Construction insurance owner requirements are usually treated as an administrative box. A certificate arrives, somebody files it, and nobody reads it against what the contract asked for. The gap between those two documents is where an uninsured loss sits.
What the contract is asking for
A construction contract normally requires the contractor to carry several policies and to evidence them. The usual list includes general liability, automobile liability, workers compensation, excess or umbrella coverage, and sometimes professional liability where the contractor carries design responsibility.
Separately there is builders risk, which covers damage to the work itself during construction and which may be carried by either party depending on the deal.
For each policy the contract normally states a minimum limit, whether the owner is to be named as an additional insured, whether the coverage is primary and non contributory, and whether the insurer waives rights of subrogation against the owner.
Those four attributes matter as much as the policy itself, and they are the ones most often missing from what actually arrives.
This note describes what the requirements are and how to check what you received against what you asked for. Whether a particular policy responds to a particular loss is a question for your broker and your counsel, and nothing here is advice on coverage.
The commercial point is narrower and worth making: the checking is rarely done, and it takes an hour.
Where construction insurance owner requirements usually fall short
Limits below the requirement. Common on subcontractor certificates rather than on the general contractor one, and it is the subcontractor tier where most of the work actually happens.
Additional insured status missing or narrower than asked. A certificate may say additional insured without the endorsement that actually provides it, and the endorsement form matters.
Completed operations not included. Coverage during construction is one thing and coverage for something that fails after completion is another. This is the gap that shows up years later.
Waiver of subrogation absent. Without it, an insurer paying a loss may pursue the owner for it.
Builders risk with an owner sized deductible. A large deductible transfers the first slice of every loss back to somebody, and which party is frequently not stated clearly.
Policies that expire mid project. Annual policies against a two year job, with nobody tracking renewal.
The certificate is not the policy
This is the practical point that changes how the checking is done.
A certificate of insurance is a summary prepared by a broker. It is evidence that a policy exists and it usually states limits and dates. It is not the policy and it does not by itself confer any status on the owner.
Additional insured status comes from an endorsement to the policy, and the form of endorsement determines what it covers and for how long. A certificate that lists the owner as additional insured without the endorsement attached is a statement rather than a grant.
The same is true of waiver of subrogation and of primary and non contributory wording. All three are policy terms and all three appear on certificates as check boxes.
So the check that is worth doing asks for the endorsements rather than only the certificate, at least for the general contractor and for the largest subcontractors.
That request is ordinary, brokers deal with it constantly, and it is much easier to make before signature than after a loss.
A worked example
Illustrative figures. Not taken from any client project and not a quotation.
A project where the contract requires general liability at $2 million per occurrence with the owner as additional insured on a primary and non contributory basis, including completed operations, from every subcontractor.
Certificates are collected from twenty six subcontractors and filed.
Read against the requirement: four carry limits of $1 million rather than $2 million. Seven list additional insured status with no endorsement provided. Eleven make no reference to completed operations. Three policies expire nine months before substantial completion with no renewal tracked.
None of this is discovered, because certificates are filed rather than read.
Two years after completion a water related failure traced to one of the eleven produces a claim. Whether coverage responds is a question for the insurers and the lawyers, and the owner discovers its position at exactly the wrong moment.
The check that would have found all four categories is one afternoon with a spreadsheet, done before the subcontractors are on site.
Builders risk, which is its own subject
Worth separating because it behaves differently from the liability policies.
Builders risk covers physical damage to the work during construction: fire, wind, water, theft and similar. It can be carried by the owner or by the contractor and the contract says which.
Three things are worth establishing whichever party carries it. What the deductible is and who bears it, because on large policies the deductible is a substantial sum and a water damage deductible is frequently separate and higher. Whether the policy covers materials stored off site and in transit, which matters on any job with significant prefabrication or long lead equipment sitting in a warehouse. And when coverage ends, which is usually at substantial completion or occupancy, and whether the permanent property policy starts at the same moment.
The third is the one that produces a real gap. A building occupied in phases can sit between two policies, with the builders risk considering it occupied and the property policy considering it under construction.
That question is answerable in advance by putting both brokers in the same conversation, which is a phone call nobody makes until something happens.
Who carries the policy is worth a moment as well. An owner carried builders risk gives the owner control of the claim and the deductible, and it removes a markup layer. A contractor carried policy is administratively simpler and puts the party managing the site in charge of the loss.
Neither is automatically right, and the choice interacts with the rest of the contract more than it appears to, because the deductible on a large loss is a real number and the contract has to say who funds it. The general principle of reading two clauses together rather than separately applies here as much as anywhere, and it is the same habit described in GMP against lump sum and cost plus.
What to do before you sign
- List what the contract requires: policy, limit, additional insured, primary wording, waiver, completed operations.
- Check every certificate against that list, including subcontractors, not only the general contractor.
- Ask for the actual endorsements for the general contractor and the largest subcontractors.
- Track policy expiry dates against the project duration and set a reminder for each.
- Establish who carries builders risk, what the deductible is and who bears it.
- Confirm builders risk covers off site storage and transit if the job needs it.
- Put both brokers in one conversation about when builders risk ends and property coverage starts.
Item two is the whole exercise and it is done on almost no projects, because certificates arrive as administration and get filed by whoever opens the envelope.
Item seven is the cheapest and the one that closes the gap nobody expects. It is a phone call and it is best made before the first phase is occupied rather than after.
The scope options for this reading sit in the review packages.
What we do
We build the requirement table from the contract and check what arrived against it, line by line, including the subcontractor tier. The output lists every certificate that does not match and what is missing from it. We do not advise on coverage or on whether a policy responds to a loss, which belongs to your broker and your counsel. The work is part of the readiness review.
Questions people ask
Is a certificate of insurance enough evidence?
It is evidence that a policy exists and it is not the policy. Additional insured status, waiver of subrogation and primary wording all come from endorsements, and a certificate lists them as check boxes. For the main parties it is worth asking for the endorsements themselves.
Which certificates are most often wrong?
Subcontractor ones, which is unhelpful because that tier is where most of the work happens. Limits below the requirement, additional insured claimed without an endorsement, and completed operations omitted are the three that recur, and none is visible unless somebody reads them.
What is the gap between builders risk and property insurance?
The moment coverage transfers, usually at substantial completion or occupancy. A building occupied in phases can fall between two policies, with one treating it as occupied and the other as under construction. Putting both brokers in one conversation beforehand closes it.
This is general information about construction contracts and is not legal advice.