Concrete Patios in Eagan, MN

What Goes Into a Poured Concrete Patio

A patio starts with a layout conversation, because the shape you draw on paper and the shape the ground will actually accept are often different. Once the footprint is set, we excavate, remove soft soil, and build a compacted rock base the same way we would under a driveway. The slab is typically four inches thick with reinforcement, poured with an air-entrained mix, and finished with a broom texture unless you want something decorative.

The detail that separates a good patio from a wet basement is pitch. A patio needs to fall away from the house at roughly a quarter inch per foot. That slope is barely noticeable underfoot and it is the entire difference between water leaving and water pooling against the foundation every spring.

Signs Your Existing Patio Needs Replacing

Backyard slabs get less attention than the front of the house, so they tend to be further gone by the time someone calls. Watch for these:

• Water standing after rain. A puddle that lasts more than an hour means the pitch is wrong or the slab has settled.
• The slab tilting toward the house. This is the one to act on quickly. It sends water straight to the foundation.
• Patio furniture that rocks everywhere you put it. An uneven surface usually means the base underneath has washed out.
• A gap opening between the patio and the house. The slab is pulling away and water is running down into that seam.
• Green, slick surface every spring. Algae on a shaded slab that never dries out is a fall hazard and a drainage symptom.

Why Backyard Slabs Move Here

Eagan sits on rolling ground left by the glaciers, which is why so many homes here have walkouts and lookout basements. That terrain means the soil behind a house is very often disturbed backfill from when the foundation went in, not native ground. Backfill settles for years.

Add water to that and it accelerates. A downspout dumping next to the patio edge, or a gutter that overflows every time it rains hard, saturates the base and washes fines out from under the slab. Then frost gets into that wet soil over the winter and lifts what is left unevenly. Mature oaks and silver maples common in the older neighborhoods contribute too, since surface roots will lift a four inch slab without much effort.

What Drives the Price of a Patio

• Square footage and shape. Curves and angles take more forming labor than a rectangle of the same size.
• Elevation changes. A step-down onto a lower level, a landing at the door, or a low retaining edge each add a separate pour.
• Access to the backyard. If a truck cannot reach the site, concrete has to be pumped over the house or wheeled through a gate. That is one of the largest single cost swings on a patio.
• Finish. Broom finish is the standard. Exposed aggregate, colored concrete, and stamped patterns that mimic stone or slate cost progressively more.
• Excavation depth. Cutting into a slope to create a level pad moves a lot of dirt, and that dirt has to go somewhere.
• Drainage work. Extending downspouts or adding a drain tile along the edge is cheap while the ground is open and expensive afterward.

Poured Concrete or Pavers?

Both work in this climate. Pavers flex with frost instead of cracking, and a damaged one can be swapped out. The tradeoff is joints. Every paver joint is a place for weeds, ants, and sand loss, and a paver patio needs sand replenished and edges reset every few years.

Poured concrete is one continuous surface with nothing to weed and nothing to shift. It is easier to shovel in February because there are no lips between units. If it does crack it cracks visibly, which is the honest downside. For most Eagan backyards, a properly based and jointed concrete slab is the lower maintenance choice over twenty years.

Repair or Replace an Old Patio?

A slab with a single crack that has not shifted vertically is worth keeping. Clean it, seal the crack, correct whatever is dumping water on it, and it will keep going.

Replace it when the slope is wrong, when multiple sections have settled, or when the concrete is scaling badly enough that the surface is rough underfoot. Those are base and drainage problems. Pouring a new layer over the top traps the same water and the new surface fails along with the old one. If the patio comes out, it is also the right moment to look at the steps down from the deck, because they are usually sitting on the same settled backfill.

Patio Questions From Eagan Homeowners

Call (651) 427-1250 or send the form with a rough size and we will come lay it out with you.