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Unlike homes with basements or crawl spaces, a slab floor is solid concrete with no structural wood flooring system. For homes with this type of floor, soft soil or bad compaction is almost always the culprit. Once the soil is compromised, the slab will shift, and this creates the sagging or sinking effect. Pressure from that shift will sometimes crack the slab itself, causing high and low places in the flooring. To fix this type of damage, you need concrete slab repairs.
Water is a probable suspect, as it seeps into the ground around your foundation. The sill plate, wood beams, and floor joists are all vulnerable to this; these wooden components on top of your foundation are the wood framing system that supports your floor. Because it has direct contact with the concrete and can be over the exposed soil line, it often falls victim to water intrusion. Once water intrudes and saturates the wood, this leads to deterioration. It’s this deterioration that causes the floor system to fail.

But you don’t have to have standing water under your house to cause structural decay. High humidity can also damage the beams and joists that hold up your subfloor. Wood is highly porous and readily absorbs water from the air. Over time, this water saturation softens and rots the boards. As they decay, they compress under the weight of your home, lowering your floor sometimes by several inches.

Lack of building codes- or outdated ones- are another concern. A main support beam, the post that spans the length of your home, should be sized proportionately and supported every few feet. In many homes, the beams may not be the correct size or the support posts are installed too far apart. This over-spanning puts greater stress on the beam and makes it more likely to sag and potentially even fail.
Along the same lines, if your home is more than 50 years old, it’s also possible that inadequate materials are to blame. When a home is built, sometimes the beams or joists are not the correct dimensions. When this happens, a contractor will install a shim; a shim is a thin piece that adds a minimal lift to ‘even out’ the installation. Many times in construction, that shim was usually another piece of wood; at Acculevel we use steel shims to prevent compression or rot. These shims also allow us to increase the overall surface of the bearing load, so that the beam it’s supporting is not crushed by the weight of your home.
Technology is another age-related factor. New solutions and materials are always in development, but they take time to become commonplace. Before the 1970s, pretreated or pressure-treated lumber was not widely available or regularly used by builders. Lumber installed in its original ‘raw’ form is more vulnerable to insects and water damage.
New trends in home design can have a negative effect if a remodel doesn’t take the weight of the raw materials into account. Many older homes aren’t built to carry the load of solid granite countertops or stone-tiled floors and walls. Recreational items like a pool table or hot tub will also add significant weight to your floor system. These are all items that can put additional stress onto an already failing wood structure.
Contact Acculevel! We provide free estimates on sagging floor repairs.
Addressed water intrusion issues in Manpreet's basement near the window well where the floor meets the wall. Installed an effective waterproofing system to eliminate moisture and prevent future problems. Completed in the 46143 area for approximately $4,200.
Near Greenwood, IN
We addressed water intrusion issues in a basement and garage in zip code 46142 for Jacob. The basement's cinderblock structure had multiple cracks leading to water on the floor, particularly during heavy rain. The garage also experienced significant moisture on the floor, which was evaluated for drainage solutions. Our team implemented necessary waterproofing measures to ensure both areas remain dry. This project was carried out for approximately $3,247.
Near Greenwood, IN
Completed a slabjacking project on the front sidewalk and back patio for James in zip code 46143. The job involved leveling out uneven surfaces to ensure safe and smooth access. Pricing for this crucial service was approximately $4,600.
Near Greenwood, IN
We recently completed a slabjacking project for Terry in the 46142 area to address settling issues with the garage floor and patio. This necessary adjustment ensures that both surfaces are level and stable. The job was performed with an approximate budget of $4,600.
Near Greenwood, IN
Completed structural repairs in Mark’s crawlspace in the 46142 area, focusing on settling cracks. The job involved stabilizing and insulating to prevent further issues, ensuring long-term integrity. This comprehensive repair was carried out for approximately $40,000.
Near Greenwood, IN
Recently, we embarked on a project to tackle water intrusion issues in Richard's apartment unit at 46142. The job involved installing an exterior drainage system to redirect water flow away from the foundation, ensuring the space remains dry. Additionally, we implemented a trench drainage system inside the basement to prevent mold growth and potential structural damage caused by excess moisture. This comprehensive waterproofing solution was completed for an estimated cost of roughly $4,500, providing a secure environment for the homeowner.
Near Greenwood, IN
During a recent project in zip code 46142, we focused on enhancing the crawl space environment by installing a vapor barrier. This measure is crucial for moisture control and improves the overall condition of the foundation, offering a long-term solution to potential water-related issues. The project was valued at approximately $4,855, aligning with the customer's needs for improved property resilience.
Near Greenwood, IN
We tackled a significant driveway repair for Doug in the 46142 area. The project involved addressing several large cracks and ensuring the surface is leveled for long-term durability. Our team worked efficiently to complete the job with an approximate investment of $9,700. Now, the driveway not only looks better but is also more secure.
Near Greenwood, IN
We tackled an outdoor area surrounding a pool that required lifting and leveling due to cracks. Though not crumbling, the concrete showed signs of uneven settling. Our slabjacking services ensured a smooth and stable surface, enhancing both safety and aesthetics. Work was done in the 46143 area for approximately $2,335.
Near Greenwood, IN


