Slab foundation building in Rock Springs WY - a level floor on firm, packed ground
Planning a new house, garage or shop on Rock Springs ground? We check the soil first, so the floor you build on stays level.

- Licensed and fully insured.
- Free in-person estimates.
- Replies within 1 business day.
Can I keep the old slab or start over?
If the old slab is level and its cracks have stopped growing, a repair usually holds. If the ground under it gave out, a patch just moves with the dirt.
A repair is enough when:
- Cracks are thin and holding steady
- The floor is still level
- Edges aren't crumbling
- Water drains away from the slab
- The building above isn't changing
A new slab makes sense when:
- The floor has sunk or tilted
- Cracks keep getting wider
- Water comes up through the floor
- The base underneath washed out
- You're putting up a new building
How your slab gets built
Call or send the form
Call (307) 209-5832 or send the form with the lot address, what you're building and how big it is, so I know what I'm walking into.
A visit on the calendar
I walk the lot
I come out myself, look at the ground and talk through the building with you, then put the estimate in writing so you can see what's in it.
A written estimate
Soil and digging planned
We get the soil checked and the digging planned before we order concrete, and if the job needs a permit, we take care of it before we start.
A plan for the ground
Dig, form and set steel
Our crew digs the footings and sets the forms and rebar, the steel that holds a slab together, and I'm on site checking it all before the truck shows up.
Everything ready to pour
Pour, finish and clean up
Once the concrete is in, it sets the schedule for finishing and protecting it, not us. We clean up the site when the slab is done.
A finished slab
What slab foundation building includes
Stripping the topsoil
We take the topsoil off so the slab rests on firm soil or packed fill, not dirt that settles.
Soil check first
We get the soil looked at before footings are dug or concrete is ordered, because that's what the foundation is designed from.
Footings dug to depth
We dig the footings as deep as the frost and your soil call for, then clean the trenches out before forming.
Base and drainage
We pack the subgrade, the ground the slab sits on, and grade it so water runs away from the building.
Forms and steel
We set the forms to your building's lines and place the steel where the plan calls for it.
Pour, finish and cure
We finish the concrete when it's ready and keep it protected while it cures, the slow hardening that gives it its strength.
What decides the cost of a slab foundation?
Most of the cost sits in the ground. How much topsoil comes off, how deep the footings go, whether fill has to be hauled in and packed, and what the soil check recommends all change how much digging there is, and digging is a big share of the work. If the plan calls for walls below grade instead of a slab on the ground, that's foundation installation, a different job.
Above ground, the size of the building, the thickness of the slab and the steel inside it set how much material goes in. A slab that has to carry trucks or equipment gets built heavier, the way we'd build a concrete parking lot, and cold weather adds protection work. When a budget gets tight, people want to trim the base first because nobody sees it once the floor is down. I'd cut a finish before I'd cut the base, because a nice floor on bad ground still cracks.
Why Rock Springs owners hire us for slab foundations
I learned prep on a restaurant line before a friend put a trowel in my hand, and I started our business in 2017 on that same habit. I walk every job myself, and our crew does the work with me on site. I'd rather move a pour date than rush into bad weather, and we try to set the slab early enough that the building can be closed in before the cold.
We're based in Rock Springs and work in Green River and the cities around it. The state geological survey says some ground layers in Wyoming hold clay, or break down into it, that swells and shrinks as moisture changes, and buildings set on it without the right steps can crack, collapse or fail. That's why we treat the soil as the plan. Call (307) 209-5832 when you're ready to talk through your lot.
- The owner on every estimate and pour
- Licensed and fully insured
- Satisfaction guaranteed on every job
Get a written estimate for your slab foundation
Send the lot address, the building's size and use, and any soil report you have. We reply within one business day to set up your free on-site estimate, with no obligation, and I'll walk the lot with you.
(307) 209-5832Slab foundation questions we hear
Do I need a soil inspection before pouring a slab foundation in Rock Springs?
Yes, the city requires an open hole soil inspection for all new residential construction, where a state licensed engineer classifies the soil and recommends a foundation. The city's Building Official can call for a full soils report instead, and the state geological survey strongly recommends a detailed study of the ground for any site. That's why the soil check comes first on our schedule.
How deep do footings have to be in Rock Springs, WY?
The city requires footings to go below the frost line, which it sets at 42 inches below finished grade, unless a foundation investigation recommends a different depth. That depth decides how far our crew digs, so it's one of the bigger things behind the size of the job.
Can a slab foundation be poured in cold weather?
Yes, concrete industry guidance says concrete placed in cold weather still gains the strength and durability it needs when it's properly mixed, placed and protected. That guidance counts it as cold weather once the air drops to 40°F, or is expected to, while the new concrete is being protected. One builder's guide advises finishing the foundation and getting the building enclosed and heated before freezing weather, so if you're starting late in the year, call early.
How do I build a slab foundation on a mine subsidence lot in Rock Springs?
You build it to the University of Wyoming specifications the city requires for foundations on properties identified as subsidence-prone, which are written for homes facing ground movement from mining. Tell me at the estimate if you think your lot is one of them, so the plan and the price account for it. Wyoming's Department of Environmental Quality also offers homeowner's subsidence insurance in communities affected by current or past mining, and it's worth looking into.
How much does a slab foundation cost in Rock Springs?
The price comes from your lot and your building, so I give you a figure in writing after I walk the site with you. Soil, footing depth, the building's size and the time of year move it most, as covered above.
What causes a new concrete slab to crack?
Poor timing is a common cause, because concrete guidance says the timing of finishing, jointing and curing is critical, and getting it wrong can lead to cracking, dusting, scaling, high or low spots and poor drainage. Ground that settles or swells does the rest. Ask any crew you're considering how they plan those steps, and I'll walk you through ours.
Where we work around Rock Springs
We're based in Rock Springs and work in Green River and the cities around it. Pick your area below, or call (307) 209-5832 if yours isn't listed.

Start your slab quote with Rock Springs Concrete
Call (307) 209-5832 or send the form with your building plans, so the walk-through starts from your layout.
