Here's how to write a scope of work: describe exactly what you'll do, which materials you'll use, when the work starts and finishes, what isn't included, and how the customer will sign off that the job is done. Write it so plainly that someone who has never seen the site could picture the finished job.
A scope of work (often shortened to SOW) is the part of a quote or contract that defines the job itself. The price tells the customer what they'll pay. The scope tells them what that price buys.
For contractors and service businesses, a clear scope does three jobs. It helps you price accurately. It gives the customer a fair picture before they say yes. And it settles later arguments about whether something was "included." California's Contractors State License Board (CSLB) describes a thorough contract as one that "tells how the work will be done, when it will be done, what materials will be used and how much it will cost." The scope covers the first three.
A scope of work usually sits inside your contractor estimate and then becomes part of the signed contract.
Summary and location. One or two sentences naming the customer, the job address and the areas involved. For example: "Interior repaint of the living room and upstairs hallway at [address]."
Work included. A task list with quantities: rooms, square feet, linear feet, number of fixtures or number of visits. Use verbs that describe a finished result, such as "install," "remove and dispose of" or "apply two coats."
Materials and specifications. Name the brand, model, color, finish, size and quantity, and say who supplies them. The CSLB gives a good example: a contract should say "install oak kitchen cabinets, manufactured by Company XYZ, model 01381A, as per the plan," not just "install kitchen cabinets."
Schedule. Start date, expected finish date, working days and hours, and any phases. Quebec's consumer protection office (Office de la protection du consommateur, or OPC) lists the scheduled start and end dates among the things a renovation contract should include.
Customer responsibilities and site access. What the customer needs to do before you arrive, such as clearing furniture, giving you access to water and power, or keeping pets secured. The CSLB suggests including instructions about pets, children and areas where materials may not be stored.
Exclusions. What is not included. This short list can head off a lot of arguments later.
Permits, cleanup and disposal. The CSLB says a contract should state who gets the necessary building permits. Both the CSLB and the OPC mention spelling out the removal of debris at the end of the job.
Changes and acceptance. Explain that extra work needs written approval before it starts, and how the customer will confirm the job is complete. The CSLB notes that once a change order is signed, it becomes part of the written contract.
Replace everything in [brackets] and delete any line that doesn't apply.
Scope of work for [customer name], [job address]
Prepared by [business name], [phone], [license number, if required]. Date: [date]. Attached to estimate number [number].
Summary: [Type of work] in [areas] at [address].
Work included: [Task 1 with quantity]. [Task 2 with quantity]. [Task 3 with quantity].
Materials: [Brand, product, model, color, finish, size, quantity]. Supplied by [contractor or customer]. Substitutions only with the customer's written approval.
Schedule: Start [date]. Expected completion [date]. Working hours [days and times]. Any delay will be shared by [text or email] within [time].
Customer will: [Clear the work area / provide parking / keep pets secured / provide water and power].
Not included: [Item 1]. [Item 2]. [Item 3]. Any of these can be quoted separately.
Permits: [Contractor or customer] will obtain [permit type], if required.
Cleanup: [Daily sweep and final cleanup / removal and disposal of debris and old materials].
Changes: Work not listed above needs a written change order, showing the price and schedule impact, signed before the work starts.
Completion and acceptance: We'll do a final walkthrough together. Punch list items will be fixed by [date]. The job is complete when the punch list is done and the customer signs off.
Price, deposit and payment terms belong on the estimate or contract. Our guides to what to include on an invoice and markup vs margin cover the money side.
Summary: Interior repaint of the living room (about 14 x 18 feet) and the upstairs hallway.
Work included: Move furniture to the center of each room and cover it. Fill nail holes and hairline cracks, then spot-prime patches. Apply two coats to walls and one coat to ceilings. Apply two coats to 4 doors and all baseboards in these areas.
Materials: Walls in [brand and product], color [name and code], eggshell finish. Doors and trim in [product], semi-gloss, white. Supplied by the contractor.
Schedule: Start Monday [date], finish Wednesday [date], working 8 a.m. to 4 p.m.
Not included: Drywall repair larger than [size], wallpaper removal, closets, moving pianos or heavy electronics, and any exterior work.
Acceptance: Walkthrough in daylight on the final day, with touch-ups finished within [number] business days.
Notice how each line answers a question that could otherwise turn into an argument. Which rooms? How many coats? Are the closets done? What about that big crack?
Vague verbs. "Fix," "touch up," "refresh" and "as needed" mean different things to different people. Describe what the finished result looks like.
No quantities. "Paint trim" could mean one room or the whole house. Count it or measure it.
Missing exclusions. If you don't say something is excluded, the customer may assume it's included.
Verbal promises. The CSLB tells homeowners that if they're promised something verbally, they should make sure it's also in writing. Put it in the scope, or don't promise it.
Generic materials. "Mid-grade paint" or "standard fixtures" invites a dispute. Name the product, or set a clear allowance the customer can choose within.
No sign-off step. Without a defined walkthrough, a job can drag on with small requests that were never part of the price.
Unwritten changes. A quick "while you're here" job can become a billing argument. Write a change order every time, even for small extras.
This is general information, not legal advice. Contract rules vary by state and province. In California, for example, the CSLB says home improvement projects over $500 in combined labor and materials need a written contract. It also says a down payment should never exceed 10 percent of the contract price or $1,000, whichever is less, with one rare exception for contractors who hold a special bond. Check the rules where you work.
The scope of work describes the job: tasks, materials, schedule and exclusions. The estimate puts a price on it. You can put both in one document, with the scope as the detailed description of work and the price below it.
Detailed enough that another contractor could price the same job from it, and the customer could check off each item at the end. If a line could be read two ways, add a number, a product name or an exclusion.
In a small service business, you'll usually write it yourself after seeing the site. Then ask the customer to read it line by line and flag anything they expected that isn't listed, before anyone signs.
Once it's part of a signed contract, it's part of what both sides agreed to. The CSLB warns homeowners that anything they sign as authorization to move forward could become the contract. For legal questions, talk to a local attorney.
Once your scope is written, ScopeBid: Estimate & Invoice can help you price it. It starts a quote from a saved job, a trade template or a blank form, with hourly, per-unit and area line items, and creates PDF quotes with your logo without printing your internal cost or margin. It also adds change orders and converts approved quotes to invoices, and it works offline with no account.
Get ScopeBid free on the App Store