“Christchurch is two patches stitched together. The town-centre stock around the Priory and the Quay is mostly Victorian and Edwardian — period townhouses where the board sits in the cellar and you can’t surface-trunk anywhere visible. Then once you cross over toward Mudeford and Highcliffe you’re into 1960s and 1970s bungalow country, often retiree-owned, where the original board has been in there since Harold Wilson was Prime Minister. Different jobs, different conversations. The thing both halves share is salt — even properties two miles inland get the wind off the harbour, and outdoor circuits corrode faster than they do on the Wimborne side. I always test the outdoor circuits on a BH23 survey before I quote, because it’s the difference between a £550 swap and an £850 job that includes a sub-board for the garden and the porch.”
— Tim Collier, Founder & NICEIC Engineer
Christchurch Consumer Unit Upgrade Pricing
Fixed price after a free 15-minute on-site survey. Every figure includes the new board, all RCBOs, labour, full test schedule, NICEIC certificate, and Building Control notification through the competent-person scheme.
| Board type | Price (fully fitted) |
|---|---|
| 6-way RCBO board (small flat / Mudeford coastal apartment) | From £450 |
| 10-way RCBO board (Somerford semi, Friars Cliff bungalow) | From £550 |
| 14-way RCBO board (4-bed Highcliffe detached, period townhouse with extension) | From £750 |
| Add audible trip alert (recommended for hard-of-hearing households) | + £45 |
| Add SPD (surge protection — coastal-fed BH23 supplies) | + £95 |
| IP-rated outdoor sub-board (Mudeford / Highcliffe coastal protection) | + £200–£300 |
| Heritage-finish containment (Priory conservation area) | + £120–£250 |
Most BH23 properties land in the 10-way bracket. Coastal stock in BH23 4 and 5 (Mudeford, Highcliffe) sometimes adds the sub-board option once we’ve seen the state of the existing outdoor circuits on survey.
Which Board Do You Need?
The decision aid below covers the property types we see most often around BH23. The price column is the all-in fitted cost, not just the board.
| Property type | Recommended board | All-in price | Notes |
|---|---|---|---|
| 1-bed Mudeford coastal flat | 6-way RCBO | From £450 | Marine-grade gland glands recommended for any external circuit |
| 1960s Friars Cliff / Burton bungalow (typical retiree property) | 10-way RCBO + audible trip alert | From £585 | Audible trip alert added on request — useful for hard-of-hearing households |
| 1970s Somerford / Purewell semi or detached | 10-way RCBO | From £550 | Most common BH23 job — straight swap of an aging Wylex board |
| 4-bed Highcliffe detached (often coastal-corrosion-affected) | 14-way RCBO + IP-rated outdoor sub-board | From £850 | Salt-air corrosion of outdoor circuits common — sub-board protects the indoor unit |
| Period townhouse near the Priory (BH23 1) | 10-way RCBO + heritage containment | From £700 | Heritage-finish containment if any new cabling is needed inside listed property |
| Christchurch Harbour-side property (flood zone) | 14-way RCBO mounted high + SPD | From £850 | Board mounting height min. 1.2 m above floor — flood resilience |
Send a photo of your existing fuse box on WhatsApp — we’ll come back with a recommendation in under an hour.
How a Lilliput Christchurch Consumer Unit Upgrade Works
Three steps from first call to a fully certified board. No call centre, no subcontractor — you deal with Tim or Oscar throughout.
1. Free survey & fixed quote
We come to your Christchurch property, photograph the existing board, test outdoor circuits for salt-corrosion (BH23 4 & 5 properties especially), check supply arrangement, inspect meter tails and main earth, and document each circuit. For listed properties around the Priory we plan cable routing on the day. Fixed-price written quote within 24 hours.
2. Booked install day
Most BH23 jobs booked 1–2 weeks out. We arrive 8:30 AM, isolate at the cutout (we coordinate with SSEN if a meter seal pull is needed), fit the new RCBO board, re-terminate every circuit, label clearly, and run the full test schedule. Power back same afternoon. We always remind older BH23 customers to charge medical equipment overnight before the install day.
3. Certification & aftercare
Hard-copy NICEIC Electrical Installation Certificate on the day, digital copies within 5 working days, and Building Regulations compliance certificate via BCP Council Building Control auto-notification — no paperwork on your end. Six-year workmanship guarantee.
Recent Consumer Unit Upgrade in Christchurch
A representative BH23 job: a 1965 bungalow in Friars Cliff, retiree-owned for the last 22 years, where the original Wylex board with rewireable fuses had been giving them low-grade trouble for years. The trigger was an EICR ahead of a remortgage that came back unsatisfactory with five C2 codes — all on the consumer unit. We surveyed Tuesday morning, found the outdoor garden circuit had salt-corroded glands (BH23 4 patch is exposed), and quoted £625 for a 10-way RCBO with the audible trip alert and a single-circuit IP65 outdoor enclosure. Fitted the following Wednesday. The customer’s wife told us afterward it was the first time they’d been able to leave the kitchen kettle, the bathroom shower and the garden lights on at once without “something popping out”.
What Actually Changes When You Upgrade
For most Christchurch customers the £450–£1,200 spend turns into four practical changes worth understanding before the work starts.
From rewireable / split-load to RCBO-per-circuit protection
- Rewireable fuses are slow to disconnect under fault — they meet the regulations of 1970, not 2018. The stock around Burton, Friars Cliff and the older parts of Mudeford is full of them.
- RCBOs combine overcurrent and earth-fault protection, disconnecting in under 40 ms when they detect 30 mA earth leakage. That’s the difference between a tingle and an A&E visit.
- Each circuit gets its own RCBO — a fault in the kitchen never takes the lights or the heating off.
From plastic to metal enclosure (BS 7671:2018)
- The 18th Edition (2018, amended 2022) requires consumer units inside dwellings to be in metal enclosures or in a 30-minute fire-resistant cupboard.
- Old plastic boards melt and propagate fire — the regulation change followed serious fire incidents in the early 2010s.
Coastal-aware additions (BH23 4 / 5)
- SPD: surge protection device. Coastal-fed BH23 supplies pick up surge from grid switching and lightning. £95 one-time spend protects every appliance on the board.
- Outdoor sub-board: where Mudeford / Highcliffe properties have multiple corroded outdoor circuits, fitting an IP-rated sub-board fed from the indoor unit isolates outdoor faults and protects the new indoor board from salt ingress.
- Marine-grade glands: outdoor circuit terminations switched to 316-grade stainless glands with neoprene seals — resists salt-air corrosion for 25+ years.
EICR codes that drive Christchurch upgrades
- C1 — Danger present: immediate risk; the board is made safe before we leave the property.
- C2 — Potentially dangerous: 28-day fix window for landlords. “No RCD on socket circuits” is the most common C2 finding on older Christchurch stock.
- C3 — Improvement recommended: not legally required but advised. Plastic enclosure or no SPD typically scores C3.
If your EICR has any C1s or C2s on the board, an upgrade is the cleanest single fix. Read the BCP Council enforcement context — same legal framework applies across BH23.
What Christchurch & BH23 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."
Google Review
"Absolutely brilliant electrician. Always on time, tidy, good price, and top-quality work. Highly recommend."
Google Review
"Fantastic job from Tim & the team. Would highly recommend."
Google Review
BH23 Coverage — Postcodes & Drive Times
Same fixed pricing across every BH23 postcode. Drive times measured from our Poole base at Unit 45 Balena Close (BH17 7DY) via the A35.
| Postcode | Areas covered | Drive time |
|---|---|---|
| BH23 1 | Christchurch town centre, the Priory, Bargates, the Quay | 25 min |
| BH23 2 | Jumpers, Iford, Tuckton-side | 22 min |
| BH23 3 | Somerford, Purewell, Stanpit | 26 min |
| BH23 4 | Mudeford, Friars Cliff | 30 min |
| BH23 5 | Highcliffe, Hinton, Walkford | 32 min |
| BH23 8 | Burton, Bransgore, Hurn | 28 min |
Outside BH23? See all Dorset coverage or jump to our Christchurch area page for full electrical service details.
Christchurch Consumer Unit FAQs
A standard domestic consumer-unit upgrade in Christchurch starts from £450 fully fitted — that includes the new RCBO board, all labour, the full test schedule, the NICEIC certificate, and Building Control notification. The Christchurch factor that occasionally moves the price is salt-air corrosion: BH23 4 and 5 properties (Mudeford, Friars Cliff, Highcliffe) often have outdoor circuits — porch lighting, garden sockets, EV chargers — where the original glands and connections have corroded. We test each circuit before quoting, so any remedial work is in the fixed price up front.
Yes. Christchurch town centre is 25 minutes via the A35 / Saint Catherine's Hill. Mudeford is 30 minutes, Highcliffe 32, Somerford 26, Burton 28. Same fixed pricing across every BH23 postcode, no per-mile surcharge, same 1–2 week typical lead time. We do consumer-unit upgrades, EV chargers and EICRs across the whole BH23 area — not just the town centre.
BH23's bungalow stock is one of the most common upgrade jobs we do. Three things come up repeatedly: (1) the original wiring is often rubber-insulated (TRS or VIR) which becomes brittle after 50+ years and is now Code C2 on an EICR — sometimes the board upgrade pairs with a partial rewire, (2) older homeowners benefit from an audible trip alert on the new board, which buzzes if a circuit drops out (the Hager AT200 module costs about £45 fitted), and (3) the meter cupboard layout in 1960s bungalows is often the original asbestos-cement panel — we replace these as part of the upgrade where present. Bungalow upgrades typically land at the £585 price point with the audible-alert add-on.
Listed-building consent isn't normally required for a like-for-like consumer-unit replacement because the board is internal and the works are reversible. What changes for properties near the Priory, on Bargates, around the Quay or in the High Street conservation area is cable routing: we don't surface-mount plastic trunking on visible interior walls of period properties, we re-use existing routes where possible, and where new cabling is unavoidable inside a listed property we use heritage-finish containment (brushed brass or painted steel). We've done a number of jobs around BH23 1 with no issues from BCP Council Conservation.
Yes, in two ways. First, on survey we'll test the existing outdoor circuits (porch lighting, garden sockets, any pond pumps, outside taps with tracers) for insulation breakdown — corroded conductors are a Code C2. Second, where we find corrosion, we'll quote either replacement of the affected outdoor circuits to current standards (IP-rated glands, marine-grade junction boxes) or, for properties with multiple outdoor circuits, an IP-rated outdoor sub-board fed from the new indoor consumer unit. The sub-board approach protects the indoor unit from salt ingress and isolates outdoor faults cleanly. Total cost premium for a coastal Mudeford property is typically £150–£300 above the standard board price.
A straight single-phase swap is one day, typically 4–6 hours from supply isolation to re-energising. We arrive 8:30 AM, isolate at the cutout (we coordinate with SSEN if a meter seal needs pulling — Christchurch is on the SSEN network), fit the new RCBO board, re-terminate every circuit, label clearly, and run the full test schedule. Power back same evening. You can stay in the property — just expect lights, fridge, kettle and Wi-Fi to be off until early-to-mid afternoon. We always remind older customers in BH23 to charge any medical equipment (CPAP machines, mobility chairs, hearing-aid stations) overnight before the install day.
No, the opposite. A consumer-unit upgrade is the cleanest single fix for the most common EICR fail codes — C2 (Potentially dangerous) findings of "no RCD on socket circuits" or "plastic enclosure" both clear instantly with a modern RCBO board in a metal enclosure. We issue the new Electrical Installation Certificate and Building Control compliance certificate on the day; both are accepted by BCP Council Housing Standards as the remedial-action evidence. If you're worried about BCP enforcement specifically, see our blog on <a href="/blog/bcp-council-eicr-enforcement-bournemouth/">BCP Council EICR enforcement</a> — same legal framework applies across BH23.
Yes. Every consumer-unit upgrade we do comes with a full Electrical Installation Certificate (EIC) issued under our NICEIC enrolment, plus the Building Regulations compliance certificate from Building Control via the competent-person scheme. Both are accepted by BCP Council Building Control, by mortgage lenders, by conveyancing solicitors, and by buyer's surveyors. We email digital copies within 5 working days; the original hard copy stays in your house file for the next surveyor.