Slab foundation building in Lake Forest CA - a solid, level base for your new home
Building a house or addition on a slab? We pour it to your engineer's design, with the base, joints and cure done right.
Complete Lake Forest Concrete Company is a concrete contractor based in Lake Forest, building slab foundations, driveways, patios and walks for homeowners and small property owners across Orange County. We're known for concrete that drains the way it should and for explaining a job before we price it. On a house slab, that care goes into the parts you'll never see again once it's poured.
- Owner writes every estimate on site
- In business since 2017
- Fully licensed and insured
What goes into building a slab foundation
A slab foundation is one thick pad of concrete on the ground, with your house built on it. Most homeowners who call us about slab foundation building in Lake Forest have an engineer's plans for a new home or addition. If your plans call for footings and a raised floor, that's our foundation installation work. Whoever you hire, check that they're licensed by the state licensing board, which has a class for concrete contractors.
Price moves with the slab's size and thickness, whether the design calls for regular reinforcing or post-tensioning, and how much digging and grading the lot needs. The schedule turns on the engineer's design, any permit and the cure, the days concrete needs to gain strength, which nobody can hurry. I'll go over all of that on site and leave you with an estimate for your own slab.
- Layout and dig-out. We mark the slab from your plans and dig to the depths shown on the engineer's drawings, edges included.
- Vapor barrier. A plastic sheet goes down under the concrete and gets sealed around each pipe, so ground moisture stays out of your floors.
- Rebar or post-tensioning. Rebar is the steel grid that holds a slab together, while post-tensioning uses cables pulled tight after the pour to squeeze it.
- Pour and finish. We place and finish the concrete in one pour, leaving a flat, level surface ready for your framer.
Slabs we build for houses
Most of our slab work goes under living space, from a whole new house to a single added room, plus the garages and backyard units that need the same care underneath.
New home slabs
The full foundation for a new house, built to the engineer's design and the soils report, with every pipe and anchor bolt set before the pour.
Room additions
A new slab tied to your existing foundation the way the engineer details it, set level with the floor you already have so the rooms meet cleanly.
Garage and workshop slabs
Slabs for a detached garage or workshop, with the floor sloped gently toward the door so water from cars and hoses runs out.
Backyard units
Slabs for a guest house or accessory unit, which need the same packed base, moisture barrier and reinforcing as a main house, just on a smaller footprint.
Need something not listed here, like a concrete parking lot for a small commercial property? Call and ask us about it.
Why a slab foundation is worth doing right
A house slab disappears under framing and flooring, and nobody looks at it again. What you notice over time is whether floors sit flat and doors close right, and that comes down to the work underneath.
- A packed baseWe dig out soft dirt and pack the subgrade, the ground under the slab, because a base that's just raked level settles later.
- Water that runs awayWe check where water runs before we form, so the ground around the slab falls away from the house instead of toward it.
- Joints cut on timeControl joints, cuts that tell a slab where to crack, go in early so cracks land where we chose, not just anywhere.
- A slow cureWe keep the slab damp while it cures and gains strength, because concrete left to bake dry in the sun comes out weaker.
How a slab job runs with us
I walk the site with you
I come out, look over your lot and plans with you, and talk through regular reinforcing versus post-tensioning and why one fits better.
An estimate from your plans
You get an estimate built from the engineer's design and the soils report, and I'll point out what could change once the ground is open.
Prep, pour and walk-through
Once you say go, our crew handles the prep, forms, pour and finish, I check the work at the key steps, and we walk the slab together at the end.
Why owners pick us for slab work
I learned on a crew where the boss made me redo forms until they were right, and I still hear him every time I check a grade. We work from your engineer's design and explain each choice before we price it.
The base before the finish
If a budget gets tight, I'd trim the extras on top before I'd skimp on the base, because nobody gets back under a house to fix it.
Our own crew, start to finish
Our own crew does the dig-out, forms, pour and finish, so the people who prepped your base are the ones who pour on it.
You'll know what to ask
I want you to understand your slab well enough to ask good questions, whether you're asking us or anyone else bidding it.
Satisfaction guaranteed
Satisfaction guaranteed on every job. When you're ready, call (949) 619-8295 or send the form below.
Slab foundations in Lake Forest and nearby
A single-family frame house of up to two stories, not part of a development of four or more homes, is exempt from the state's earthquake hazard rules, but Lake Forest can still ask for more. So we check with the building office before work starts, and if your slab needs a permit, we handle the application with you.
Where those state rules do apply, the city has to require a site study by a state-licensed engineering geologist or civil engineer before issuing a permit. We build from that study and the engineer's plans the same way in Mission Viejo, Irvine and other Orange County cities, and if yours isn't listed here, call and ask.
Tell us about your slab
Send your address, the slab size on your plans and any site study already done. We reply within one business day, and the on-site estimate is free, with no obligation.
Call (949) 619-8295Slab foundation questions we hear
What does a slab foundation cost in Orange County?
A reinforced concrete slab in Orange County usually runs about $8 to $14 per square foot, according to one cost guide. That's the area's going rate, not our price, and where yours lands depends on its size, thickness and design. I'll price your own slab from the plans on site.
Do I need a post-tensioned slab for my house in Lake Forest?
Not always, since your engineer's design and soils report decide it. The Post-Tensioning Institute calls post-tensioned slabs a cost-efficient choice for homes on soil that swells and shrinks, and says they also cut cracking and control joints on firmer ground. When you compare bids, ask how each design handles cracking from settling, shrinkage and temperature.
Will my new concrete slab foundation crack?
Probably a little, because concrete is weak when it's pulled apart and some cracking shows up in most concrete work. Drying shrinkage and temperature cause most of it, so ask any crew how they'll cure the slab and when they'll cut the joints. Those two are where we put our closest attention.
How soon can I walk on or build on a new concrete slab?
One cost guide says a slab should be walkable within 48 hours, but it suggests waiting a week before putting heavier loads on it. The same guide says full cure takes a month, so plan lumber drops and heavy equipment for after that first week.
Is my Lake Forest lot in an earthquake hazard zone?
You can find out by typing your address into the state's EQ Zapp map, which shows whether the lot sits in a mapped earthquake hazard zone. It also shows when the state hasn't evaluated an area yet. Check before design starts, since it bears on whether the site study covered above applies.