Services
Testing and Certification
Insulation and grounding resistance testing, protective device testing, and issuance of certificates per applicable regulations.
Every electrical installation must be tested and certified before being put into use. We perform all required measurements and issue documentation in accordance with applicable regulations.
What we measure and test
- Insulation resistance — verifying the integrity of cable and conductor insulation
- Grounding resistance — measuring the quality of the grounding system
- Protective devices (RCD/RCCB) — testing trip time and trip current of residual current devices
- Protective conductor continuity — checking the continuity of PE conductors
- Touch voltage — measuring voltage on accessible metal parts
When you need a certificate
- Technical inspection and occupancy permit — mandatory test report for new builds and renovations
- Buying, selling or renting a property — pre-purchase inspection and a certificate for the buyer, bank or insurer
- Categorisation of apartments and hotels — documentation for the categorisation and re-categorisation of accommodation
- Periodic inspections — commercial premises, hospitality venues, workshops and buildings with many users
- After works — grid connection, distribution board replacement, EV charger or photovoltaic system
- Suspected poor condition — older buildings with aluminium wiring, no RCD protection or signs of overheating
Documentation
Upon completion of testing, we issue:
- Electrical installation certificate — required for technical inspection of the building
- Measurement report — detailed results of all measurements
- Single-line diagram — updated distribution panel schematic
- Remediation recommendations — if the installation fails, you get a clear list of what needs fixing and a quote for the works
Frequently asked questions
How long is an electrical certificate valid?
The certificate describes the installation's condition on the day of measurement. Technical inspections require a current report; for commercial and hospitality premises periodic inspections every 2–4 years are recommended, for residential ones after every major intervention.
What if the installation fails the test?
You receive a report with a clear list of defects and a quote for remediation. After the remediation we repeat the measurements and issue the certificate — no double charge for the same inspection if we do the remediation.
Do I need a certificate for apartment categorisation?
Yes — the documentation for categorisation and re-categorisation of tourist accommodation includes proof of a compliant electrical installation. We issue the report in the form the competent office accepts.
Have a project or a specific job?
Send us the project documentation or a description of the works — we reply within 24 hours with proposed next steps.