design-build consulting, using cost trade-off analysis during design to align project budgets with performance goals. CK Builders delivers energy assessments, whole-house performance upgrades, and support for utility rebate and financing programs. In addition, it provides indoor air quality services and bio-toxin and mold consulting to address moisture, ventilation, and contamination issues in existing buildings. Its work is oriented toward creating durable, efficient, and healthier living and working spaces for its clients.