Laptop overheating causes the CPU/GPU to throttle (reducing performance to stay cool), makes the fan run loudly, and in severe cases causes sudden shutdowns. Left untreated, it shortens component life and can permanently damage the motherboard. Most overheating issues are fixed for ₹399–₹999 with a professional clean and thermal repaste.
How to Check If Your Laptop Is Overheating
Download HWMonitor (free) or Core Temp. Run your laptop at normal load and check temperatures:
- CPU under load: Below 85°C is good. 85–95°C is concerning. Above 95°C is throttling territory.
- GPU under load: Below 85°C is fine. Above 90°C is high.
- CPU at idle: Should be 35–50°C in a normal room. Above 60°C at idle indicates a problem.
7 Causes of Laptop Overheating
1. Dust Buildup in Heatsink (Most Common)
The copper heatsink fins get clogged with dust over 12–18 months of use. Airflow drops, heat cannot escape, temperature rises. The fan runs at 100% but the hot air cannot get through the blocked fins.
Fix: Professional deep clean — brush the fins, blow out compressed air, clean the fan bearing. Cost: ₹499–₹799. Temps typically drop 10–20°C.
2. Dried Thermal Paste
Thermal paste between the CPU/GPU chip and the heatsink transfers heat efficiently when fresh. After 2–4 years, it dries and cracks — thermal conductivity drops dramatically.
Fix: Thermal paste replacement. Cost: ₹399–₹699. Temps typically drop 8–15°C.
3. Fan Failure
Signs: Fan is either silent (not spinning) or makes a grinding/rattling noise. Fan speed in HWMonitor shows 0 RPM.
Fix: Fan replacement. Cost: ₹799–₹2,499. Time: same day.
4. Blocked Vents (Usage Position)
Using a laptop on a bed, pillow, or lap blocks the bottom vents completely. Some thin laptops also have side vents that get blocked by walls or cases.
Fix: Use a hard, flat surface. A laptop stand (₹299–₹799) raises the laptop and improves airflow by 30–40%.
5. Extreme Ambient Temperature
In Mumbai's summer (March–June), an un-air-conditioned room can hit 35–40°C. A laptop's cooling system is designed for 20–25°C ambient. At 40°C room temperature, the laptop runs 15–20°C hotter than usual.
Fix: Work in a cooler environment, or use a cooling pad. Combine with a clean + repaste for best results.
6. High CPU/GPU Load from Background Processes
Antivirus scans, Windows Updates, or a browser with 40 tabs open can run the CPU at 80–100% continuously — generating heat even when you aren't doing anything intensive.
Fix: Check Task Manager. Schedule heavy tasks for when plugged in and in a cool environment.
7. Damaged or Missing Thermal Pads
Modern laptops use thermal pads on VRAM and other chips in addition to paste on the CPU. If these pads are hardened, cracked, or were not replaced after a previous repair, those chips run dangerously hot.
Fix: Thermal pad replacement. Cost: ₹799–₹1,999. Done alongside a full deep clean.
Overheating Repair Cost — Mumbai 2026
| Fix | What It Includes | Cost | Temp Drop |
|---|---|---|---|
| Thermal paste only | Old paste removed, new applied | ₹399 – ₹699 | 8–15°C |
| Deep clean only | Fins brushed, fan cleaned | ₹499 – ₹799 | 10–20°C |
| Deep clean + repaste | Both combined (recommended) | ₹699 – ₹999 | 15–25°C |
| Fan replacement | New fan + clean + repaste | ₹1,299 – ₹2,999 | 20–30°C |
Get a Free Diagnosis from Xigox
Not sure what's wrong? Our technician diagnoses your laptop for free and gives you a fixed written quote before any work starts.
- 📞 Call / WhatsApp: +91 74997 61196 (9 AM–9 PM, 7 days)
- 🚗 Free doorstep pickup across Mumbai, Thane & Palghar
- ✅ 90-day warranty · Genuine-grade parts · Same-day service
How Much Does Laptop Repair Cost in Mumbai?
Laptop repair costs in Mumbai vary by fault: battery replacement ₹1,500–₹3,500, screen replacement ₹2,500–₹8,000, keyboard replacement ₹1,200–₹3,000, fan clean and thermal repaste ₹699–₹999, SSD upgrade ₹3,000–₹5,000 (parts), motherboard chip-level repair ₹2,500–₹12,000. The exact price depends on your laptop brand and specific model. Xigox provides a free diagnostic and a fixed quote before any work begins — no hidden charges, no surprises.
How Long Does Laptop Repair Take?
Battery, keyboard, fan cleaning, RAM, and SSD upgrades complete the same day — most within 2–4 hours at our workshop after pickup. Screen replacement takes same day to 1 day depending on panel availability for your specific model and resolution. Motherboard chip-level repair takes 2–5 days depending on fault complexity and component sourcing. We confirm the exact timeline before collecting your device and send WhatsApp progress updates throughout.
Is Doorstep Laptop Repair in Mumbai Safe?
Yes. Xigox technicians are trained and ID-verified professionals. All repairs are hardware-only — your data is never accessed, copied, or transferred at any point during the repair. Your storage drive stays inside the laptop throughout. You receive a digital job receipt with technician name, repair details, and part information. All parts and labour carry a 90-day warranty.
