E-signatures for contractors: get estimates, change orders, and subcontractor agreements signed from the job site
Contractors lose days waiting on signatures. Here's how to get estimates, change orders, and sub agreements signed from a phone — same day, with a record of who approved what.
Construction runs on paperwork that has to be signed before anyone can pick up a tool. The estimate the homeowner has to approve. The change order for the rot you found behind the shower wall. The subcontractor agreement for the electrician starting Monday. The certificate of insurance acknowledgment before anyone sets foot on site. None of it is complicated — but every one of those documents is a day of work that doesn't start until someone signs, and the person who has to sign is at their own job, not standing next to your truck with a pen.
Here's how to move contractor paperwork to e-signature so it comes back the same afternoon instead of the following week.
The documents that hold up a job
For most residential and small-commercial contractors, the signing list is short and repeats forever:
- Estimates and proposals — the client approves the scope and price before you order material.
- Change orders — the one that matters most, because it's the one that becomes an argument later.
- Subcontractor agreements — scope, rate, and schedule for every trade you bring on.
- Site access and safety acknowledgments — signed before anyone works on the property.
- Lien waivers and completion sign-offs — the client confirms the work is done before final payment.
- W-9s and onboarding forms — collected once from every sub you pay.
Every one of those is a PDF you send, drop a couple of fields on, and get back signed — the workflow walked through step by step in how to send a document for electronic signature.
The change order is the whole reason to do this
Verbal change orders are how contractors lose money. You find a problem, the client says "yeah, do it," you do it, and three weeks later the invoice arrives at a number nobody remembers agreeing to. The fix isn't more paperwork — it's paperwork that takes ninety seconds instead of a trip back to the office.
With e-signature, the sequence changes: you find the rot, you write up the change order on your phone, you send it, and the client signs from their inbox at lunch. Work restarts that afternoon with a signed record of the scope and the number. What you're really buying is the ability to get the signature while the conversation is still fresh — before the client has moved on and stopped answering.
Signing from a phone, on a roof, without an account
Contractor signing has a specific constraint: nobody involved is at a desk. The client is at work. The sub is on another site. You're in an attic. Any tool that asks either party to create an account, remember a password, or install an app is going to fail in exactly that environment.
On Signed, the other person gets an email with a link, opens it in whatever browser is already on their phone, signs, and it's done — no account, no app, no password. Why that single detail decides whether documents actually come back is the argument in why your signers should never need an account. If you just need to sign something yourself — a COI acknowledgment, a supplier form — the free self-sign tool handles it in the browser with no setup at all.
Templates: the estimate you send four times a week
Your estimate doesn't change much from job to job. Neither does your sub agreement. Setting each one up once as a reusable template — fields already placed, signing order already set — turns every future send into: type an email address, hit send. The full workflow is in reusable e-signature templates.
This matters more for contractors than most trades because your volume is spiky. A quiet February and a June where you're sending three estimates a day should cost you the same amount of effort — and, ideally, the same amount of money. Which brings up the thing most e-signature pricing gets wrong for this business: why unlimited documents matters more than the headline price.
Multiple signers and signing order
Plenty of contractor documents need more than one signature. A sub agreement needs you and the sub. A change order on a couple's remodel often needs both homeowners. A commercial job might need the client, the GC, and you, in that order.
Signed handles this with signing order/routing — you set who signs first, and each person is emailed only when it's their turn, so nobody sees a half-finished document or signs out of sequence. The mechanics are in how to collect signatures from multiple people, and the field reference is in Sending & signing.
Chasing the one that's still not signed
Every contractor has an estimate sitting unsigned somewhere while material prices move. Automatic reminders handle the follow-up you'd otherwise have to remember — Signed re-emails the signer on a schedule you set, and you can put an expiration date on the document so a stale estimate doesn't get signed at last quarter's pricing. The setup is in how to chase unsigned documents. The status dashboard shows you at a glance which documents are sent, viewed, signed, or completed — so "did the Hendersons ever approve that?" is a look, not a phone call.
The record, when it's disputed
Construction disputes are almost always about scope: what was agreed, and when. Every completed document on Signed carries a tamper-evident Certificate of Completion — the signer's name and email, the timestamp, and the IP address of the signing, sealed against later edits. That's what turns "they approved the change order" into something you can produce. What's in it is broken down in the audit trail explainer.
Signatures collected this way are designed to satisfy the US ESIGN Act and UETA — the framework explained in are electronic signatures legally binding?. Worth being precise, though: a valid signature and an enforceable contract are two different questions. Construction contracts carry state-specific requirements — notice periods, mechanics-lien rules, home-improvement-contract disclosures — and e-signing doesn't change any of them. Have your contract templates reviewed by a lawyer in your state; this is general information, not legal advice.
What it costs
Signed is $9.99 per seat per month — one plan, unlimited documents, month-to-month, no annual contract. A seat covers whoever sends the paperwork; clients and subs never need an account or a seat, so a two-person shop pays for two people no matter how many parties sign. Self-signing is free forever with no account. See pricing for the full breakdown, Billing & plans for how seats work, and the DocuSign comparison for the side-by-side.