Fort Collins Concrete Repair

Almost every repair call up here opens the same way. Somebody has been staring at a crack for two summers and wants a second opinion on whether it matters. Fair question. On a Larimer County lot the answer usually comes down to one thing: is the trouble in the concrete, or is it in the ground holding that concrete up? Damage that lives in the slab we can fix, and the fix lasts. Support that has quietly gone missing is a different job with a different bill.

So we sort work into three buckets before quoting anything. Patch it, lift it, or take it out. Old Town keeps us in the first bucket, because flatwork that old tends to lose its top layer long before the slab itself gives up. Out around Rigden Farm and The Landing the concrete is young, and when young concrete fails it usually means the base got rushed. That isn't a patching problem. Knowing your bucket is what keeps you from paying twice for the same square foot.

Reading the damage before you spend anything

Take a screwdriver to the worst spot. If the tip skates across hard concrete and won't drop into the crack, you're looking at something cosmetic, and cosmetic is cheap. If the tip crumbles the edges, or the two sides sit at different heights, the slab is reporting that whatever held it up has moved. That's the fork in the road.

Routing and sealing is honest work on a tight crack. We open the line into a clean channel, blow it out, and fill it with a flexible sealant that can stretch when the panel shifts in January. A partial-depth patch handles spalled edges and popouts: saw a square boundary so there's no feathered lip, chip back to sound material, bond, place, finish. Both buy real years. Neither one puts dirt back under a slab that's bridging a void, which is why we probe the base with a rod before we quote a patch. Sometimes the useful thing we do on a visit is talk you out of spending.

Fix it now, hold it till spring, or replace the panel

Repair season this far north

Fort Collins sits north of most of our work, and it shows on the calendar. Our patching window opens later in spring than it does down the Front Range and it shuts earlier in fall. Cement-based repair material wants a surface around 45 degrees and climbing, held there while it cures. By late October we lose that around two in the afternoon. In February some days never give it to us at all.

April through October is when we run heavy on repairs, and we take the shoulder weeks one forecast at a time. Cold work isn't off the table. Blankets help, and certain polymer patch materials set fine in cool air as long as the slab under them isn't frozen. Troweling a patch onto frozen concrete is the thing we flatly won't do. It debonds by March and you buy the same repair a second time.

Then there's what you put down after. Magnesium chloride eats patch material faster than it eats the concrete around it. Sand for grip the first winter, shovel early, and skip the blue pellets.

Half the cracks folks apologize for are fine. The ones that get our attention are quiet: edges drifted apart, joint packed with soil instead of sealant, a fan of silt where water has been running under the panel. That slab keeps moving until somebody fixes where the water goes.The crew lead's read on it