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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Lack of building codes- or outdated ones- are another concern.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.
Carried out a structural repair job to address significant sagging issues in the floor for William in the 40601 area. The process involved reinforcing the existing framework to restore stability. The approximate cost for this crucial repair was around $15,600.
Near Frankfort, KY
Connie’s basement required critical structural repairs as we addressed three walls needing new support due to previous leaks. The team installed re-support systems along the affected walls, ensuring stability and preventing future issues. Additionally, enhanced waterproofing measures were implemented to maintain a dry and secure environment. This comprehensive project was valued at roughly $15,750, providing safety and peace of mind.
Near Frankfort, KY
Completed a project replacing the vapor barrier in a crawl space for Toby in the 40601 area. This was necessary due to excessive dampness, providing enhanced moisture control to protect the home. The work was carried out with a focus on long-term durability and effectiveness, costing approximately $18,300.
Near Frankfort, KY
Completed a structural repair project in zip code 40601 for Brian. The task involved addressing significant vertical and stair-step cracks running from the walk-out basement. We reinforced the structure to prevent further damage and keep the integrity of the building intact. This essential repair was undertaken for around $17,900.
Near Frankfort, KY
Brian in zip code 40601 had significant structural issues with his walk-out basement showing poured concrete cracks extending to the brick exterior. Our team installed necessary reinforcements to address the vertical and stairstep cracks, stabilizing the structure and leveling the affected kitchen area. This comprehensive repair effort was priced at roughly $17,873.
Near Frankfort, KY
In Slav's basement, located in zip code 40601, we tackled water intrusion issues following heavy rains. Water was entering through the basement walls, damaging the interior. To address this, our team implemented comprehensive waterproofing solutions to prevent further damage. This essential work was completed for approximately $17K, ensuring long-term protection for the space.
Near Frankfort, KY
Susan's property in zip code 40601 required urgent structural repairs. Water damage had caused significant issues with the floor joists, particularly unleveling the floors in the kitchen area. Our team worked efficiently to stabilize the structure, preventing further damage and ensuring safety. The estimated cost for this essential repair was around $3,200.
Near Frankfort, KY
We undertook an extensive project focusing on waterproofing and foundational support for Cynthia's property in zip code 40601 after experiencing significant moisture issues. Our team installed a robust drainage system and sump pump to effectively manage water ingress. To address potential structural concerns, we implemented helical piers and wall reinforcement techniques, ensuring the property's stability and safety. These combined efforts provide a sturdy and dry environment, with the project aligning with a typical investment of around $24,000.
Near Frankfort, KY
We addressed significant foundational issues at Jerry's property in zip code 40601. Cracks and bowing in the foundation walls required immediate attention. Our team strengthened the interior walls with new supports and addressed external pressure by installing a thorough drainage system. This comprehensive repair enhances the structural stability and prevents future water intrusion, with the project costing approximately $45,400.
Near Frankfort, KY


