Rich experience in air conditioner technology

Hongyi is the choice for confidence in cleaning air conditioners! Electrical and Mechanical Services Department approved electrical contractors with more than 20 years of professional experience in handling air-conditioning projects for countless housing estates and organizations. Provide one-stop air-conditioning engineering, air-conditioning repair and maintenance, and air-conditioner cleaning services.
With years of familiar customer support, we are rich in experienced technicians who have worked in various types of environments. No matter what your requirements are, we are professional and rich in knowledge to provide specifications that suit your needs. Whether it is a home, work area or warehouse that requires air-conditioning, we will provide effective and efficient equipment options for different customers.

Window type air conditioner

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Split Air Conditioner

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Ceiling type split air conditioner

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Concealed central air conditioner

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Our professional quality service

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Professional air-conditioning cleaning service

The choice of cleaning air conditioner confidence! Electrical and Mechanical Services Department approved electrical contractors with more than 20 years of professional experience, handling air-conditioning projects for countless housing estates and organizations.
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Professional maintenance air-conditioning service

Hong Yi Engineering Development Co., Ltd. has a dedicated air-conditioner maintenance team. Repairing air-conditioners involves professional skills, so don't get cheap repairers for inferior repairers. With professional knowledge of Hong Kong air-conditioning, rich experience in air-conditioning engineering (installing air-conditioning, air-conditioning dripping, air-conditioning dripping repair, air-conditioning removal), and sincere attitude, you can definitely hire with peace of mind.
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Professional installation of air-conditioning service

Hongyi Engineering Development Co., Ltd. has many years of experience in installing air conditioners. We are happy to provide you with professional advice and effective solutions, affordable, professional, reliable and sincere.
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Professional air-conditioning maintenance service

Hongyi Engineering Development Co., Ltd. has set up an emergency maintenance team to serve the whole Hong Kong and make emergency maintenance. Long-term maintenance services: on-site inspection and evaluation, providing evaluation reports, arranging works, regular follow-up and reminding to replace parts and maintenance services.
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