Nov 22, 2025
Why Your Aircon Is Making Noise?
Aircon making strange noises? Discover the common causes behind knocking, buzzing, hissing and grinding sounds, and learn when it’s time for proper servicing or troubleshooting.
Read moreAt LK Brothers Engineering Pte Ltd, we offer professional aircon servicing in Singapore, including chemical wash, overhaul, and gas top-up. Our experienced technicians ensure cleaner air, stronger cooling, and longer-lasting aircon efficiency for every home and business.
Keep your aircon clean and efficient to save energy and extend lifespan.
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Deep clean for clogged systems to restore full cooling performance.
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Professional setup with secure piping, proper gas pressure, and quality work.
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We service, install and troubleshoot all major aircon brands for HDB, condo, landed homes and commercial. Our technicians follow NEA-safe practices, protect your home during work, and leave the place tidy. Transparent pricing, honest advice and a 90-day workmanship warranty come standard.
Working with us is quick and hassle-free. From your first message to cool, clean air — we handle everything smoothly so you can enjoy peace of mind.
WhatsApp or call us anytime — just tell us your aircon issue and location. Our team replies fast and helps schedule your preferred date.
Our experienced technician comes on time, inspects your unit, and performs the servicing or repair right away. No hassle, no waiting, no mess left behind.
We test your aircon together, ensure strong cooling, and you’re all set! Every job comes with a 90-day workmanship warranty for peace of mind.
Real Customers. Real Results.
Backed by years of experience and thousands of positive reviews, LK Brothers continues to be Singapore’s trusted name in aircon servicing.
At LK Brothers, we take pride in delivering quality aircon servicing trusted by thousands of Singaporean households and businesses. Here’s why customers continue to rely on our team for every job — big or small.
Our team provides services with workmanship that promises 100% satisfaction.
Delivering fast, reliable and transparent service for complete customer peace of mind.
Transparent pricing with clear breakdowns — what we quote is what you pay.
Our services come with a 90 days warranty for your peace of mind in case any issues were to arise.
Count on us for prompt, dependable solutions and outstanding service - ensuring your comfort and peace of mind, anytime.
Your comfort and peace of mind are our priority — we strive to deliver quality service that meets your expectations every time.
LK Brothers Engineering provides professional aircon servicing, chemical wash, overhaul, gas top-up, and installation across Singapore.
Our experienced technicians cover every region — from Tampines, Bedok, and Pasir Ris in the East to Jurong and Bukit Batok in the West, and from Yishun and Sengkang in the North to Toa Payoh and Hougang in the Central region.
For homes in Singapore’s hot and humid climate, your aircon should be serviced every 3 to 4 months to maintain strong cooling and prevent water leaks. Regular aircon servicing improves energy efficiency, reduces breakdowns, and extends your aircon lifespan.
A professional aircon servicing includes cleaning air filters, checking refrigerant gas, washing evaporator coils, clearing drainage pipes, and testing overall system performance. Our technicians ensure your aircon cooling efficiency is restored to optimal condition.
Aircon chemical wash is a deeper cleaning process compared to general servicing. It removes stubborn mould, dirt, and bacteria from the coil and blower unit using a safe chemical solution — ideal when your aircon is not cold or leaking water.
An aircon chemical overhaul is recommended if your system still performs poorly after a chemical wash. It involves full dismantling and deep cleaning of all components, restoring your aircon’s cooling power and prolonging its lifespan.
If your aircon is blowing warm air or taking longer to cool the room, it may require a gas top-up. Our technicians check for refrigerant leaks and refill the correct gas type (R32 or R410A) for efficient cooling.
Yes, we provide aircon installation for all major brands in Singapore, including Daikin, Mitsubishi Electric, Panasonic, Midea, and LG. Our installation includes site inspection, proper pipe routing, and full testing for safety and performance.
If your aircon is still not cold after servicing, the issue may be due to low refrigerant gas, dirty coils, or a faulty compressor. We recommend a full system check or aircon chemical wash to restore proper cooling.
The aircon servicing price in Singapore starts from around $40+ per unit, depending on service type and aircon condition. LK Brothers offers transparent, affordable pricing for aircon cleaning, repair, chemical wash, and installation.
Yes, we offer emergency aircon repair services across Singapore. Our experienced technicians can handle sudden breakdowns, leaks, and system errors quickly — available for both residential and commercial units.
All aircon servicing and repair jobs come with a 90-day workmanship warranty. This ensures our customers enjoy reliable results and peace of mind after every service.
Aircon making strange noises? Discover the common causes behind knocking, buzzing, hissing and grinding sounds, and learn when it’s time for proper servicing or troubleshooting.
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