Denver Unpaid Invoice Playbook for Contractors

If you are a Denver or Front Range GC, roofer, remodeler, or trade staring at a ghosted invoice, the problem is usually not “one more phone call.” It is a paper trail and a calendar. This playbook is a practical sequence for the first weeks after payment stalls — so you preserve leverage, stop improvising, and know when funding (not DIY lawyering) is the real blocker.

Day 0–7: lock the file, not the friendship

In the first week after a due date passes (or a promised payment date slips):

1. Send one clear written demand — email or letter that states the amount, invoice numbers, project address, and a short payment deadline. Keep the tone professional. Save the send proof.
2. Assemble the package — contract / signed proposal, change orders, pay apps, invoices, proof of completion or progress, photos, texts/emails about payment, insurance estimates if any, and the last day you or your crew were on site.
3. Write down the last day of work / furnish — Colorado mechanic-lien timing often turns on those facts. Do not reconstruct them from memory three weeks later. See the hub: Colorado Mechanic Lien Guide 2026.

Stop “just calling.” Calls without a paper trail burn time and create he-said/she-said.

Day 7–21: escalate on paper, evaluate NOI / lien path

If payment still has not cleared:

• Send a second written escalation that references the first demand and attaches the invoice package.
• Ask counsel (or evaluate with counsel) whether a Colorado notice of intent and lien path fits your facts. The NOI step is easy to skip and hard to unwind — see Colorado Notice of Intent Deadlines.
• If a lien is already recorded, understand that recording is not collecting. Enforcement has its own clock — Mechanic Lien Foreclosure Timeline.

This window is where informal “they’ll pay Friday” stories usually die. Treat it like a file, not a favor.

Denver / Front Range patterns

Metro volume creates familiar patterns: production-builder payment disputes, insurance-heavy roofing where the owner received carrier funds, and remodel jobs where punch lists become excuses for nonpayment. Local habits don’t change the rule: documents and dates still decide leverage. Insurance involvement does not pause Colorado deadline discipline — see also the unpaid / insurance patterns discussed on Contractor Not Getting Paid.

Decision tree: relationship save vs. fundable enforcement

Use a blunt fork:

Situation	Bias
Small balance, ongoing relationship, owner still engaging in good faith	Consider a short, documented settlement path — still keep the paper trail
Material amount owed, silence or stall tactics, retainer cost is why you have not hired counsel	Talk to Colorado counsel about rights and evaluate whether funding is the missing piece
Lien already filed and the six-month enforcement window is approaching	Do not wait out the clock — counsel + funding questions become urgent

Darkwell does not replace your attorney. We may fund eligible enforcement when cost — not legal strategy — is the bottleneck. In select cases, and where state law allows, we may purchase a claim for cash. How that differs from hiring counsel: Mechanic Lien Attorney Alternative.

Common Denver stall scripts (and the paper response)

You will hear versions of these:

• “The draw is coming Friday.” Ask for the draw schedule in writing and keep working the demand clock anyway.
• “Insurance hasn’t paid us yet.” Request proof of claim status; preserve carrier estimate, scope, and any evidence funds already hit the owner. Insurance timing is not your lien calendar.
• “Punch list isn’t done.” Document what remains, what was accepted, and what was already invoiced. Ambiguous punch lists are how final invoices evaporate.
• “We’ll make it up on the next job.” Separate relationship goodwill from this file’s dollars. Rolling debt across jobs is how small balances become company-threatening ones.

For each script, the move is the same: one written reply, attach the invoice package, and keep the calendar honest. If the amount is large enough that you would hire counsel but cannot float the retainer, that is when funding may matter — see Mechanic Lien Attorney Alternative.

What “good enough to review” looks like

Darkwell’s free claim review goes faster when the packet answers five questions: who owes whom, how much is unpaid, what work was done, what the paper trail shows, and where the file sits on NOI/lien/suit. Missing pieces do not automatically kill a review — they do slow it. Incomplete ghost stories with no contract and no dates usually are not fundable.

What to send for a free claim review

If enforcement cost is why the file is stuck, a useful review package usually includes:

• Contract / proposal and change orders
• Invoices and amount still owed
• Last work / last furnish date (best estimate, labeled as such)
• NOI / lien status (none / sent / recorded / suit filed)
• Key emails/texts and proof of completion
• Project address and parties (owner / GC / your entity)

Do not post confidential client or owner details in public forums. Use the form or email below.

What Darkwell is — and is not

Darkwell provides litigation funding. In select cases, and where state law allows, Darkwell may purchase a claim for cash. We are not a law firm and we do not provide legal advice. A free claim review is not an approval, funding guarantee, or legal opinion.

Use the playbook, then get funding if enforcement is the missing piece — submit a free claim review or email intake@darkwellcapital.com.