Concrete floor installation in Juneau AK - a slab built for its use and the cold
Who installs concrete floors in Juneau, and what's involved?
Juneau Concrete handles concrete floor installation in Juneau for garages, shops and rooms you'll live in. I come out and look at the space myself. Then our own crew preps the base, sets what goes under the slab, pours and finishes it, and I'm on site for the pour.
A concrete floor is more than the pour. We place the slab, finish the top, cut control joints, which are grooves that give cracks a line we picked, and let it cure, which is the wait while it hardens. After that it can take tile, flooring or a coating. First I ask whether it's a shop or a room you'll live in, because that changes what goes under it.
Floors are made or ruined in the timing on pour day. Finish too early or too late, or cut the joints late, and you get cracks, a dusty top that wears off, flaking and uneven spots. That's why I'm on site for the finishing, not just the pour, and why our own crew does the work. Satisfaction guaranteed.
Juneau sees 56 freeze-thaw cycles in an average year, so frost is what we plan around. The City and Borough of Juneau requires at least 32 inches of frost protection depth, or an equivalent, and wants snow, ice and frost off the forms and the ground thawed or free of standing water before the pour. We plan for that on floors, concrete steps and pool decks across the City and Borough.
What a floor takes
- A base dug out and packed
- Rigid foam under floors you'll live on
- Vapor barrier right against the slab
- Rebar, the steel that holds it together
- Finishing and joints timed on pour day
- Curing that's kept from freezing
What to weigh before booking a concrete floor
What sets the price
Size and use set most of it, because a room you live in needs foam under it that a shop may not. If the budget's tight, cut fancy finish, not the base.
What the timing turns on
Weather, mostly. A floor can go in during the cold months with protection, but your flooring waits until the slab has cured, so season and curing set the schedule.
Frost depth or foam
A frost protected shallow foundation uses foam instead of depth, and a builder's guide says it suits fairly flat sites and can go in with one pour. Whether the city counts it as equal is open.
Concrete floor questions from Juneau
How much does a concrete floor slab cost in Alaska?
A concrete slab installed with excavation, a gravel base, vapor barrier, rebar and a broom finish, a lightly brushed texture for grip, usually costs about $10 to $20 per square foot in Alaska. That's the going rate for that package around the state, not our price. Yours depends on size, whether it needs foam for living space and how easy the site is to reach, and I'll put it in writing after I've seen it.
Does a concrete slab used as living space need insulation in Juneau?
Yes. Alaska housing guidance says a slab that's your main living area should have rigid foam across the entire floor, because the ground here sits near 33°F and foam at the edges alone isn't enough. That foam goes in before the pour, so we plan it from the first visit.
Can you pour a concrete floor in Juneau in the winter?
Yes, as long as there's a plan to keep the slab from freezing. Until new concrete gains early strength, one freeze can damage it, and most mixes get there within 48 hours at 50°F, so we keep the slab protected through that stretch. Below 40 degrees the city's foundation notes call for special precautions, so ask us which ones we'll use on your pour.
What is the best way to keep ground moisture away from flooring on a concrete slab?
Put the vapor barrier, a moisture sheet under the slab, in direct contact with the bottom of the concrete. The concrete floor guide says that placement gives flooring and coatings the most protection, and that ordinary plastic sheeting shouldn't be counted on for the job. If you're putting flooring or a coating on top, ask us where the barrier goes.
How do I keep a new concrete floor from cracking?
Start with a base that's dug out and packed, not raked level, because a slab on loose dirt settles right along with it. Then the joints get cut on time, so the cracks concrete makes land in lines we chose and not across the middle of your shop. The base is the part nobody sees once the floor's in, which is why it's the last thing I'd cut.
Does a concrete contractor in Alaska need a license?
Yes. In Alaska a contractor needs a certificate of registration from the state Department of Commerce, Community, and Economic Development before bidding or working. If the floor is part of a new home, or remodeling worth more than 25% of the house's value, the general contractor also needs a residential endorsement. We're fully licensed and insured.
Concrete floors near you
We're based in Juneau and pour concrete floors across the City and Borough. Pick your area below, or call (907) 560-0628 if yours isn't listed.
Other concrete work
- Concrete driveway building
- Concrete patio construction
- Stamped concrete services
- Concrete sidewalk building
- Garage floor concrete
- Decorative concrete
- Concrete retaining walls
- Concrete pool decks
- Concrete steps construction
- Slab foundation building
- Foundation installation
- Concrete parking lot building
- Concrete footings
- Foundation raising
- Concrete cutting
Get a free estimate on your floor
Send the floor's size, its use and when you'd like to pour. We reply within one business day, and I come out for a free, no-obligation written estimate.