Electrical & Security · UK Guide 2026
Consumer Unit Replacement Costs UK: Budget and Quote Guide
JASOTO · Updated October 3, 2026 · 309 words
AI-generated illustration; it does not show a customer project or a tested product.
Changing the consumer unit does not mean existing circuits are already suitable. Ask the electrician how inspection, testing and any necessary remedial work are handled.
Key checks for consumer unit replacement
- Request the proposed circuit and protective-device schedule.
- Confirm certification and labelling are included.
- Require approval before separately quoted wiring repairs proceed.
What changes the consumer unit replacement scope?
Give the provider details about circuit count, existing wiring condition, surge protection, remedial work. Ask which of these apply to your requirement and whether they are included in the proposed service.
- Circuit count
- Existing wiring condition
- Surge protection
- Remedial work
An illustrative quote comparison
One price assumes sound existing circuits; testing identifies separately priced remedial work in another proposal.
Compare the proposed equipment, testing and documentation. Agree how necessary wiring work is evidenced, priced and approved.
Build your consumer unit replacement budget
Use the same scope for each quotation. Enter tax-inclusive figures consistently, and include separately priced work only once.
The calculator below uses the figures you enter from a quotation. It does not estimate market prices. Confirm what the quoted amount includes, whether VAT applies and which costs remain provisional.
- Board specification
- RCBOs
- Surge protection
- Testing
- Certification
- Remedials
Calculate your quoted budget
Use the same scope for each quotation. Enter tax-inclusive figures consistently, and include separately priced work only once.
Enter figures from your quote. Use amounts including VAT consistently. Leave extras blank if none apply. These fields stay in your browser.
Calculated total
Enter valid quoted figures
This is arithmetic using your figures, not a market estimate. Include separately charged work once and check provisional costs with the provider.
Before you book or buy
- Request the proposed circuit and protective-device schedule.
- Confirm certification and labelling are included.
- Require approval before separately quoted wiring repairs proceed.
Frequently asked questions
What should I confirm before budgeting for consumer unit replacement?
Changing the consumer unit does not mean existing circuits are already suitable. Ask the electrician how inspection, testing and any necessary remedial work are handled. Request the proposed circuit and protective-device schedule.
Does the calculator show a typical UK price?
No. It adds up your quoted figures for the quantity you choose. Published provider examples, where supplied, are identified separately and are not a national average.
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