THE SHORT ANSWER
Write a drain-cleaning estimate by affected fixture, access point and included service attempt. Define what the customer receives if the line cannot be cleared under the stated scope.
The worked project in this guide is two accessible sink drain lines. It uses an original fictional job to explain the estimating decisions, with a matching sink drain cleaning PDF example. Replace the example inputs with your measurements, supplier quotes and labor costs.
1. Identify the affected fixtures
List each sink, the reported symptom and the planned access point. A single whole-house drain line item hides which sections of piping the service actually covers.
2. State the included attempt
Describe the tool access and work limit at a service level without promising a result that inspection cannot support. If the line remains blocked, explain how diagnostic work would be approved.
3. Count reassembly work
Removing a trap or restoring an access opening takes time. Give that work a line when the connection needs to be taken apart and checked after service.
4. Set the handoff boundary
Include a visible flow check and cleanup. Make clear that an apparent improvement is not a guarantee against recurring obstruction or hidden pipe defects.
A worked sink drain cleaning calculation
Two trap reassembly allowances × $65 = $130, and two flow checks × $40 = $80. Their $210 subtotal is separate from the two drain-cleaning service lines.
The complete example contains 6 lines totaling $810.00 before any tax or markup. These are deliberately stated example prices, not a survey, regional price recommendation or offer to perform the job.
To set your own selling price, review direct costs and decide how you will cover overhead and profit. For example, adding 20% to a $1,000 cost gives $1,200; it does not produce a 20% gross margin. Use the approach you intend consistently, and avoid adding a second markup to rates that already include it.
Before you send the estimate
- Name both affected fixtures.
- Confirm access points.
- Define the service attempt and next diagnostic step.
- List reassembly and cleanup.
Example scope boundary: No pipe replacement, camera inspection, excavation, main-line service or guarantee against recurring blockage.
Review the client name, location, validity date and all calculations. Tax is not included in this example; determine the correct treatment for the actual work rather than copying a sample percentage.
Common questions
Should an unsuccessful cleaning attempt be billed?
State the agreed service scope and billing terms before work. If further diagnostics are needed, present a separate scope and price.
Is camera inspection part of drain cleaning?
Only if listed. This example prices two sink-line service attempts without camera work.
TAKE THE NEXT JOB FROM SCOPE TO PDF
Make your own sink drain cleaning estimate.
Use Estimates on iPhone or Android to draft a scope with AI assistance or enter your own items. Review quantities and rates, add your business logo, and export a PDF. Example files are free to view; app features may require an in-app purchase.
