Fuse box upgrade cost in Fraserburgh, by board type

• 1. EICR returned Code C2 on the consumer unit

  The most common path. Code C2 means "potentially dangerous" and typically applies when the existing board is a wooden-back, lacks RCD protection on circuits that need it, or is missing cover plates exposing live conductors. Remedial work to fix the codes usually means full replacement.

• 2. Wooden-back board still in service

  Pre-1980s consumer units were often built into wooden enclosures. These don't meet the metal-clad enclosure rule introduced in 2016 and are a fire-risk because faults inside the board can ignite the wood. Replacement is mandatory if you're doing any modifying work near the board.

• 3. BS 3036 rewireable fuses still in use

  Old-style ceramic fuse carriers with wire fuses inside. These don't trip fast enough on modern fault currents and are a Code C2 on EICR by default. Replacement is the only path if you want compliance.

• 4. Adding an EV charger, hot tub, solar, or heat pump

  Each of these adds an inverter load that requires Type A or Type B RCD protection. Older boards with Type AC RCDs throughout don't comply with BS 7671 18th Edition Amendment 2 once an inverter circuit is added. Sometimes a partial upgrade is enough, sometimes the whole board needs replacing.

• 5. Selling or buying a Fraserburgh property

  Buyer's homebuyer survey often flags older boards. Sellers either upgrade pre-listing (faster sale, no negotiation lever for buyer) or accept a price chip on completion. Buyers post-purchase typically upgrade in the first 12 months.

Common questions

Fuse box cost FAQs

• Why is a Fraserburgh fuse box upgrade £550 when I've seen £350 quotes online?

  Quotes around £350 typically come from non-NICEIC electricians or installers who reuse the existing enclosure (which doesn't meet BS 7671 18th Edition Amendment 2 metal-clad requirements introduced in 2016). They might also skip the testing-and-recording step that gives you a compliant certificate. Our £550 baseline is for a full RCBO consumer unit replacement with new metal-clad enclosure, all circuits tested, NICEIC certified. The £200 difference is the difference between a job that passes a future EICR and one that doesn't.

• How long is the power off during a fuse box upgrade?

  Typically 4 to 6 hours of continuous power-off for a standard RCBO upgrade. We coordinate the timing with you (mid-morning to mid-afternoon is standard, avoids freezer concerns and cooking time). For larger or more complex jobs (three-phase, multiple boards, partial rewires combined with the upgrade) we'd plan around your schedule. We don't leave you without power overnight, ever.

• Should I upgrade my fuse box if my EICR returned only Code C3?

  Code C3 means "improvement recommended but not currently dangerous". Strictly speaking you don't need to upgrade. Practically, if you're already considering it for other reasons (planning an EV charger, selling the property, modernising the kitchen), now is a sensible time. If you have no other driver, a Code C3 board can stay in service for several years until the next EICR cycle.

• Can you do partial upgrades, like just replacing a few RCBOs without the whole board?

  Sometimes yes, depends on the existing board and what's failing. If your enclosure is metal-clad and meets current standards, and only a couple of RCDs are aging or non-compliant, we can swap individual devices. Costs from £90 to £180 per device fitted. If the enclosure itself doesn't meet standards (wooden-back, plastic), or the busbar layout is incompatible with modern device dimensions, full replacement is the only path. We tell you which applies after a 30-minute survey.

• Will the upgrade trigger any other work (rewires, supply changes)?

  Sometimes. Two common cascades: (1) if your incoming earth electrode is below 200 ohm we may need to add supplementary rods (£120 to £250), (2) if your supply tails or main switch is undersized for a modern board we may need an SSEN service uplift (free from the network operator but takes 4 to 8 weeks to schedule). We identify both at survey, so you see the full scope before committing. We never start a job and then "discover" mandatory extras on the day.

• Do I need to be home while the fuse box upgrade is done?

  Yes, ideally. We need access to test trip times on every RCBO/RCD which means switching things on and off at the device, watching for nuisance trips on connected appliances, and confirming things like the freezer, fridge, and WiFi router come back up correctly. If you can't be home we can do it with a pre-agreed key safe or letting agent access, but we'll send you a video walkthrough at the end so you see what was done.