Structural Home Repair

When moisture finds its way into your crawl space or basement, it quietly weakens the wood that supports your floors and home. Over time, that moisture can lead to wood rot, mold, sagging floors, and structural instability.

As a structural repair contractor serving the Carolinas for nearly 40 years, Moisture Loc identifies vulnerable areas in your home, eliminates the moisture causing them, and prescribes a solution for long-term stability and peace of mind.

Protect the inside of your home from rot and decay
Preserve floor strength and load-bearing capacity
Keep wood dry and away from moisture

Schedule My Free Inspection

Keep your home standing strong.

Sagging or Uneven Floors? Start Here

Uneven floors are one of the first things homeowners notice when they have structural instability. It’s also one of the symptoms that sends most people looking for help. A “bouncy” floor or one that slopes toward one corner is not only unnerving, but is also telling you the wood underneath has been compromised. And that’s usually due to moisture.

Sagging floor repair can go a lot of ways. The remedy could range from adding some extra support to replacing joists and beams altogether. It depends on how long the problem has existed and how weak the floor is. For more details about dealing with uneven floors, read How to Hire the Right Structural Repair Contractor.

Common Signs of Structural Issues:

Uneven or sagging floors
Cracks in drywall, doors, or window frames
Musty odors near floors
Staining on ceilings or flooring
Excess condensation or humidity indoors
Pest or termite activity

Moisture in your home is a formidable opponent, and one that won’t quit. The only way to protect your home’s structure is to eliminate the moisture that's undermining it and fix the damage. Moisture Loc’s team can do both.

Set your mind at ease.
Call 704-389-9828 or request a free home inspection today!

Looking for comprehensive moisture protection?
Learn more about our Crawl Space Encapsulation Services.

The Importance of Floor Joists

Think about everything in your home. Heavy furniture. Appliances. Even people. Floor joists are meant to support it all, day after day. It’s a critical function that requires quality wood and precise engineering. But even the best wood and plans have their limits, especially when moisture comes into play.

Because wood joists are hidden below your floors, damage often goes unnoticed until it’s advanced. By the time floors start to sag or cracks appear in your living areas, the wood below your home has already been weakened.

As with all structural and foundation issues with your home, it's never a good idea to take a wait-and-see approach. Wood doesn’t get stronger on its own. The best recourse is to call in professionals to survey the damage and prescribe a solution.

Structural Repair FAQs

Can crawl space moisture cause structural damage?

Without a doubt. A damp crawl space keeps the wood above it wet enough that it eventually starts to rot. In Charlotte, it’s damp A LOT, so the problem compounds quickly. Before you know it, joists and beams weaken, and the floors resting on them start to sag. The damage builds out of sight, which is why so many homeowners don’t catch it until a floor is already sagging. At that point, action has to be taken.

Why is moisture control a key component of every structural repair?

Replacing rotted wood without addressing the moisture that caused it just starts the cycle all over again, because the new wood will eventually fail the same way the old wood did. At Moisture Loc, we treat the two as one job. We repair the structure and stop the water source at the same time, whether that entails installing new drainage or doing a full crawl space encapsulation

Do I need a foundation repair company or a structural repair contractor?

If the problem is settling concrete, cracked foundation walls, or a moving slab, that’s foundation work. If it’s more wood-related, like rotting beams and sagging floors, that’s structural repair. Plenty of homes need both looked at, which is okay because we do both. A free inspection will help you better understand what’s happening under your home.

How much does structural repair cost?

It depends on how much damage has already been done. We don’t put a number on it over the phone. We need to survey the situation to determine the cause and cure. A free inspection will let you know what you’re dealing with. Any worthwhile structural repair contractor should provide one.

What does your warranty cover?

We always stand behind the work we do and pull the permits some contractors skip. We believe in doing things once and doing them right. The exact terms of our warranties depend on the repair, so we put the warranty in writing. You can review our warranties before you decide. Before any work starts, we inspect the crawl space and the wood itself and show you what we find. We explain the moisture source driving it and give you a written scope, so you know what we’re fixing, why, and what the warranty covers.

Structural Repair Solutions Include

Replacement

We strengthen or replace compromised joists and beams to restore proper load management, eliminate floor bounce, and stabilize sagging areas.

Supplemental Supports

Partnering with a structural engineer, we add necessary supports to redistribute weight and bring your home into better balance.

Moisture-Control Repairs

Structural fixes are effective only when moisture is addressed as well. We’ll fix your structural issues while eliminating the moisture that’s causing them.

Why Choose Moisture Loc

Nothing cookie-cutter. Never a franchise.

Family-owned and run since 1988. Moisture Loc has served local homeowners and builders for nearly 40 years. When you work in the same community for that long, you get to know it from the ground up. That’s why there isn’t a crawl space or basement issue we can’t solve.
We do it right, or not at all. That means finding the real problem, fixing it the right way, and standing behind the work and warranty. It also means pulling the required permits that others skip. Every job gets its own right solution, done to the standard your home deserves, and we demand.
You can breathe easier. When 40% of the air you breathe at home comes from your crawl space, you want to know it’s clean. Our encapsulation and waterproofing solutions keep humidity, mold, and wood rot out and a sense of security in. Plus, our foundation and structural solutions preserve the integrity and value of your home while delivering the peace of mind every homeowner wants.
This means more to us. We’re rooted here, not spread across states or managed by investors. With one office and one team, the work stays close and personal. Every job means more when you live in the community you serve. We don’t answer to anybody but our customers, the way it should be.

      
 4.9
 4.9
 Top Rated Service 
   Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
 
 
 
 
 
   
 
 
      Posted on Google  
   
   charlotteguy 
 96 days ago
 
 
 Trustindex verifies that the original source of the review is Google. After purchasing my home, I started noticing cracks in the drywall, just a few months later. After finding out the house had structural issues, I interviewed several companies and decided to go with moisture lock. If your  dealing with structural issues, I highly recommend Moisture lock for their expertise and customer service. Carlos, James and Scott were excellent. I am very pleased with my experience and the work they did to my home.
  
 
     Posted on Google  
   
   Melissa Tingler 
 97 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Moisture Loc has amazing customer service! Very professional, upfront, and proficient! Had them out for a French drain and they did not do me wrong. I would definitely recommend Moisture Loc for your waterproofing needs!
  
 
     Posted on Google  
   
   Jill Lipson 
 114 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I have nothing but good things to say about Moisture Loc. I was referred to them by a friend/neighbor, and they did not disappoint. Carlos was thorough in his initial inspection and project recommendations. There were no surprises. I felt like Carlos was honest when he gave us a quote for the work, and that was very important to me. James came with his crew to actually perform the work, and he was equally as outstanding. The work was completely efficiently and properly, and all projects passed Mecklenburg County inspection the first time around. I couldn't be more pleased and highly recommend this company!
  
 
     Posted on Google  
   
   Ellen Stevens 
 145 days ago
 
 
 Trustindex verifies that the original source of the review is Google. These guys did a great job! We had a moisture issue under the house which was messing up our hardwood floors. I had 2 other companies out and then spoke with my neighbor, who is a contractor. He highly recommended Moisture Loc. They didn't try and sell me on things that were not needed and came in less than the other 2 companies. Their work crew was on time and respectful and pleasant. The job is complete and I'm impressed. Highly recommend!
  
 
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   kevin sullivan 
 170 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Got 4 local quotes for encapsulating the crawl space of our home. This was a no-brainer, Moisture Loc was heads and tails above all others. Dan Richert was extremely professional, clear and to the point, no up sale, and answered all questions. Everyone involved including Rich Goldman and Brandon Cook were also extremely professional,  knowledgeable, and very responsive. Everything was on time. And thanks Ryan (office person) for being there and  answering the phone!  (seems to be a lost art these days). Highly recommend these folks!
  
 
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   Ink Floyd 
 183 days ago
 
 
 Trustindex verifies that the original source of the review is Google. If it’s anything crawlspace related, this is your first and only call. Highly recommended.
  
 
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   Rona Chen 
 215 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I am a realtor working on behalf of my buyer client to source quotes for repairs. Carlos has been extremely responsive and knowledgeable about his scope of work. I appreciate his honesty in not trying to upsell me on a sump pump because I recieved quotes from multiple crawlspace companies and called to inquire further about this. He was transparent from the beginning and explained why it was not necessary for this particular property, even before I had the chance to ask him. Thank you for your efforts to earn my business. I appreciate you putting the customers needs before your own pocket and look forward to doing continued business with you!
  
 
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   James Soloman 
 254 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Had a great experience with Moisture Lock.  They installed Helical Piers and re-encapsulated my crawlspace.  Jerry was an absolute powerhouse for installing the piers.  His knowledge and skills are off the chart.  The crawlspace work was great as well - Moisture Lock came in a fixed a botched job that was done by Carolina Crawlspace Pros who are now out of business.  Everything is in good order now and these guys did a really great job.
  
 
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   Martha Page 
 328 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Earlier this year I heard those words that no one wants to hear about their 7 year old house. “Your stairs are sinking “ I noticed the cracks but believed it was normal settling. Joe with Mint Engineers came out and introduced me to some unfamiliar words. Helical Piers and Angle Irons. In hunting for just the right company to help I chose Moisture Loc. Dan was always available to answer all my questions and REPEATED phone calls. Jerry did an amazing job placing the piers and worked extremely hard to make them as invisible as possible, letting me know he was treated my house as he would his own. Next Jeremy who was the brick mason arrived for tuck-pointing mortar and crack repair. A true artist. Even though I knew exactly where the cracks were  I could barely find them. Moisture Loc and their crew were truly amazing. Those stairs will outlive me. I couldn’t be happier with the completed project. Thanks to all for your hard work.
  
 
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   Liza Elliott 
 365 days ago
 
 
 Trustindex verifies that the original source of the review is Google. (Update: September 9, 2025) Our updated French drains and gravity drain have been installed by another reputable, hard working team from Moisture Loc. They were very professional, careful to listen to our concerns on our drain field and underground cables, arriving on time, getting the work completed in a timely fashion, making sure that the worksite was cleaned up before they left. Work quality was inspected by James, the supervisor, who is VERY knowledgeable and professional. Another outstanding job completed by Moisture Loc. We couldn’t be happier! Our neighbors are impressed as well. ( January 2025) Do your research, if you will, but start at Moisture Loc because you will not have to go any further. Moisture Loc is a fabulous company that is made up of people who are conscientious, skilled, hard-working, communicative, and take pride in their work. It is smaller than some, which is what we were looking for, feeling that the work quality would be better than with a larger company. They follow through with their commitments and their schedule is like clockwork. The cost of the work we had done was itemized and clear from the very beginning as well as reasonable. There were no hidden costs. We have recommended Moisture Loc to two of our friends and would recommend them to anyone that asked. Both friends have gone with encapsulation; one job in progress, one completed. Both are exceptionally happy with the company. Even the county inspector commented on the  exceedingly high-quality of the work done at our house. Our initial contact was Walt, who gave a very detailed diagram with written explanations of the foundation repair that we needed. (We had his recommendations, checked by a building contractor friend of ours, who was in total agreement with him). James was our inspector for the entire project. As promised he was there at both the beginning and after the work had been completed to make sure things had been done correctly. Marlon was the crew foreman who oversaw the work as it was being done. All three men were accessible, extremely professional, and proficient in their areas of expertise.. There were different crews that specialized in the various aspects of the work being done. Everyone was friendly, professional, hard-working, and efficient.. Our floors no longer squeak and sag after the piers were installed, the rooms no longer smell like mold, the house is much warmer (cooler in the warm months) with the new insulation, and the moisture barrier is doing its job of keeping out any dampness. The team left the yard in excellent shape as well. We feel like we have a brand new house! We are now (August 2025) adding an upgrade to our system, and we are once again using Moisture Loc because we trust them and the work that they do. Carlos was our initial contact this time. He is professional, not at all high pressure, and very thorough. He was clear about the issues that he was addressing as we explored different options and possibilities. He was open to hearing suggestions, and making sure that the best plan was put forward to meet our needs. Moisture Loc has 0 complaints with the Better Business Bureau. The number of complaints is the number to look at. It has an A+ rating. (Many companies have a A+ rating but with many complaints.) They have been in their family business operations for 37 years. It is an amazing company! Moisture Loc is everything a business should be . . .and more.