Direct Answer
A garage floor may sink when the soil beneath the concrete slab becomes loose, weak, poorly compacted, washed out, or unsupported. In Florida, common causes include poor soil compaction before construction, water intrusion, plumbing leaks, drainage problems, soil washout near the garage opening, erosion beneath the driveway or garage transition, voids under the slab, and settlement of fill soils.
A sinking garage floor is not always the same as a sinking foundation. In many homes, the garage floor slab can settle independently from the foundation walls or footings. But if the sinking garage floor appears with cracks in nearby block walls, stair step cracks, gaps around the garage door, sticking doors, exterior concrete settlement, or signs of soil washout near the foundation, the issue should be evaluated to determine whether the problem is isolated to the slab or connected to broader foundation movement.
A sinking garage floor is usually a slab support problem, but because the garage is attached to the home, it should be evaluated carefully. The right repair starts by determining whether the issue is limited to the garage slab or connected to a larger structural pattern.
Homeowner Tip: A sinking garage floor does not automatically mean the home’s foundation is moving. The key is determining whether the slab is settling by itself or whether nearby walls, door frames, driveway areas, or foundation soils are also showing movement.
Read more: Concrete Lifting
What It Means When a Garage Floor Is Sinking
A garage floor is typically a concrete slab resting on soil or fill material beneath it. If that soil compresses, washes out, erodes, or was not compacted properly before the slab was poured, part of the garage floor can lose support and move downward.
Homeowners may notice:
- Cracks in the garage floor
- A garage floor that sinks, dips, or slopes
- Water entering the garage
- A trip hazard between the driveway and garage floor
- Hollow-sounding concrete
- A visible gap under the slab edge
- A garage door that does not seal evenly
- Cracks in nearby garage block walls
- Stair step cracks in the garage wall
- Driveway settlement near the garage
Some garage floor settlement is isolated to the slab. Other times, the same soil or water condition affecting the garage floor may also affect the driveway transition, garage walls, stem wall, foundation soils, or nearby exterior concrete.
The key question is not just, “Why is the garage floor sinking?” The better question is, “Is the slab settling by itself, or is the surrounding foundation area moving too?”
Read more: Voids Under Concrete Slabs: What Causes Them and How to Fix Them
Common Causes of Garage Floor Settlement in Florida
Garage floors in Florida often sink because of soil and water conditions below the slab.
| Common Cause | How It Can Affect the Garage Floor |
| Poor soil compaction before slab placement | Soil or fill may compress later under the weight of the slab, vehicles, and storage loads |
| Soil washout from drainage or water movement | Water can remove support beneath or along the edge of the garage slab |
| Voids beneath the garage slab | Unsupported concrete may sound hollow, crack, dip, or settle |
| Loose sandy soils or settlement of fill soils | Shallow soils may shift, compress, or lose support over time |
| Water entering through the garage door opening or driveway transition | Repeated water intrusion can soften soils or wash out support |
| Plumbing leaks or water line leaks beneath or near the garage | Active leaks can create voids or weaken soil support |
| Driveway settlement affecting the garage transition | Weak soils may affect both the driveway and garage slab |
| Poor grading sending water toward the garage | Water may repeatedly move toward the slab and foundation area |
| Erosion near the garage slab edge or stem wall | Edge support may weaken and allow the slab to settle |
| Sinkhole-related conditions in certain Florida regions | Deeper ground movement may contribute in some areas |
Poor compaction is one of the most common causes. If the soil or fill below the garage slab was not compacted properly before the slab was poured, it may settle later under the weight of the slab, vehicles, storage loads, and daily use.
Water movement is another major cause. Water entering through the garage door, flowing off the driveway, draining toward the garage, leaking from plumbing, or washing out soils near the slab edge can remove support beneath the floor.
In some cases, the driveway and garage floor are both affected because water or weak soils are present at the transition between the driveway and garage opening.
Read more: How Florida Soil Affects Foundations
Garage Slab Issue vs Foundation Concern
| What You Notice | Possible Garage Slab Issue | Possible Foundation Concern |
| Garage floor has one crack but is level | Shrinkage, age, or slab movement | Lower concern if stable and isolated |
| Garage floor slopes or dips | Slab settlement or poor compaction | Inspect if worsening or paired with wall cracks |
| Hollow-sounding garage floor | Void beneath slab | Should be evaluated |
| Gap under garage slab edge | Soil washout or erosion | Should be evaluated |
| Garage slab sinking near door opening | Washout, driveway transition settlement, or poor support | More concern if block or stucco cracks are nearby |
| Trip hazard between driveway and garage | Driveway or garage slab settlement | Inspect if soil loss is visible |
| Cracks plus sinking | Unsupported slab or soil movement | More concern than cracking alone |
| Water entering garage | Drainage or grading problem | May contribute to slab or foundation movement |
| Stair step cracks in garage block wall | Foundation or wall movement | Higher concern |
| Gaps around garage door frame | Frame movement, slab movement, or foundation movement | Should be inspected if widening |
This table is a guide, not a diagnosis. A garage slab can settle independently from the foundation. But when slab settlement appears with wall cracks, stair step cracking, gaps, or nearby foundation warning signs, the surrounding structure should be evaluated.
If garage floor settlement appears with stair step cracking, see our guide to block wall cracks.
Read more: Is Stair-Step Cracking in Block Walls a Serious Foundation Issue?
If gaps are forming around nearby frames or trim, see our guide to window and door gaps.
Read more: Gaps Around Windows and Doors: Foundation Problem or Normal Settling?
Checklist: Signs a Sinking Garage Floor Should Be Inspected
A sinking garage floor should be evaluated more closely if you notice:
- The garage floor is sloping, dipping, or settling
- One part of the garage slab is lower than another
- The garage floor sounds hollow when walked on or tapped
- Cracks in the garage floor are widening or spreading
- A gap is visible beneath the slab edge
- Soil is washing out near the garage opening
- Water enters the garage during rain
- Water drains toward the garage or foundation
- The driveway is also sinking near the garage
- A trip hazard has formed between the driveway and garage slab
- Cracks appear in nearby block walls, stucco, or foundation areas
- Stair step cracks appear in the garage wall
- Gaps are forming around the garage door frame
- Interior doors near the garage are sticking
- The same area keeps settling after patching or repair
If several of these signs appear together, the issue may involve more than an isolated garage slab. The garage floor, driveway transition, drainage, foundation walls, and soils around the garage should be evaluated as a system.
Read more: What a Foundation Inspection Looks Like
Why Garage Floors Sink or Crack
Garage floors are exposed to several conditions that can lead to settlement or cracking.
A garage slab may settle because the soil underneath loses support. It may crack because the concrete is spanning over a void, moving unevenly, or responding to stress from poor support below.
| Reason Garage Floors Sink or Crack | What It Can Cause |
| Poor compaction below the slab | The soil may compress and allow the slab to settle |
| Settlement of fill soils | The slab may lose uniform support |
| Water washing soil out from beneath the slab | Voids can form below the garage floor |
| Voids under the concrete | Concrete may sound hollow, crack, dip, or rock |
| Water entering near the garage door | Soil near the garage opening may soften or erode |
| Driveway drainage flowing toward the garage | Water may repeatedly affect the same slab edge |
| Plumbing or utility leaks | Support beneath or near the slab may be washed out |
| Poor concrete thickness or construction | The slab may crack more easily once support is lost |
| Heavy vehicle or storage loads | Weak soils may compress under repeated weight |
| Movement at the driveway-to-garage transition | A trip hazard, dip, or water entry point may form |
| Foundation movement nearby | Slab symptoms may appear with wall cracks, gaps, or sticking doors |
A crack by itself does not always mean the garage floor is sinking. Some cracks are shrinkage cracks or normal slab cracks. But cracks become more concerning when they widen, spread, appear with hollow areas, or develop with sinking, sloping, or uneven concrete.
Read more: How to Tell If Foundation Cracks Are Serious or Cosmetic
Garage Floor Settlement vs Foundation Settlement
A sinking garage floor does not automatically mean the home’s foundation is failing.
In many homes, the garage floor slab is a slab-on-grade surface that can settle independently from the foundation walls or footings. The slab depends on compacted soil beneath it, while the surrounding walls and footings carry structural loads.
Depending on how the home was built, the garage floor may be an interior slab poured inside stem walls or foundation walls. In that case, the garage slab rests on compacted soil inside the foundation area, while the surrounding walls and footings support the structure.
Either the slab, the foundation, or both can move. That is why the full symptom pattern matters.
| More Likely Isolated to the Garage Slab | More Concerning for Foundation Movement |
| Garage floor is sinking or hollow, but nearby walls are stable | Stair step cracks appear in the garage block wall |
| Cracks are limited to the garage slab | Cracks appear in nearby stucco, block, or foundation areas |
| No stair step cracks in block walls | Gaps are forming around the garage door frame |
| No widening gaps around the garage door frame | Interior doors near the garage are sticking |
| Interior doors near the garage are not sticking | Floors inside nearby rooms feel uneven |
| Driveway transition is the only nearby exterior concrete issue | Driveway settlement appears near the garage and foundation signs are present |
| No other foundation warning signs around the home | Soil washout appears near the foundation |
| Slab settlement appears stable and isolated | Water drains toward the garage or foundation |
| No related symptoms are appearing elsewhere | Multiple exterior concrete areas are settling near the home |
The goal is not to assume the worst. The goal is to determine whether the garage slab is settling independently or whether the same soil, water, or structural movement is affecting nearby foundation areas.
Read more: Foundation Problems in Florida: The Complete Homeowner Guide
How Water and Soil Washout Affect Garage Slabs
Water is one of the most common reasons garage floors sink or lose support.
| Water Source | How It Can Affect the Garage Slab |
| Rain blowing or flowing under the garage door | Can soften soils near the slab edge or door opening |
| Driveway runoff draining toward the garage | Can repeatedly wash out soils at the driveway-to-garage transition |
| Poor grading around the garage | Can send water toward the slab or foundation |
| Downspouts discharging near the garage | Can concentrate water near the garage wall or slab edge |
| Plumbing or water line leaks beneath or near the slab | Can create voids or weaken soils below the garage floor |
| Irrigation leaks near the garage | Can soften or erode nearby soils |
| Water collecting at the driveway-to-garage transition | Can worsen trip hazards, voids, or settlement |
| Soil erosion along the slab edge or stem wall | Can reduce edge support |
| Water draining toward the foundation | May contribute to broader soil movement near the home |
When water moves beneath the garage slab, it can soften soils, wash out fines, create voids, or allow loose fill to settle. Over time, the slab may sound hollow, crack, dip, or form a trip hazard.
Water entering the garage during rain should not be ignored. Even if the visible issue seems minor, repeated water movement can continue weakening soils beneath the slab or near the foundation.
If water is causing the problem, the water source should be corrected before or along with slab lifting, void filling, or soil stabilization.
Read more: Drainage Problems and Foundation Settlement in Florida
Garage Floor Sinking Near the Door or Driveway
Garage floor settlement often shows up near the garage door opening or where the driveway meets the garage.
This area is vulnerable because it is exposed to water, vehicle loads, driveway runoff, and repeated movement across the transition. If the driveway is also settling near the garage, both slabs may be reacting to the same weak soil, washout, or poor compaction.
| Sign at the Driveway-to-Garage Transition | What It May Indicate |
| Trip hazard between the driveway and garage slab | Driveway settlement, garage slab settlement, or both |
| Bump or dip where the driveway meets the garage | Slab movement at the transition |
| Water entering the garage | Poor drainage, grading issue, or uneven transition |
| Garage door does not seal evenly at the bottom | Slab or frame movement, or uneven garage opening |
| Soil missing along the slab edge | Soil washout or erosion |
| Cracks near the garage opening | Unsupported concrete or transition movement |
| Hollow-sounding concrete near the garage door | Void beneath the slab |
| Driveway settlement close to the garage | Shared soil support issue at the transition |
This type of settlement may be isolated to the slab or driveway. But if nearby block walls are cracking, the garage door frame is separating, or foundation signs are present, the surrounding structure should also be evaluated.
Read more: Why Is My Driveway Sinking in Florida?
Hollow-Sounding Garage Floor or Voids Beneath the Slab
A hollow-sounding garage floor can be a sign of a void beneath the slab.
A void is an empty space where soil or base material used to support the concrete. The slab may still be in place, but part of it may be spanning over missing support.
Signs of voids beneath a garage slab may include:
- Hollow sound when the floor is tapped or walked on
- A slab section that rocks or moves
- Visible gap beneath the slab edge
- Cracks that form over hollow areas
- Garage floor dipping or settling
- Soil washout near the garage opening
- Water entering or draining beneath the slab
- Driveway or walkway settlement nearby
A hollow sound by itself does not always mean an emergency. But hollow concrete paired with cracking, sinking, water intrusion, or visible gaps should be evaluated before the slab continues to move.
Read more: Voids Under Concrete Slabs: What Causes Them and How to Fix Them
Repair Options for a Sinking Garage Floor
The right repair depends on whether the issue is caused by voids, weak soils, water movement, slab settlement, or foundation movement.
| If the Cause Is… | The Repair May Include… |
| Water entering the garage or washing out soils | Drainage correction before or along with slab repair |
| Plumbing or water line leak | Leak detection and repair before lifting or stabilization |
| Voids beneath the garage slab | Structural polyurethane slab injections or void filling |
| Settled but repairable garage slab | Expanding polyurethane foam garage slab lifting |
| Shallow weak or loose soils beneath the garage slab | Polyurethane soil stabilization |
| Garage slab too broken, thin, deteriorated, or unsuitable for lifting | Concrete replacement may be better |
| Perimeter foundation movement | Foundation repair with push piers, helical piers, or drilled piers |
| Garage slab voids plus foundation settlement | Combined repair using piers and structural polyurethane foam |
If water is entering the garage or washing out soils, drainage correction may be needed before or along with slab repair.
If plumbing or water line leaks are suspected, leak detection and repair should be completed before lifting or stabilization.
If voids are present beneath the garage slab and the concrete is still in repairable condition, structural polyurethane slab injections may be used to fill voids and help restore support below the concrete.
If the slab has settled and is still suitable for repair, expanding polyurethane foam garage slab lifting may be used to raise and support the slab.
If shallow soils beneath the garage slab are weak or loose, polyurethane soil stabilization may be recommended to improve soil support and reduce continued settlement.
If the garage slab is too broken, thin, deteriorated, or not suitable for lifting, concrete replacement may be the better option.
If perimeter foundation movement is present, foundation repair with push piers, helical piers, or drilled piers may be needed.
If both garage slab voids and foundation settlement are present, a combined repair may be recommended. For example, piers may be used to stabilize or lift the foundation area, while structural polyurethane foam is used to fill voids beneath the garage slab.
The best repair is not always the largest repair. The best repair is the one that solves the actual cause of the garage floor settlement.
For garage slab lifting and void filling, see our concrete lifting service page.
Read more: Concrete Lifting
If shallow weak soils are part of the problem, see our polyurethane soil stabilization service page.
Read more: Polyurethane Soil Stabilization
If foundation movement is present, see our foundation repair service page.
Read more: Foundation Repair
Polyurethane Garage Slab Lifting vs Mudjacking
Some homeowners search for garage floor mudjacking, slab jacking, or concrete raising when they notice sinking or uneven concrete. Mudjacking typically uses a cement-based slurry pumped beneath the slab to raise it.
Helicon uses polyurethane foam concrete lifting because it is often a better fit for Florida garage slab settlement and void filling.
| Polyurethane Garage Slab Lifting | Mudjacking |
| Lightweight | Heavier cement-based slurry |
| Fast-curing | Usually slower to cure |
| Less invasive | More invasive in many cases |
| Installed through small injection holes | Usually requires larger holes |
| Useful for filling voids beneath slabs | Primarily lifts with heavier fill material |
| Effective for lifting many settled garage slabs | Can lift some settled slabs but adds more weight |
| Less likely to add heavy weight to already weak soils | Adds significant weight beneath the concrete |
| Suitable for many garage floors, driveways, sidewalks, patios, pool decks, and slab support areas | May not be ideal when soil support is already poor |
Mudjacking can add significant weight beneath the concrete. If the soil below the garage slab is already weak, loose, wet, or poorly compacted, adding heavy material may not be ideal.
Polyurethane foam expands beneath the slab, fills voids, and helps support or lift the concrete without adding the same heavy load to the soil below.
Read more: Polyurethane Concrete Lifting vs Mudjacking
What Homeowners Should Not Do
The biggest mistake homeowners make is patching or resurfacing the garage floor without fixing voids, soil, or water issues.
A surface repair may improve appearance temporarily, but it will not fill voids beneath the slab, stabilize weak soils, correct drainage, stop water intrusion, or fix foundation movement.
Homeowners should avoid:
- Patching or resurfacing the garage floor without fixing voids, soil, or water issues
- Ignoring water entering the garage
- Assuming garage floor settlement automatically means foundation failure
- Assuming it is only cosmetic cracking
- Replacing the garage slab without correcting soil support or drainage
- Ignoring driveway settlement at the garage transition
- Waiting until the slab cracks, drops, or creates a trip hazard
The right first step is to understand why the garage floor is sinking. Once the cause is known, the repair can be matched to the actual problem.
Read more: Can I Wait to Fix Foundation Issues or Will It Get Worse?
How Helicon Evaluates a Sinking Garage Floor
When Helicon evaluates a sinking garage floor, the inspection looks beyond the visible crack, dip, or slope. The goal is to determine whether the issue is isolated garage slab settlement, voids beneath the slab, poor compaction, water washout, plumbing leaks, driveway transition settlement, or related foundation movement.
A proper evaluation may include:
- Looking at where the garage floor is sinking, sloping, or dipping
- Checking whether one part of the slab is lower than another
- Listening for hollow-sounding concrete
- Looking for cracks, widening cracks, or settlement patterns
- Looking for visible gaps beneath slab edges
- Checking for soil washout near the garage opening
- Reviewing whether water enters the garage during rain
- Reviewing driveway drainage and water movement
- Looking at the driveway-to-garage transition
- Checking whether the driveway is also sinking near the garage
- Looking for trip hazards between the driveway and garage slab
- Checking nearby block walls, stucco, and foundation areas for cracks
- Looking for stair step cracks in garage walls
- Checking for gaps around the garage door frame
- Asking about plumbing leaks, water line leaks, or prior water issues
- Reviewing nearby exterior concrete settlement
- Using a soil probe near structural areas where appropriate
The inspection should answer three main questions:
- Why is the garage floor sinking?
- Is the issue isolated to the garage slab?
- Are the surrounding foundation walls, driveway transition, or nearby soils also involved?
Read more: What a Foundation Inspection Looks Like
How Much Does Garage Floor Lifting or Repair Cost?
The cost depends on the size of the garage slab area, how much lifting is needed, whether voids are present, access, soil conditions, drainage issues, leak conditions, slab condition, and whether foundation movement is involved.
| Repair Type | Typical Cost Range | When It Applies |
| Garage floor inspection | Free when part of a Helicon evaluation | Garage floor is sinking, hollow, cracked, sloped, or uneven |
| Garage slab lifting or support | Around $2,000 to $6,000 | Settled but repairable garage slabs |
| Structural polyurethane void filling beneath garage slab | Around $1,500 to $5,000 | Voids beneath the garage slab need support restored |
| Garage slab polyurethane soil stabilization | Around $2,000 to $6,000 | Weak shallow soils beneath or near the garage slab |
| Drainage correction | Contractor-specific | Water is entering the garage or washing out soils |
| Leak detection or plumbing repair | Contractor-specific | Plumbing or water line leaks may be contributing |
| Concrete replacement | Contractor-specific | Slab is too cracked, thin, deteriorated, or unsuitable for lifting |
| Foundation pier repairs if related | Project-specific, around $10,000 to $60,000 depending on severity | Foundation movement is also present |
*These are typical Florida pricing examples based on published industry resources and contractor pricing guides. They are intended for educational purposes only and are not Helicon’s pricing. Every home is different, and a professional inspection is the only way to determine the appropriate repair and provide an accurate quote.
That does not mean slab lifting is always the right answer. If the garage floor is too cracked, thin, deteriorated, or unsupported, replacement may be needed. If water is still washing out the soils, the water source should be corrected. If foundation warning signs are present, foundation repair may need to be evaluated.
The cost should be based on the cause and condition, not just the visible crack or dip in the garage floor.
Read more: How Much Does Concrete Lifting Cost in Florida
When to Schedule an Inspection
You should schedule an inspection if your garage floor is sinking, sloping, cracking, sounding hollow, or showing signs of water intrusion or soil washout.
Call an expert if you notice:
- The garage floor is sloping, dipping, or settling
- One part of the garage slab is lower than another
- Hollow-sounding concrete
- Cracks widening or spreading
- A visible gap beneath the slab edge
- Soil washing out near the garage opening
- Water entering the garage during rain
- Water draining toward the garage or foundation
- Driveway settlement near the garage
- A trip hazard between the driveway and garage slab
- Cracks in nearby block walls, stucco, or foundation areas
- Stair step cracks in the garage wall
- Gaps around the garage door frame
- Interior doors near the garage sticking
- The same area keeps settling after patching or repair
Not sure if the problem is isolated to the garage slab or connected to the foundation? Helicon can evaluate the garage floor, driveway transition, drainage, voids, soil support, nearby foundation warning signs, and structural conditions when needed.
Why Florida Homeowners Trust Helicon
Helicon has been helping Florida homeowners solve concrete lifting, soil stabilization, foundation repair, seawall erosion repair, sinkhole repair, pool deck settlement, sidewalk settlement, driveway settlement, void filling, garage slab settlement, and slab support problems since 2004.
As a family-owned Florida company, Helicon understands the soil conditions, water movement, drainage issues, construction practices, and settlement patterns that affect garage floors, driveways, sidewalks, patios, pool decks, lanais, slabs, foundations, and waterfront properties across Tampa Bay, Orlando, Southwest Florida, and surrounding areas.
We are not there to tell every homeowner that every sinking garage floor means foundation failure. We are there to determine why the garage floor is sinking and whether the issue is isolated, soil-related, water-related, slab-related, or connected to nearby foundation movement.
Sometimes the issue is poor compaction. Sometimes it is water washout. Sometimes it is a void beneath the slab. Sometimes driveway drainage is involved. Sometimes a plumbing leak needs to be addressed. Sometimes the foundation also needs to be evaluated.
The goal is always the same: identify the cause, protect the property, and recommend the least invasive repair that provides a long-term solution.
Read more: About Helicon
Schedule a Free Garage Floor Inspection
If your garage floor is sinking, dipping, cracking, hollow, or creating a trip hazard, Helicon can help.
Our team can evaluate the garage slab, visible settlement, hollow areas, soil washout, drainage, driveway transition, leak concerns, and nearby foundation warning signs when needed to help determine whether the problem can be lifted, filled, stabilized, or needs another repair approach.
Schedule a free garage floor inspection with Helicon to find out what is causing the issue and what should be done next.
Read more: Concrete Lifting
FAQ
Why is my garage floor sinking?
A garage floor may sink when soil beneath the slab becomes loose, weak, poorly compacted, washed out, or unsupported. Common causes include poor soil compaction, water intrusion, plumbing leaks, drainage problems, voids beneath the slab, driveway transition settlement, and settlement of fill soils.
Is a sinking garage floor a foundation problem?
Not always. Many garage floor slabs can settle independently from the foundation walls or footings. However, if the sinking garage floor appears with stair step cracks, wall cracks, gaps around the garage door, sticking doors, uneven nearby floors, or exterior settlement, the foundation should be evaluated.
Can a sinking garage floor be lifted?
Yes, many sinking garage floors can be lifted if the concrete is still in repairable condition. Expanding polyurethane foam garage slab lifting can raise settled slabs, fill voids, and help restore support beneath the concrete.
What causes hollow spots under a garage floor?
Hollow spots usually form when soil or base material beneath the slab washes out, settles, or was not compacted properly. Water intrusion, drainage problems, plumbing leaks, and poor compaction can all create voids beneath a garage slab.
Why is water entering my garage?
Water may enter the garage because the driveway slopes toward the garage, the garage door does not seal properly, grading directs water toward the opening, or drainage is poor. If water continues moving beneath the slab, it may contribute to soil washout and garage floor settlement.
Is polyurethane better than mudjacking for garage floors?
Polyurethane foam is often preferred because it is lightweight, fast-curing, less invasive, and expands to fill voids without adding heavy material to already weak or wet soils. Mudjacking uses a heavier cement-based slurry, which may not be ideal below a garage slab with weak support.
Should I replace my sinking garage floor?
Replacement may be needed if the garage slab is too cracked, thin, deteriorated, or not suitable for lifting. But if the slab is still in good enough condition, polyurethane concrete lifting, void filling, or soil stabilization may correct the problem without full replacement.
How much does garage floor lifting cost?
Garage slab lifting or support typically costs $2,000 to $6,000 or more depending on slab area, access, voids, and lift needed. Structural polyurethane void filling beneath a garage slab may range from $1,500 to $5,000 or more depending on void size and injection area.
What happens if I ignore a sinking garage floor?
The floor may continue to sink, crack, sound hollow, form trip hazards, or allow water to enter the garage. If the cause is soil washout, drainage, or a leak, the affected area may continue to grow until the cause is corrected.
When should I call Helicon about a sinking garage floor?
Call Helicon if your garage floor is sinking, dipping, cracking, sounding hollow, showing soil washout, allowing water into the garage, creating a trip hazard, or appearing with nearby foundation warning signs.
