Concrete questions, answered for Conroe

Look at whether the pieces have moved relative to each other. A slab with two or three tight cracks, no step across them, and edges you cannot catch a shoe on is a repair. A slab where panels sit at different heights, where cracks run continuously through most of the drive, or where the edges crumble under pressure has lost the structure that made it a slab, and patching only buys a season. The middle case, a sound panel that has simply dropped, is a lifting job rather than either.

ConcreteNetwork, updated 14 July 2026, puts a plain broom-finish slab at $6.50 to $10.50 per square foot installed, driveways overall at $5 to $21 depending on the finish, and stamped work at $10 to $20. Multiply by your square footage for a bracket, then expect the real quote to move within it based on thickness, how much demolition is involved, how much subgrade work the lot needs, and whether a truck can reach the pour or it has to be pumped.

Four inches is the residential standard for cars and light pickups. Six is the step up, and it earns its place wherever something heavy parks in one spot: a three-quarter ton truck, a boat trailer, a fifth wheel, or the section a delivery truck swings across. Adding thickness during the pour costs the extra concrete. Adding it afterwards costs the whole slab.

The site work is shorter than people expect and the waiting is longer. Demolition and haul-off on a typical residential drive is about a day, forming and subgrade prep another day or two, and the pour itself is one morning. Then it cures. Foot traffic is usually fine within a day or two, cars generally wait about a week, and heavier vehicles wait longer. The contractor should give you the specific dates for your pour.

No, and this is the single most common way a new drive gets damaged. Concrete looking dry on the surface says almost nothing about its strength; it keeps gaining strength for weeks after placing. Driving on it early does not usually produce a visible crack on day eight, it produces a slab that reaches a lower final strength and shows it years later. Wait for the dates you were given.

Sandy at the surface over sandy clay underneath. The USDA official series description for the Conroe series, typed in Montgomery County, records gravelly loamy fine sand in the upper horizons over sandy clay loam and sandy clay formed in fluviomarine deposits of the Willis Formation, with permeability through the clay described as slow. The Splendora series, formed on Lissie Formation sediments, is the other common one: moderately well to somewhat poorly drained, with runoff recorded as medium to high.

Because water moves fast through the sand and then stops at the clay. USDA records a perched water table on the Splendora series between fifteen and twenty-eight inches deep from December through April, which is exactly the depth a driveway subgrade cares about. The result is bearing soil that is firm at the end of a dry summer and soft in late winter, and a slab that has to span that difference.

Far less than it is in a northern market, and the surface durability problems here have different causes. What damages flatwork in Southeast Texas is more often heat during placement, curing stopped too early, water worked into the surface during finishing, and subgrade that softens under a wet season. Advice written for a hard-winter climate is not wrong so much as aimed at a different problem.

The edge is where soil moisture swings hardest. The middle of a slab is shaded by its own mass and stays near a steady moisture content, while the outer foot or so dries out in an August drought and takes on water in a wet December. The slab ends up spanning a soft spot and cracks parallel to the edge. Carrying compacted base out past the form line is the cheapest thing that reduces it.

They do, and in the wooded parts of this county it is the most common flatwork failure there is. The signature is distinctive: a slab that is otherwise sound with a single high point and cracks radiating away from it, usually within the root plate of a mature pine or live oak. It is a layout problem rather than a concrete problem, and pouring a thicker slab in the same place does not settle it.

Reinforcement does not stop concrete cracking, and anyone who says it does is overselling it. What it does is hold the two sides of a crack together so the slab keeps acting as one piece and the edges do not step apart under a wheel. On a drive that will see a loaded truck or a trailer, that is exactly the failure you are designing against. What matters as much as having it is where it sits: at mid-depth on chairs, not lying on the subgrade.

The working rule crews use is that joint spacing in feet is roughly two to three times the slab thickness in inches, so a four-inch slab gets joints every eight to twelve feet and a six-inch slab every twelve to eighteen. Panels should stay close to square, because long thin panels crack across the middle regardless of spacing. Joints are cut about a quarter of the slab depth, deep enough to control where the shrinkage goes.

Both work and both are normal. Tooled joints are formed into the wet concrete during finishing and give a rounded profile. Sawcut joints are cut after the slab has set enough to hold an edge, and they give a crisper line, which matters more on a visible patio than a drive. The timing on sawcutting is the part that requires judgement: too early and the edge ravels, too late and the slab has already cracked where it wanted to.

On a well-run job, loose sand, organics, and anything soft comes off, the ground is compacted, and base material is brought in where the native soil will not hold grade. On a badly run job, the forms go on top of whatever is there. This is the part of the work you cannot see afterwards and the part that decides the outcome, which is why the quote should say what happens to it rather than leaving it implied.

It affects the working window more than the outcome. In a Southeast Texas summer, concrete stiffens faster, the finishing window shortens, and plastic shrinkage cracking becomes a real risk if the surface dries faster than bleed water can reach it. Crews handle it with early starts, shading, adjustments to the mix, and enough people on site to keep up. A decorative stamp job in July is harder work than the same job in March.

It depends on the address and on what the work touches. Inside the city limits, work in the public right of way and anything tying into a city street runs through the City of Conroe, and Building Inspections and Permits is the department that answers it for a specific property. The city takes permit applications through its OpenGov portal. Confirming before demolition is cheaper than confirming after.

Then it is a county matter rather than a city one. Driveway connections and culvert crossings on county roads run through the Montgomery County commissioner precinct that covers the address, and the county Engineering department handles the drainage side. Which precinct you are in decides the process, because the precincts publish different arrangements.

The precinct decides. Montgomery County Precinct 3 publishes a policy where the resident supplies the pipe and marks the location, the precinct submits the utility locate request through 811, and precinct crews set the culvert to grade on cement-stabilised sand within three to seven business days of the locates clearing. Precinct 3 charges by pipe diameter and configuration, listing a single culvert up to twenty-four inches at $25 per foot and over twenty-four inches at $30 per foot, and states that no driveway surfacing material is supplied. Precinct 4 publishes a different arrangement where an inspector determines the pipe size and the property owner installs it.

That is set by the ditch, not by preference, and the precinct determines it rather than the homeowner or the concrete crew. This is useful rather than bureaucratic, because it means the pipe is sized against the water it has to carry. The practical instruction is simple: do not buy pipe before that conversation happens.

No. Texas does not issue a statewide general or residential contractor licence, and concrete work is not licensed at the state level. Cities can require contractors to register with them in order to pull permits, and those requirements differ from city to city. So there is no state licence number to look up for this trade, and the useful questions are about insurance, a written scope, and the specifics of the job instead.

Both are legitimate and the decision is mostly about length and maintenance. Gravel costs far less per square foot up front, which matters enormously across a few hundred feet, but it needs topping up, it migrates in heavy rain, and on a slope it washes. Concrete is a much larger single number and then largely stops asking for anything. A common compromise out on acreage is concrete at the approach and the parking area, where the wear and the mess concentrate, and gravel along the run.

Concrete typically costs more to install and lasts longer, while asphalt is cheaper up front and needs periodic sealing and eventual resurfacing. In this climate, the heat argument runs toward concrete: asphalt softens in sustained high temperatures in a way concrete does not. Colour and appearance push the same way for most people here. Neither is the wrong answer, but the ten-year comparison is closer than the quotes suggest.

It depends on how much you value the appearance and whether you will keep up the maintenance. Stamped work costs meaningfully more, mostly in labour, and it is normally sealed, which means a resealing cycle for as long as you own it. That cycle belongs in the comparison, because the honest number is the ten-year cost rather than the quote. Where a patio is the main outdoor room of the house, plenty of people decide it is worth it.

Sealing the joints and any cracks on a sound slab is worthwhile, because it keeps water out of the one place where water does real damage, which is underneath. Whole-surface sealers are a different question: decorative work is normally sealed as part of the system, while a plain broom-finish drive can go a long life without one. What sealing does not do is fix a slab that has moved, and it should never be sold as though it will.

Fine shrinkage cracking is expected in any slab, which is precisely what control joints exist for: to give the shrinkage a planned place to go. A tight crack with no step across it and no change over time is a maintenance item best sealed. What is not normal is a crack that widens over months, a step where one side has dropped, or cracking that ignores the joints entirely, and any of those is worth having somebody look at the ground rather than the concrete.