Cash flow is the lifeline of any underground construction company.
But what happens when a prime contractor delays or fails to pay?
For subcontractors working in fiber, HDD, and utility construction, unpaid invoices can quickly become a serious problem — affecting payroll, equipment, and operations.
The good news: you have legal tools and strategies to protect yourself and recover your money.
Why Payment Issues Happen
Before jumping into solutions, it’s important to understand the common causes:
- Delays in approvals from project owners
- Missing or incorrect documentation (redlines, bore logs, photos)
- Disputes over production quantities
- Poor contract terms
- Cash flow problems from the prime contractor
👉 Many of these issues can be prevented — but when they happen, you must act fast.
1. NTO (Notice to Owner) — Your First Line of Protection
The Notice to Owner (NTO) is one of the most important tools available to subcontractors (especially in Florida).
What it does:
- Officially notifies the property owner that you are working on the project
- Protects your right to file a lien later
- Establishes your presence in the payment chain
Key points:
- Must be sent within 45 days of starting work (Florida rule)
- If you don’t send it, you may lose your lien rights
👉 Many subcontractors skip this step — and regret it later.
2. Construction Lien — Your Strongest Legal Tool
If payment is not made, a mechanics lien (construction lien) can be filed.
What it does:
- Places a legal claim against the property
- Prevents sale or refinancing until resolved
- Forces attention from the owner and prime contractor
Impact:
- This is a serious escalation — and often leads to faster payment
- Property owners typically push primes to resolve the issue quickly
Important deadlines (Florida):
- File lien within 90 days of last work performed
3. Claim Against Payment Bond (Public Projects)
If you are working on a public project, you usually cannot file a lien.
Instead, you can:
👉 File a claim against the payment bond
How it works:
- The prime contractor provides a bond guaranteeing payment
- If they don’t pay, you claim directly against the bond
Requirements:
- Proper notices (similar to NTO)
- Strong documentation of work performed
4. Insurance Claims (When Applicable)
In some situations, payment issues are tied to:
- Project disputes
- Damages or delays
- Liability claims
Depending on the case, you may be able to:
👉 Trigger insurance coverage (yours or theirs)
⚠️ This is more complex and usually requires:
- Legal review
- Proper documentation
- Clear evidence of responsibility
5. Demand Letters & Legal Action
Before going to court, many subcontractors use:
Demand Letter
- Formal request for payment
- Often sent by an attorney
- Creates pressure and legal record
Lawsuit
- Final step if all else fails
- Can include:
- Breach of contract
- Unpaid invoices
- Damages
The Biggest Mistake Subcontractors Make
Waiting too long.
Many contractors:
- Trust verbal promises
- Delay sending notices
- Don’t track deadlines
👉 By the time they act, it’s often too late to use tools like liens.
How to Protect Yourself from the Start
Best Practices:
- Always send NTO on every project
- Keep daily production records (footage, handholes, etc.)
- Maintain organized documentation (redlines, bore logs, photos)
- Track approvals and invoices closely
- Understand your contract terms before starting
Documentation = Power
When it comes to getting paid, documentation is everything.
You should always have:
- Signed agreements
- Daily reports
- Proof of completed work
- Communication records
- Invoice tracking
👉 The more organized you are, the stronger your position.
Final Thoughts
Getting paid shouldn’t be a fight — but in construction, it often is.
Subcontractors who understand their rights and use the right tools:
- Protect their cash flow
- Reduce financial risk
- Operate with confidence