Sagging floors and failing supports don't fix themselves. We repair the structure under your home — permanently. Crawl space repair fixes the supports, and crawl space waterproofing keeps the water out so the repair holds. A dry crawl space stays solid; a wet crawl space keeps moving.
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Crawl space repair is structural work. It's about the skeleton of your home — the beams, joists, piers, and supports that hold up every floor you walk on. When those members rot, crack, settle, or fail, the entire house above feels it.
This isn't the same as crawl space encapsulation. Encapsulation controls moisture. Repair fixes the structural damage that moisture causes. Many homes need both — but the structural repair has to come first.
Adjustable steel support posts set on concrete footings. These replace failing wood posts, leaning block columns, and settled piers. They carry the load of the beam and floor system above, and they can be adjusted over time to bring floors back toward level. Adjustable posts are the backbone of most work down there. A crawl space with proper supports carries the floor instead of the beams sagging into the crawl space.
When floor joists crack, rot, or weaken from moisture and age, we sister new joists alongside the damaged ones to restore strength. Joists that are too far gone get fully replaced. This is what stops the bounce and sag in your floors. A crawl space with solid supports stops moving, and the floors above stop flexing. Crawl space problems always show upstairs before anyone looks in the crawl space.
The main carrying beam runs the length of your crawl space and supports the entire floor framing system. When that beam rots or cracks, the whole floor drops. We remove the damaged beam, install temporary shoring, and replace it with an engineered beam sized for the load. Beam replacement is the heaviest crawl space repair we do, and it solves problems bracing cannot. The beam sits on a footing poured in the crawl space itself.
These problems start small. They don't stay small.
Floors that dip, bounce, or feel soft when you walk across them mean the supports underneath have weakened. The joists or beams holding up your floor are no longer doing their job. Those are the classic signs a crawl space needs structural repair rather than a vapor barrier alone. A vapor barrier controls the crawl space air; it does not carry any load.
Cracks above doors and windows are a sign the structure below is shifting. As crawl space supports settle or fail, the framing above moves with them — a sign you may also need foundation repair.
When floor framing drops even slightly, door and window frames go out of square. Doors drag. Windows jam. The problem is underneath — not in the frame itself. Crawl space problems telegraph upward, which is why the repair starts in the crawl space. Fix the crawl space and the floor above settles down with it.
A damp crawl space leads to wood rot, mold growth, and decay in the structural members holding up your home. That musty smell means the damage is already happening. Water in the crawl space feeds it. A vapor barrier and a sump pump handle the water side, and crawl space waterproofing keeps the water from coming back into the crawl space.
Our Process
We go under your house and inspect every beam, joist, pier, and support. We document everything with photos and measure moisture levels so you see exactly what we see. We measure the crawl space end to end before quoting any repair. Every crawl space is different, and the crawl space tells us what it needs.
You get a written report showing what's damaged, what caused it, and what needs to be fixed. We tell you what's urgent and what can wait. No pressure. Just a clear plan and a fair price. Crawl space repair scopes are itemised: supports, beams, vapor barrier, and waterproofing. You can do the structural crawl space work first and the water side later.
Our crew installs steel support posts, sisters or replaces damaged joists, and repairs or replaces failing beams. Every post sits on a concrete footing. Every repair is built to last. A crawl space repair done on a proper footing does not settle again. Footings in the crawl space are what separate a real repair from a temporary one.
We walk you through the completed work and show you every repair. You get documentation of everything that was done and a warranty that backs it for the long haul. The crawl space is documented before and after the repair, so you can see what the crawl space looked like underneath.
We do structural crawl space work — not just encapsulation. Many companies install vapor barriers and dehumidifiers. That matters. But if your floors are sagging and your supports are failing, moisture control alone won't fix it. We repair the actual structure under your home. Jack posts, joist repair, beam replacement, foundation wall stabilization — the work that makes your floors solid again. Structural crawl space repair and crawl space waterproofing are two halves of the same job. Water problems in a crawl space cause the structural problems that follow.
Every repair starts with a real inspection. Not a quick look through the access door. We go under the house with lights, cameras, and moisture meters. We document everything, show you the photos, and tell you exactly what needs attention. If something doesn't need repair, we say so. You get the truth — not a sales pitch. Some crawl space problems need a full repair; some just need a vapor barrier and better drainage. We tell you which crawl space you have.
We back our work with a warranty and stand behind every repair we make. You get a written scope of work before we start, clear communication throughout the job, and a final walkthrough when it's done. No surprises. No hidden costs. Just honest structural repair from a team that knows crawl spaces inside and out. We work in crawl spaces every day, and the repair reflects what the crawl space actually needs, not a package sold to every crawl space on the street.
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Every crawl space is different. Cost depends on how many supports need repair, how much joist or beam work is needed, and how accessible the crawl space is. That's why we start with a free inspection — so you get an accurate, itemized quote based on your actual situation. No guesswork. Pricing follows the number of supports and the condition of the beams.
Crawl space repair fixes structural damage — sagging beams, rotting joists, failing support piers. Encapsulation controls moisture with vapor barriers and dehumidifiers. They solve different problems. Many homes need both, but structural repair should come before encapsulation. Fixing moisture won't stop your floors from sagging if the supports underneath have already failed. That is structural work in the crawl space, not a cosmetic fix.
Most crawl space structural repairs take one to three days. Smaller jobs like a few support posts can be done in a single day. Larger jobs involving beam replacement, multiple joist repairs, and foundation wall work can take up to a week. We'll give you a clear timeline before the work starts. Most crawl space repair finishes in a few days once the crawl space is cleared. Access is usually the slowest part of any crawl space job.
Yes. Sagging floors are one of the most common reasons homeowners call for crawl space repair. We install adjustable steel jack posts on concrete footings to support the beams and joists under your floor. The posts can be adjusted to gradually bring floors back toward level without stressing the structure. Lifting a crawl space back toward level is slow work, and rushing it causes new problems. The crawl space supports get adjusted over weeks, not hours.
In most cases, no. Homeowner's insurance typically covers sudden damage — a tree falling on your house or a burst pipe — but not gradual structural deterioration from moisture, settling, or age. Some policies have exceptions, so check with your provider. We also offer flexible financing to make crawl space repair affordable with manageable monthly payments. Crawl space repair and waterproofing can be financed together as one scope, which is how most crawl space projects get done.
Queen Foundation Repair provides crawl space structural repair services across 40+ cities in 14+ states. Find your local team and schedule a free crawl space inspection today.