Shanghai Four Seasons With You Environmental Engineering Co., Ltd. is a professional supplier of integrated central system solutions.Registered capital: 10.8 million RMBSupported by the seven major systems of central air conditioning, central fresh air, heating, hot water, water treatment, lighting, and kitchen appliances, and guided by the new concept of healthy home living, we aim to promote a lifestyle that is healthy, comfortable, safe, ecological, and energy-saving, thus enhancing the quality of life for our customers.

Shanghai Four Seasons, since its establishment, has been deeply loved by a wide range of customers. The company adheres to the principle of "honest business operations and customer-first service," providing efficient services to numerous office...

Professional technical support is provided to a variety of venues including buildings, hotels, shopping centers, supermarkets, dining and entertainment, education, factories, transportation, residential villas, and more.

Shanghai Four Seasons, through continuous "service optimization and innovative management," strives to break through and perfect all aspects of our services. In the fierce market competition, we have achieved outstanding results and a direct driving force for sustainable development, while also securing broader space and platforms for the company to more actively participate in social business activities. At the same time, we have accumulated many successful experiences.

Shanghai Sijiuyu is committed to seeking new products, new technologies, and new processes. We uphold stringent quality standards and take full responsibility for our customers. As a company with a strong sense of social responsibility, Shanghai Sijiuyu has gained positive recognition from the public and partners over the past few years and never forgets to give back to society. Our business is continuously expanding, with deep cooperative relationships with brands like Carrier, York, Midea, Hitachi, and more. Keeping pace with the times, technological advancements, and evolving concepts, Shanghai Sijiuyu Environmental Engineering Co., Ltd. is also constantly improving our management level. We are dedicated to honesty, trustworthiness, serving the public, and meeting user needs, with a genuine spirit of friendship, and we are eager to cooperate with people from all walks of life.