Frontpage – do not edit 2017-09-20T15:57:29+00:00

We are a fine custom home builder in Charleston, South Carolina. We specialize in super energy-efficient homes at competitive pricesContact Us Today!

Our EcoShell home building process starts with your interest in building a ZERO Energy Design™ home that significantly reduces your energy demand and exceeds EPA Indoor Air Plus quality standards.

Insulsteel is the developer of the EcoShell™ which is a highly energy-efficient, superior indoor air quality building enclosure system.

Our EcoShell integrates structural composite material technology and offsite panel fabrication that significantly reduces the total cost of building ownership. EcoShells are also designed to “Zero Energy Standards” and built to withstand seismic forces and hurricane winds up to 220 MPH.

Additionally, Insulsteel has built family sized homes with electric bills as little as $15 month .

Insulsteel, is recognized as a national member of the prestigious Top 1% of US Builders” by the US Department of Energy.

The Insulsteel® EcoShell incorporates advanced building science technologies to design, manufacture and build high performance Luxury style homes direct to our client’s budgets.

Home Building Awards





Insulsteel is an award winning company with a reputation for consistent innovation at the highest level of design.