The best e-signature app for construction: subs, lien waivers and change orders

The construction signing cycle

• SubcontractsScope, schedule, retainage and insurance requirements, signed before the sub mobilizes. Start from a subcontractor agreement.
• Lien waivers every drawConditional with the pay application, unconditional once the check clears, from every sub, for every draw. See what a lien waiver is.
• Change ordersAdded scope, cost and days, signed by the owner before the work, and passed down to the affected subs.
• Field sign-offsToolbox talks, site orientation and punch list walkthroughs, signed on a phone or tablet on site.

Five options compared

How each one handles the cycle

JobTread: if you want one system for the whole job

JobTread is construction management software, and its menu lists contracts and e-signatures under sales and estimating. The monthly plan is $199 a month plus $20 a month for each internal user from 2 to 10, with every feature included, and customer and vendor portal users are free and unlimited, so subs and owners don't cost a seat. There's no free trial; JobTread offers a 30-day money-back guarantee on monthly plans instead. Choose it if you're ready to run estimates, schedules and documents in one place.

DocuSign: the lender and owner standard

On larger projects, owners, lenders and title companies may send their own documents through DocuSign, so using it keeps your side familiar to them. Standard is $25 per user a month billed yearly, or $30 on an annual plan paid monthly, with 100 envelopes per user a year. Signer attachments, handy for collecting an insurance certificate with the subcontract, and bulk send for lien waivers both need Business Pro at $40 billed yearly.

Adobe Acrobat: for the plan room

If your estimators and PMs already mark up drawings and specs in Acrobat Pro, its e-signature requests, web forms and sending in bulk come with the same license, at $23.99 per license a month for teams on an annual plan. In-person signing in the field isn't included with Acrobat Pro on its own, per Adobe's July 2026 announcement.

Dropbox Sign: alongside the shared drive

If your project folders live in Dropbox, Dropbox Sign's Standard plan adds unlimited signature requests, templates and bulk send for up to 250 people per send, enough for most subcontractor lists. In-person signing on a tablet is for single-signer documents, which covers a site orientation sign-off but not a two-party change order.

SignMaster: the paperwork, not the project

SignMaster handles the signing cycle and leaves scheduling, estimating and pay applications to your other tools. Each draw, bulk send lien waivers to every sub from one spreadsheet, with each row filling that sub's name, amount and through-date into the template's text boxes. An attachment field collects the insurance certificate with the subcontract. Change orders go out from the iPhone or iPad app or get signed in person on site, and signing pages come in 6 languages, Spanish included. No Android app, and no offline signing.

Lien waivers each draw, step by step

1. 1

   Build one waiver template per type

   Conditional and unconditional, progress and final, using the form your state requires where it has one. Leave the sub's name, amount and through-date as fields.

2. 2

   Export the draw to a spreadsheet

   One row per sub with their email and this draw's amount. From Excel, save it as CSV UTF-8.

3. 3

   Send, then track the stragglers

   Each sub gets their own envelope. Rows with problems are held back to fix, and the batch results list each envelope's status, so you know who has signed before you release payment.