Vetting commercial concrete contractors thoroughly is essential to ensuring quality work and avoiding costly problems. The wrong contractor can leave your business with a cracked lot, wasted money, and years of regret. This guide gives you the exact questions professionals use.
10 Essential Questions to Ask Every Contractor
1Are you licensed and insured?
This is non-negotiable. Verify they have:
- ✓ A current contractor's license for Oklahoma
- ✓ General liability insurance (protects your property)
- ✓ Workers' compensation insurance (protects you from liability if a worker is injured)
💡 Pro Tip: Ask for certificates and verify them directly with the insurance company.
2How long have you been in business?
Experience matters enormously in concrete work. Look for:
- • 5+ years minimum in concrete installation specifically
- • Experience with projects similar to yours in scope and design
- • Knowledge of local soil conditions (critical in Oklahoma)
3Can you provide references from recent projects?
Request 3-5 references from customers who had similar work done within the past year. When you contact them, ask:
- • Were you satisfied with the quality of work?
- • How was communication throughout the project?
- • Did any issues arise, and how were they handled?
- • Would you hire them again?
4What is your timeline for completion?
Get a written estimate with specific start and completion dates. Understand factors that might affect the timeline:
- • Weather conditions
- • Material availability
- • Permit processing time
- • Curing time requirements
5What is your payment schedule?
⚠️ Never pay the full amount upfront. A typical, fair payment schedule is:
🚨 Be very cautious of contractors demanding large upfront payments (more than 30%) or offering "cash discounts."
6What preparation methods do you use?
Proper base preparation is the most critical factor in pavement longevity. Ensure they follow:
- • Proper excavation depth
- • Soil compaction (essential in Oklahoma's clay)
- • Geotextile fabric where needed
- • Proper base material (crushed stone/gravel)
- • Professional forming techniques
7What concrete mix design do you recommend?
A knowledgeable contractor should specify:
- • Strength (PSI): Minimum 3000 PSI, 4000 PSI recommended for Oklahoma
- • Slump: Workability measurement
- • Air-entrainment: 5-8% air content for freeze-thaw resistance (critical in Oklahoma)
- • Admixtures: Fibers, accelerants as appropriate
🏆 TulsaCrete Standard: We use 4000 PSI air-entrained concrete with rebar reinforcement on every project—33% stronger than the industry minimum.
8How do you handle control joints and sealing?
Control joints prevent random cracking. Ask about:
- • Joint spacing plan (typically every 8-12 feet)
- • Method: tooled vs. saw-cut joints
- • Whether sealing is included in the contract
- • Type of sealer used (penetrating vs. film-forming)
9What warranty do you offer?
Get a written warranty covering both materials and workmanship. Standard warranties are 1-2 years. Understand:
- • Exactly what is covered (cracking, settling, surface defects)
- • What might void the warranty
- • The process for filing a warranty claim
10Do you handle all necessary permits?
A professional contractor should:
- • Know whether permits are required in your city
- • Handle obtaining all necessary permits
- • Schedule required inspections
- • Call 811 to locate underground utilities before excavation
🚩 Red Flags to Watch For
If you notice any of these warning signs, proceed with extreme caution—or find a different contractor:
Demands for immediate decisions or "today only" pricing
If it's much cheaper than competitors, they're cutting corners
No references or written estimates = no accountability
No license or insurance puts YOU at risk
Can't explain materials or methods = doesn't know them
Requesting more than 30% upfront is a major red flag
Why We Published This Guide
At TulsaCrete, we believe educated customers make the best decisions. We're confident in our work, which is why we encourage you to ask us—and every other contractor—these tough questions.
When you compare answers, you'll see why Oklahoma businesses consistently choose us:
- 50+ years combined experience in Oklahoma concrete work
- 4000 PSI concrete standard on every project
- Rebar reinforcement included (not an upsell)
- Fixed, written quotes with no hidden fees
- Full licensing and insurance documentation available
Ready to put us to the test? Contact us for a free on-site quote—and ask us anything.
Frequently Asked Questions
Ask about licensing and insurance, years of experience, references, timeline, payment schedule, preparation methods, concrete mix specifications (PSI), control joints, warranty terms, and permit handling. These 10 questions will reveal whether a contractor is professional and reliable.
Never pay more than 30% upfront. A fair payment schedule is 30% down, 30% at completion of base work, and 40% upon final completion. Be wary of contractors demanding more than 30% or offering cash discounts.
In Oklahoma, we recommend minimum 4000 PSI concrete with 5-8% air-entrainment for freeze-thaw resistance. While 3000 PSI is the industry minimum, it's not adequate for Oklahoma's extreme temperature swings.
You can verify contractor licensing through the Oklahoma Construction Industries Board (CIB). Ask the contractor for their license number and verify it directly. Also request certificates of insurance and verify them with the insurance company.
Major red flags include: high-pressure sales tactics, bids significantly lower than competitors, refusal to provide references or written estimates, lack of licensing/insurance, vague answers about materials and methods, and requests for large upfront payments (more than 30%).
Yes. A professional contractor should know local permit requirements, handle obtaining necessary permits, schedule inspections, and call 811 to locate underground utilities before excavation. If they suggest skipping permits, find another contractor.