Computer Cleaning and Maintenance Services in Hong Kong

Do it yourself

DIY

150-400 Expenses (cans, brushes, and paste)

Estimated time: 30–240 minutes
Cleaning Depth: Surface, Fan, Filter
High risk: static electricity, unable to install, broken pins
Who this is for: People with basic DIY skills who want to save money

Xiong Technology Professional Cleaning and Maintenance

By the KUMA Team

450-950* (Depending on the model / the nature of the incident)

Drop the phone; it will take half a day to a day
Or schedule an in-home visit; please allow one to two hours
Complete disassembly, deep cleaning, replacement of lubricant, pressure testing, and cable management
Low risk (experienced, well-maintained)
Busy, Newbie, Water-cooled PC, Work PC

Recommended Cleaning Schedule (Hong Kong Environment)

Average user: Dust it off every 6 months
Pets / Near a road / Placed on the floor: Check the filter every 3 months
Smoking is permitted in the room: We recommend every 2–3 months, because e-liquid can stick to dust and form a sticky residue that’s very hard to clean.
Water-cooled machine: Deep-clean the condenser coil at least once a year and check the connections for signs of leakage.

Has your computer been making a lot of noise lately? Does it freeze up while gaming or suddenly go black while watching videos? Most of the time, it’s not a hardware failure—it’s dust causing the trouble! Hong Kong’s climate is humid and dusty, so when a thick layer of dust builds up inside your computer case, the cooling fans lose power. As a result, the CPU and graphics card automatically throttle down when they overheat, causing a significant drop in performance.

Kuma Technic’s repair shop in Tsuen Wan handles dozens of heavily dust-covered computers every month. Today, we’re sharing our standard cleaning procedure so you can do it yourself—or at least understand how professional cleaning is done.

Tool Name	Why use it?	How much does it cost in Hong Kong?
Compressed air spray can	The most effective tool: a strong, dry breeze blows dust out of crevices	$ $35 -$ 70 per piece
Anti-static soft-bristle brush	Brush away stubborn dust from the fan blades and circuit boards	$15
High-concentration isopropyl alcohol (99%)	Clean old thermal paste residue from the CPU/GPU surface	40 per stick
Thermal paste	Replace aged and cracked thermal paste	$$60 -$ 100
Microfiber cloth	Wipe down the glass and metal surfaces of the computer case without leaving lint behind	$$10 -$ 20

Tools you should never use:

Home vacuum cleaners — The friction from the brush head generates static electricity, which can damage the base plate in a matter of minutes; excessive suction may dislodge small parts.
Wet towels — Water is the arch-enemy of circuit boards; contact with water causes a short circuit
Hot air from a hair dryer — High temperatures can melt the adhesive and cause deformation

Step 3: Clean section by section, working from the outside in

① Cabinet Housing & Filter

Remove the front panel and the dust filter at the bottom, rinse them with water, and let them air dry in a cool, shaded place.
Simply wipe the side panels of the case with a slightly damp cloth.

② CPU/GPU cooler (most critical)

Use an air canister to blow air from top to bottom across the heat sink fins,Be sure to hold the fan blades down with your finger.Don't let it idle.
Reason: When a fan spins at high speed, it acts as a generator, producing a reverse current that can burn out the fan connector—this is the most common mistake made by beginners.
If there is stubborn dirt on the fins, first loosen it with a soft-bristled brush, then blow it off.
The same applies to graphics cards—be careful not to blow dust away from the area around the slot.

③ Power supply (power adapter)

Just cover the mesh with a gas canister and blow into it,Don't open the power supply case.There are high-voltage capacitors inside, so it's very dangerous.

④ Surface of the motherboard

Use a soft-bristled brush to gently brush away dust from the bottom panel, especially around the RAM slots and M.2 SSD.
Don't press too hard, to avoid damaging the solder joints or small capacitors.

Step 4: Replace the thermal paste (optional; recommended once a year)

If you notice that the CPU idle temperature exceeds 55°C, or if it frequently exceeds 100°C while gaming, it's time to replace the thermal paste.

Steps:

Unscrew the screws on the CPU cooler and carefully lift it off (if the thermal paste has dried and is stuck, gently wiggle it before lifting).
Use a paper towel dipped in a small amount of alcohol to wipe away the old thermal paste from the CPU lid and the bottom of the heatsink until the surface is shiny.
Squeeze a pea-sized amount of new thermal paste onto the center of the CPU, reinstall the heatsink, and tighten the screws (tighten them diagonally to ensure even pressure).
Plug the fan cable back in, turn on the computer, and check the temperature in the BIOS. It should be 10–20°C lower than before.

Xiong Technology can do even more for you

In addition to cleaning and maintenance, we also offer:

🔧 PC-Repair: Hardware replacement, system crash, Blue Screen of Death diagnostics
💾 Data Rescue: Hard drive crashed, deleted the wrong file
🖥️ Bricklayer: Tailored to your budget and needs
🏢 Enterprise IT Outsourcing: 24-hour emergency support, server maintenance

How can you find us?

📞 WhatsApp: +852 5690 5795 (12:00 PM – 2:00 AM)
📍 Address: Unit 08, 25/F, Block GF, Golden Bear Industrial Centre, 66-82 Chai Wan Kok Street, Tsuen Wan, Hong Kong