What to Expect With Your New Concrete

A Homeowner’s Guide to Care, Curing, and Natural Characteristics
Congratulations on your new concrete! A professionally poured concrete installation adds incredible value, functionality, and beauty to your property.
While concrete is one of the most durable building materials on earth, it undergoes a natural curing process that changes its appearance over time. To help you understand what is completely normal during this phase, we’ve put together this quick guide on what to expect.
Section 01

The Reality of Hairline Cracks (They Are Normal!)

We like to say there are two guarantees in the concrete world: it will get hard, and it will crack.
As concrete cures, it naturally shrinks due to evaporating water. This internal stress almost always creates microscopic “hairline” cracks. Please don’t panic—this is completely normal and does not mean your concrete is structurally flawed.
Our Warranty Policy: Because hairline cracks are an inherent characteristic of the material, cracks that are under 1/4” in width or vertical displacement are not covered under warranty. These minor imperfections do not affect the strength, durability, or structural integrity of your concrete.
Section 02

Why We Install Control Joints

You will notice straight lines cut or grooved into your new concrete. These are called control joints, and we place them strategically throughout your project.
Think of control joints as “intentional weak spots.” Since we know the concrete wants to crack as it shrinks, these joints encourage the concrete to crack neatly at the bottom of the groove where you can’t see it, rather than web-spreading across the smooth surface. While they help mitigate random cracking significantly, they aren’t a 100% guarantee against surface hairlines.
Section 03

The Best Thing to Do? Leave Them Alone.

If you do notice a hairline crack appear outside of a control joint, the absolute best thing you can do is leave it alone.
Homeowners are often tempted to run to the hardware store for a tube of DIY concrete caulk or sealer to “fix” it. However, trying to fill a hairline crack usually results in an ugly, messy smear that highlights the crack rather than hiding it. Because the crack is microscopic, the sealer won’t penetrate deeply, and it will look significantly worse than the natural hairline itself.
Section 04

Winter Weather & Spalling (Surface Flaking)

Harsh winters can take a toll on outdoor concrete surfaces. Sometimes, the very top layer of concrete can flake or chip away—a process known as spalling.
The Danger of Road Salt
Even if you never personally apply de-icing chemicals to your driveway, your cars will naturally pick up aggressive road salt from public streets during winter storms. When you park on your driveway, that salty slush melts off your tires and transfers directly onto your concrete. This creates a rapid, destructive freeze-thaw cycle that can cause spalling.
The "Concrete-Safe" De-Icer Myth
Be highly skeptical of products at the hardware store marketed as “concrete-safe” ice melters or chemicals. The truth is, there is no such thing as a concretesafe chemical de-icer. Products containing calcium chloride, magnesium chloride, or urea still chemically alter the freezing point of water, forcing the concrete through a brutal, unnatural freezethaw process that degrades the surface. Do not use them.
A Note on Material Defect
If concrete suffers from a true “bad batch” or a materials mix issue, spalling will occur within the first few weeks of the pour. Spalling or flaking that occurs months later—especially following a freezing winter—is a result of environmental factors and chemical exposure, which are beyond our control and not covered under warranty.

Safe Alternatives for Traction: If your new concrete is icy and you need traction for walking or
driving, plain sand or non-clumping kitty litter are excellent, 100% safe alternatives. They
provide immediate traction without triggering any destructive chemical reactions or damaging the
surface finish.

Tips for the Curing Phase & Color Changes

Have a Question About Your Concrete?

Our team serves homeowners across Fairfax, Northern Virginia, and Maryland. We’ll give you a straight, no-pressure assessment.