Founded in 2002 by George Modrovic with his associates, the company, ELFI Wall System (EWS) is established as a state-of-the-art energy-efficient, green and sustainable building envelope. EWS’s component-based system begins with a light-gauge steel and EPS proprietary product. The company’s history is a systematic plan of innovation, evolution and technology. Upon evaluation, results indicated that ELFI had perhaps developed the most energy-efficient building envelope in the world. With the leadership of Mr. Modrovic, everyone knew that this was only the beginning, and the natural progression and expansion ensued.

ELFI is a Chicago-based manufacturing, engineering and consultative integrator of energy efficient, environmentally friendly, climate-responsive, pre-fabricated and pre-engineered, wall and roofing systems that integrate, scale and adapt for all structural parameters, and optimize every building initiative.

ELFI’s systems combine structural, load-bearing steel framing and Expanded Polystyrene (EPS) foam insulation into one product. With energy-efficiency foremost, ELFI’s integrative component-based, system of products, methods and processes are state-of-the art in the green-building construction market, and ELFI Systems easily integrated with all efficiency-focused advanced technologies, products and systems.

Effectively utilizing our technology, builders can construct ELFI component-centric buildings in one-third the time when compared with traditional construction methods. This results in significant on-site, time and cost savings (rapid-build technology equals faster ROI (Return on Investment). Lightweight and easy to work with, our two main components, steel and EPS, yield major benefits, such as structural integrity, no termites, mold, mildew, or warping – and, there are no ozone-depleting chemicals – and facilitate superior IAQ (Indoor Air Quality).