Most SME contractors blame the project when margins go missing. Wrong place to look. In most engagements we take on, the money is leaving through the contract, not the site. Unbilled variations. Unrecovered preliminaries. Retention sitting in client accounts past its release date.
Key takeaways
- Margins usually leak through the contract, not the site - unbilled variations, unrecovered preliminaries, and retention stuck past its release date.
- The most common margin leaks are administrative: unnotified variations, unchecked preliminary costs, and retention nobody is tracking.
- Treat the contract as a live instrument to reread constantly, not a signed document filed away after signing.
- CALIM's engagements begin by mapping what is owed, what has lapsed, and what can still be recovered.
The contract is a meter. It measures everything - what you are owed, what you have conceded, and what is expiring while nobody watches. But a meter is only useful if someone reads it.
In our experience, the most common margin leaks are not dramatic - they are administrative:
- A variation executed but never formally instructed.
- A preliminary cost absorbed because nobody checked whether the contract allows recovery.
- A **retention held three months past its release date** because the QS assumed someone else was tracking it.
These are not legal failures. They are operational ones. And they are fixable without a single change to the contract itself - just a change in how the contract is managed day to day.
The discipline of reading the contract as a live instrument - not a signed document filed in a drawer - is what separates contractors who recover margin from those who quietly surrender it.
At CALIM, this is where every engagement begins: reading the meter. Mapping what is owed, what has lapsed, and what can still be recovered. The results are usually significant - and almost always surprising to the contractor.
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Reviewed for accuracy by CALIM's senior leadership: Dr. Varghese Koshy Panicker (Founder & CEO), Adv. Jayakumar Madapattu (Co-Founder & CLO), Tins Varghese (Co-Founder & CCSO).
This article is general information about construction contract practice, not legal advice. Entitlement, notice requirements and time bars turn on the specific wording of your contract and the governing law, which vary between projects and jurisdictions. Obtain advice tailored to your contract before acting on anything set out here.

