10 Questions to Ask a Concrete Contractor Before You Hire

Hiring a concrete contractor is not complicated — but a lot of homeowners skip questions they should ask and end up with cracked driveways, failed patios, or contractors who disappear after the final payment clears. These 10 questions take 10 minutes and will tell you everything you need to know before signing.

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1. Are You Licensed in California?

California requires a contractor’s license (C-8 for concrete) issued by the Contractors State License Board (CSLB). You can verify any contractor’s license at cslb.ca.gov in under two minutes.

An unlicensed contractor may offer a lower price, but if something goes wrong — injury on your property, failed work, an unpermitted structure — you have almost no legal recourse. In California, unlicensed contractors cannot enforce a contract for work over $500.

Read more: What to Check Before Hiring a Concrete Contractor in Murrieta

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2. Do You Carry General Liability and Workers’ Comp Insurance?

Liability insurance covers damage to your property if the contractor makes a mistake. Workers’ compensation covers their employees if someone is injured on your property.

Ask for certificates of insurance before any work starts. Verify the certificates are current — they expire. A legitimate contractor will hand these over without hesitation.

Without workers’ comp, you may be liable if a worker is injured on your job. This is not a minor detail.

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3. Will You Pull the Permits?

In Murrieta and Temecula, permits are required for concrete work in certain situations — structural work, retaining walls over certain heights, driveways in some zones. See our permit guide for Murrieta and Temecula for specifics.

Pulling permits is the contractor’s job. If a contractor says “we don’t need a permit” for work that typically requires one, or offers to skip permits to save time, that is a significant red flag. Unpermitted work can cause problems when you sell your home and may not be covered by your homeowner’s insurance.

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4. How Long Have You Been Doing Concrete Work in This Area?

General experience matters, but local experience matters more. Murrieta and inland Riverside County have specific challenges — expansive clay soils, extreme heat, monsoon rains that arrive after months of drought. A contractor who has worked here for years knows how to design for these conditions.

Ask specifically about projects in your city or neighborhood if you can.

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5. Can You Show Me Examples of Completed Projects Similar to Mine?

For a driveway, ask to see other driveways they have done. For a stamped patio, ask for photos of stamped work. Contractors with pride in their work keep a portfolio or at minimum can show you photos on a phone.

If possible, ask for a reference you can contact — a previous client willing to answer a few questions. Most satisfied customers are happy to spend two minutes on the phone.

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6. What Mix Design Will You Use, and What’s the Minimum PSI?

Concrete mix matters. For Murrieta’s conditions, driveways and patios should use at minimum 3,500 PSI concrete, with 4,000 PSI or higher recommended for driveways with vehicle traffic or pool decks. Some contractors use cheaper 2,500 PSI mix to save money — it will crack sooner under load and thermal cycling.

Also ask: will the concrete be fiber-reinforced? Will it have rebar or wire mesh? Both improve tensile strength and crack resistance.

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7. How Will You Prepare the Subbase?

This is where most concrete failures begin. Proper subbase prep for Murrieta’s expansive clay includes:

• Grading and compacting the native soil
• Adding and compacting a layer of crushed aggregate base (Class II base)
• Treating expansive clay with stabilizer in high-movement areas

A contractor who says “we’ll just pour it on the existing ground” is cutting a corner that will cost you later.

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8. What Control Joints Will You Use, and Where?

Control joints are planned cut lines in the concrete that guide where cracks will occur if the slab moves or shrinks during curing. Properly placed control joints (every 8–10 feet on driveways, every 10–12 feet on patios) prevent random surface cracking from becoming visible structural failure.

Ask where they plan to place joints and whether they will be saw-cut after curing or tooled in during finishing. Saw-cut joints are generally considered more precise.

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9. How Long Will the Project Take, and What Happens if It Runs Long?

Get a realistic timeline: start date, estimated completion date, and what happens if weather or other factors cause delays. Concrete work cannot be rushed once poured — curing takes time. A contractor who promises unusually fast completion for a large project may be planning to shortcut curing time.

Also clarify: what is your driveway or patio out of service for driving or foot traffic during curing? (Typically 3–7 days for driveways before driving on them.)

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10. What Does the Warranty Cover?

A reputable concrete contractor will stand behind their work. Ask specifically:

• Workmanship warranty: How long? What does it cover (cracking, delamination, settling)?
• Material warranty: Is the concrete covered separately?
• What is excluded: Surface crazing, minor hairline cracks (common in all concrete), efflorescence (common cosmetic issue)?

At Murrieta Concrete Works, we offer a 10-year workmanship guarantee on our installations. That kind of commitment is only possible when the work is done right from subbase to finish.

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One More Thing: Get Multiple Bids

Three bids is the right number for most residential concrete projects. Be wary of bids that are significantly lower than the others — they usually mean cheaper materials, skipped steps, or a contractor who does not carry proper insurance. Similarly, the highest bid is not automatically the best.

Compare the specifics: PSI mix, subbase prep, joint placement, warranty terms. A contractor who explains what they are doing and why is worth paying a bit more than one who just gives you a number.

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Ready to Ask These Questions?

We welcome every one of these questions from Murrieta homeowners. We are CSLB-licensed, fully insured, and happy to walk through exactly what goes into every quote we provide.

Contact us for a free estimate and a straight conversation about your project.