Call us: 6741 1228


Choose Reliable, Choose COSY

Experience quality air-conditioning services with over 30 years of industry background
contact us now
Certified Professional

All our technicians are officially certified by Singapore’s Building & Construction Authority (BCA) as a CoreTrade Personnel.

Wide Range of Services

From troubleshooting to maintenance, we offer a wide variety of services for upkeep and installation of new and old units.

Over 40 Years of Industry

We have been in the HVAC industry since 1987 and service over 400 satisfied clients monthly.

Looking for Cost-Effective Solutions?

Cosy Engineering is an air-conditioning contractor offering services from Residential areas to Commercial Offices and Buildings. Our staffs are experienced and well-versed in the air-conditioning industry.

There are many air-conditioning contractors in Singapore, but what distinguishes Cosy Engineering from others is the quality to cost ratio.

Our Services

Keep your air-conditioners at optimal performance with frequent maintenance

Air-Con Servicing 

Regularly servicing your aircon helps with the following

• Longevity of aircon unit
• Better overall air quality 
• Better energy efficiency 
• Significantly reduce chances of water leaking

Gas Top-up

Sometimes when your air-conditioning unit doesn’t feel cold, it could be due 

• Insufficient refrigerant in your system
•Piping has some leaks, hence, a drop in refrigerant level

Chemical washing

Chemical washing is needed when 

• Aircon is noisy even after servicing
• Aircon is not cool even after           servicing 
• The condenser has sufficient gas,       however, Air-con is still not cold.

More Services

What can we do for you?

Contact us

Have any Air-Conditioning issues?

Our experts will solve them in no time, Make an Appointment.

6741 1228
Contact us

Having any problems?

Our experts will solve them in no time, Make an Appointment.

(65) 67411228


Why Cosy Engineering Services

Glamorous may not be the first thing people think of when it comes to Air-con services, but for us, it’s one of the most important knowledge we carry. Nothing wears on homeowners like the idea of Air-con issues in such a hot and humid country like Singapore 

Professional Services

Our company is service-oriented, we provide the best services so that our customers have nothing to worry about.

Continuous Learning Culture

We adopt a continuous learning mindset so that we will consistently upgrade our skills. 

Best Offers

We care about your house and we’re not satisfied.

Friendly Support

Our office staffs are efficient and experienced, any issues can be relayed to them and it will be solved.

Experienced Team

Cosy has been in the HVAC industry since 1987, we are experienced and well-versed in this sector.

Affordable Price

Cosy Engineering might not be the cheapest Air-Conditioning contractor, but what we provide is Quality Service for it’s price. So that our customers be rest assured that their Aircons are in good hands.

Starting from a low fee of $60 a trip, try us to find out more about our comprehensive services available

Leave the sleepless nights to us

We recognise that aircon breakdown is one of the most stressful and traumatic events that affect a person quality of life. Let us take care of the problem for you.

Make an Appointment

To date, we have…

Projects completed

Technicians on hand

Satisfied Clients

Choose your pricing plan

We try our best to tailor a package that meets your particular needs and stays within your budget.


$05.99/ Month

  • Switcher and breaker repair

  • Electrical panel inspection

  • Ceiling fan inspection and repair

  • Heating system inspection


$20.99/ Month

  • Ceiling fan inspection and repair

  • Switcher and breaker repair

  • Heating system inspection

  • Electrical panel inspection


$50.99/ Month

  • Switcher and breaker repair

  • Electrical panel inspection

  • Ceiling fan inspection and repair

  • Heating system inspection


Get in touch with us

We would love to listen and address any concerns or feedbacks regarding your Aircon servicing experience

60 Kaki Bukit Pl, #06-17, Singapore 415979

+65 6741 1228 (Office)

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