Consumer Unit Upgrade, Poole & Bournemouth — Modern RCBO Boards from £450

NICEIC registered · fixed-price quotes in 24 hours · every postcode from BH1 to BH17, plus Wareham, Wimborne, Christchurch and the surrounding villages.

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A modern RCBO consumer unit upgrade costs from £450 fully fitted for a 6-way board, £550 for a typical 10-way 2–3 bed home and £750 for a 14-way 4–5 bed — every price including materials, labour, the full test schedule, the NICEIC certificate and Building Control notification. Same fixed pricing across Poole and Bournemouth: jump to Poole (BH12–BH17) or Bournemouth (BH1–BH11).

“Most boards I see are 18th Edition split-load units fitted in the early 2000s. They worked fine in their day, but they only have two RCDs covering the whole house — trip one and you lose half the property. A modern RCBO board gives every circuit its own protection, so a fault in the kitchen never takes the lights out upstairs. That's the practical reason most of my customers upgrade.”

— Tim Collier, Founder & NICEIC Engineer

Consumer Unit Upgrade Pricing

Fixed price after a free 15-minute survey. Every figure includes materials, labour, the full test schedule, the NICEIC certificate, and Building Control notification.

Board typePrice (fully fitted)
6-way RCBO board (small flat / 1-bed)From £450
10-way RCBO board (typical 2–3 bed home)From £550
14-way RCBO board (4–5 bed / extended home)From £750
Add SPD (surge protection device)+ £95
Add AFDD (arc fault detection) per circuit+ £65
Three-phase commercial boardFrom £1,200

Most homes fall into the 6-way or 10-way bracket. Older properties in Sandbanks, Canford Cliffs and the conservation streets around Poole harbour sometimes need new meter tails alongside the board change — we flag that on survey, before quoting. Our 2026 consumer unit cost guide breaks down what drives the price.

Which board do you need?

The decision aid below covers the property types we upgrade most often across Poole and Bournemouth. The price column is the all-in fitted cost.

Property & existing boardRecommended boardFromNotes
1930s bay-fronted semi with an original rewireable-fuse board — Winton, Moordown (BH9/BH10), Branksome 10-way RCBO From £550 The single most common job we do — typically zero RCD coverage on the existing board
Edwardian terrace with rubber or lead-sheathed circuits suspected — Charminster, Springbourne (BH7/BH8), Parkstone, Penn Hill 14-way RCBO + new tails From £900 EICR almost always finds Code C2 cable degradation — full RCBO is the cleanest fix while the wiring is investigated
1960s–80s estate house with a split-load board on a single 30 mA RCD — Kinson (BH11), Creekmoor, Canford Heath (BH17) 10-way RCBO From £550 Trip the kitchen circuit and you lose the upstairs sockets too — RCBO-per-circuit ends the nuisance trips
Modern flat conversion, full 8-way dual-RCD board — Westbourne (BH4), Poole town centre 14-way RCBO + EV-ready spare ways From £750 Adds capacity for an EV charger circuit and a battery-storage feed
HMO needing a landlord EICR fix (board scored C2) — Boscombe, Springbourne 10-way RCBO From £600 28-day BCP enforcement window — we prioritise booking inside that fix window
Town-centre apartment with limited cupboard space — BH1 / BH2, Poole Quay 6-way RCBO compact From £450 Slim-line enclosure where space is tight; same NICEIC certification

How a Lilliput Consumer Unit Upgrade Works

Three steps from first call to a fully certified board. No call centres, no subcontractors — you deal with Tim or one of the team directly throughout.

Free survey & fixed quote

We come to your property, photograph the existing board, check the incoming supply (TN-S, TN-C-S or TT earthing), inspect the meter tails and main earth, and write down circuit by circuit what's connected. You get a fixed-price written quote within 24 hours — no estimates that creep up later.

Booked-in install day

Most jobs are booked within 1–2 weeks. On the day we arrive at 8 AM, isolate at the cutout (we contact SSEN to pull the meter seal if needed), fit the new RCBO board, re-terminate every circuit, label everything clearly, and run the full Electrical Installation Certificate test schedule. Power is back on the same evening — usually mid-afternoon.

Certification & aftercare

You get a hard copy of your Electrical Installation Certificate on the day, the NICEIC sticker on the board, and the digital certificate by email within 5 working days. We notify Building Control automatically through the NICEIC competent-person scheme — you don't need to do anything. Six-year workmanship guarantee on every board we fit.

Why upgrade now?

Most older boards across Dorset fall into one of three categories that warrant an upgrade:

What Actually Changes When You Upgrade

Here's the practical difference between an old fuse box and a modern RCBO consumer unit.

Old fuse box / pre-2008 split-load board

  • Rewireable fuses or BS 1361 cartridge fuses (slow to disconnect under fault)
  • No RCD protection, or one RCD covering the whole house
  • No protection for sockets that might serve outdoor equipment
  • No labelling of circuits beyond pencil markings
  • Likely no main earth conductor of correct size

Modern 18th Edition RCBO consumer unit

  • Each circuit on its own RCBO — trips disconnect that one circuit only
  • 30 mA RCD protection on every circuit (Code C3 fail without it)
  • Optional surge protection device (SPD) protects against transient overvoltage from lightning or grid switching
  • Optional AFDDs (arc fault detection devices) on bedroom and high-risk circuits — recommended in the 2022 amendment
  • Metal enclosure (steel) to BS 7671:2018, replacing combustible plastic enclosures
  • Clear typed circuit labelling and a properly bonded main earth

Codes you might see on an EICR

If you've had an EICR (Electrical Installation Condition Report) recently and it came back unsatisfactory, the codes that most often trigger a board upgrade are:

  • C1 — Danger present: immediate risk. The board must be made safe before the engineer leaves.
  • C2 — Potentially dangerous: needs fixing within 28 days for landlords. Most "no RCD on socket circuits" findings are C2.
  • C3 — Improvement recommended: not legally required, but advisable. Plastic enclosure or no SPD typically scores C3.
  • FI — Further investigation: something the inspector couldn't determine without further testing — often a sign of unrecorded historic alterations.

If your report has any C1s or C2s on the consumer unit itself, an upgrade is the cleanest fix. Read our full EICR guide for landlords for the legal context.

Consumer Unit Upgrades in Poole — BH12 to BH17

Poole is our home patch. We work out of Unit 45 Balena Close in Creekmoor (BH17 7DY), so every Poole postcode is inside a 20-minute drive and survey slots are usually same-week. The two boards we replace most often here are the pre-2008 split-load units in 1970s–80s Creekmoor and Canford Heath estate housing, and the original rewireable-fuse boards still sitting in 1930s Parkstone and Branksome semis. Larger period and waterfront properties around Sandbanks, Canford Cliffs and Lilliput often need new meter tails alongside the board change — identified at survey, quoted before we start.

PostcodeAreas coveredDrive time
BH12 Parkstone, Branksome, Newtown, Alderney 8–12 min
BH13 Sandbanks, Canford Cliffs, Branksome Park 15–20 min
BH14 Lower Parkstone, Penn Hill, Lilliput, Whitecliff 10–15 min
BH15 Poole Old Town, Poole Quay, Hamworthy, Oakdale 8–12 min
BH16 Upton, Lytchett Minster, Sterte 10 min
BH17 Creekmoor, Canford Heath, Fleetsbridge (our base) 0–5 min

For every electrical service in the area, see our Poole electrician page.

Consumer Unit Upgrades in Bournemouth — BH1 to BH11

Same fixed pricing across every BCP postcode, no per-mile surcharge. Drive times are measured from our Poole base via the A338 / A347 / Wessex Way. Charminster (BH8) and Winton (BH9) skew Edwardian and 1930s respectively, and both regularly come back from an EICR with Code C2 on the existing board — no RCD protection on socket circuits — which is what triggers most upgrades here. Boscombe (BH5) splits between Edwardian terraces near the seafront and 1960s flat conversions; the flat conversions are usually quicker single-day jobs. Landlord C2 remediation is prioritised inside the 28-day BCP window.

PostcodeAreas coveredDrive time
BH1 / BH2 Town centre, East Cliff, West Cliff, Lansdowne, seafront 25 min
BH3 / BH4 Talbot Woods, Talbot Heath, Westbourne village 22 min
BH5 / BH6 Boscombe, Pokesdown, Southbourne, Tuckton 28 min
BH7 / BH8 Springbourne, Queens Park, Charminster, Holdenhurst, Iford 26 min
BH9 / BH10 Winton, Moordown, Northbourne, Ensbury Park 22 min
BH11 Kinson, Bear Cross, West Howe 18 min

For every electrical service in the area, see our Bournemouth electrician page.

What Customers Say

★★★★★

"I have used Lilliput electrical for about 11 years. Tim wired my kitchen extension, and put in a consumer unit when I moved into my home. More recently he has carried out a number of smaller jobs including moving a socket and advising about and fitting lighting. He is always courteous and very helpful. This firm is very trustworthy and the work is tidily completed. I have no hesitation in recommending them as genuinely no job is too big or too small."

Sarah Holt

Google Review

★★★★★

"We have used Lilliput Electrical for the past five years. They have installed numerous items for us in that time, including going out of their way to source out of stock items. They are great to work with and we find them to be reliable and very professional. They are who we shall call for our future electrical needs."

John Buckley

Google Review

★★★★★

"Excellent! On time, worked quickly, great manners and most importantly none of the standard cowboy tradesman BS. Highly recommend!! Thanks Tim!"

Christopher Watson

Google Review

Common questions

A modern RCBO consumer unit upgrade starts from £450 fully fitted — that includes the new metal-enclosed board, all RCBOs, labour, the full test schedule, the NICEIC Electrical Installation Certificate, and Building Control notification through the competent-person scheme. Larger boards (10-way / 14-way), three-phase boards, or installations that need new meter tails or an earth rod replacement run higher — typically £550 to £1,200. We give a fixed price after a free 15-minute survey, so there are no estimates that change on the day.

The same fixed pricing applies across BH1–BH11 as anywhere else — from £450 fully fitted, no per-mile surcharge. The Bournemouth-specific factors that occasionally move the price are housing stock and access: pre-1940 properties in Charminster, Springbourne, Winton or Westbourne often have rubber or lead-sheathed circuits behind the existing board that need investigating before we re-terminate; flat conversions in BH4 / BH6 sometimes share a sub-meter arrangement that needs SSEN to attend the cutout. Both are identified at the free survey, before you get a price.

We cover the whole of Dorset for consumer-unit upgrades from our Poole base at Unit 45 Balena Close (BH17 7DY) — same fixed pricing everywhere, no per-mile surcharge. Poole (BH12–BH17) and Bournemouth (BH1–BH11) have full postcode coverage tables on this page. Wareham (BH20), Wimborne (BH21), Christchurch (BH23), Ferndown, Ringwood, Broadstone, Sandbanks and the surrounding villages are all covered at exactly the same fixed pricing.

All three describe the same thing — the central distribution board that splits your incoming supply into the individual circuits around your home. "Fuse box" is older terminology (pre-2000) for boards with rewireable wire fuses or BS 1361 cartridge fuses, which protect against overcurrent only. "Consumer unit" is the modern term. "Fuseboard" is the colloquial Dorset term you’ll often hear. The modern replacement is a metal-enclosed unit with RCBOs — one per circuit — that disconnect within 40 ms when they detect 30 mA of earth leakage. The 18th Edition (BS 7671:2018) requires RCD protection on virtually every domestic circuit, so pre-1990 boards are almost certainly non-compliant. Same fixed price whichever word you use.

There’s no law that forces a like-for-like upgrade purely because your board is old. Three triggers create legal pressure: (1) if you’re a landlord, your 5-yearly EICR will record old-board non-compliance as a Code C2 (potentially dangerous) — you have 28 days to fix it to keep the property legally lettable; (2) if you’re selling, the buyer’s surveyor will flag an old board and that often becomes a price-renegotiation point; (3) if you’re adding any major circuit (EV charger, electric shower, kitchen extension), the new circuit must be on a compliant board.

BCP Council enforcement gives landlords 28 days from the date of the EICR to remediate any Code C1 or C2 finding and keep the property legally lettable. We prioritise booking landlord C2 fixes inside that window — typically we survey within 48 hours and install within 7–10 working days anywhere in BH1–BH17. The most common landlord-driven upgrade is the 1930s and 1960s housing stock around Winton, Moordown, Boscombe and Charminster where there’s no RCD protection on socket circuits — an automatic Code C2, and the only clean fix is a full board replacement. We issue the EICR remediation certificate the same day we finish so you can update your BCP licence record inside the window. See our BCP enforcement guide for the full process.

Pre-1955 rubber-sheathed cable (replaced industry-wide by PVC) becomes brittle after 60+ years and the insulation can fall away when disturbed. We see it regularly on lighting circuits in Edwardian Charminster, Springbourne and Queens Park properties, and in Victorian Parkstone and Poole Old Town stock. The board upgrade itself is straightforward, but during the install we test every circuit’s insulation resistance and earth-loop impedance before re-energising — if any reading is non-compliant we flag that circuit on the new certificate as needing further investigation rather than energise something unsafe. Some pre-1940 properties need a partial rewire of the lighting circuits as a follow-up. We can quote both at once, and combined pricing usually saves £400–£800 versus sequential jobs.

A straight single-phase swap is one day, typically 4–6 hours from supply isolation to re-energising. We arrive at 8:30 AM, isolate at the cutout (coordinating with SSEN if a meter seal needs pulling — they’re the network operator across all of Dorset), fit the new RCBO board, re-terminate every circuit, label clearly, and run the full Electrical Installation Certificate test schedule. Power back the same evening, usually mid-afternoon. The exception is BH4 / BH6 flat conversions where a shared cutout sometimes means coordinating a brief shutdown with neighbours — we plan that at the survey so there are no surprises.

Yes — every consumer-unit upgrade includes a full Electrical Installation Certificate (EIC) issued under our NICEIC enrolment, plus a Building Regulations compliance certificate from Building Control via the competent-person scheme. Both are accepted by mortgage lenders, conveyancing solicitors, BCP Council Building Control, Dorset Council Building Control, and home-buyer surveyors. Hard copies on the day; digital copies within 5 working days.

Yes — a consumer-unit replacement is notifiable under Part P of the Building Regulations. Because we are NICEIC-registered and members of the competent-person scheme, we notify Building Control on your behalf automatically. You don’t apply to BCP or Dorset Council yourself, you don’t pay a separate Building Control fee, and you receive the compliance certificate by email shortly after the install. Use anyone who isn’t in a competent-person scheme and you’ll have to apply to the council yourself — and pay them £200+ for an inspection.

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Ready to Upgrade Your Consumer Unit?

Free survey, fixed price, NICEIC certified, six-year workmanship guarantee — anywhere in Dorset. Call 07809 680068, WhatsApp Tim, or email.

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