Questions to Ask a Concrete Contractor - Quote Guide
Ask concrete contractors the right questions about scope, yardage, base prep, reinforcement, access, permits, warranty, payment, and change orders before hiring.
The best questions to ask a concrete contractor are the ones that turn a vague price into a comparable scope. Before hiring, ask about dimensions, thickness, yardage, base prep, reinforcement, delivery, access, finish, joints, permits, inspection, cleanup, warranty, payment schedule, and change orders.
Use this guide before entering bids in the Concrete Quote Reviewer. If you are preparing a client-facing estimate, turn the answers into line items with the Concrete Proposal Kit.
General consumer guidance from the FTC's home improvement scam advice also points to checking contractors and written terms before paying. This page narrows that idea to concrete-specific quote details.
Quick answer
Ask every concrete contractor the same set of questions:
contractor quote review =
project scope
+ concrete quantity and mix
+ base prep, forms, reinforcement, and joints
+ delivery, access, placement, and finish
+ permits, inspection, cleanup, warranty, and payment terms
+ change order rules
If one contractor cannot answer these questions, their price may still be valid, but it is not yet comparable.
Core questions to ask first
| Question | Why it matters | What a clear answer includes |
|---|---|---|
| What exact area is included? | Prevents missed sections. | Dimensions, square feet, thickness, exclusions. |
| How many cubic yards are priced? | Connects quote to material math. | Yards after waste and rounding. |
| What concrete mix is included? | Mix affects supplier quote and use. | PSI, slump, aggregate, fiber, air, color, additives. |
| What base prep is included? | Base issues can cause settlement. | Excavation, gravel depth, compaction, drainage. |
| What reinforcement is included? | Bids often differ here. | Rebar, mesh, fiber, dowels, chairs, spacing. |
| How will concrete reach the forms? | Access can change labor and equipment. | Chute, pump, buggy, wheelbarrow, crew. |
| What finish and joints are included? | Affects appearance and crack control. | Broom, trowel, saw cuts, isolation joints, curing. |
| What is excluded? | Exclusions drive change orders. | Permits, hidden soil, disposal, sealer, repairs. |
For scope structure, use the Concrete Scope of Work Checklist. For material math, use the Concrete Cost Calculator.
Quote questions by category
| Category | Questions to ask |
|---|---|
| Quantity | What dimensions, thickness, waste factor, and cubic yards are included? |
| Supplier | Is ready-mix included, and what supplier terms can change? |
| Access | Can the truck chute directly, or is a pump, buggy, or wheelbarrow route needed? |
| Prep | What excavation, base, compaction, and drainage work is included? |
| Forms | Are layout, stakes, bracing, stripping, and cleanup included? |
| Reinforcement | What steel, mesh, fiber, dowels, chairs, or spacing is priced? |
| Finish | What finish texture, edge detail, sealer, and curing method are included? |
| Cleanup | Who removes forms, washout, old concrete, debris, and street mess? |
| Commercial terms | What deposit, payment schedule, warranty, and change order process apply? |
For supplier questions, use the Ready-Mix Concrete Supplier Quote Checklist.
Questions that catch hidden costs
| Hidden cost | Question to ask |
|---|---|
| Short-load fee | Is the supplier charging a minimum-load or short-load fee? |
| Wait time | How much unload time is included before extra truck time begins? |
| Pump or buggy | Is access equipment included or added later? |
| Disposal | Is old concrete, spoil, or washout disposal included? |
| Permit | Who verifies and pays for permits or right-of-way approval? |
| Inspection | Who schedules inspection, and who pays if it fails or delays the pour? |
| Base repair | What happens if soft soil, roots, or drainage problems appear? |
| Weather delay | What reschedule policy applies for rain, heat, cold, or supplier delays? |
Use the Concrete Change Order Cost Guide for any added work after the original bid.
Project-specific questions
| Project | Extra questions |
|---|---|
| Driveway | Is removal included, how is the apron handled, and what base depth is used? |
| Patio | How is slope away from the house handled, and what access route is planned? |
| Garage slab | Is vapor barrier, thickened edge, apron, reinforcement, and inspection included? |
| Sidewalk | Is it private or public sidewalk, and are right-of-way rules included? |
| Footing | Is inspection required before pour, and what rebar/dowels are included? |
| Shed base | Is the slab level, anchored, and accessible by truck, bags, or buggy? |
For project-specific checklists, review the Driveway Concrete Contractor Quote Checklist, Concrete Patio Contractor Quote Checklist, and Garage Slab Contractor Quote Checklist.
Questions before paying a deposit
| Payment topic | What to ask |
|---|---|
| Deposit | What does the deposit cover and is it refundable? |
| Schedule | What start date, pour window, and weather policy apply? |
| Materials | Are supplier prices locked or subject to change? |
| Change orders | Must added work be approved in writing before it continues? |
| Final payment | What cleanup, warranty notes, and records are due before final payment? |
| Records | Will you receive invoice, mix ticket, permit, or inspection records? |
Use the Concrete Payment Schedule Guide before agreeing to payment terms.
Contractor answer red flags
| Red flag | Follow-up question |
|---|---|
| "We do everything" | Can you list prep, forms, steel, finish, cleanup, and exclusions? |
| No dimensions | What square feet, thickness, and cubic yards are priced? |
| No base detail | What gravel depth and compaction are included? |
| No access plan | Can the truck reach the forms without added equipment? |
| No joint plan | Where will control joints or saw cuts go? |
| No written warranty | What cracks, scaling, settlement, drainage, and finish issues are excluded? |
| No change order process | How is added work approved and priced? |
| Pressure to pay quickly | Can we review the written scope and payment schedule first? |
Question worksheet
| Question area | Contractor A | Contractor B | Notes |
|---|---|---|---|
| Dimensions and thickness | Same scope? | ||
| Concrete yards and mix | PSI, slump, waste, supplier terms. | ||
| Base prep and drainage | Excavation, gravel, compaction. | ||
| Forms, joints, reinforcement | Forms, saw cuts, rebar, mesh. | ||
| Access and placement | Chute, pump, buggy, crew, wait time. | ||
| Finish and curing | Texture, sealer, cure instructions. | ||
| Cleanup and disposal | Washout, old concrete, form removal. | ||
| Permit and inspection | Responsibility and delay cost. | ||
| Warranty and exclusions | Written terms. | ||
| Payment and change orders | Deposit, final payment, added work. |
FAQ
What should I ask a concrete contractor before hiring?
Ask about scope, dimensions, concrete quantity, mix design, base prep, reinforcement, delivery, access, finish, cleanup, permits, inspection, warranty, payment schedule, and change orders.
How do I know if a concrete quote is complete?
A complete quote explains what is included and excluded. It should connect the total price to quantity, prep, forms, reinforcement, placement, finish, cleanup, warranty, and payment terms.
Should I ask for cubic yards?
Yes. Cubic yards help you compare the contractor bid with the supplier quote and your own calculator result. Also ask how waste, minimum loads, and delivery fees are handled.
What questions catch change orders?
Ask what happens if base repair, extra concrete, pump access, permit delay, inspection correction, weather delay, or hidden old concrete changes the job.
Should every answer be written?
For important items, yes. Written scope, exclusions, change order terms, payment schedule, and warranty language are easier to compare than verbal promises.
Does this replace local contractor or legal advice?
No. This is a quote-planning checklist. Confirm code, permit, engineering, insurance, contract, tax, lien, and warranty requirements with qualified local professionals.
Next step
Ask each contractor these questions, then enter the answers into the Concrete Quote Reviewer. If you are building your own client proposal, turn the answers into line items in the Concrete Proposal Kit.
Quote planning next step
Turn this guide into a concrete buying check
Run the matching calculator, then compare ready-mix, bagged concrete, delivery fees, access needs, and quote gaps before you buy materials or approve a contractor number.