How long does concrete take to completely harden?

• <div><p>Concrete can take <b>up to 28 days</b> to completely harden, depending on the type and its water content. But it dries enough for foot traffic in 24 to 48 hours. If you're curious about <a href="https://www.angi.com/articles/how-long-does-concrete-take-to-dry.htm">how long it takes concrete to dry</a> entirely, the answer is more complex, so always check with the specific mixture instructions before adding heavy machinery or driving on new concrete.</p></div>

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Q: Can you screw directly into concrete?

• <div><p>Yes, you can screw directly into concrete, but only if you use screws specifically made for masonry or concrete. They're often labeled as masonry screws and made of steel and a special thread that provides a strong grip. However, even when using these screws, drilling a pilot hole first will make it much easier. </p></div>

Q: How thick should exposed aggregate concrete be?

• <div><p>A layer of exposed aggregate concrete should be 1 to 2 inches thick if you&rsquo;re installing it on top of existing concrete. If you&rsquo;re pouring a new slab with the finish, slab thickness will depend on the application. Exposed aggregate concrete driveways should be 4 to 6 inches thick in most cases or 8 to 12 inches for commercial vehicles. Sidewalks, patios, and walkways should be 4 inches thick. </p></div>

Q: What is the difference between scaling and spalling concrete?

• <div><p>While the two are similar, spalling occurs from deeper within the concrete than scaling does, causing larger fragmentation on the surface.</p></div>

Q: Can you seal an old garage floor?

• <div><p>Yes, you can seal an old concrete floor as long as you remove stains and repair damage before sealing. Remove everything from the garage and clear the floor throughout with a concrete cleaner and power washing. Fill in cracks larger than 1/8 of an inch wide and remove all grease and rust stains before sealing. Make sure your concrete is fully dried before applying sealer.</p></div>

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*The Angi rating for Decorative Concrete Service companies in Prattsburgh, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Decorative Concrete Service needs.

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Last update on November 20, 2025

Reviewed in October 2021
Lewis Construction did a great job on installing a new concrete sidewalk. Dan was very professional and finished the job in a timely manner. I would definitely recommend them and do business again with them.
Lewis Construction and Remodeling
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Reviewed in August 2013
Matt, was on time for our initial appointment and the office followed up in a timely fashion with a clearly written detailed estimate. we hired them to do the work. They estimated that they would begin the work about mid July. With the wet spring and their busy schedule, the start of the...
Architectural Concrete Plus
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Reviewed in June 2014
Pat and his crew were kind, friendly, and professional. First, Pat always called us back and kept us informed of the project status. He was there to answer any questions no matter how insignificant they were or how busy Pat may have been. Pat is a good salesman but his recommendations are...
Caldwells Custom Concrete Inc
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Reviewed in April 2016
very seamless. Ease of communication and implementation of changes as we went we very smooth.
LAKE CONSTRUCTION
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Reviewed in May 2016
DO NOT WASTE YOUR HARD EARNED MONEY ON THIS COMPANY! I spent more than $15,000.00 on a pool deck. Started several weeks later than promised. Never called to say when they were running last. When done, Steve Hufcut said he’d return at the end of the season to put a final seal on it. Did not...
Hufcut Concrete Corp
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