Rewires & Boards
RCBO Upgrades
Swap dual-RCD boards for individual RCBO protection.
At a glance
Stop losing half the house every time one circuit trips. RCBOs protect each circuit individually.
- Per-circuit protection
- Retains existing board where possible
- Full test and certification
Older split-load consumer units share two RCDs across all your circuits — so a fault on your kettle can take out your freezer, alarm and Wi-Fi at the same time. Individual RCBOs isolate the faulty circuit only.
In most cases we can retrofit RCBOs to your existing board without replacing the whole unit.
Signs you may need this service
- You've been putting off rcbo upgrades because you're not sure who to trust.
- You've been quoted a price you're not confident in and want a second opinion.
- Your existing installation is ageing, unreliable or no longer meets current regulations.
- You're planning renovation, extension or resale and want the electrics done properly.
- You want a fully certified, TrustMark-registered electrician handling the work end-to-end.
What's included
- Board audit
- RCBO supply and install
- Testing and Minor Works certificate
Why choose Submission Electrical
- TrustMark registered and fully insured.
- Straightforward communication — you'll always know what's happening.
- Fixed prices in writing before any work starts — no surprises.
- Qualified to current 18th Edition (BS 7671) standards.
- Domestic specialists with full commercial capability.
- 24/7 emergency response across Berkshire, Bucks and West London.
- Every job tested, certified and left cleaner than we found it.
Our process
- 01
Talk to us
Send a WhatsApp or give us a call. We'll ask the right questions and give clear, upfront guidance.
- 02
Quote or visit
Straightforward jobs get a fixed price on the spot. Larger works get a site visit and a written quote — no surprises.
- 03
Book a slot
We arrive on time, in uniform, with the parts and tools to do the job first time.
- 04
Certify & tidy up
Every job is tested, certified where required, and we leave the property cleaner than we found it.
FAQ
RCBO Upgrades — FAQs
Yes — we cover Slough, Reading, Windsor, Maidenhead, Uxbridge, Heathrow, Beaconsfield, High Wycombe and most of Berkshire, Buckinghamshire and West London. If you're not sure, send us a WhatsApp with your postcode.
Straightforward work is quoted at a fixed price on the phone or over WhatsApp. Larger jobs get a free site visit and a written quote so there are no surprises.
Yes. Our electricians are qualified to current UK standards (18th Edition, BS 7671) and we carry full public liability insurance.
Absolutely. Every job that requires one is issued with the correct certificate — Minor Works, EIC, EICR or a specific commissioning document.
For smaller jobs, often within a few days. Emergencies are attended 24/7. For larger works we'll give you an honest lead time when we quote.
Yes. Dust sheets go down, waste goes with us, and we leave the property cleaner than we found it. It's a small thing that matters.
Both. We invoice electronically after each job and accept card, Apple Pay and bank transfer.
For notifiable works (consumer units, bathrooms, garden supplies, new circuits) we notify Building Control through a Competent Person Scheme — you'll receive the certificate directly.
Yes — around 60% of our work is domestic and 40% commercial. Whether you're a homeowner, landlord, letting agent, facilities manager or main contractor, we have the experience and paperwork to match.
Yes. TrustMark is the government-endorsed quality scheme for tradespeople. It's your assurance that our work, insurance and consumer protection all meet UK Government standards.
Always. Send us a WhatsApp with a photo of the issue and we'll give you honest guidance — even if it turns out you don't need us at all.
Yes — all our workmanship is guaranteed and TrustMark provides additional consumer protection on top of our own guarantee. Manufacturers' warranties on parts and fittings apply as standard.
Get a quote
Tell us about the job
A few quick questions so we can give you a genuinely useful reply — not a generic price list.
Related services
Consumer Unit Replacement
Upgrade an old fuse box to a fully compliant metal consumer unit with individual RCBOs — safer, more reliable and futureproof.
Read moreFuse Board Upgrades
If your board still has rewireable fuses or a plastic enclosure, an upgrade brings it in line with current UK safety standards.
Read moreHouse Rewires
A complete rewire brings older properties up to modern standards — safer wiring, more sockets, better lighting and futureproof for EV charging and smart tech.
Read moreNeed an electrician you can actually rely on?
Send us a WhatsApp with a quick description of the job and we'll come back to you with clear next steps. Usually within minutes.