Emergency Call-Outs
020 3640 2000
At SQR Investigation Testing Ltd, we specialise in diagnosing and resolving complex electrical faults across domestic and industrial properties.
With professional equipment, technical expertise, and fast response times, we deliver safe, compliant, and reliable solutions.

We don’t guess.
We investigate,
diagnose and solve.
At SQR Investigation Testing Ltd, we specialise in diagnosing and resolving complex electrical faults across domestic, commercial and industrial properties.
With professional equipment, technical expertise, and fast response times, we deliver safe, compliant and reliable solutions.

Our services at a glance
At SQR Investigations and Testing Limited, we specialise in professional fault finding, electrical services, electrical installations, and PAT testing tailored to meet your specific needs. Our experienced electrical specialists use advanced diagnostic equipment and proven techniques to quickly identify, assess, and resolve electrical faults with precision and safety. From installations and testing to complex system investigations and repairs, we deliver reliable, compliant, and high-quality solutions to keep your systems safe and fully operational.

Domestic Electrical Services
• Rewiring
• Lighting installations
• Socket installations
• Electrical repairs
• Safety inspections

Fault Finding & Investigations
• Power outage
• Electrical fault finding • Short circuits
• Wiring problems
• Emergency call-outs

PAT Testing
• Industrial appliances
• Lamdlord requirments
• 110V Site Equipment
• Certification provides
• Bulk testing discounts
Our projects – See for yourself!
Take a look at some of our successfully completed projects:

Domestic installations
Domestic electrical installations, wiring, lighting, socket fitting, consumer unit upgrades, fault finding, and safety inspections. Reliable, safe, and compliant electrical services for homes.

Offices
Office electrical installations, lighting systems, power distribution, socket installations, data cabling, fault finding, and safety inspections. Reliable and efficient electrical solutions for workplaces

Restaurants and pubs
Electrical installations for restaurants and pubs, including lighting, power distribution, kitchen equipment connections, sockets, fault finding, and safety inspections. Safe and reliable solutions for hospitality businesses.

Outdoor Lights
Outdoor lighting installation, garden lights, security lights, pathway and patio lighting, wiring, upgrades, and repairs. Safe, reliable, and energy-efficient lighting solutions for outdoor spaces.

5
Employees

20
Successful projects

100%
Customer satisfaction
