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A settled driveway or sunken patio gets worse every winter. We lift concrete slabs in Missoula back to level quickly, without tearing out and replacing them.
Foundation raising in Missoula lifts a sunken concrete slab back to its original level by pumping material into the void that formed underneath it - most residential jobs on a driveway, patio, or garage floor take two to four hours from start to finish, and most slabs are usable again the same day.
Missoula homeowners tend to notice settling in spring, after the ground has gone through its worst freeze-thaw cycle of the year. The Clark Fork valley soils shift and compress more readily than denser soils, and every freeze-thaw cycle can widen the void under a slab a little further. Waiting another winter almost always means a larger job - or a slab that has cracked too badly to lift. If you are also dealing with cracks or breaks in your concrete and are weighing a full replacement, our slab foundation building service covers that option.
Call (406) 317-4988 - we respond within 1 business day, visit your site before quoting, and give you a written price before any drilling starts.
These are the signals Missoula homeowners can spot themselves - and each one tends to get worse after a hard winter.
Stand at one end of your driveway, patio, or garage floor and look down the length of it. If one section sits noticeably higher or lower than the next - even an inch or two - that is a classic sign of settling. In Missoula, this often becomes obvious in May or June after the spring thaw has finished moving the soil.
If standing water collects against your house or in low spots on your slab after rain or snowmelt, the concrete has likely dropped enough to reverse its drainage slope. This is worth addressing quickly in Missoula, where spring snowmelt can be substantial. Water sitting against a foundation accelerates the very settling that caused the problem.
Walk around the perimeter where your driveway, patio, or garage floor meets the house. If you can see a gap between the concrete and the foundation wall, the slab has moved away from the structure. This gap lets water in and gets wider every winter as the freeze-thaw cycle works on it.
Walk slowly across your garage floor or patio and pay attention to how it feels. If the concrete flexes slightly under your weight, or if tapping it with your heel produces a hollow sound in certain spots, there is likely a void forming underneath. That void will only grow until it is filled.
We offer both traditional mudjacking and foam lifting, and we will tell you which method makes more sense for your specific slab rather than defaulting to whichever costs more. Mudjacking pumps a cement-and-soil slurry under the concrete to fill the void and lift the slab - it is well-suited for large, heavy slabs like driveways where the added weight does not cause problems. Foam lifting uses a lightweight expanding material that sets in minutes, which is a better fit when the soil underneath is soft or prone to continued shifting. For homeowners who are weighing whether to lift or replace, we are upfront about when the slab is too far gone for lifting to hold. If cutting is needed before or after the lift for drainage or access, concrete cutting can be scheduled alongside the raising work.
Every job includes a site assessment before any drilling, a written quote, patch work on all drill holes flush with the surface, and a walkthrough with you before we leave. We also give you a realistic conversation about the underlying conditions - if your slab sits in a part of Missoula where soil movement is ongoing, we would rather tell you that than take your money for a repair that will need to be repeated in three years. When the slab is cracked badly enough that lifting will not hold, slab foundation building is the right next step.
Best for large, heavy slabs like driveways and garage floors where the added material weight is not an issue.
Right for patios and steps where fast cure time matters and the soil underneath is soft or still shifting.
For garage slabs that have dropped at the door or along a wall, causing water to flow in rather than out.
For individual driveway sections that have settled relative to adjacent sections, creating a trip hazard or curb gap.
For outdoor slabs that have tilted or settled, creating uneven surfaces that hold water or create a safety hazard.
For front or back steps that have dropped away from the house, leaving a gap or a potentially dangerous height change.
Missoula's mountain valley location means significant temperature swings from November through March, and sometimes well into April. Every freeze-thaw cycle pushes the soil beneath a slab - and over years, that movement creates voids. The Clark Fork floodplain runs through a significant portion of Missoula's residential neighborhoods, and the alluvial soils in those areas - the sandy, silty deposits left by the river - shift and compress more readily than denser soils. Neighborhoods in the Rattlesnake, Riverfront corridor, and lower Grant Creek areas are particularly prone to slab settling. Missoula also has a large share of homes built in the 1940s through 1970s, where slabs were placed on minimally prepared soil by today's standards - decades of settling have had plenty of time to open voids under those older pours.
We serve homeowners across the region, including Anaconda and Deer Lodge, where the same freeze-thaw conditions create the same settling patterns. Missoula's working season runs roughly from late April through October - if you noticed a problem this spring, now is the time to call before the summer schedule fills up.
Describe what you are seeing - a tilted section, a gap, water pooling - and we will schedule a free on-site visit. We do not quote over the phone without seeing the slab. We respond within 1 business day.
We walk the slab with you, probe for voids, check drainage, and tell you honestly whether raising is the right fix. You get a written price before anyone drills. No scope changes after work starts.
The crew drills small holes and pumps material until the slab rises to the correct level. This is the loudest part of the job - usually one to two hours for a standard residential slab. You can watch the slab move.
Every drill hole is filled and patched flush before we leave. We walk the finished job with you to confirm the level looks right. Foam slabs are walkable within 30 minutes; mudjacking slabs typically need a few hours.
We visit your site before quoting - no phone guesses, no surprises on the invoice.
(406) 317-4988One of the biggest fears with slab work is getting a low quote and watching the number climb once work begins. We assess the full scope on-site, give you a written price, and stick to it. No scope changes, no surprise charges when the invoice arrives.
Some contractors lift slabs that should be replaced, and homeowners end up paying twice. We tell you upfront if your slab has too much cracking or structural damage for a lift to be a lasting repair. That honest answer protects your budget.
Montana requires contractors to hold a valid state registration, and you can verify ours before we start. Work done by unlicensed contractors can create problems when you sell your home or make an insurance claim. Ask for our number - we provide it without hesitation.
We understand what the Clark Fork alluvial soils do to slabs over time and which Missoula neighborhoods tend to see repeat settling. That local knowledge shapes the honest advice we give about how long results should last in your specific location. The American Concrete Institute sets the standards we follow for material selection and curing practices.
Every job comes with a site visit, a written quote, and honest advice about whether raising or replacement makes more sense for your specific slab. We are here to give you the right answer, not just a quick sale.
Need a drain added or a trench cut before or after your slab is raised? Concrete cutting handles precise openings without tearing out the whole slab.
Learn moreWhen a slab is too cracked or damaged to lift effectively, a new slab pour is the right call - we handle the full replacement from demolition to finished surface.
Learn moreSpring slots fill fast once the ground thaws. Call or request a free estimate today so we can assess your slab before next winter makes the void bigger.