Keeping slabs in shape, season by season
Most concrete damage creeps in slowly. Water finds a hairline crack, freezes and opens it a little wider. A weed roots into a joint. A downspout empties at the same corner of the patio for years until the soil there washes out and the corner drops. A few short inspections spread through the year catch these things while they are still cheap to fix.
NOAA's engineering weather set has no station near Columbus, so this checklist uses no local weather figures. It is organized around what the seasons do to concrete in general: thaws, warm stretches, falling leaves and snow.
Thaw season checks
Once the ground has stopped freezing at night:
- Photograph every crack with a coin or tape measure beside it. Next year's photo of the same spot tells you whether it is growing.
- Run a hand along the edges of walks and driveways. Crumbling borders and gaps between slab and soil let water get under the concrete.
- Look for flaking. Patches where the top layer has scaled off often point to deicer damage or a weak finish.
- Clear the joints. Pull grass and weeds, sweep or blow out the grit, and fill open cracks with a flexible filler made for concrete.
- Stand outside in a steady rain. Note any puddles that sit on the surface and any runoff heading toward the house.
Warm-weather jobs
- Seal when the label allows. If your slab is due for sealer, clean it thoroughly, wait for a dry spell, and apply within the temperature range the product lists. Cooler mornings or evenings are easier than midday.
- Protect it from heavy loads. Dumpsters, moving trucks and loaded trailers can crack a walk or patio never designed for them. Lay plywood down or keep them on the street.
- Clean stains early. Blot oil before it soaks in, and rinse spilled fertilizer or pool chemicals off promptly so they don't etch the surface.
- Book new work. If a replacement or a new patio is on your list, get written quotes for the same scope from each company.
- Watch new pours. For a slab placed this season, follow the contractor's curing directions and keep vehicles off it until they say otherwise.
Getting slabs ready for cold
- Clean the gutters after the leaves fall and confirm each downspout empties well clear of concrete and the foundation.
- Fill cracks one more time. Any opening left before winter can take in water that freezes and expands.
- Regrade beside the slab. Soil and mulch along the edges should fall away from the house, not toward it.
- Mark the edges of driveways and walks with stakes if you or a plow service will be clearing snow, so blades don't chip the borders.
- Pick up your deicer now, choosing one whose label says it is safe for concrete.
Snow, ice and deicer habits
- Shovel before it packs down. Snow that melts by day and refreezes overnight drives water into the surface.
- Go easy on chemicals. Use the least deicer that does the job, or sand for traction, and keep all deicers off concrete poured within the past year.
- Leave the ice chopper in the garage. Metal blades gouge the surface and break off edges.
- Notice where ice keeps returning. Those spots are low and collect water; mark them to look at during the thaw.
- Sweep up salt that cars track into the garage before it sits on the floor for weeks.
Columbus households and the walk-around
QuickFacts from the U.S. Census Bureau counts 21,726 households in Columbus for 2020-2024, at 2.34 persons per household, and estimates the city's population at 52,655 as of July 1, 2025 (V2025). Whatever your household looks like, a short walk-around four times a year is enough for most driveways, walks and patios. Put the dates on a calendar so the checks happen.
Signs a slab needs a pro
Routine care can't fix every problem. Ask a concrete contractor to take a look if you find:
- a crack wider than a pencil, or one that has grown since last year's photo;
- one side of a crack sitting higher than the other, a trip hazard that means the base has moved;
- a section that has sunk toward the house and now sends water at the foundation;
- widespread scaling after a single winter;
- hollow sounds when you tap the surface with a hammer handle;
- steps pulling away from the porch or the house.
Questions before any repair
When a repair or replacement is on the table, ask each company:
- What caused the damage, and will the repair fix the cause or only the symptom?
- Which city permits and local contractor licenses does the job need, and who pulls the permits?
- What state license, if any, covers this work?
- Will the old concrete be patched, lifted or removed and replaced, and why that choice?
- Can you show me proof of liability coverage and workers' compensation?
A patch over a washed-out base rarely lasts. If water caused the problem, the drainage has to be corrected as part of the job.
Your concrete logbook
Keep one folder, paper or digital, with:
- the date each slab was poured and who poured it;
- sealer brand and the date of each coat;
- crack photos from every thaw season, side by side;
- repair invoices and warranty papers;
- notes on where ice and puddles keep forming.
That record makes the next conversation with a contractor shorter and more precise, and it travels with the house if you sell.