Get Three Quotes — And Make Them Comparable
The single most useful thing you can do is get three written quotes for the same scope of work. Tell each contractor the same details: the size of the driveway, whether old concrete needs removal, the finish you want, and how you use the driveway (cars only, or trucks and trailers?). If the scopes differ, the prices will differ for reasons that have nothing to do with value — so keep the playing field level.
Then compare the quotes line by line, not just by the bottom number. A bid that is 30 percent cheaper usually left something out. Your job is to find out what.
The 10 Questions to Ask Every Contractor
Ask every bidder the same questions and write down the answers.
- What PSI concrete will you pour? You want to hear "4,000 PSI" for a driveway. Anything less is a compromise on durability.
- Is the mix air-entrained, and at what percentage? The answer should be yes, 5 to 7 percent. In Maryland's freeze-thaw climate, this is not optional.
- How thick will the slab be? Four inches for cars, five for heavier vehicles. Be suspicious of anyone proposing three inches for a driveway.
- What base will you put under it? Listen for 4 to 6 inches of compacted crushed stone, compacted in layers. On Charles County clay, base prep is what prevents heaving and settling.
- What reinforcement do you use? Wire mesh or rebar. "Fiber in the mix" alone is not a substitute for steel in a driveway.
- How will you handle control joints? Saw-cut or tooled joints every 8 to 10 feet, so cracking happens where planned.
- What is your curing process? Concrete needs about 7 days before driving on it and 28 for full strength. Ask how they protect it during that window.
- How do you handle drainage? The driveway should slope about 1/4 inch per foot away from the house. Ask specifically — drainage mistakes are expensive to fix later.
- Can you show me your MHIC license number and your insurance paperwork? In Maryland, home improvement contractors need an MHIC license — ask for the number and look it up on the state's website. Also ask for proof of general liability insurance. Do not take anyone's word for either.
- What warranty do you offer, in writing? Get the terms on paper: what is covered, for how long, and what voids it.
Check References and Past Work
Ask for addresses of driveways poured at least two or three years ago — recent work always looks good; aged work tells the truth. Drive by if you can. Look for even surfaces, tight joints, and no major cracking.
Get Everything in Writing
A proper contract should spell out the scope (size, thickness, PSI, base depth, finish), the total price, the payment schedule, the start and completion dates, and the warranty. Never pay the full amount up front. Anyone demanding full payment before starting is a hard pass.
Red Flags That Mean "Walk Away"
- Door-to-door "we have leftover concrete" pitches. A classic scam. Real contractors do not sell driveways like ice cream trucks.
- Cash-only, no contract. No paper trail means no recourse when something goes wrong.
- High-pressure "sign today" discounts. A legitimate quote is good for at least a couple of weeks.
- No license number or unwillingness to show insurance. This is the easiest check in the world. Refusal tells you everything.
- Vague about the mix, base, or joints. If they cannot answer the 10 questions above, they are not planning the job carefully.
- Way cheaper than everyone else. They are cutting something — usually the base, the steel, or the mix quality.
A Note on Permits and HOAs
Ask each contractor who handles permits and whether your project needs one — a good local contractor knows Charles County's requirements. If you live in a Waldorf subdivision with an HOA (many do, including the St. Charles communities), check your covenants before signing anything; HOAs often require design approval for driveway changes. More detail in our Charles County permit guide.
Trust the Process, Not the Pitch
The right contractor is the one who answers technical questions precisely, puts everything in writing, has verifiable credentials, and shows you aged work that still looks good. That is true whether you hire us or anyone else — this guide is buyer advice, not a sales pitch. If you would like a quote from us to compare against the others, send our contact form with your driveway's size and what you need — see what our installations include and how we protect them. And before the work starts, the best time to pour in Maryland guide helps you plan the schedule.