Construction demand letter

    Owed money on a finished job?

    You did the work. They haven't paid. A formal demand letter citing your state's lien law, mailed USPS Certified with instant tracking and a Certificate of Mailing.

    $79· Preview free before anything mails
    Send My Demand Letter

    What it is

    A formal next step when the invoice is overdue.

    A preliminary notice protects a job before trouble. But if an account's already overdue — the calls ignored, the invoice buried — the next step isn't another phone call. It's a formal, attorney-vetted demand letter, on the record, by certified mail.

    It states what you're owed, sets a deadline to pay, and creates the documented proof that moves an account before it becomes a write-off. Most disputes end right here — before anyone hires a lawyer.

    What it is not

    You stay in control.

    No. We prepare and mail your demand letter — attorney-vetted, certified, on the record. It's your letter, sent professionally. We're not a collection agency and we don't take a percentage; it's a flat $79.

    What's included

    Everything you need to put it on the record.

    Attorney-vetted demand letter, drafted from your details

    USPS Certified Mail with tracking

    Certificate of Mailing for your records

    Preview free before you pay

    Flat $79 — one-time, no subscription

    How it works

    Details in. Preview. Certified mail.

    1

    Enter Your Job Details

    Project address, owner info, and amounts.

    2

    Review Your Notice

    Preview your attorney-vetted, state-compliant document before you pay.

    3

    We Mail It Certified

    We print, stuff, and send via USPS Certified Mail with tracking.

    Demand letters follow the same 3 steps — details in, preview free, we mail certified.

    “Notice worked, I got paid.”

    Florida contractor · Verified outcome, July 2026

    Choose your next move

    Which one is you right now?

    Already owed money?

    You did the work. They haven't paid.

    A formal demand letter citing your state's lien law, mailed USPS Certified with tracking and a Certificate of Mailing.

    $79 · Preview free before anything mails

    Send My Demand Letter

    Starting a new job?

    Protect it before there's a problem.

    File your preliminary notice in the first days of the job and keep your lien rights alive for the whole thing.

    $24.99 · $39.99 in Texas · Preview free

    Protect a New Job

    Not sure where you stand? Check your deadline free — no signup →

    Answers

    Frequently asked questions

    What's the difference between a notice and a demand letter?

    A preliminary notice is prevention — you file it early to protect your lien rights on a job. A demand letter is for when you're already owed: it formally demands payment, sets a deadline, and documents everything by certified mail. Notice protects the next job; demand fights for the last one.

    When should I send a demand letter instead of a notice?

    If your notice deadline has passed, or an invoice is overdue and calls aren't working, the demand letter is your tool. If you're still inside the filing window on a job, file the notice first — it's the stronger protection.

    Does LienFlash collect the debt for me?

    No. We prepare and mail your demand letter — attorney-vetted, certified, on the record. It's your letter, sent professionally. We're not a collection agency and we don't take a percentage; it's a flat $79.

    Already did the work?

    Put the overdue job on formal notice.

    Preview your demand letter free. Pay only when you are ready to send.

    Send My Demand Letter