And how to avoid the surprises that cost GCs real money.
Even experienced contractors can run into insurance problems — not because they’re careless, but because construction risk is complicated. Jobs move fast. Subs rotate. Contracts change. And the insurance you carried last year may not match the exposures you face today.
Over the years, we’ve seen the same mistakes cost contractors time, money, and sometimes
entire projects. The good news? Most of these issues are preventable once you know what to look for.
Here are the mistakes we see most often — and what you can do to avoid them.
1. Being Underinsured on Equipment and Tools
Contractors rely on equipment every single day. But a lot of contractors underestimate the value of what they own or rely on outdated limits that haven’t been reviewed in years.
Common problems include:
- Stolen tools from trucks or job sites
- Damaged equipment that wasn’t scheduled correctly
- Rental equipment without the proper endorsements
- Coverage that stops when equipment moves between sites
Equipment is expensive to replace — and claims add up quickly.
The fix:
Make sure your inland marine / contractor’s equipment policy is accurate, updated, and built around how you actually work.
2. Relying on Certificates Instead of Real Coverage
Certificates of insurance (COIs) create a false sense of security.
A COI tells you a sub had coverage on the day the certificate was issued.
It does not tell you:
- What endorsements are included
- Whether completed operations is covered
- Whether the policy is primary or excess
- If exclusions gut the policy
- Whether coverage was canceled two days later
We’ve seen many GCs learn the hard way that a COI alone doesn’t transfer risk.
The fix:
Review the policy endorsements, not just the certificate — especially for subs on risky trades.
3. Hiring Uninsured or Underinsured Subcontractors
This one causes more claim headaches than almost anything else.
If a subcontractor doesn’t carry the right insurance, the responsibility often shifts to the general contractor. And the GC pays for it through:
- Claims hitting your GL or WC
- Higher premiums at renewal
- Audit charges
- Contract disputes
- Project delays
Big red flags include:
- COIs that don’t meet contract requirements
- Subs who have lapsed or canceled coverage
- Policies missing additional insured or completed ops
- Workers incorrectly classified as “1099”
The fix:
- Create a subcontractor insurance standard and enforce it.
- One uninsured sub can cost far more than the job itself.
4. Not Understanding Insurance Requirements in Contracts
Many contractors sign contracts without fully understanding the insurance language built into them. Unfortunately, project owners are shifting more risk downstream — often without contractors realizing it.
We frequently see requirements for:
- Higher liability limits
- Primary & non-contributory wording
- Waivers of subrogation
- Specific additional insured endorsements
- Pollution or professional liability
- Completed operations extensions
Missing any of these can lead to costly disputes or denied claims.
The fix:
Have someone review your contracts before you sign them — not after there’s a problem.
5. Carrying Liability Limits That Are Too Low for Today’s Claims
Construction claims have grown significantly in cost over the past decade. Medical bills, legal fees, property damage, and jury awards are all trending upward.
Many contractors still carry $1M/$2M limits because “that’s what we’ve always had.”
But the reality is:
- Larger projects require higher limits
- Contracts often demand umbrella coverage
- One serious claim can exhaust a primary policy quickly
The fix:
Review your limits annually — especially if you’re growing, bidding on larger jobs, or taking on new trades.
6. Workers’ Compensation Misclassifications and Audit Surprises
Premium audits can be painful when:
- Payrolls are misreported
- Trades are misclassified
- Uninsured subs get added back to your payroll
- Material costs and labor costs are blended incorrectly
Many contractors are surprised by big additional premiums — not because they did anything wrong, but because the details weren’t tracked clearly throughout the year.
The fix:
Maintain clean records and review classifications regularly. A short mid-year check can prevent big surprises.
7. Ignoring Cyber Risk in Construction
Cyber insurance used to feel like a “tech company” issue. Not anymore.
Contractors are now prime targets because:
- They exchange sensitive project data
- They process large payments
- They rely on email for bids and invoices
- They often use older or unprotected software
Common construction cyber claims include:
- Funds-transfer fraud
- Hacked email chains
- Ransomware blocking project files
- Lost access to estimating and scheduling platforms
The fix:
Make sure cyber is part of your insurance strategy — even if you don’t think of yourself as a digital business.
8. Subcontractor Default Risk (SDI vs. Bonds)
Subcontractor default can derail a project — delays, rework, replacement costs, and unpaid suppliers all funnel back to the GC.
Many contractors aren’t sure when to use:
- A traditional performance bond
- Subcontractor Default Insurance (SDI)
- A hybrid of both
Each tool transfers risk differently, and failing to choose the right one can create gaps.
The fix:
Evaluate your subcontractor risk profile. SDI can be powerful — but it’s not the right fit for every contractor.
9. The Fix: How Smart Contractors Stay Protected
The goal isn’t to buy more insurance — it’s to buy the right insurance and manage risk intentionally.
The contractors who stay best protected typically:
- Use clear subcontractor requirements
- Verify endorsements, not just COIs
- Keep equipment values updated
- Review contracts before signing
- Carry limits that match project scale
- Sync their insurance strategy with their growth strategy
A little clarity goes a long way.
If you're dealing with subs, contracts, or changing project requirements, we can help you tighten up your insurance program before issues arise.