Void filling and lifting
Material is injected beneath the slab to fill the void and raise the concrete back toward its original elevation.
Settled concrete · Greater Burlington
Concrete leveling for sunken slabs, walks and garage floors.
A sunken slab is a symptom. Concrete settles because the material beneath it moved, washed out or was never compacted—so lifting the slab without asking why it dropped tends to buy a few seasons rather than a repair.
Common reasons homeowners call
Problems this service can fix.
A walkway or patio that now pitches toward the house
A trip hazard where two slabs meet
A garage floor that has dropped away from the apron
Steps pulling away from an entry
A basement floor section lower than the rest
Gaps under a slab visible at the edge
Pooling water where the surface used to drain away
Repairs and systems
Work we provide.
Depending on the property, the project may use one of these repairs or combine several into a complete system.
Drainage correction
Downspouts, surface grade or a failing drain that washed out the base are corrected so the support material is not removed again.
Joint and crack sealing
Open joints that let surface water reach the sub-base are sealed after lifting so the cycle does not restart.
Slab replacement
Where concrete is broken beyond lifting, or the base needs rebuilding, replacement is the more durable option.
Interior slab repair
Settled or cracked basement floor sections are evaluated for water, fill and structural causes before a cosmetic repair.
Foundation evaluation
Settlement next to the foundation is assessed to determine whether the slab alone moved or the structure is involved.
At your property
How we plan the repair.
We look at the affected area, the foundation, exterior conditions, existing equipment and access so the estimate covers the complete job.
Request an inspection- 01
How much the slab has dropped and in what direction
- 02
Whether the movement is ongoing or historic
- 03
What is beneath the slab and how it was backfilled
- 04
Roof runoff, downspouts and drains near the settled area
- 05
Whether the adjacent foundation shows related movement
- 06
Utilities beneath the slab that could be affected
Your estimate
What is included in the plan.
Find the washout
Concrete rarely settles without a reason. A downspout, a leaking drain or uncompacted backfill is usually still there after the lift.
Lift is not guaranteed to be perfect
Reaching approximately level is realistic. Returning a broken, spalled slab to a like-new surface generally is not.
Near-foundation settlement
A slab dropping right beside the house may reflect backfill settlement or something structural. Those are different projects with different prices.
Frost
Repeated freeze-thaw in Vermont moves poorly drained material. Drainage correction is part of making the repair last.
Already have an estimate?
Compare the complete concrete leveling & slab repair scope.
If Northern Basement Systems, Twin State Basements, 802 Waterproofing or another company has already inspected the property, request a separate estimate and compare quantities, materials, restoration, maintenance, warranty and price.
Common questions
Concrete Leveling & Slab Repair FAQs
These answers cover the questions homeowners ask most often. Your inspection and written estimate will address the conditions at your home.
Why did my walkway sink but the house did not?
Exterior flatwork usually sits on backfill rather than undisturbed soil or a footing. That fill settles, and water moving through it can carry fines away. The house sits on a footing below frost depth, which is why the two can move independently.
Is concrete leveling permanent?
It lasts as long as the support beneath the slab does. If the cause was a downspout discharging under the slab or a failed drain, and that is corrected, a lift can hold for years. If the cause is left in place, the slab settles again.
Should a sunken basement floor worry me?
It deserves a look. A basement slab is usually not structural, so a dropped section often reflects fill or water below rather than a failing foundation. But settlement combined with wall cracks or movement needs a structural evaluation.
Request local service
Schedule concrete leveling & slab repair service in Greater Burlington.
Tell us what is happening at the property and when you would like it inspected.