Professional Chemical Wash Service in Petaling Jaya

Why Your Aircond Needs a Chemical Wash

If your air conditioner is blowing warm air, producing a musty smell or leaking water, chances are the evaporator coil and drainage system are clogged with dirt, mould and bacteria. A standard filter clean simply cannot reach these deep-seated contaminants. That is where our professional chemical wash comes in.

Over time, dust, grime and moisture accumulate inside your aircond unit. This buildup restricts airflow, forces the compressor to work harder and drives up your electricity bill. Left unchecked, it can lead to frozen coils, water leaks and even compressor failure — repairs that cost far more than regular maintenance.

Our Chemical Wash Process

At PJ Kool Aircond Service, we do not cut corners. Every chemical wash follows a thorough, step-by-step process carried out by senior technicians — never apprentices or trainees.

Step 1: Full Unit Dismantle

We begin by carefully removing the indoor unit cover, air filters, blower wheel and fan barrel. This gives us full access to the evaporator coil and drainage tray — areas that a basic cleaning cannot reach.

Step 2: Chemical Coil Treatment

Using professional-grade chemical solution, we treat the entire evaporator coil surface. The chemical dissolves stubborn dirt, mould, bacteria and grease that have accumulated over months of use. This is especially important for homes in Petaling Jaya and Damansara, where humidity levels are consistently high and mould growth is a common problem.

Step 3: Drainage System Flush

A blocked drainage line is one of the most common causes of aircond water leaks. We flush the entire drainage system with chemical solution to clear any blockages and prevent future leaks. This step alone saves many homeowners from water damage to walls and ceilings.

Step 4: Component Cleaning & Reassembly

Every removed component — including the blower wheel, fan barrel, filters and covers — is cleaned individually before reassembly. We ensure everything is fitted securely and operating correctly.

Step 5: FREE Gas Top-Up & Performance Test

We check the refrigerant pressure and provide a FREE gas top-up of up to 10kg (R22, R32 or R410A). The unit is then tested to confirm it is cooling at optimal performance. This gas top-up is included in the price — unlike many competitors who charge it as an add-on.

Transparent Pricing — No Hidden Charges

We believe in straightforward pricing. Here is exactly what you will pay for our chemical wash service:

• 1.0 - 1.5 HP: RM160 per unit
• 2.0 - 2.5 HP: RM190 per unit
• 3.0 HP: RM210 per unit

Every price includes the full chemical wash process and FREE gas top-up. We confirm the final cost before starting any work, so there are never any surprises on your bill. For a full market comparison, see our 2026 aircond chemical wash cost guide for Petaling Jaya.

Serving Petaling Jaya and Surrounding Areas

We provide same-day and next-day chemical wash appointments across Petaling Jaya, including SS2, Taman SEA, Damansara Utama, Damansara Jaya, Kelana Jaya, Bandar Utama, Kota Damansara, Subang Jaya, USJ, Puchong, Bandar Sunway and surrounding neighbourhoods.

With over 20 years of experience serving families and businesses across the Klang Valley, PJ Kool Aircond Service has built a reputation for reliable, honest and affordable aircond maintenance. Our senior technicians arrive on time, work efficiently and leave your home clean.

When to Choose Chemical Wash Over Standard Cleaning

A chemical wash is the right choice if your aircond:

• Has not been serviced in 6 months or longer
• Is blowing warm or insufficiently cold air
• Produces a musty, sour or unpleasant odour
• Is leaking water from the indoor unit
• Shows visible mould or dark stains on the vents

For units serviced regularly every 3 to 4 months, a standard cleaning may be sufficient. However, for most homes in Malaysia’s tropical climate, we recommend a chemical wash at least twice a year to maintain peak efficiency and indoor air quality.

Book Your Chemical Wash Today

Do not wait for your aircond to break down. Contact PJ Kool Aircond Service today via WhatsApp to schedule your chemical wash. We offer flexible appointment times, transparent pricing and a 30-day service warranty on every job. Your comfort is our priority.