
ICF INSULATED CONCRETE FORM WALLS — ENERGY EFFICIENT & STRONG
ICF (Insulated Concrete Form) construction uses interlocking foam blocks that serve as both the concrete form and permanent insulation. The foam blocks are stacked, reinforced with rebar, and filled with concrete. The result is a wall with continuous insulation on both sides (typically R-22 to R-26), superior air sealing, excellent sound attenuation, and the structural strength of reinforced concrete. ICF is popular for energy-efficient homes, basements, and storm-resistant construction.
Starting at $25 per sq ft of wall
foam forms provide R-22 to R-26 insulation on both sides of the concrete core.
the concrete core creates an inherently airtight wall assembly.
reinforced concrete withstands extreme weather and reduces noise transmission.
ICF construction delivers the best of both worlds — the energy efficiency of continuous foam insulation and the structural strength of reinforced concrete. Our ICF crews stack interlocking foam blocks, install reinforcement, and fill with concrete to create walls that are dramatically more energy-efficient, quiet, and durable than conventional framing.
You want the most energy-efficient wall system available — ICF typically reduces heating and cooling costs 30-50% compared to conventional framing.
Stack interlocking foam blocks per the wall plan, setting window and door bucks, and bracing for concrete placement.
Install horizontal and vertical rebar per engineering specifications within the foam block cavities.
Fill forms with self-consolidating concrete in lifts, vibrate as needed, and allow to cure.
ICF typically adds 5-10% to overall construction cost compared to conventional framing. However, the energy savings (30-50% reduction in heating/cooling), quieter interior, and increased durability provide rapid payback — often within 5-7 years on energy savings alone.
$25 - $45
per sq ft of wall
*Varies by project scope and site conditions.
Leave Concrete to the Pros
When you choose Legacy General Services for your concrete project in the NW Metro, you're choosing a partner committed to quality that lasts.
MN-registered contractor since 2023. Insured and trusted by homeowners across the NW Metro.
No hidden fees or surprise charges. Upfront pricing on every concrete project—big or small, start to finish.
On-time scheduling and reliable project timelines. We show up when we say we will and finish on schedule.
Air-entrained, freeze-thaw resistant concrete built for Minnesota winters. Every pour meets or exceeds code.