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Concrete Slab Contractors in Colorado
Slabs and foundations built for the building that goes on them. Get a free quote.
Parker, Denver, the Front Range and every town within 100 miles
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Shop Slabs & Foundations
Shop Slabs & Foundations, built by one builder
Everything in a barn, shop or barndominium sits on the slab, and in Colorado the ground under it is rarely simple. Expansive clay and bentonite swell when they get wet and shrink when they dry, frost depth changes from the plains to the foothills, and a slab poured without the building's drawings in hand can leave anchor bolts in the wrong place or a door opening off by a few inches. Getting it right means digging out bad soil, building a compacted base, setting footings below frost and laying out the slab to the exact building that goes on it.
Colorado Barn Builders is the site for Quality Garage Builders, a licensed and insured general contractor in Parker. We pour slabs and foundations for barns, shops, garages and barndominiums within 100 miles, from the Denver metro and Castle Rock to Elizabeth, Colorado Springs, Greeley and the mountain towns along I-70 and US 285. On our own buildings, one builder handles the design, permit, site prep, forms, rebar, the pour and the building itself. If you bought a steel building elsewhere and need the foundation done right, we form and pour to its anchor bolt plan.
What's included
What goes into our shop slabs & foundations
- 01
Notched-edge slabs for metal buildings
A slab with a raised perimeter and a notch at the edge, so the wall panels drop below the floor line and rain and snowmelt run out instead of under the walls.
- 02
Pole barn and post-frame floors
Floors poured inside a post-frame building after the posts and skirt board are set, or a concrete foundation that the posts bolt to on brackets.
- 03
Soil prep and frost footings
Over-excavation and a compacted base where expansive clay calls for it, perimeter footings to your county's frost depth and grading that carries water away from the slab.
- 04
Vapor barrier, mesh and rebar
A vapor barrier under the concrete keeps ground moisture out of the building, and mesh or rebar placed to the design holds the slab together.
- 05
In-floor radiant heat prep
Radiant heat tubing laid out in loops and tied down before the pour, the way we did under a tall steel RV garage, so the floor can heat the building.
- 06
Anchor bolts, drains and plumbing
Anchor bolts set to the building's engineered drawings, floor and trench drains where you'll wash trucks or equipment, and plumbing stubbed up for a barndominium kitchen or bath before the concrete goes in.
Real work · not stock photos
Our concrete slab work
Photos from our own jobs.
Our crew's work
More photos from our concrete slab jobs
Smaller photos from the job site, shown at their actual size.
How it works
How a concrete slab job works
- 1
Free quote and site visit
We look at the site, the soil, the grade and drainage, and the building that will sit on the slab, including its drawings if you already have them. Then you get a free quote.
- 2
Design and permit
We design the slab and footings for your building and soil, with the anchor bolts, drains, plumbing and radiant tubing laid out, and handle the permit and inspections with your building department.
- 3
Dig, base and forms
Our crew excavates, over-excavates where the soil needs it, compacts the base and digs the footings. Then we set the forms, vapor barrier, rebar or mesh, tubing and plumbing and have them inspected.
- 4
Pour, finish and cure
We pour and finish the slab and protect it from freezing or drying out too fast while it cures, so it's ready for the building. You get weekly progress updates the whole way.
Customer reviews
What our customers say
“Great communication! Fair Price and took care of everything as it came up.”
Travis S.
Garage building · HomeAdvisor review
“Mike is a true professional in every way. Versatile, reliable, well skilled, and extremely knowledgeable. Easy to work with and a hard worker. His pricing is reasonable and his estimates for his work were spot on. I trusted him completely, as I am an absentee owner and could not be on site to oversee progress. He gave me updates and photos. A great find. Would recommend without any reservation. Hire him if u want it done right and on time.”
Jim S.
Work for an absentee owner · HomeAdvisor review
“Mike and crew was simply amazing. He always made sure I was satisfied, had good communication, and did a great job. Good prices and services, I can’t recommend home enough. This was a big job and he came through, Thank you!”
Chad T.
A big job · HomeAdvisor review
“Mike was great at communicating with me and was incredibly competitive in his pricing. The work was done quickly and was high quality. I would absolutely recommend his company to anyone needing work done on their houses.”
Lora T.
Home project · HomeAdvisor review
“I am so appreciative of the quality, responsiveness, and value that Mike Fowler and his crew performed on completely remodeling and expanding our kitchen including moving walls. He did it in a timely manner, provided progress updates often and finished the job in record time. We get compliments all the time on the quality of the work and how our kitchen has been completely transformed. He coordinated or did himself all the carpentry, electrical, appliance installation, cabinets, and countertop installation after we approved the plan he drew out for us. I also used him to add a shower to my laundry room, cut down a huge tree in my yard, and put a new face around my fireplace. I would highly recommend Mike for ANY remodeling work you are considering for your house. His prices are competitive too”
Rich R.
Kitchen remodel and expansion · HomeAdvisor review
“Mike has done my entire unfinished basement and his work ethics and willingness to work with changing design needs is exceptional. Mike's patience and quality of work is exceptional. His only goal is to ensure that customer is happy and he doesn't hesitate to redo things if customer wanted differently. I was very happy with his work and did recommend to a friend who is doing his complete basement. he is very affordable versus some of the crazy quotes we got.”
Damodara M.
Basement finish · HomeAdvisor review
Local pages
Shop Slabs & Foundations by town
Find your town for local details and everything we build there.
- Parker, CO
- Franktown, CO
- Castle Rock, CO
- Centennial, CO
- Highlands Ranch, CO
- Elizabeth, CO
- Littleton, CO
- Aurora, CO
- Kiowa, CO
- Denver, CO
- Lakewood, CO
- Commerce City, CO
- Monument, CO
- Golden, CO
- Black Forest, CO
- Arvada, CO
- Westminster, CO
- Thornton, CO
- Evergreen, CO
- Brighton, CO
- Peyton, CO
- Broomfield, CO
- Colorado Springs, CO
- Boulder, CO
- Longmont, CO
- Greeley, CO
- Loveland, CO
- Windsor, CO
- Fort Morgan, CO
- Fort Collins, CO
- Pueblo West, CO
- Pueblo, CO
Also serving The Pinery, Stepping Stone, Sierra Ridge, Stonegate, Meridian Village, Grand View Estates, Castle Pines, Meridian, Lone Tree, Castle Pines Village, Dove Valley, Foxfield and more →
Questions
Shop Slabs & Foundations FAQs
How do Colorado soils affect a concrete slab?
More than almost anything else. Expansive clay and bentonite under much of the Front Range swell when wet and shrink when dry, which can crack and lift a slab poured on them as they are. The fix is in the prep: over-excavate bad soil where needed, replace it with a compacted base, set the footings below your county's frost depth and grade the site so water runs away from the slab. Some building departments ask for a soils report first, and we design the slab around what it finds.
How much does a concrete slab for a shop or barn cost?
It depends on the size and thickness, the soil and what goes into the slab. Over-excavation on expansive clay, deeper footings in the high country, a notched edge, radiant tubing, drains and plumbing all add work, and a site that needs a lot of dirt work costs more to prep than a flat, dry one. We look at the site and the building plans, then give you a free quote.
Do I need a permit for a slab?
Usually yes when the slab is the foundation for a building, and it normally goes under the building's permit rather than a separate one. The building department may want engineered footing and slab details, a soils report on expansive ground, and inspections of the footings, rebar and any under-slab plumbing before the pour. We handle the permit and schedule the inspections so nothing gets poured before it's signed off.
Can you pour a slab for a metal building I already bought?
Yes. We form and pour the foundation to your building's anchor bolt plan and engineered drawings, so the bolts, the notched edge and the door openings land exactly where the frame needs them. Send the drawings with your quote request and we'll design the footings and slab around them and your soil. We can put the building up on it too.
Should I put radiant heat in my shop slab?
If you might ever heat the building, lay the tubing now, because it can't go in once the concrete is poured. In-floor heat keeps a shop, garage or barndominium floor warm, dries off snowmelt from trucks quickly and suits tall buildings where forced hot air would rise to the roof. The tubing goes in before the pour, ideally over insulation board so the heat goes up into the room instead of down into the ground.
Related
Other buildings we put up
Metal Buildings
Steel buildings sold and installed, engineered for local snow and wind.
See metal buildings
Barndominiums
Turnkey barndominiums from design to move-in.
See barndominiums
Metal Shops & Workshops
Heated metal shops and workshops with insulation, power and in-floor heat.
See metal shops & workshops
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