If you run a construction business in San Diego, you already know the hardest part of the job often isn’t the work — it’s getting paid for it. A general contractor stalls because the owner hasn’t funded a draw. A developer disputes a change order. A customer simply goes quiet at 90 days. Meanwhile your crew, your suppliers, and your equipment rentals all still need to be paid. This guide walks through how San Diego contractors and subcontractors can recover unpaid invoices in the right order — and protect their leverage along the way.
1. Understand the payment chain you’re standing in
Construction money moves down a chain: owner → general contractor → subcontractor → supplier. Before you chase a balance, know exactly where you sit and what the party above you is waiting on. A subcontractor whose invoice is stuck behind a “pay-when-paid” clause has a different fight than a supplier with a direct account. Identifying the real reason for non-payment — cash flow, a dispute, or simple avoidance — tells you which lever to pull first.
2. Protect your California lien rights early
In California, your strongest leverage often comes from mechanics lien law — but only if you’ve preserved it. The 20-day preliminary notice and the deadlines for recording a lien and filing to enforce it are unforgiving. Many San Diego contractors lose their best recovery tool simply by missing a date. Track these deadlines on every job, not just the troubled ones. Even when you’d rather not record a lien, having the right to do so changes how seriously a debtor takes your calls. (This is general information, not legal advice — confirm specific deadlines with your construction attorney.)
3. Tighten your documentation before you escalate
Recovery in construction almost always comes down to the paper trail. Pull together the signed contract, the schedule of values, approved change orders, daily logs, delivery tickets, and every invoice and statement you sent. Disputes that feel like a stalemate often resolve quickly once one side produces clean, organized documentation the other side can’t argue with.
4. Make a professional, documented demand
Before things get adversarial, send a clear written demand that states the amount owed, the work it covers, the supporting documents, and a firm deadline. Keep it professional — San Diego’s contractor network is small, and the GC you’re fighting today may be the one awarding your next bid. A measured, well-documented demand frequently moves accounts that ignored a stack of routine invoices.
5. Know when to bring in a commercial collections agency
If an account is 90+ days past due, has gone quiet, or is getting tangled in disputes you don’t have time to work, that’s the signal to escalate. A commercial collections agency adds a credible, neutral third party to the equation — one that knows how to work the payment chain, negotiate with controllers and owners rather than an AP inbox, and escalate professionally without torching the relationship. Bringing in help early, while your lien rights and documentation are still strong, almost always recovers more than waiting until the trail goes cold.
HP Sears specializes in exactly this: commercial-only, B2B construction recovery across San Diego County, on a contingency basis — you don’t pay unless we collect. Learn more on our San Diego construction debt collection page.
Frequently asked questions
How long should I wait before sending an unpaid construction invoice to collections?
Most San Diego contractors escalate once an account passes 90 days with no credible payment plan, or sooner if the debtor goes silent. The longer you wait, the weaker your leverage and the colder the trail.
Will using a collections agency hurt my relationship with the contractor?
Not if it’s done right. HP Sears uses a firm-but-professional, compliance-driven approach designed to preserve the commercial relationship wherever possible — not consumer-style pressure tactics.
Do I lose my lien rights if I send the account to collections?
No. Collections and lien rights work together. In fact, preserved lien rights strengthen a collections effort. Keep tracking your statutory deadlines and confirm specifics with your attorney.
Recover your San Diego construction invoices
If you have unpaid invoices from a San Diego GC, developer, owner, or customer, HP Sears can help. Request pricing or contact our team for a free consultation. See also our San Diego market hub.