Describe the result you need
Give each contractor the same basic information: location, photos, approximate dimensions, access and the intended use. Explain whether a driveway must carry a heavy trailer, whether a wall supports a patio, and whether a cleared area will become lawn or a building pad. Those details change the work.
Compare written scopes
| Ask about | A useful answer includes |
|---|---|
| Preparation | What vegetation and unsuitable soil are removed; where waste and saved topsoil go. |
| Materials | Product name, planned finished depth and estimated quantity for each layer. |
| Drainage | Where water enters, the fix and its permitted/suitable outlet. |
| Compaction | Layer thickness, equipment, moisture control and any required testing. |
| Layout | Who provides boundary, height and building layout information. |
| Access and cleanup | Equipment route, protection of existing work, restoration and haul-off. |
| Changes | What triggers extra cost and how you approve it in writing. |
Questions for each project
- Driveway: Can existing rock be reused? How will the ditch and crown stop the same potholes returning?
- Pavers: What supports the edge, and how will the finished level meet doors and stairs?
- Wall: Which block system is specified, who checks loads, and where does the drain discharge?
- Lawn: Why does the existing grass struggle, and what changes before reseeding?
- Irrigation: How were flow, pressure and coverage checked? Are beds on separate zones?
- Clearing: Does the price leave mulch and roots, or provide a buildable/plantable finish?
Check the business and the agreement
- Verify the contractor. Use Washington L&I’s current verification tool for registration, bond and relevant records. Ask for current insurance information and examples of similar residential work.
- Agree the boundaries of the job. Put dimensions, exclusions, permits, utility locates and owner responsibilities in writing.
- Understand allowances. Material quantities can be estimates. Ask how extra loads, hidden soft soil and disposal will be documented and approved.
- Agree payments and completion. Use clear milestones and a final walkthrough. Ask what warranty or follow-up applies and which maintenance tasks are yours.
Use calculators to ask better questions
A calculator helps compare quantities, but it cannot tell you whether soil is firm, a wall is stable or a drainage outlet is suitable. Take the estimate to your contractor and supplier; ask them to explain differences in material factors or depths.
Use your own measurements and adjust the product assumptions before ordering.
Open the driveway calculator →Keep a simple project record
Save the scope, approved changes, delivery tickets, photos of buried work and final measurements. During the walkthrough, check drainage, transitions, cleanup and any operating instructions. A clear record helps both the homeowner and contractor.
Further reading & product instructions
Residential resources used for these explanations. Follow the instructions for the product you actually choose.