The second-level qualification for waterproof, anti-corrosion and thermal insulation is one of the qualifications that enterprises engaged in waterproof, anti-corrosion and thermal insulation projects must have. This article will introduce the conditions that need to be met to apply for the second-level qualification of waterproof, anti-corrosion and thermal insulation. First of all, the enterprise needs to have an independent legal personality and have the corresponding business license and tax registration certificate. In addition, the enterprise should also have a good business reputation and a sound management system. 
Secondly, waterproof, anti-corrosion and thermal insulation projects require enterprises to have certain technical strength. Enterprises need to have corresponding engineering and technical personnel and skilled workers to meet the needs of engineering construction. Specifically, the technical person in charge should have more than 5 years of experience in engineering construction technology management, and have the intermediate title or above in the engineering sequence or the professional qualification of a registered constructor. In addition, the enterprise should also hold a post certificate of no less than 10 construction site management personnel, and the construction personnel, quality personnel, safety officers, cost personnel and other personnel are complete.
Finally, the enterprise needs to have a certain engineering performance. The second-level qualification requirements for professional contracting of waterproof, anti-corrosion and thermal insulation engineering require that the technical person in charge (or registered constructor) has presided over and completed no less than 2 projects required by the first-level standard of this category of qualification.
To sum up, a number of conditions need to be met for the second-level qualification of waterproof, anti-corrosion and thermal insulation, including enterprise qualifications, technical strength, management personnel and skilled workers, engineering performance, etc. Companies need to consider and actively prepare relevant materials to ensure a smooth qualification and business.