Concrete Driveways in Conroe

Four inches is the standard for a residential driveway carrying cars and light pickups, and that covers most city lots. Six inches is the usual step up, and around here it earns its keep more often than people expect: a three-quarter ton truck, a boat trailer coming off Lake Conroe, a fifth wheel parked in the same spot all winter, or a delivery truck that has to swing onto the apron all load a slab far harder than a sedan does. It is cheaper to add two inches over the parking area during the pour than to replace a cracked section later, and a good quote will price both so you can see the difference.

Because the edge is where the soil moisture changes fastest. The middle of a slab is shaded by its own mass and stays close to a steady moisture content. The outer eighteen inches dries out hard in an August drought and takes on water in a wet December, and sandy soil over slow-draining clay exaggerates the swing. The slab bridges the soft spot, the edge loses support, and a crack runs parallel to the edge a foot or two in. Widening the compacted base past the form line and keeping roof water away from the slab edge are the two things that reduce it most.

Foot traffic is generally fine after a day or two. Vehicles are the part worth being patient about: a week is the common minimum for cars, and heavier vehicles are usually held off longer than that. Concrete keeps gaining strength for weeks after it is placed, and the damage from loading it early is not a visible crack on day eight, it is a slab that reaches a lower final strength and shows it in year five. The contractor should tell you the specific dates for your pour, since it depends on the mix and the weather that week.

It depends on where the property sits and what the work touches. Inside Conroe city limits, work in the public right of way and anything tying into a city street is handled through the city permit process, and the Building Inspections and Permits department is the office that answers that question for a specific address. Outside city limits on a county road, the connection is a county matter and runs through the commissioner precinct rather than the city. The permit guide on this site walks through both routes.

Overlaying is possible in narrow circumstances, but it is rarely the right answer on a driveway. A thin topping bonded to an old slab inherits every crack underneath it, and adding height at the garage door or the street tie-in creates a new problem where the elevations no longer match. Where the existing slab is broken up or has moved, removal and replacement is usually what gets quoted, and the driveway replacement page covers how that job runs.