and two split cooling systems with R32 units. Works are to start on 30 November 2026. Applications must include a reference for comparable work from the last three years and a short company profile or company website.
Description
Official source
Source: Vergabemarktplatz NRW (open data satellites)
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Last verified against Vergabemarktplatz NRW (open data satellites) 2 weeks ago
More from this buyer
Full buyer profile40 open tenders right now
- Fibre optic - Klinik Marl-Sinsen; construction of a new acute care ward (Elisabethklinik Dortmund); lot VE 01 civil engineering works; 26-220 OE 6 days left
- Burg Hulshoff; Conversion into a cultural centre - Outer bailey; Joinery works VE 3.28; 26-255 OE 6 days left
- LWL forensic psychiatric clinic, Schloss Haldem; conversion of House 6 into a security gatehouse; ventilation and air conditioning systems 6 days left
Who usually wins this buyer's contracts in this sector
| Company | Wins | Total awarded | Last win |
|---|---|---|---|
| Eiffage (HLS) Infra-Hochbau GmbH; NL Herten für Branche HLSK | 2 | €1.3M | Jul 2026 |
| Daldrup & Söhne AG | 2 | €1.3M | Jun 2026 |
| Haustechnik-Eberlein GmbH | 1 | €1.8M | Jul 2026 |
| Ventker Metallbau GmbH & Co. KG | 1 | €1.4M | Aug 2026 |
| Sauer & Sommer GmbH | 1 | €915,940 | Jan 2026 |
Based on 25 awards with a linked company profile over the last 5 years.
What this buyer has paid before
Based on 23 comparable contracts this buyer awarded in this sector over the last 4 years.
- Lower quartile
- €197,318
- Median award
- €498,611
- Upper quartile
- €704,786
Most recent awards
- Metalwork - LWL Museum of Natural History with Planetarium, Münster; Forum Naturwissenschaften; metalwork and glazing works; 26-145 E €1,415,506
- Sonstige Elektroinstallationsarbeiten - LWL - Klinik Herten; Neubau Gerontopsychiatrisches Zentrum GPZ; Gebäude- und Anlagenautomation; 26-117 E €279,910
- Gipskartonarbeiten - LWL - Klinik Herten; Neubau Gerontopsychiatrisches Zentrum GPZ; Trockenbauarbeiten; 26-095 E €498,611
- Installation von Zentralheizungen - LWL - Klinik Herten; Neubau Gerontopsychiatrisches Zentrum GPZ; Wärmeversorgungsanlagen; 26-090 E €599,626
- Installateurarbeiten und Verlegung von Abwasserleitungen - LWL - Klinik Herten; Neubau Gerontopsychiatrisches Zentrum GPZ; Sanitärarbeiten; 26-091 E €699,856
Award values as published by the official sources. Use them as a guide, not a rule: scope, lots and duration differ between contracts.
Similar tenders
Market context
- Avg. open tender · Construction work
- €31,406,281
- Buyer track record on Aperlena
- 143 notices tracked · 60 awarded
- €14,228,756 in awarded contracts
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