Blog & Insights | Procurement Practice

General · 2026-04-23 · Christian Schuhen

Procurement Advisory: The Questions Most People Have — But Rarely Ask

What does procurement advisory cost? When does it make sense? How does the collaboration work in practice? This article answers the questions that public and private contracting authorities most commonly face before a procurement procedure — directly, honestly and without evasion.

Building Cleaning · 2026-04-23 · Christian Schuhen

Tendering Cleaning Services: Twelve Mistakes That Start Before the Contract Is Signed

Most problems in cleaning contracts don't begin at the execution stage – they're embedded in the tender documents from the start. Knowing where specifications typically fall short is the first step toward avoiding costly disputes down the line.

Building Cleaning · 2026-04-23 · Christian Schuhen

Fixed-Price Works, Hour Requirements, and the Legal Limits of Invoice Deductions

Under settled German case law, cleaning contracts are classified as works contracts (Werkvertrag) — what is owed is a clean result, not a set number of working hours. Yet in practice, clients regularly reduce invoices on the grounds that contracted or estimated hours were not delivered. Whether such deductions hold up legally depends less on how the contract is labelled and more on three specific questions: Were the hours expressly agreed as a binding performance obligation? Is the reduction clause sufficiently transparent? And does it survive scrutiny under Germany's standard terms control regime? This article maps the relevant case law — from the 2019 Federal Court of Justice judgment to the diverging Court of Appeal rulings from Hamm, Düsseldorf, and Cologne.

Security Services · 2026-04-23 · Christian Schuhen

Why High-Quality Security Services Begin with the Tender Process

When security services are put out to tender, the quality, reliability and overall security standard of the future service are determined long before the first shift begins. A precise specification, realistic timing and award criteria that go beyond price alone are the foundation of a professional and resilient procurement process.

Procurement Practice First-Hand.

Procurement Advisory: The Questions Most People Have — But Rarely Ask

Tendering Cleaning Services: Twelve Mistakes That Start Before the Contract Is Signed

Fixed-Price Works, Hour Requirements, and the Legal Limits of Invoice Deductions

Why High-Quality Security Services Begin with the Tender Process

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