Every electrician doing notifiable domestic work in England and Wales needs to be registered with a Part P competent person scheme. The two biggest are NICEIC and NAPIT.
Both do the same fundamental thing: they let you self-certify your domestic electrical work without involving Building Control. Both are government-authorised. Both require assessment. Both cost money.
But they're not identical. The cost, reputation, assessment process, and additional accreditations differ. This guide breaks down exactly what each one offers so you can make the right choice for your business.
What Part P actually requires
Part P of the Building Regulations (England and Wales) says that certain electrical work in domestic properties must either:
- Be done by a person registered with a competent person scheme, or
- Be notified to Building Control before starting (costing the homeowner £200-400 and causing delays)
Option 1 is what customers expect. It's faster, cheaper for them, and signals that you're qualified. Without it, you're asking customers to pay extra for Building Control involvement — most will hire someone who's registered instead.
Scotland is different. Scotland doesn't have Part P. Electrical work is covered by the Building (Scotland) Regulations 2004, and the certification system works through SELECT (the trade association) or the local authority. If you're in Scotland, this comparison still applies for additional accreditation, but Part P registration isn't the driver.
NICEIC: the overview
The National Inspection Council for Electrical Installation Contracting. Founded in 1956, it's the oldest and most recognised electrical competent person scheme in the UK.
What you get
- Domestic Installer registration (Part P self-certification)
- Approved Contractor registration (higher tier, covers commercial)
- Listed on the NICEIC website (consumer search tool)
- Use of the NICEIC logo on marketing materials
- Access to NICEIC technical helpline
- Optional: additional schemes for renewables, fire alarm, EV charging
Requirements to join
| Requirement | Detail |
|---|---|
| Qualifications | NVQ Level 3 or equivalent + 18th Edition (current) + 2391 or 2394/2395 |
| Insurance | Minimum £2M public liability |
| Assessment | Technical assessment of a recent installation at a real property |
| Experience | Evidence of competent electrical work |
| Annual inspection | Yearly re-assessment of your work |
Cost
| Scheme | Annual cost (approx) |
|---|---|
| Domestic Installer | £500-600/yr |
| Approved Contractor | £600-800/yr |
| Additional accreditations (EV, solar, fire) | £100-200 each |
Pros
- Most recognised name in the industry
- Preferred by local authority specifiers and commercial clients
- Carries weight with insurance companies
- Strong technical support
- Consumer-facing "find a contractor" tool drives some leads
Cons
- More expensive than NAPIT (£150-300/yr more)
- Stricter assessment process
- Annual inspections can feel burdensome
- The brand premium may not matter for domestic-only electricians
NAPIT: the overview
The National Association of Professional Inspectors and Testers. Newer than NICEIC but now the second-largest Part P scheme, growing quickly.
What you get
- Part P competent person registration (self-certification)
- Listed on the NAPIT website
- Use of the NAPIT logo
- Technical helpline
- Optional: additional schemes for renewables, fire, ventilation
Requirements to join
| Requirement | Detail |
|---|---|
| Qualifications | Same as NICEIC: NVQ 3 + 18th Edition + 2391/2394/2395 |
| Insurance | Minimum £2M public liability |
| Assessment | Technical assessment of a recent installation |
| Experience | Evidence of competent work |
| Annual inspection | Yearly re-assessment |
The qualification requirements are identical. The assessment process is broadly similar, though some electricians report NAPIT's assessment as slightly less rigid.
Cost
| Scheme | Annual cost (approx) |
|---|---|
| Part P Domestic Installer | £350-450/yr |
| Additional accreditations | £80-150 each |
Pros
- £150-300/yr cheaper than NICEIC
- Same legal authority for Part P self-certification
- Growing reputation — increasingly accepted by specifiers
- Assessment process is equally thorough but some find it less bureaucratic
- Good technical support
Cons
- Less recognised than NICEIC — some commercial clients and specifiers still default to NICEIC
- Smaller "find a contractor" consumer tool
- Less brand recognition with homeowners (though most don't check)
Head-to-head comparison
| Factor | NICEIC | NAPIT |
|---|---|---|
| Part P self-certification | Yes | Yes |
| Government authorised | Yes | Yes |
| Domestic work coverage | Yes | Yes |
| Commercial work coverage | Yes (Approved Contractor) | Yes (additional tier) |
| Annual cost (domestic) | £500-600 | £350-450 |
| Brand recognition | Higher | Growing |
| Preferred by specifiers | Yes (historically) | Increasingly |
| Technical helpline | Yes | Yes |
| Annual assessment | Yes | Yes |
| EV charger accreditation | Yes (additional) | Yes (additional) |
| Solar PV accreditation | Yes (additional) | Yes (additional) |
| Fire alarm accreditation | Yes (additional) | Yes (additional) |
When to choose NICEIC
Choose NICEIC if:
- You do commercial work — local authorities, facilities managers, and specifiers still default to NICEIC on tender requirements. "NICEIC Approved Contractor" on your bid carries more weight than NAPIT.
- You're tendering for public sector contracts — some council frameworks specifically require NICEIC. This is changing (NAPIT is increasingly accepted), but it's still a factor.
- Brand recognition matters to your customers — if your target market is commercial property, the NICEIC name is recognised by building managers and procurement teams.
- You want the strongest possible credentials — NICEIC is the premium option. If you're positioning your business at the top of the market, it aligns with that positioning.
When to choose NAPIT
Choose NAPIT if:
- You primarily do domestic work — homeowners don't check which scheme you're with. They check that you're registered with a scheme. NAPIT and NICEIC are legally equivalent for Part P.
- Budget matters — saving £150-300/yr might not sound like much, but over 10 years that's £1,500-3,000. If you're a sole trader, that's real money.
- You're just starting out — the lower entry cost and slightly less rigid assessment make NAPIT a good starting point. You can always switch to NICEIC later if commercial work requires it.
- You value simplicity — some electricians find NAPIT's processes less bureaucratic. Subjective, but frequently mentioned.
The honest answer
For domestic electricians, it doesn't matter. Both schemes give you identical legal authority to self-certify. Both require the same qualifications. Both do annual inspections. Homeowners don't distinguish between them. Choose NAPIT, save £150-300/yr, and spend the difference on marketing.
For commercial electricians, NICEIC still has an edge. The Approved Contractor accreditation is better recognised by specifiers and procurement teams. This is changing year by year as NAPIT grows, but if you're bidding for local authority contracts today, NICEIC is the safer choice.
For electricians who do both, start with NAPIT for Part P compliance and add NICEIC Approved Contractor status later when your commercial work justifies the cost. You can hold both simultaneously.
Can you switch between them?
Yes. Switching from NAPIT to NICEIC (or vice versa) is straightforward:
- Apply to the new scheme
- Pass their assessment
- Cancel the old scheme at renewal
Your Part P registration transfers — there's no gap in your ability to self-certify. Building Control notifications simply go through the new scheme instead of the old one.
Most electricians who switch do so because their work mix changes. A domestic electrician who starts winning commercial tenders might add NICEIC. A commercial electrician who drops corporate clients might drop NICEIC and keep NAPIT to save money.
What about other schemes?
NICEIC and NAPIT are the two biggest, but other competent person schemes exist:
| Scheme | Notes |
|---|---|
| ELECSA | Part of the NAPIT group. Functionally equivalent to NAPIT. |
| BRE | Backed by the Building Research Establishment. Smaller. |
| Stroma | Multi-discipline scheme (electrical, gas, building control). |
None of these have the market share of NICEIC or NAPIT. They're all valid for Part P compliance, but the recognition factor is lower.
Tracking your registration
Whichever scheme you join, you need to track:
- Registration expiry dates — lapsed registration means you can't self-certify
- Annual assessment dates — miss it and your registration is suspended
- Engineer qualifications — 18th Edition, 2391, EV, fire alarm — each has an expiry
- Insurance renewal — your scheme requires continuous cover
If you're a sole trader, this is manageable with a calendar. If you employ 3+ electricians, each with different qualifications and expiry dates, you need software that tracks it for you and sends alerts before anything lapses.
Muster tracks all qualifications, registrations, and insurance per engineer — with automated alerts at 90, 60, and 30 days before expiry. One missed renewal can cost you thousands in lost work. The alerts pay for themselves.
The bottom line
| NICEIC | NAPIT | |
|---|---|---|
| Best for | Commercial electricians | Domestic electricians |
| Cost | £500-600/yr | £350-450/yr |
| Brand recognition | Higher | Good and growing |
| Legal authority | Identical | Identical |
| Our recommendation | If you bid on tenders | If you serve homeowners |
Both are excellent schemes. Both are government-authorised. The choice comes down to your customer base and whether the NICEIC brand premium justifies the cost for your specific business.
Track every qualification, registration, and expiry date
Muster monitors your team's Part P registration, 18th Edition, 2391, and every other qualification — with automated alerts before anything lapses.
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