What do we inspect?
Distribution boards, protective devices (MCBs/RCBOs/RCDs), cabling, earthing/bonding, documentation (schematics/circuit schedule) and alignment with actual use. We assess electrical safety (shock/fire) and functional performance.
Prijsindicaties keuring en inspectie
Wij werken met duidelijke vanaf-prijzen. Stuur bij voorkeur foto's van groepenkast, aansluiting of storing via WhatsApp voor een realistische inschatting.
Keuring en meting
Dienst
Ex. btw
Incl. 21% btw
Opmerking
Aarding meten/controleren
vanaf €95
€114,95
Met meetwaarde of korte terugkoppeling
Aardpen slaan + meten
vanaf €295
€356,95
Afhankelijk van diepte en bereikbaarheid
Basis veiligheidscontrole / advies
vanaf €165
€199,65
Eerste controle van kast, aardlek, aarding en zichtbare gebreken
NEN 1010 oplevercontrole met rapport
vanaf €275
€332,75
Voor oplevering of gewijzigde installatie
Uitgebreide inspectie met meetrapport
vanaf €345
€417,45
Meer meetpunten en uitgebreidere rapportage
NEN 3140 installatiecontrole
vanaf €275
€332,75
Voor bedrijf/pand, afhankelijk van omvang
Groepenkast
Dienst
Ex. btw
Incl. 21% btw
Opmerking
Groepenkast 1-fase 6 groepen
vanaf €650
€786,50
Inclusief materialen en montage
Groepenkast 1-fase 8 groepen
€700
€847,00
Inclusief materialen en montage
Groepenkast 1-fase 12 groepen
€800
€968,00
Inclusief materialen en montage
Groepenkast 3-fase 9 groepen
€850
€1.028,50
Inclusief materialen en montage
Alle bedragen zijn vanaf-prijzen. De definitieve prijs hangt af van situatie, bereikbaarheid, kabelroute, materiaal en meetresultaten. Meerwerk wordt vooraf besproken.
The distribution board has to handle more and more
Many installations were originally designed for a normal home or small business. Over time, more loads are added: induction cooking, an EV charger, a heat pump, solar panels and sometimes a home battery. Each addition may make sense on its own, but together they put serious demand on the distribution board, main fuse, earthing and phase distribution.
- Is the load still balanced correctly across the phases?
- Are cooker, EV charger, heat pump, PV and battery circuits properly protected?
- Has simultaneous use and peak load been considered?
- Is selectivity between main fuse, RCD/RCBOs and final circuits still correct?
- Are circuits, cables, breakers, RCDs and labels still logical and demonstrably safe?
- Is documentation clear enough for owner, installer and insurer?
That is why inspection is not only useful for the customer. Insurers, landlords, property managers and businesses also benefit from a clear report. After damage, overheating, faults or expansion, you want to be able to show that the installation was inspected, measured and documented.
When to (re)inspect?
- Commissioning or modification of an installation (NEN 1010)
- Periodic in-service inspection (NEN 3140) — risk-based interval; often 1–5 years
- Change in use or load (e.g. EV charger, heat pump, PV)
- Handover/tenant change or insurer/OSH requirement
- After faults, thermal issues or consumer-unit upgrades
Our process
- Scope & preparation (drawings, previous reports, operations)
- Visual inspection (build, labelling, IP rating, penetrations, fire load)
- Measurements & tests (insulation, continuity, loop impedance, RCD test, etc.)
- Reporting with photos, readings and priorities (Pass/Fail)
- Remediation advice and quote (optional); re-inspection after fix
Measurements & tests
- Insulation resistance • PE continuity • Earth resistance
- Fault loop impedance / PSCC • Polarity • Phase sequence
- RCD/RCBO test (IΔn, trip time) • Voltage drop (where relevant)
- Functional tests of protections/emergency systems • SPD check and, if applied, AFDD
Deliverables
- PDF report with findings, photos and measurement records
- Defect list with priority (safety/continuity/regulatory)
- Concrete remediation plan • Re-inspection report after fixes
Related inspection topics
Frequently asked questions about electrical inspections
What is included in an in-service NEN 3140 inspection?
Visual inspection, safety measurements/tests and a report with priorities and recommendations.
How often should I re-inspect?
Depends on installation and use; typically every 1–5 years. We advise a suitable interval based on risk.
Can you carry out remediation as well?
Yes. We can fix defects and then issue a re-inspection report.
Is NEN 3140 mandatory?
Strictly speaking no, but employers have a duty of care. NEN 3140 is the usual way to demonstrate compliance; insurers or contracts may add requirements.
What does an electrical installation inspection cost?
A NEN 1010 commissioning inspection with report starts at €275 excluding VAT. The final price depends on boards, circuits, site, documentation and access.
What is the difference between NEN 1010 and NEN 3140?
NEN 1010 concerns design, installation and commissioning. NEN 3140 is used for safe operation and periodic inspection of installations already in use.
What is included in the commissioning report?
The report records scope, visual findings, relevant readings, photos, defects and practical remediation priorities.
Should an installation be inspected after renovation?
An inspection is sensible after significant changes, uncertain previous work or when requested by an owner, insurer or client.
How long does an electrical inspection take?
Duration depends on installation size, number of circuits and boards, access and available documentation.
Quote checklist (useful information)
- Site type (residential, commercial, industrial) and address
- Number of distribution boards and main supply (1-/3-phase, fuse rating)
- Approx. number of final circuits and special circuits (EV, PV, cooker/Perilex, heat pump)
- Access windows / ability to isolate power
- Available documentation (schematics, previous reports, circuit schedule)
- Known issues/symptoms (RCD tripping, hotspots, etc.)