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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Lack of building codes- or outdated ones- are another concern.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.
An inspection of a basement revealed water seepage concerns, with noticeable white chalky efflorescence. No actual water was visible during the inspection. Additionally, attention was given to the patio area's cracks, which might contribute to water intrusion problems. The estimated cost for addressing these concerns is around $2,200.
Near Fishers, IN
Recently completed a slabjacking project for James to address settling issues in the patio area, located in zip code 46033. The repairs focused on stabilizing the surface to prevent further shifting and maintain structural integrity. The project was efficiently managed to ensure a smooth and even finish, with an approximate cost of $2,000.
Near Carmel, IN
Tackled the issue of settling footers on the front porch for Jeff, who first noticed the problem 3–4 years ago. Despite previous installations of piers and shims, further settling was observed this year. Our team reinforced the foundation to ensure long-term stability and safety. The job was completed in zip code 46202, at an approximate cost of $8,300.
Near Indianapolis, IN
We tackled a crucial stabilization project for Jamie's home, addressing unlevel foundation issues causing wall cracks. Our team reinforced the crawl space to restore structural integrity, completed at an approximate cost of $6,800 in the 46112 area. This essential repair ensures long-term safety and security for the property.
Near Brownsburg, IN
Addressed structural integrity issues in Susan's home, located in zip code 46202, involving a sinking front porch and cracked crawlspace blocks. The porch has dropped towards the left southside, causing concern of potential crawlspace impact. Hand railing adjustments are necessary due to the drop. This project was handled for around $18,000.
Near Indianapolis, IN
We addressed a structural concern at Susan's residence in zip code 46202. The project focused on a significant horizontal crack on the front porch and a shifting hand railing. This was crucial for the property's structural integrity, considering the front porch had noticeably dropped towards the southside. The work was handled for an approximate cost of $17,700.
Near Indianapolis, IN
Our team tackled a project focusing on structural repairs in John's outdoor living area in the 46077 region. The work involved addressing issues in the crawl space to enhance stability and ensure long-term durability. With an estimated cost around $13,900, this repair project aims to provide a safe and secure foundation for John's home.
Near Zionsville, IN
In zip code 46236, we tackled a critical foundation maintenance issue for Pam. The project focused on a visible hole on the left side, which was expertly addressed with carbon fiber strap installation. This robust solution reinforces the foundation, ensuring long-term stability. The work was carried out for approximately $5,000, maintaining the structural integrity of Pam's home.
Near Indianapolis, IN
Just finished installing carbon fiber straps to address foundational cracking on the northeast side of Austin's property in the 46234 zip code. This was a follow-up to a prior project on the opposite side, ensuring enhanced structural stability. The project ran at an estimated cost of around $4,550, a worthwhile investment for maintaining the property's integrity.
Near Indianapolis, IN


