Concrete Repair FAQ

Cracks, erosion, and stains on concrete surfaces can look unsightly. But it can also compromise the integrity of the concrete, which reduces its longevity. Exterior concrete surfaces (such as driveways and patios) can last for 20-40 years if they’re properly maintained, but interior surfaces (such as foundations, floors, and countertops) can last even longer. Doing regular repairs and resealing can ensure its durability over the years and can help preserve its original appearance for many decades.

concrete texture

Here are some common questions people ask about concrete repair.

How can I fill a large hole in exterior concrete?

Sweep and wash any debris or dirt out of the hole before you fill it. Use a sand mix of concrete for small or medium holes, but you will need to use a gravel mix to fill up larger holes.

How can I repair cracks in exterior concrete?

If you have small cracks or minor pitting and spalling, use a crack filler in the same way that you would use grout or spackle. But for larger cracks, you will need to apply a concrete resurfacing product. Use a towel or squeegee to pack the material into the crack while smoothing it over pitted or uneven surfaces. Be sure to follow the manufacturer’s instructions to make sure it’s cured properly. Once you have repaired the surface, investing in a polyurethane sealer is a good way to minimize how much it will get damaged in the future.

Can cracked or eroded stairs be repaired, or should they be replaced?

You can patch cracked stairs with a crack filler. But if large chunks of concrete are starting to crumble away, the damaged sections will have to be removed before a quick-setting filler is molded and shaped. If you have a lot of stairs that are damaged beyond repair, they can be removed with a sledgehammer or jackhammer so the broken area can be reframed and re-poured.

How can a damaged concrete foundation be repaired?

You will need to contact a foundation repair specialist for this kind of damage. If there are visible cracks in the concrete or you have uneven floors around your doors and windows, the damage is serious enough to require the help of a professional.

Can stains or discoloration on interior concrete surfaces be repaired?

Scrubbing the surface with hot water may release the stain from the concrete surface. But if it’s still there after repeated attempts, you might be able to use an acid wash to penetrate the surface and release the stain. If neither of these options is effective, your only option is to use a stain or colored sealer to blend the colors in or to recolor the entire surface.

Can scuffs and scrapes on an indoor concrete surface be repaired?

If an indoor concrete surface has a lot of scuffs and scrapes that are visible enough to warrant repair, the entire surface will need to be resealed. In some cases, you can apply the same brand of sealer that you used in the last treatment if the surface is clean and dry. But there may be times when the existing sealant needs to be stripped before a new layer can be applied.

When does it make sense to raise a concrete surface instead of replacing it?

Raising concrete can be a great alternative to replacing it. If it’s a walkway, driveway, patio, or floor that’s still structurally sound (which means that it has no major cracks, flaking, or scaling) and has just settled, raising it might be the most cost-effective solution. This is especially true if you have a small section that needs to be repaired, because many concrete contractors won’t do small jobs. Raising it may be your only option. It’s a quick process that doesn’t come with as much hassle. Most projects are completed in about 1-2 hours.

Is polyurethane injection better than mudjacking?

Using polyurethane injection to raise a concrete surface and stabilize the soil has a lot of advantages over mudjacking, which uses cement and sand. But here are some of the important ones:

Longevity — Polyurethane won’t shrink or break down over time.
Aesthetics — Smaller and fewer injection holes are needed to complete the job, so it will look better overall.
Performance — It’s lighter compared to sand or cement, and it’s more effective at filling open voids.

If you’re looking for one of the best places for foundation repair in Corpus Christi, be sure to get in touch with Streem Foundation Repair.