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What issue are you experiencing?

Cracks, water intrusion, crawl space moisture, settlement, etc.

Sagging Floors Repair, Dayton, OH

We Treat Your Home Like Our Own


4.8/5 Rating with 2,000+ Reviews
Acculevel, Inc. BBB Business Review

We can fix even the most stubborn sagging floors.

Your floor is supposed to be a smooth, even surface that is firm and steady beneath your feet. It is not supposed to have ridges like a potato chip. It should not offer a kid-friendly ski slope to one side, nor give way to you like memory foam insoles. And there is definitely not supposed to be a visible gap smiling at you between the baseboard trim and your flooring. You know these are signs of uneven floors, but do you know what causes them? Don’t worry, we can fix all of those issues.

Our company specializes in sagging floor repair in Dayton, OH. Our sagging floor experts can fix just about any issue regarding sagging or bowed floors. Contact us today to get your free estimate and what it will take to fix your sagging floors.

What causes floors to sag? A sagging floor is a sign that the “bones” of your home are diseased or damaged. In our experience, the earlier these issues are detected and addressed, the less expensive the repairs are. At Acculevel, we’ve been repairing sagging floors, warped floors, bowed floors and structural wood flooring systems since 1996.
sagging floor

What Causes A Slab Floor To Sag?

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.

What Causes A Floor To Sag If You Have A Basements Or Crawl Space?

For basements & crawl spaces, the suspect pool is considerably larger. The support structure is mostly wooden, which makes it susceptible to a variety of issues.

Water

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.

badly decayed joist splintering across support beam
This picture was taken by an Acculevel Project Manager on a routine free estimate appointment.

Humidity

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.

Insects

Insects are another frequent perpetrator; termites are a well-known home invader.  But there are also several subspecies of beetles that eat wood. Powderpost beetles are common and difficult to recognize.  They’re very small- the average adult beetle is smaller than a grain of white rice.  These tiny menaces lay their eggs inside wooden beams, and when they hatch, the larvae eat the wood.   Both beetles and termites will infest your structural wooden flooring system and gnaw damage as they go.

Human Error

Human error is another possibility, particularly if your home has been retrofitted with updated plumbing, electrical, or HVAC products.  Making room for these types of installations can be difficult, and sometimes a contractor will cut or notch some of the joists- or even the main support beam- to make room for new pipes or venting.  These cause weak spots in the flooring structure that will eventually crack or split.
wooden shim has compressed, lowering joist
This picture was taken by an Acculevel Project Manager on a routine free estimate appointment.

Age of Your Home

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

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.

Take Action

Contact Acculevel! We provide free estimates on sagging floor repairs.

Sagging Floors Repair FAQs

What causes sagging or bouncy floors?

Undersized or failing supports, wood rot from moisture, or settling piers can allow floors to dip and squeak.

How do you fix it?

We add or replace supports, install adjustable steel jacks, and address moisture sources that lead to deterioration.

Will this stop squeaks and uneven spots?

Stabilizing the structure usually resolves squeaks and reduces dips. Your project manager will explain what to expect.

How long does it take?

Most projects complete in 1–3 days, depending on access and scope.
Common signs include cracks in walls or floors, sticking doors or windows, and uneven floors. If you notice these issues, schedule a free inspection to identify the cause and recommended solution.
Most projects can be completed in a few days. The exact timeline depends on the severity of the issue and the type of repair. Our team will give you a clear timeline during your consultation.
Yes. We partner with leading financing providers so you can repair your home now and pay over time. Ask about our flexible payment plans during your free inspection.
We minimize disruption whenever possible. Many repairs are completed from the exterior, and our crews respect your property, leaving it clean once the job is finished.

Are repairs warrantied?

Yes—structural solutions include strong warranty options; details come with your proposal.

Our Completed Projects in Dayton, OH

Take a look through our recently completed projects to see real foundation repair and basement waterproofing work. Each project shows how Acculevel approaches planning, installation, and respect for your home.

We tackled a severe issue with a sinking foundation at Lisa's property in Dayton, zip code 45410. The garage floor was notably sinking, causing doors to malfunction and water to pool under the floor. Our team applied slabjacking techniques to elevate and stabilize the affected areas. This essential repair was completed to ensure long-term stability and functionality, with an approximate cost of $15,000.


January 29, 2026 Near Dayton, OH

We addressed a serious water intrusion issue in Jacquelyn's basement, located in zip code 45419. Our waterproofing efforts aim to prevent future water-related damage, ensuring the basement remains dry and secure. This service was completed at an approximate cost of $5,500.


January 23, 2026 Near Dayton, OH

Our latest project at Wagner's residence in Dayton involved addressing moisture issues in the basement of this century-old home. We focused on implementing effective waterproofing solutions to combat the persistent moisture problems. The estimated cost for this important service is around $6,700, aiming to ensure long-lasting protection.


January 23, 2026 Near Dayton, OH

We focused on addressing water intrusion in Marlyn's crawl space, sparked by a pest inspector's findings of water presence and musty smells. The inspection revealed potential moisture entry points. Handling this issue is crucial for preventing structural damage and ensuring a safe environment. The estimated cost for this waterproofing job is around $12,800.


January 13, 2026 Near Dayton, OH

We tackled significant window well concrete cracks at Christopher's property in the 45429 area. The existing cracks allowed outside visibility, posing potential structural concerns. Our team focused on repairing these issues to enhance stability and maintain the home's integrity. This crucial repair is approximately priced around $9,730.


January 13, 2026 Near Dayton, OH

Recently, we focused on a vital structural repair at Alison's home located in zip code 45402. The project involved replacing a compromised beam in the basement and stabilizing a section of the first-floor bumpout that was detaching from the main structure. Key highlights included using support beams and instituting foundational reinforcements to ensure long-term stability. This work, completed for roughly $13,000, has significantly enhanced the home's durability.


January 5, 2026 Near Dayton, OH

Our team has addressed critical foundation issues at the First Dayton Free Will Baptist Church, focusing on repairing cracks and leaning walls. We've reinforced the structure from both the external and internal walls, ensuring stability and long-term security. The project, with an approximate cost of $55,000, aims to maintain the integrity of the church in Dayton.


December 10, 2025 Near Dayton, OH

Recently completed a project involving foundation crack repair at Vicki's property in the 45429 area. The job focused on addressing visible cracks in the crawlspace area and ensuring structural stability of the exterior brickwork. The project's total came to an approximate cost of $10,800. The client's primary concern was resolved efficiently, ensuring long-term durability.


December 10, 2025 Near Dayton, OH

We've undertaken the task of stabilizing a settling slab foundation in Russell's 31-year-old home located in the 45432 area. The job involved addressing the separation and cracking in the brick and mortar due to the slab foundation's settling over a 25 ft area. We are exploring the installation of piers to ensure long-term stability, with the project coming in at around $13,000.


December 5, 2025 Near Dayton, OH

We addressed a settling issue in Jeff's driveway in Centerville (45459). The concrete slabs had shifted, leading to noticeable level differences. Using our specialized equipment, we lifted and stabilized the slabs to ensure a smooth and safe surface. This project came in around the $3.8K range, providing a long-term solution to the uneven driveway.


December 3, 2025 Near Dayton, OH

Recently addressed the unlevel floors in Yvener's home located in zip code 45417. Our team focused on structural repair to ensure even flooring on the main level. The project was completed for an estimated cost of around $3,600, enhancing the home's safety and stability.


December 2, 2025 Near Dayton, OH

Completed a basement wall repair for Tom in the 45458 area. The project addressed existing cracks, ensuring structural stability and appearance. The repair was successfully finished, maintaining a clean and functional basement space. The job was completed for an approximate cost of $13,000.


December 1, 2025 Near Dayton, OH

Katrekia's finished basement in the 45420 area required waterproofing due to water intrusion and visible wall cracks. We addressed the issues efficiently, ensuring the space stays dry and secure. Estimated project cost was around $3600.


December 1, 2025 Near Dayton, OH

Addressed a significant issue at a 1917 craftsman home in zip code 45409 with foundation cracks causing water intrusion. Our team worked on reinforcing the stone foundation, providing supports on the wall and ensuring adequate waterproofing was in place. The project, priced around $13,500, aims to preserve the integrity of this historic home and prevent future water damage.


December 1, 2025 Near Dayton, OH

In this recent project, we addressed settling issues in a vacant investment property by reinforcing and stabilizing the crawl space supports. The supports had been settling, and our team installed new jacks to level and secure the structure. Situated in zip code 45417, the work is essential to maintain the integrity of the home. The project was completed with an estimated cost of around $11,500.


November 26, 2025 Near Dayton, OH

Completed a structural foundation repair job for Mary in the 45458 area. This involved addressing foundation cracks and reinforcing structural integrity. The job was successfully completed with an approximate cost around $8500.


October 30, 2025 Near Dayton, OH

Recently inspected a crawl space with deteriorating walls that require replacement. The structural engineer identified these walls as needing immediate attention to ensure the stability of the foundation. This essential repair involves replacing two walls at an approximate cost of $18,000, aiming to restore structural integrity and prevent further issues. The project takes place in the 45420 zip code area.


October 29, 2025 Near Dayton, OH

We visited Dimitri's property in the 45440 area to address ongoing issues with the corner of his home's foundation. The cinder block foundation, which has a poured finish, faced multiple cracks on the corner over the years, yet has remained free from water intrusion. Our solutions focus on long-term stability, ensuring the foundation is reinforced properly, with services estimated around $6,800.


October 27, 2025 Near Dayton, OH

A recent project involved slabjacking to address uneven sidewalk sections. Our team ensured the slabs were leveled effectively, improving safety and aesthetics. This project took place in zip code 45440 and was approximately estimated at $5,000.


October 23, 2025 Near Dayton, OH

Our team addressed major foundation cracks for Diana in the 45429 zip code, focusing on an addition with structural concerns. The repair, valued at approximately $24,000, ensures stability and longevity for the property.


October 20, 2025 Near Dayton, OH

Addressed a water leak issue in Laura's basement located in zip code 45449. The walls were allowing water intrusion, requiring a comprehensive waterproofing solution. A permanent fix was applied without any visible mold growth, ensuring a dry and protected environment. The project was completed for roughly $9.7K.


October 16, 2025 Near Dayton, OH

Addressed a basement wall issue in the 45429 area for Carter. The wall was bowing out, likely from hydrostatic pressure, leading to water intrusion. Implemented structural repairs to stabilize the wall and manage moisture, approximately costing $14,000.


October 7, 2025 Near Dayton, OH

Diane's basement in the 45458 area has been facing water leaks during heavy rainfall, particularly in one wall of the finished basement. Our team tackled the problem by implementing a robust waterproofing solution to prevent further leakage. The basement's condition necessitated urgent attention to ensure a dry and secure environment. The project price was approximately $8K.


September 2, 2025 Near Dayton, OH

Kevin's home in Centerville (zip 45458) has been experiencing slow leaks in the basement, especially noticeable every spring. We addressed the issue by installing a comprehensive waterproofing system to manage the water intrusion effectively. The project, aimed at preventing further leakage and protecting the basement environment, costs approximately $13K.


September 2, 2025 Near Dayton, OH

Addressed significant foundation issues at a 1950s-built home showing multiple cracks and unlevel areas. Inspected and proposed installing piers to stabilize the structure, which had a noticeable 1-inch drop at the front end. Our focus was on reinforcing the foundation to prevent potential future water intrusion, ensuring the home remains secure whether the owner decides to sell or renovate. The estimated cost for this repair project was around $15,779.


August 27, 2025 Near Dayton, OH

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We want to make your repair process simple and stress-free. When you fill out our contact form, a team member will reach out within 48 hours. We'll ask about your home’s symptoms and schedule an on-site inspection to assess your needs and walk you through next steps.
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Top Rated Sagging Floor Repair

Sagging floors can be a pain to handle. Get expert help today!

We’re your local sagging floor repair experts, servicing Indiana, Kentucky, Illinois, Michigan, Ohio, Missouri, Wisconsin, and Iowa, as well as Western and Central Pennsylvania and Virginia, portions of West Virginia, southeastern Minnesota, eastern Nebraska, and northeast Arkansas.

At Acculevel, we pride ourselves on providing permanent solutions that are always affordable. Our goal is to get the job done right, not push the sale. If you’re looking for more information, connect with one of our project advisors.

For us, it’s not about a hard sell. It’s about finding the solution and stopping the problem at the source. We are committed to always telling you when you need a repair, and when it can wait.

Our Guarantee

Solution

We provide permanent solutions using the most technologically advanced repairs to help keep your home on a safe foundation.

Warranties

Our company always back our work with lifetime warranties and the best customer service in the industry!

Estimates Before

We will not do any unnecessary work after your inspection and estimate is. We encourage homeowners to get estimates before hiring.

Acculevel Service Areas

See What Your Neighbors Think

Real reviews from homeowners on Google
“I was impressed by the level of detail in the consultation. The representative was knowledgeable and friendly, making the process stress-free.”
— Zach K.
“The team at Acculevel was professional and thorough. They answered all my questions and provided a clear plan for my project.”
— Danielle R.
“Acculevel exceeded my expectations. The appointment was informative, and I felt confident in their expertise.”
— Jeremy B.

Don't wait – protect your home now

Foundation and waterproofing issues only get worse over time. Enter your ZIP code to see if you're in our service area and schedule a free inspection.
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