15 Questions to Ask Before Hiring a Concrete & Driveway Contractor

1. Verify Licensing & Professional Credentials

Concrete work is regulated in most jurisdictions because it involves structural integrity and safety. A contractor who can’t prove proper licensing is often operating under the radar, which leaves you with little recourse if something goes wrong.

• Question 1: What state or local license numbers do you hold for concrete and driveway work?
• Good answer: The contractor provides current license numbers, explains the specific scope each license covers (e.g., "General Contractor License #12345 for all concrete work"), and offers to show the license on a government website.
• Red flag: Vague references to "a license" without numbers, or an inability to produce documentation on the spot.

Ask also about any industry certifications (e.g., American Concrete Institute, National Concrete Masonry Association). While not required, they indicate a commitment to best practices.

2. Confirm Insurance Coverage & Liability Limits

Accidents on a job site can quickly become a financial nightmare. Proper insurance protects both you and the workers.

• Question 2: Can you provide a copy of your general liability and workers’ compensation certificates?
• Good answer: The contractor emails a PDF showing active policies, lists coverage limits that are appropriate for a residential project, and explains that the policies name the homeowner as an additional insured.
• Red flag: Saying "we have insurance" without documentation, or offering only a binder that expires in a few weeks.

3. Understand the Warranty & What It Actually Covers

Concrete warranties vary widely. Some only cover the materials; others guarantee workmanship for a set period.

• Question 3: What does your warranty cover, and for how long?
• Good answer: A written warranty that states, for example, "crack resistance for five years under normal residential use" and "material defects for ten years," plus a clear process for filing a claim.
• Red flag: A verbal promise of "lifetime" coverage without written terms, or a warranty that only applies if you use the contractor for future repairs.

4. Get a Detailed Timeline & Understand Scheduling Constraints

Concrete is time‑sensitive; temperature, humidity, and curing time affect strength. Knowing the schedule helps you plan around weather and personal commitments.

• Question 4: What is the projected start date, total duration, and critical milestones (e.g., pour, finish, cure time)?
• Good answer: The contractor provides a day‑by‑day outline, notes weather windows, and explains that the surface will be usable after a specific curing period (usually a few days for light traffic).
• Red flag: A vague "we’ll start next week and finish in a few days" without accounting for weather or curing.

5. Clarify the Payment Schedule & Deposit Limits

Many homeowners are asked for large upfront deposits. This can be a tactic to lock you in before the work even begins.

• Question 5: What is your payment schedule, and what percentage is required as a deposit?
• Good answer: A written schedule that ties payments to completed milestones (e.g., 10% after site prep, 40% after pour, 30% after finish, 20% after final inspection) and a deposit no higher than 20‑30% of the total bid.
• Red flag: Demanding more than half the total cost before any work starts.

6. Verify Permit Handling & Local Code Compliance

Concrete driveways often require permits, especially if they affect drainage or encroach on public right‑of‑way. Failure to obtain permits can lead to fines or forced removal.

• Question 6: Who will pull the required permits, and can you show proof of permit approval before work begins?
• Good answer: The contractor states they will handle all permits, provides a timeline for submission, and offers to share the permit number once approved.
• Red flag: Saying "you can handle the permits" or refusing to discuss permit status.

7. Identify Subcontractors & Their Qualifications

Large driveway jobs often involve multiple crews (excavation, formwork, finishing). Knowing who will actually be on site protects you from surprise labor quality issues.

• Question 7: Will any subcontractors be used, and if so, what are their credentials?
• Good answer: The contractor lists each subcontractor, provides their licensing and insurance details, and explains how they supervise the work.
• Red flag: Vague "we have a crew" without naming them, or refusing to share insurance info for subcontractors.

8. Probe the Scope of Work & Material Choices

Concrete driveways can differ in thickness, reinforcement, joint spacing, and surface finish. A clear scope prevents hidden change orders.

• Question 8: What thickness, reinforcement (rebar or wire mesh), and joint pattern will you use for my driveway?
• Good answer: The contractor explains that a residential driveway typically uses a 4‑inch slab with #3 rebar at 18‑inch intervals, and describes the control joint spacing based on slab dimensions.
• Red flag: No mention of reinforcement or joint placement, which can lead to cracking.

9. Discuss Surface Finish Options & Longevity

The finish you choose (broom, stamped, exposed aggregate) affects slip resistance and maintenance.

• Question 9: Which finish do you recommend for my climate and traffic, and why?
• Good answer: The contractor matches the finish to local freeze‑thaw cycles, explains that a broom finish provides adequate traction, and outlines any sealant recommendations.
• Red flag: Pushing a high‑cost decorative finish without explaining its functional benefits.

10. Ask About Site Preparation & Drainage Planning

Improper sub‑grade preparation is a leading cause of driveway failure. The contractor should address grading, compaction, and drainage.

• Question 10: How will you prepare the sub‑grade, and what drainage measures will be incorporated?
• Good answer: The contractor describes excavating to a specific depth, compacting with a plate compactor, adding a granular base, and installing a slight slope away from the house.
• Red flag: Skipping the base discussion or claiming "the ground is already flat enough" without inspection.

11. Clarify Change Order Process & Cost Controls

Unexpected conditions (rock, water table) can trigger extra charges. Knowing the process keeps costs transparent.

• Question 11: How do you handle change orders, and will you get written approval before any additional work?
• Good answer: The contractor states that any deviation from the original scope will be documented, priced, and signed by the homeowner before execution.
• Red flag: Agreeing to “adjust on the spot” or refusing to provide written estimates for extras.

12. Review Cleanup & Site Restoration Plans

Concrete work can leave a mess of dust, debris, and leftover materials. A professional crew will restore the property to its pre‑project condition.

• Question 12: What is included in your cleanup, and will you remove all waste and restore landscaping?
• Good answer: The contractor lists daily site cleanup, final sweep, disposal of excess concrete, and re‑grading of any disturbed soil.
• Red flag: No mention of cleanup or expecting the homeowner to handle waste removal.

13. Inquire About Post‑Project Inspection & Punch List

A thorough walk‑through catches minor defects before you sign off.

• Question 13: Will you conduct a final inspection with me, and how are punch‑list items addressed?
• Good answer: The contractor schedules a walk‑through, documents any issues, and commits to correcting them at no extra charge before final payment.
• Red flag: Leaving the homeowner to discover problems after the crew departs.

14. Ask About Long‑Term Maintenance Recommendations

Even the best driveway benefits from periodic care. Knowing the contractor’s maintenance advice helps you preserve the investment.

• Question 14: What maintenance routine do you recommend, and do you offer sealant re‑application services?
• Good answer: The contractor suggests cleaning methods, timing for a sealant coat (typically every few years), and offers a maintenance package with transparent pricing.
• Red flag: No guidance or an upsell to a costly “maintenance contract” without explaining why it’s needed.

15. Verify References & Past Project Documentation

References let you hear directly from previous homeowners about reliability, quality, and after‑care.

• Question 15: Can you provide at least three recent references and photos of similar driveways you’ve completed?
• Good answer: The contractor supplies contact info for homeowners, shares before‑and‑after photos, and offers to arrange site visits.
• Red flag: Claiming “all clients are confidential” or only showing portfolio images without real references.

Quick Reference: Good Signs vs. Red Flags

Good Sign	Red Flag
Provides written license numbers and can show them on a government site.	Vague about licensing; cannot produce documentation.
Shows active liability and workers’ comp certificates with appropriate limits.	Only says “we have insurance” without proof.
Offers a written warranty that specifies coverage period and claim process.	Gives verbal “lifetime” promises with no written terms.
Deposits no higher than 20‑30% and ties payments to completed milestones.	Demands >50% upfront before any work starts.
Lists subcontractors, their licenses, and insurance, and explains supervision.	Refuses to name subcontractors or share their credentials.

Use this checklist as a conversation starter. A reputable contractor will welcome the scrutiny, provide documentation, and answer each question clearly. If you encounter evasive answers or pressure tactics, walk away and get another bid. Your driveway is a long‑term investment—protect it with due diligence.