You don’t have to spend a ton the money to have a beautiful deck roughly your swim pool.

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Enter concrete.

Concrete swimming pool decks room affordable, relatively easy to maintain, and easy come customize. Lock can additionally be equivalent in aesthetics to an ext expensive swimming pool decking materials.

While concrete has actually a call for being solid and durable, it’s additionally prone to cracking. Through that, we median it’s practically inevitable the your concrete pool deck will certainly crack in ~ some suggest in time.

As fiberglass swimming pool manufacturers v years of installation experience, we have the right to confirm the cracking concrete is a usual issue in pool decks. Because it’s together a widespread problem for anyone who has actually concrete top top their building (we’re guessing 99.9% of every homeowners), we’re walking to define how concrete cracks, why the cracks, and what you deserve to do to repair it.

Why does concrete crack?

Concrete typically cracks for at least one of the complying with reasons:

Structural settlingGround movementPoorly placed regulate or expansion jointsImproperly blended concreteFluctuations in temperature

Cracks in a concrete deck deserve to be the an initial sign that structural settling or ground movement. If the cracks space still active, you have to hire an engineer to find out the cause and get to the root of the difficulty before you shot to patch the crack in your pool deck. This is particularly important for cracks close to the pool due to the fact that it can mean bigger and an ext expensive troubles for your swimming pool later if you don’t act fast.

Poorly placed control or growth joints can also cause your concrete swimming pool deck come crack. Concrete has actually a tendency to cracked every 10-12 feet, for this reason we produce intentional breaks to allow the crack to kind there. If the breaks space spaced too far apart, brand-new cracks will appear.

If her concrete was mixed with too lot water, this could lead to excessive shrinking throughout the curing process and, you guessed it, cracks in the deck.


Does concrete crack under heat?

Yes, concrete expands and also contracts once heating and also cooling, likewise referred to as thermal expansion. If development joints no spaced properly, there’s a possibility your swimming pool deck can type cracks as the temperature changes. In addition, warm weather can crack concrete together it cools down if the surface of the concrete is various from the concrete’s inner temperature.

Why walk concrete cracked in cold weather?

Your concrete swimming pool deck can crack in cold weather as result of freezing and thawing cycles, i beg your pardon have comparable effects as expansion and contraction in warm weather. As soon as water molecules in ~ the concrete freeze, they have the right to over-expand, leading to the concrete to rest or crack.

How to repair Concrete pool Deck Cracks

Now the you know why her concrete swimming pool deck deserve to crack, you probably want come know just how to deal with it.

Cracked concrete fix usually way filling the crack with an suitable material, like epoxy or grout. Let’s failure some the the most well-known options.

Concrete crack Filling

There are several ways to fill a concrete deck crack, including:

Concrete patch mixEpoxyPolymer-based fillerVinylGrout or cementMortar

Concrete patch Mix

The product that you usage to fill the concrete cracked will depend on the attributes of the crack. Your very first impulse could be to use a concrete job mix, yet these space best used to cracks broader than ¼ inch. The an excellent thing about a concrete spot is the you deserve to use the to match the texture of the surrounding concrete, yet the shade will an ext than likely be off.


Epoxy fillers are resin-based and work well for cracks that space up to ¼ customs wide. That is no recommended to shot to to fill wide, structural, or energetic cracks with an epoxy filler.

Polymer Filler

Polymer fillers are additionally resin-based and also can be offered for smaller or narrow concrete deck cracks. Polymer fillers are similar to epoxy fillers, but epoxy fillers room a tiny stronger, and also they take longer to cure.


Unlike most of the caulk-like concrete cracked repair products, vinyl concrete crack filler works good for tiny hairline cracks and wider cracks. You can buy a dried mix or pre-mixed product and also apply it over the crack with a trowel.


Wider crack in concrete can also be repaired making use of portland cement grout. This won’t form a structure bond through the concrete, yet it have the right to fill in the gaps and improve the illustration of your pool deck.


A dried mortar deserve to be packed right into the concrete deck crack as an alternate solution. This technique is both durable and also less prone to shrinkage, but it’s not perfect for shallow cracks.

Pro tip: deep, small cracks or cracks more comprehensive than ¼ inch might need to it is in stuffed through foam backer rod before the cracked filler is applied.

Mending bigger Concrete Cracks

Sometimes, applying a filler isn’t sufficient to deal with concrete cracks. Your contractor might decide to clip or “stitch” the crack closed if the damage is more extensive. This can also help to stop the cracked from opened up again.

We recommend rental a skilled if she unsure about which technique you will have to use to repair the crack in your concrete. The course, if you feeling comfortable enough repairing it yourself, you deserve to DIY the job.

Note: Unfortunately, cracks no the only issues that show up in concrete swimming pool decks, however they are the many common. Inspect out our article below on swimming pool deck and also patio materials to discover your various other options:

What are the finest Materials for a swimming pool Patio?


Concrete Deck Repair difficulties

If friend splurged and went all the end on multi-colored stamped concrete, you can be an ext than a small disappointed to see cracks forming on your beautiful poolside deck. We have the right to take procedures to prevent concrete cracks, however there’s no method to guarantee that cracks won’t appear.

Repairing concrete deck crack is often simple, however there space a couple of problems the you deserve to expect to encounter:


Matching the texture and also pattern come the surrounding concrete is doable, depending on the material that you use to patch the crack, but it won’t always be an exact match. Your pool deck crack might still be visible even after repair, but it will be a clearly shows filled crack instead of a mini canyon.


Unfortunately, matching the brand-new concrete patch color is even harder than matching the structure to the surrounding concrete. Uneven you paint your concrete deck through a suitable outdoor paint, the fix will stay visible.

And you understand what, it is okay. Take it a deep breath and remember that everyone’s concrete cracks.

Have various other questions or concerns around concrete pool decks? Ask away in the comments, and also we will get ago to friend as quickly as possible.

At flow Pools, we’re pan of concrete roughly inground swim pools many thanks to its short cost and also attractive look. However, we think the it’s approximately you to select the decking product that best reflects your tastes and suits her budget.

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If friend would like to reach out to us for pricing ~ above a fiberglass swimming pool, click the switch below and also we will call you soon.


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