Laptop Overheating Issues: Symptoms, Fixes & Professional Repair Centre
Laptop heating issues are among the most common problems users face, and if ignored, they can lead to permanent hardware damage caused by excessive heat.
At PC Fix London, we repair overheating laptops every day — from simple dust blockages to severe motherboard-level faults. Laptop heating problems are not just about noise or discomfort; they can seriously damage your device.
We specialise in diagnosing and repairing overheating issues to restore smooth, reliable performance and ensure long-term stability. Over the past 15 years, we’ve successfully completed more than 5,000 laptop repairs, making us a top choice for gamers and high-performance laptop users in London.
Need urgent help with laptop overheating repairs in London?
Call 020 7018 7490 now — no appointment needed, walk-ins welcome!
Signs of Overheating Issues
- Laptop suddenly runs very slow
- FPS drops while gaming
- Fans making loud or unusual noise
- Laptop feels extremely hot underneath
- No fan noise at all — possible fan failure
- Fan rattling, vibrating, or out of balance
- Error messages (HP System Fan 90a, Dell 2000-0511, Lenovo 0135) — error codes may not always appear
Why Do Laptops Overheat?
- Dust blocking cooling vents and restricting airflow
- Worn-out or dried thermal paste on CPU/GPU causing poor heat transfer
- Damaged or faulty fans not spinning (never ignore fan error messages)
- Super I/O / EC chip not controlling fan speeds correctly
- Loose connectors or faulty power rails preventing fans from powering
No matter the cause, our technicians have the tools and expertise to fix it — often the same day.
How We Fix Overheating Issues
The first step is diagnosing the fault. We run stress tests to benchmark fan speed and temperatures, check noise levels, and visually inspect for dust build-up or obstructions.
Sometimes, motherboard component failures are the cause. For example, faulty power rails may prevent fans from powering, or the Super I/O/EC chip may fail to manage fan speeds properly.
In other cases, the fans themselves are defective. Depending on the fault, we apply the correct repair or replacement.
After repairs, we run performance and stress tests to ensure safe operating temperatures, proper fan speeds, and reduced noise levels before returning your device.
Real Case Study – Alienware Overheating & Performance Throttling
Incident
A customer brought in an Alienware gaming laptop with an i9 processor that overheated within 3–5 minutes. Fans ran at maximum speed, the laptop was hot to touch, and performance dropped due to thermal throttling.
Fault
- Heavy dust and hair build-up inside vents blocking airflow
- Poor ventilation causing hot air recirculation
- Dried, cracked thermal paste on CPU and GPU
- Fan bearings showing early wear and noise
Our Approach
- Full internal cleaning of vents and the cooling system
- High-quality thermal paste replacement on CPU and GPU
- Fan lubrication and testing (replacement not required yet; customer advised for future)
- Stress and benchmarking tests to confirm stable temperatures
Result
- CPU/GPU temps dropped by up to 25°C
- Fan noise reduced significantly
- No more throttling — stable performance
- Customer could resume editing work without issues
This case highlights how overheating issues can seriously impact performance, but with expert repairs, laptops can be restored to long-term stability.
Why Choose PC Fix London for Overheating Laptop Repairs
- No Fix, No Fee: Pay only if your laptop is successfully repaired.
- Guarantee: All work comes with a repair guarantee.
- Quick Turnaround: Same-day service available.
- Certified Technicians: Microsoft & electronics-qualified engineers with 15+ years’ experience.
- Original Parts: Genuine parts used for reliability and performance.
- Central London Location: Convenient King’s Cross repair centre.
- Trusted by Businesses & Students: Serving professionals, gamers, and students across London.
Common Laptop Models We Repair for Overheating Issues
At PC Fix London, we repair overheating problems across all major laptop brands and models, including:
- Dell XPS & Inspiron – Dust build-up and dried thermal paste issues
- HP Pavilion, Envy & Omen – Frequent fan and cooling failures
- Lenovo ThinkPad & IdeaPad – Blocked vents and thermal control issues
- Asus ZenBook, VivoBook & ROG – Gaming laptops prone to GPU overheating
- Acer Aspire, Swift & Predator – Fan faults and paste degradation
- MSI Gaming Laptops – High-performance GPUs running hot
- Huawei MateBook Series – Slim designs trapping heat
- Samsung & Sony VAIO – Older models with dust and fan wear
- Apple MacBook Pro / MacBook Air – Overheating during intensive tasks or battery swelling
Whether you use a work laptop, ultrabook, gaming machine, or general-purpose device, we’ll reduce temperatures, improve stability, and extend your device’s lifespan.
Ways to Get Your Overheating Issues Repaired
Drop-Off – No Appointment Required
Bring your laptop directly to our London repair centre during business hours.
Nationwide – Courier Collection (UK)
We can arrange courier collection anywhere in the UK (additional charges apply).
PC Fix London – Local Laptop Overheating Repair Experts
PC Fix London
Thanet Street, King’s Cross, London WC1H 9PZ
Phone: 020 7018 7490
Opening Hours: Monday – Friday, 10am – 6pm
FAQs About Laptop Overheating Issues
Q: What causes a laptop to overheat so quickly?
A: Dust blocking airflow, degraded thermal paste, failing fans, heavy workloads (gaming/video editing), or using the laptop on soft surfaces that block air vents.
Q: Can overheating damage my laptop permanently?
A: Yes. Prolonged overheating can warp components, damage CPU/GPU, shorten battery life, and cause data corruption. Early repair prevents major failures.
Q: How do I know if my fan is failing?
A: Warning signs include grinding or rattling noises, fan speed not adjusting with heat, or the fan not spinning at all. If it runs loud but consistently, the fan may be fine but overworked due to another issue.
Q: How long does an overheating repair take?
A: Many fixes (cleaning, thermal paste replacement, fan swap) are done the same day. Complex motherboard work may take 1–3 days depending on parts.
Q: Will replacing thermal paste make a difference?
A: Yes. Quality paste can drop CPU/GPU temps by 10–30°C and reduce fan noise, especially if the old paste was dry or cracked.
Q: Can I fix overheating myself?
A: You can try safe steps like cleaning vents, software optimization, and updating BIOS/drivers etc. But for fan faults, paste replacement, or board-level issues, professional repair is recommended.