A subcontractor agreement is a legally binding document between a general contractor and a subcontractor that defines scope, payment terms, and liability. Our construction form library covers every document a contractor, GC, or project manager needs — from lien waivers and change order forms to project invoices and scopes of work — to protect payments and stay legally organised on every job.
The most important contractor guides. Read these first.
Every unwritten change order is a potential unpaid invoice. Here is how to document scope changes correctly so you get paid for every dollar of extra work.
You don't need to spend $500 on a lawyer to protect yourself when hiring a sub. You need to know what the agreement must cover. Here is exactly that.
Construction Bundle
Get every construction document in one download
Subcontractor Agreement, Lien Waiver, Change Order, Invoice + 3 more. $63 individually → $29.00 bundle price. One-time payment.
8 guides covering contracts, forms, and job-site documentation.
Many contractors use these two documents interchangeably — which creates billing confusion and legal risk. Here is exactly what each document should do and how to structure both.
Most construction projects go over budget — not because of bad estimates, but because of poor expense tracking during the project. Here is a system that keeps you in control from day one.
A professional estimate is your first impression and your legal foundation. Here is exactly how to write one that wins bids, protects your business, and gets signed.
If your estimates are losing jobs or leading to disputes, one of these five mistakes is probably the cause. Here is how to fix each one.
Every unwritten change order is a potential unpaid invoice. Here is how to document scope changes correctly so you get paid for every dollar of extra work.
You don't need to spend $500 on a lawyer to protect yourself when hiring a sub. You need to know what the agreement must cover. Here is exactly that.
The scope of work is the most important document on any project. Here is exactly what it should contain and how to write one that prevents disputes.
These two documents serve different purposes on a project. Using the wrong one at the wrong stage creates confusion and gaps in your legal protection.