Profile: Surefin Mechanical Equipment, Inc. is a custom coil manufacturing company. We serve the marketplace with quality custom coils and accessories for commercial, government, industrial and institutional applications as well as military installations. Our application coil needs are for HVAC heating and cooling, evaporator DX coil, condenser coil, booster coil or tube bundles, discover the quality advantage of coils. A cooling coil or heating coil has no moving parts, and no performance-improving adjustments are required ? and a few can be made ? once it is installed. It must be built with the required performance in mind. Therefore, performance optimization at the design stage is critical.