How to write a scope of work for a trade job
A good scope of work says what will be delivered, what is not included, when each stage is done and how you will both know it is finished. Written before anyone bids, it prevents most arguments later.
The short version
Disputes on small and mid-size jobs rarely start with bad work. They start with a sentence that meant one thing to the owner and another to the contractor: "install the new units" (including the disconnects?), "repaint the lobby" (including the ceiling?). A scope of work removes that gap by writing the answer down before the price is set.
The five parts of a scope
- Deliverables. The things that will exist when the job is done, with quantities, sizes, models or finishes. "Six illuminated fascia signs, 24 inches tall, white LED" beats "new signage".
- Exclusions. What is not included. This is the part most scopes skip, and the one that prevents the most disputes. Say what is excluded even when it seems obvious.
- Responsibilities of others. What the owner or another trade must provide, such as power at the sign location, access to the roof or a permit.
- Milestones. The stages of the work, each with a clear finish line, so progress can be seen and confirmed along the way.
- Acceptance criteria. How the owner will decide a deliverable or milestone is complete: a test, a photo, a walkthrough, a signed form.
A worked example
This is an illustration, not a template to copy. The job: install six illuminated fascia signs on a storefront.
| Part | Example wording |
|---|---|
| Deliverables | Supply and install six illuminated fascia signs per the approved artwork. Connect each to the existing sign circuit and commission the lighting. |
| Exclusions | New electrical circuits or panel work. Structural reinforcement of the fascia. Landscaping or sidewalk repair. Removal of old signs beyond the six locations shown. |
| Responsibilities of others | Owner supplies approved artwork and building access during agreed hours. Owner confirms an existing sign circuit has capacity. |
| Milestones | 1. Site survey and shop drawings approved. 2. Signs fabricated and delivered. 3. Installed and powered. 4. Walkthrough complete and deficiencies closed. |
| Acceptance criteria | All six signs light evenly with no flicker. Photos show each sign mounted and sealed. Owner signs off the walkthrough list. |
Common mistakes
- Describing the goal instead of the work ("make the entrance look better").
- Leaving exclusions out because the contractor "knows".
- Milestones with no finish line, such as "work in progress".
- Giving every bidder a different description of the same job.
- Changing the scope in a phone call with no record.
How ScopeMark helps
- 1
Describe the job
Type a sentence, or answer a few guided questions. ScopeMark's AI asks what it needs and drafts the scope: deliverables, exclusions, milestones and acceptance criteria. It is included on every plan.
- 2
Edit every line
The draft is a starting point. You change what is wrong, add what is missing and confirm the exclusions before anyone sees it.
- 3
Everyone bids on the same text
Only the subcontractors you choose can see the scope, and each bids against the same description and checklist.
- 4
Milestones become proof
Each milestone is closed with photos and a GPS check-in, and you confirm it. Confirming means the work is verified, not that money moves. A milestone can also be a zero-value checkpoint that raises no invoice.
- 5
Changes are recorded
If the work changes, a change order adds the cost, the days and the new milestone in one step, so the scope on file always matches what was agreed.
The AI writes a draft for a person to review. It does not know your site, your standards or your risk tolerance, so read it as you would a colleague's first pass.
Questions people ask
What should a scope of work include?
Deliverables with quantities, exclusions, responsibilities of other parties, milestones with clear finish lines and acceptance criteria. Add the schedule and the process for changes.
Why do exclusions matter in a scope of work?
Disputes usually start with something one side assumed was included. Writing exclusions down before bidding removes the assumption, and it makes bids easier to compare.
Can AI write a scope of work?
ScopeMark's AI drafts one from a short description or a few guided questions, with deliverables, exclusions, milestones and acceptance criteria. A person edits and approves every line before it is used.
How many milestones should a job have?
Enough that progress is visible and each stage has a clear finish line, without turning every task into a milestone. Percentages across milestones add up to 100%, and a checkpoint can carry 0% when nothing should be invoiced for it.
Does ScopeMark hold or move our money?
No. ScopeMark does not process payments between companies and subcontractors. The buyer pays directly, outside ScopeMark, and records the payment. ScopeMark's only revenue is its subscription.