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Six kinds of residential concrete work
Each one is a slab doing a different job, and each asks slightly different things of the ground underneath it.
Every piece of residential concrete is the same basic system: prepared ground, a compacted stone base, the slab itself, and the joints and slope that decide where it cracks and where water goes. What changes from a driveway to a patio to a shed pad is the load it carries, how visible the finish is, and how it meets the house, the street or the yard around it.
The pages below take each kind of work in turn and explain what to look for in a quote, so that two contractors' numbers can be compared on the same terms. Where a project combines several of them, such as a new driveway with a walkway and steps to the front door, the same questions apply to each piece.
Around Knoxville, three conditions come up again and again: clay soils that swell and shrink with the seasons, sloped lots that send runoff toward slabs and foundations, and winter freeze-thaw cycles made harsher by de-icing salt tracked in on cars. A good quote addresses all three for your property, not just the square footage.
Concrete driveways judged by the base and the drainage
Most people judge a new driveway by how smooth and clean it looks on the day the forms come off. That tells you very little. Whether a concrete driveway in Knoxville stays flat and crack-controlled for decades depends on two things you cannot see once it is poured: what the slab is sitting on, and where the water goes when a summer thunderstorm sends a sheet of runoff down the hill. This page walks through each decision in the order a good contractor makes it.
Backyard concrete patios built around slope and water
Most backyard patios in East Tennessee do not fail because the concrete was weak. They fail because rainwater was allowed to run the wrong way, or because the ground under one corner was never ready to carry a slab. Get the fall of the surface, the base and the edges right on a hillside Knoxville lot, and the rest of the decisions about size, finish and sealer become the enjoyable part.
Stamped and decorative concrete: a real slab with a finish on top
Decorative concrete is sold with photographs of brand-new work, glossy and perfectly colored. What you are really buying is two things stacked together: an ordinary structural slab that has to be built as carefully as any driveway or patio, and a decorative surface that will need cleaning and resealing for as long as you own it. Judge both halves, and ask about the second one before the first is poured.
Concrete walkways and steps for sloped Knoxville lots
On a flat lot a walkway is simply a path. On the hillside lots common around Knoxville, it is a small piece of engineering that has to carry people safely up and down a grade in rain, leaf fall and the occasional icy morning, while keeping stormwater from following the same route toward the front door. Safety and drainage come first here; appearance follows.
Garage, shed, workshop and RV or boat pads built for the load
A concrete pad looks like the simplest job in residential concrete: a flat rectangle on the ground. The trouble is that a slab for a garden shed and a slab for a fifth-wheel camper are completely different structures that happen to look alike. Before anyone orders concrete, decide exactly what will sit on the pad, where its weight will land, and whether the floor needs to shed water or stay level. Everything else in the design follows from those answers.
Concrete replacement and repair that starts with a diagnosis
When a driveway, patio or walkway starts to look bad, the instinct is to ask what it costs to tear it out and start over. Sometimes that is the right call. Often it is not, and occasionally it is the wrong call even though the new slab looks perfect, because whatever broke the old concrete is still waiting underneath. The better first question is why it failed. The pattern of damage usually tells you, and the answer points to the repair that will last.
Talk through your project
Start with the address, what you want poured or replaced, rough dimensions, and a few photos of the area and any existing concrete.