The Contractor Payment Problem
Contractors face a particularly difficult payment landscape. You purchase materials, pay subcontractors, and invest weeks or months of labor before seeing full payment. When a homeowner or general contractor refuses to pay, you are not just losing revenue, you are absorbing real costs that may already be out of pocket.
Construction and trade payment disputes are among the most common in small claims court. The good news is that contractors have legal protections that many other professionals do not, including mechanic's lien rights, bond claims, and prompt payment statutes.
Common Unpaid Invoice Scenarios for Contractors
Homeowner Refuses Final Payment
The most common scenario: you completed the work according to the contract, and the homeowner withholds the final payment. They may cite minor cosmetic issues, claim they found a "better price" after the fact, or simply stop responding. Some homeowners use the final payment as leverage to demand additional work beyond the contract scope.
General Contractor Does Not Pay Subcontractor
You performed work as a subcontractor, and the general contractor is not passing along payment from the property owner. This is frustratingly common in the construction industry, and it is why mechanic's lien rights exist to protect subcontractors.
Change Order Disputes
The homeowner or GC requested additional work during the project. You performed the work, but now they dispute the change order pricing or claim the additional work was included in the original scope.
Retainage Withheld Beyond Contract Terms
The contract allows for retainage (typically 5-10% of the total), but the client is withholding it long past the contractual release date or final inspection.
What to Include in Your Contractor Demand Letter
Project and Contract Details
Identify the project by address, contract date, and scope of work. Reference the contract number if applicable, and include the total contract value and payment schedule.
Work Completion Documentation
- Completion dates for each phase of work
- Inspection results if applicable
- Sign-off records showing the client approved completed work
- Photographs of completed work (reference them as available upon request)
- Permits pulled and closed as evidence of compliant work
Invoice History and Outstanding Balance
List every invoice submitted, including:
- Invoice number, date, and amount
- Payments received with dates
- Outstanding balance
- Contractual interest or late fees owed
- Materials costs you absorbed
Mechanic's Lien Notice
This is a contractor's most powerful leverage. Your demand letter should state that if payment is not received by the deadline, you intend to file a mechanic's lien against the property. Include:
- The property address and legal description
- Your state's mechanic's lien statute reference
- The deadline for filing (this varies by state, typically 60-120 days from last date of work)
Important: Mechanic's lien filing deadlines are strict. Do not wait until the deadline is about to expire to send your demand letter. Send it early enough to allow time for resolution before you must file.
Payment Deadline and Consequences
Set a deadline of 10 to 15 business days and outline what happens if payment is not received:
- Filing a mechanic's lien on the property
- Filing a complaint with the state contractor licensing board
- Pursuing the claim in small claims or civil court
- Reporting the debt to construction industry credit services
Legal Leverage Points Unique to Contractors
- Mechanic's lien rights: Available in all 50 states, a mechanic's lien encumbers the property title, making it difficult for the owner to sell or refinance until the lien is resolved. This is often the single most motivating factor for payment.
- Prompt payment statutes: Many states have laws requiring timely payment to contractors and subcontractors, with penalties for late payment that exceed standard interest rates.
- Licensing board complaints: Homeowners and GCs who chronically fail to pay contractors may face action from state licensing boards. Mentioning this in your demand letter adds pressure.
- Bond claims: For public projects or bonded private work, you may have the right to file a claim against the project bond.
Industry-Specific Tips
- Photograph everything: Before, during, and after photos are critical evidence in contractor disputes. Reference your photographic records in your demand letter.
- Keep daily logs: A job diary showing dates of work, weather conditions, crew sizes, and work performed is powerful evidence.
- Preserve change order records: Any text message, email, or signed document showing additional work was requested and approved is essential.
- Calculate material costs separately: Break out your material receipts from labor charges. Judges are often more sympathetic to material cost recovery.
Resolution Timeline
- Day 1: Send demand letter via certified mail and email
- Days 2-7: Property owners motivated to avoid liens typically respond quickly
- Days 10-15: Your payment deadline arrives
- Day 20: File the mechanic's lien if payment has not been received or a credible payment plan agreed upon
- Day 30-45: File in small claims or civil court to enforce the lien or collect the debt
When to Involve an Attorney
For claims under your state's small claims limit, you can typically handle the matter yourself. However, consider hiring a construction attorney when:
- The amount exceeds small claims limits (common for contractor invoices)
- Multiple subcontractors are involved in the dispute
- The mechanic's lien filing process in your state is complex
- The client has hired an attorney or filed a counterclaim
- The project involves public works or bonding issues
Many construction attorneys offer free consultations and may take cases on contingency for strong claims.