About Our Gaming PC Repair Service
Gaming PC Repair Near Northwood Hills
Mr Gadget repairs and upgrades custom gaming PCs and pre-built systems. Whether your gaming PC won't turn on, is crashing mid-game, running too hot, or just needs an upgrade, our technicians carry out full diagnostics and professional repairs.
We are based at 84 High Street, Rickmansworth, WD3 1AQ — convenient for customers travelling from Northwood Hills. Walk-ins are welcome, or call ahead on 01923 934966 to book a time slot. All repairs carry a warranty and begin with a free diagnostic.
Services
Our Gaming PC Repair Services
Diagnostics & Fault Finding
Gaming PC issues can have many causes — GPU, CPU, RAM, PSU, or software. We carry out a full component-level diagnostic to identify the exact fault.
- Component-level testing
- POST & BIOS fault diagnosis
- GPU fault detection
- PSU load testing
GPU Repair & Replacement
A faulty graphics card causes crashes, artefacts, black screens, and poor performance. We repair and replace GPUs from all major brands.
- GPU diagnostic & testing
- GPU replacement
- Thermal paste renewal on GPU
- VRAM fault diagnosis
Power Supply Replacement
A failing PSU causes random shutdowns, no-power issues, and instability. We replace PSUs with quality units rated for your system's power requirements.
- PSU fault diagnosis
- PSU replacement
- Cable management
- Wattage upgrade
Cooling & Thermal Maintenance
Overheating gaming PCs throttle performance and risk component damage. We clean systems, renew thermal paste, and install better cooling solutions.
- Deep internal cleaning
- CPU & GPU thermal paste renewal
- Fan replacement
- Aftermarket cooler installation
Storage Upgrade & Replacement
Upgrade to an NVMe SSD for fast boot times and game load speeds. We handle the upgrade and data transfer.
- NVMe M.2 SSD installation
- SATA SSD upgrade
- HDD to SSD migration
- RAID configuration
Build, Upgrade & Assembly
New component upgrade or a full custom build — we handle sourcing advice, assembly, cable management, and OS installation.
- RAM upgrade
- CPU upgrade
- Full custom PC build
- Windows installation & driver setup
Devices Covered
Gaming PC Models We Repair
Custom & Pre-built
Components Supported
Pricing
How Much Does Gaming PC Repair Cost?
Transparent, competitive pricing with no hidden fees.
From
£39
Full Diagnostic
From
£51
Thermal Clean & Paste Renewal
From
£64
GPU Replacement (labour)
* Starting prices. Component costs are additional. Contact us for a full quote.
Why Choose Mr Gadget
Trusted Gaming PC Repair Near Northwood Hills
Fast Turnaround
Most repairs completed the same day. Popular parts kept in stock to avoid delays.
Warranty Included
Every repair comes with a warranty. No small print, no hidden conditions.
Free Diagnostic
We diagnose for free and give you a clear quote before any work starts.
Quality Parts
Genuine or premium-grade parts used as standard on every repair.
Expert Technicians
Experienced across all major Gaming PC models, carrying out repairs year-round.
Fair Pricing
Transparent, competitive prices. We always find the most cost-effective solution.
How It Works
Simple, Straightforward Repair Process
Bring It In
Walk in or book ahead. Open Mon-Sat 9am-5pm at 84 High Street, Rickmansworth.
Free Diagnostic
We check your device thoroughly and give you a clear, no-obligation quote.
Repair
Once you approve, our technicians carry out the repair using quality parts.
Collect
Pick up your device — most jobs done the same day. Warranty included.
Customer Reviews
What Our Customers Say
"Brilliant service — had my gaming pc repaired quickly and at a fair price. Staff were knowledgeable and honest throughout. Highly recommend Mr Gadget."
"Free diagnostic as promised, clear quote, repair done the same day. Exactly what you want from a repair shop. Will definitely return."
"Exceeded my expectations. Transparent pricing, fast turnaround, and the repair has held up perfectly. Excellent local shop."
FAQs
Frequently Asked Questions
Can you repair any gaming PC brand?
Yes — we repair custom-built PCs and all major pre-built gaming PC brands including Alienware, HP Omen, Lenovo Legion, ASUS ROG, and MSI.
My gaming PC keeps crashing or blue screening — what could it be?
Blue screens and crashes can be caused by faulty RAM, a failing GPU, overheating, driver issues, or a dying PSU. We carry out a full diagnostic to identify the exact cause.
Can you upgrade my GPU?
Yes — GPU upgrades are one of our most popular services. We advise on compatible cards for your system, handle the swap, and test performance after installation.
Is the diagnostic free?
Yes — our gaming PC diagnostic is free. We check all components and give you a clear breakdown of faults and repair costs before starting any work.
Where are you located and how far is it from Northwood Hills?
Mr Gadget is located at 84 High Street, Rickmansworth, WD3 1AQ. We are easily reachable from Northwood Hills by car. Walk-ins are welcome Monday to Saturday, 9am to 5pm. Alternatively, you can use our mail-in repair service if travelling is not convenient.
Get in Touch
Visit, Call, or Message Us
Mr Gadget is located at 84 High Street, Rickmansworth, WD3 1AQ. Walk-ins welcome Mon-Sat 9am-5pm.
Call Us
01923 934966Address
84 High Street, Rickmansworth, WD3 1AQ
Opening Hours
Monday - Saturday: 9am - 5pm
Other Areas We Cover
Gaming PC Repair in Nearby Areas
We provide gaming pc repair to customers from all surrounding towns and villages.