Serving Northern Virginia, D.C., and Suburban Maryland
Sinking Floor Problems
Uneven or unsettled floors are a common issue to experience when support beams in your crawl space are in disrepair. Crawl space sag can be identified both inside and outside of the crawl space itself. NV Waterproofing & Foundation Repair can assess your crawl space and restore sinking floors with our innovative SmartJack® crawl space support system.

Issues with your crawl space lead to sinking interior floors.
There are a few telltale signs that you have uneven floors in your Washington D.C. home, including:
But, don't panic! With the help of a trained professional like NV Waterproofing & Foundation Repair, your sinking floors will be an issue of the past in no time.

Crawl space with structural damage in Arlington, Virginia, the District of Columbia, and Maryland.
There are a variety of reasons for your sinking crawl space, such as:
While a complete floor collapse is uncommon, a sagging floor can collapse if the structural damage is severe enough. In most cases, however, sagging floors develop gradually, giving homeowners time to identify and repair the problem before it becomes a major safety hazard.
Ignoring a sagging floor can allow the damage to spread. As crawl space supports continue to settle or weaken, floors may become more uneven, gaps can widen, and additional stress may be placed on floor joists and other structural components. Over time, this can lead to more extensive — and costly — repairs.
The good news is that these problems can often be repaired before a collapse occurs. Solutions like our SmartJack® crawl space support system reinforce weakened crawl space supports, restore structural stability, and help prevent future settlement.
There are a couple of reasons for uneven floors in your home. Sinking floors may be due to a foundation problem such as foundation settlement. Another reason your floors might be sinking is due to moisture in your crawl space, leading to wood rot and ultimately a sagging crawl space as the structure weakens.
A general rule of thumb is to worry about uneven floors if they slope more than an inch and a half over twenty feet. However, as with many home issues, it's better to be proactive to ensure you don't run into additional problems in the future. Also, uneven floors can become dangerous for people who have mobility issues, so it's important to have a professional complete an inspection as soon as possible to determine whether you should take action.
Plenty of old homes have uneven floors due to foundation shifts over time. However, if your floors slope more than an inch and a half in twenty feet, that could indicate a more serious issue. To prevent costly future repairs, you should consider having an expert complete a comprehensive inspection to determine the source of your sloping floors and provide you with a long-lasting solution.
Yes. Sagging floors typically worsen over time if the underlying structural problem isn't addressed. Weakening floor joists, settling crawl space supports, excess moisture, and unstable soils can all allow the floor to continue sinking, leading to larger gaps, more uneven floors, and additional structural damage. Our SmartJack® system can reinforce weakened crawl space supports, stabilize your floors, and help prevent future settlement.
A floor that's at risk of collapsing often shows warning signs first, including sagging or sinking floors, soft or bouncy spots, large cracks in walls or ceilings, sticking doors and windows, and visible damage to floor joists or crawl space supports. While these symptoms don't always mean collapse is imminent, they do indicate a structural problem that should be inspected promptly. Depending on the cause, installing SmartJack® crawl space supports may help stabilize and restore sagging floors.
Bad floor joists often cause noticeable problems throughout your home. Common signs include sagging or uneven floors, soft or bouncy spots, squeaky floors, cracks in walls or ceilings, and doors or windows that stick. In your crawl space, damaged joists may appear cracked, rotted, warped, or insect-damaged.
A professional crawl space inspection can identify the cause and determine whether repairs or our SmartJack® system are needed to stabilize your floors and restore structural support.
A sinking floor may not always be obvious at first, but there are several signs to watch for. Floors may appear uneven or sloped, develop low spots, or feel soft and bouncy underfoot. You may also notice gaps between the floor and baseboards, cracks in drywall, or doors and windows that suddenly become difficult to open or close as the floor settles.
It's common for older homes to develop some unevenness over time, but sagging floors are not considered normal and shouldn't be ignored. While age can contribute to structural wear, sagging or sloping floors are often a sign of an underlying problem, such as weakened floor joists, deteriorating support beams, settling foundation soils, or excessive moisture in the crawl space.
Even if your floors have been uneven for years, they can continue to worsen if the root cause isn't addressed. A professional inspection can determine whether the issue is cosmetic or the result of structural damage that requires repair.
If you've noticed your floors becoming more uneven, feeling soft or bouncy, or causing doors and windows to stick, it's a good idea to have your crawl space and foundation evaluated before the damage progresses.
Whether homeowners insurance covers sagging floors depends on the cause of the damage and your policy. Insurance may cover sudden, accidental damage from a covered event, but it typically doesn't cover sagging floors caused by long-term issues like crawl space moisture, wood rot, settling, or normal wear and tear.
If your floors are sagging, it's best to schedule a professional inspection to identify the cause and review your policy with your insurance provider to determine what coverage may apply.

Fix crawl space sagging today with NV Waterproofing & Foundation Repair.
If your floors are sagging, uneven, or bouncy, the problem won't fix itself. NV Waterproofing & Foundation Repair can identify the cause of your sinking floors and recommend the right repair solution for your home. Using the SmartJack® crawl space support system, we stabilize weakened crawl space supports, restore structural stability, and help protect your home from future damage.
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