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Avatar for Groundworks
Groundworks
4.7(
474
)

Serving Harmony, NC and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2003

Free estimates

Emergency services offered

"Goliath Wendell and Daniel Carter were very open and honest regarding the potential issues of trying to refloat the slab to level it out. They pointed out the problem could actually get worse and there probably was not any void areas under the concrete to fill with polymer. They also pointed out the existing cracks would likely widen and openup an elevation gap between two slabs. I really appreciate their advice"
Foundation
Foundation
Foundation
Foundation
Foundation

+16

109 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Vanguard Concrete Creations, LLC
Vanguard Concrete Creations, LLC
5.0(
8
)

Serving Harmony, NC and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

We take great pride in our experience, expertise, quality and customer service that we provide to meet every consumer's needs. It is our mission to provide excellent customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.\n

Concrete driveway
Concrete driveway
Concrete driveway
Concrete driveway
Concrete driveway

+3

Tar Heel Basement Systems, LLC
New to Angi

Serving Harmony, NC and surrounding areas

Approved (Corporate)

In business since 2003

Free estimates

Credit card accepted

Tar Heel Basement Systems, A Groundworks Company, specializes in helping homeowners with their foundation repair, basement waterproofing, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across North Carolina. With fully trained technicians, industry-leading products, and nationally backed warranties, Tar Heel Basement Systems is here to restore your foundation or crawlspace.

Avatar for Saber Concrete and Foundation
Saber Concrete and Foundation
4.8(
52
)

Serving Harmony, NC and surrounding areas

In business since 1999

Free estimates

Credit card accepted

"Josh is truly the best. I try to seek out the best for my area, and Josh with Saber concrete and foundations was the best. A portion of crack in garage floor had dropped as well as a couple sections of driveway with many cracks. Driveway and garage floor level and all cracks filled. Garage floor and driveway are both over 25 years old. The work he did will allow me to not worry about replacement for many years. He knows his business and provides exceltional work. Very responsive when needed. He's honest about the project and his crew are hard working. He cares about his customers. Good work is always my #1 concern and and was not disappointed. It was just an extra that he is also a very kind caring person. Good job Josh."
Recommended by100%of homeowners
Avatar for Cantey Foundation Specialists
Cantey Foundation Specialists
4.0(
32
)

Serving Harmony, NC and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"We found Cantey Foundations to be the solution to our sagging floors and cracking walls - even after speaking with some of the other popular alternatives. Our team, consisting of Dallas, Corey, David, Dallas and Alex((2 Dallases),were professional, knowledgeable, polite and efficient. Not only did we see a definite change in the sloping floors, but the cracks closed up and doors stopped sticking. When the crew was done, they cleaned up everything. Although it is only a week since the work, we do not have any concerns because of Cantey's warranty, which guarantees the work for 25 years. We were able to put off other recommended work for a later date, and plan to take advantage of that when our pocketbook allows. I will have no problem calling them back."
Before PolyLevel LIft
New Gutter Shutter System
Concrete Before Columbia, SC
Driveway Level & Lifted
This is just one of the foundation cracks we found on this foundation. It's what we call a stair-step crack.

+137

Recommended by90%of homeowners
Avatar for Locklear Builders
Locklear Builders
5.0(
5
)

Serving Harmony, NC and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"Locklear builders did an excellent job on my new driveway! The removed the existing one replaced the current in a matter of 2 days. They performed the job and completed it and very professional and timely manner. I highly recommend locklear builders for all your concrete needs !"
Recommended by100%of homeowners
Showing 1-10 of 31
Concrete Leveling questions, answered by experts

Mudjacking typically takes 24 to 72 hours (one to three days) to dry and cure completely before you can resume normal use. The exact time can vary depending on the size of the project. Because the slurry mixture contains cement, it must fully harden to ensure that added weight from walking, furniture, or vehicles won't shift the concrete slab. A professional contractor can advise you on when the surface is safe to use. For comparison, if you use polyjacking instead, the polyurethane foam can dry in just a few minutes, but it's best to wait about an hour before use.

The method involves lifting settled concrete using pressurized cement slurry via drilled holes. This solves uneven surfaces and prevents further settling.

Most states and municipalities don’t require concrete mudjacking companies to carry a specific license, but they usually need to have a general contractor’s license, and they should be fully insured. The only exception is if the mudjacking company provides foundation repairs as well, or if it offers mudjacking for home foundations. In that case, they will typically need a foundation repair contractor’s license. You can check state requirements and then use Angi’s license lookup tool to confirm that a company is properly licensed to provide mudjacking services in your area.

Trenching and boring are two distinct methods for installing underground utilities. Trenching involves digging a channel using equipment like an excavator, trencher, backhoe, or shovel. While it is a simpler process, it causes significant disruption to the surface, landscaping, and surrounding ecosystems.

Boring, also known as directional boring, is a less invasive alternative that uses a drill to create a tunnel for utility lines without disturbing the surface. This method is more precise and is ideal for installations that need to go underneath buildings, roads, or bodies of water. Although boring is less disruptive, it is generally more expensive than trenching.

The polyurethane used for polyjacking will expand and cure in 15 to 30 minutes. After that point, your slab will be safe to walk on and even drive on in the case of a sidewalk or concrete driveway. Double-check with your concrete lifting specialist to confirm a curing timeline, as products can differ.

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