California Energy Efficient Construction Inc., is one of the few PREFERRED CONTRACTORS for ClayTiles and Owens Corning shingles and we are one of the ELITE companies and because of this we are able to provide quality products with a 50 YEAR warranty. New roofing saves 20% off monthly power bill. With more than a 100 years experienced combined, our crews are capable of developing the highest standard quality roofs in order to provide peace of mind to each of our customers.