How On-Site Calibration Services Save Time and Improve Business…
For busy electrical contractors and maintenance teams, every hour spent without essential testing equipment can…
- The Engine House, 2 Veridion Way, Greenwich, DA18 4AL
- +44 20 3488 4180
- info@deosaengineering.co.uk
- Mobile On-Site & Laboratory Calibration Services Across the UK
Keep Your Electrical Testers Audit-Ready with Same-Day Calibration
Reduce downtime and stay compliant with fast, fully traceable calibration services for electrical test equipment. Whether you visit our laboratory or choose our mobile calibration service, our engineers help electricians, contractors, facilities management teams, and commercial organisations keep their equipment ready for every inspection.
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Award winning
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- De'Osa Engineering Services
Electrical Testers Calibration Service
Welcome to De’Osa Engineering Services (DOES). We provide electrical testers calibration service, we know the hassle in quality control that is why our experienced engineers are dedicated to making the process as hassle-free as possible by bringing our Mobile Laboratory to your site or in our On-Site Laboratory, covering London and the Home Counties, we calibrate most makes of 16th, 17th & 18th Edition Testers to National Laboratory Standard with state of the art instruments and software that allows us to do this quickly and accurately with professionalism and exemplary attitude towards customer service and then provide you with Certificates that will prepare you for audit.
De’Osa Engineering Services produces certificates that provides traceability of measurement to recognised National Standards and to the units of measurements realised at the National Physical Laboratory or other recognised National standard laboratories and complies with the requirements of BS EN ISO 10012:2003. this assures you that our work meets the highest standards:
- Documented and controlled procedures
- Qualified engineers
- Controlled calibration environment
- Standard traceability with suitable accuracy
+44 20 3488 4180
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Years Experience
Trusted by Professionals Across Every Industry
Supporting businesses of every size with reliable calibration services that keep equipment compliant, minimise downtime, and ensure teams stay productive.
- Services
Comprehensive Calibration Solutions You Can Rely On
De’Osa Engineering Services offers professional on-site and pick-up calibration for all major electrical test equipment. From multifunction testers to PATs, our certified engineers ensure accuracy, compliance, and minimal downtime—backed by traceable certification to national standards.
Ensure your testing equipment remains accurate, compliant, and ready for every inspection with our professional calibration services and fully traceable certification.
Save valuable time with our fully equipped mobile calibration laboratory. We calibrate your equipment at your premises, helping reduce downtime and keep your team productive.
Send your equipment to our modern laboratory for precise calibration, fast turnaround times, and reliable certification that meets industry standards.
Get in Touch
- Why Choose Us?
Why Businesses Choose De'Osa Engineering Services
We make calibration simple, efficient, and reliable, helping businesses maintain compliance without disrupting daily operations.
Same-Day Service
Fully Traceable Certificates
Mobile Calibration
Collection & Delivery
Competitive Pricing
Annual Calibration
- Equipment We Calibrate
Electrical Test Equipment We Calibrate
Our experienced engineers calibrate a wide range of electrical testing instruments from leading manufacturers.
- How It Works
Simple Calibration in Three Easy Steps
1
Book Your Calibration
Choose an on-site visit or laboratory calibration and schedule a convenient date.
2
We Calibrate Your Equipment
Our qualified engineers perform accurate testing using traceable standards.
3
Receive Certificates & Stay Compliant
Get your calibrated equipment back with fully traceable certificates and future reminder notifications.
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- Customer Testimonials
Trusted by Electricians and Businesses Across the UK
Need Your Tester Calibrated Today?
When time is critical, our rapid calibration service helps keep your projects moving.
Same-Day Calibration
Next-Day Service
Emergency Call-Out
Weekend Availability
- Pricing
Flexible Plans to Fit Your Needs
Basic Plan
Consultation, Licensed Electricians, Basic Warranty
£ 100
/Month
- Cable Checkup & Replacement
- A/C Inspection & Servicing
- Equipment Safety Check
- Circuit Breaker Panel Inspection
- Electrical System Health Check
Standard Plan
+ Priority Scheduling, Discount on Future Services
£ 150
/Month
- Cable Checkup & Replacement
- A/C Inspection & Servicing
- Equipment Safety Check
- Circuit Breaker Panel Inspection
- Electrical System Health Check
Premium Plan
+ 24/7 Support, Environmentally-Friendly Solutions
£ 200
/Month
- Cable Checkup & Replacement
- A/C Inspection & Servicing
- Equipment Safety Check
- Circuit Breaker Panel Inspection
- Electrical System Health Check
Keep Your Equipment Compliant Without the Downtime
Whether you need a single tester calibrated or ongoing support for a large engineering team, we’re here to help with fast, reliable, and fully traceable calibration services.
- Knowledge Centre
Calibration Advice & Industry Insights
Stay informed with practical guides, compliance advice, and expert tips to help you keep your equipment audit-ready.
Why Regular Electrical Test Equipment Calibration Is Essential for…
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Electrical test equipment plays a critical role in ensuring both accuracy and safety on every…