Writing Scope of Work Wording: What's In and What's Out

A scope section answers one question for the customer: what am I getting? Scope is the work needed to finish a project, and matters outside it are called "out of scope".¹ A good quote says both sides out loud.

Why unclear scope hurts

If the quote is vague, each side fills the gap with their own idea. The customer assumes the patching and painting is included. You assumed it wasn't.

That gap has a name in project work. Where requirements aren't clearly defined, "scope or requirement creep may ensue."¹ In plain terms, the job slowly grows without anyone agreeing to it.

Another source lists common reasons extra work appears, including that "The project's work was incorrectly estimated".² A clear scope won't prevent every change. It gives you a fixed point to measure a change against, which the page on wording a variation builds on.

Three lists to write first

Write these in your own words, before you open any tool. The tool can't see the site.

• Included. Each task you'll do, in the order the customer would see it.
• Excluded. Things a customer might reasonably expect but that aren't part of this quote. Making good of walls and ceilings is a common example, but only you know whether it's in or out for this job.
• Assumptions. What you're relying on being true. For example, that you'll have access during working hours, or that the existing wiring is as you found it on the visit.

An assumption is a condition. If it turns out false, the quote may need to change. Say so in the quote, so the customer isn't surprised later.

Ask the tool to word it

Now give the tool your three lists. Maker guidance says to be specific about the output format and the constraints you want.³ So say what shape you want:

Turn these three lists into a scope section with the headings Included, Not included and Assumptions. Use short sentences and plain words a homeowner would understand. Don't add anything that isn't in my lists. If a line is unclear, ask me instead of guessing.

The last instruction matters. Without it, a tool may add a tidy-sounding item you never meant to offer.

Read it like the customer

Check each line against these questions:

• Could someone with no trade knowledge understand it?
• Does "supply and install" or "install only" say who provides the materials, if that applies?
• Does any line promise more than you meant, such as "all", "any" or "everything"?
• Is anything you'd normally do missing from both the included and excluded lists?

The last question catches the quiet gaps. If a task is on neither list, the customer will think it's in.

Keep rules and regulations out of the tool's hands

Don't let a tool write statements about what the law or a standard requires, including licensing, testing, certificates or safety. It may sound right and be wrong, or true in one country and false in another. If the quote needs to mention a requirement, take the words from your regulator or licensing body yourself.

Use the same words everywhere

Once the scope is agreed, keep its wording. A variation changes it, and the invoice should match it. Any change to works agreed in a contract is treated as a variation.² That only works if the agreed works are written down clearly.

Last, read the whole thing as a customer would. The steps for that sit in the pre-send checklist.