Old fuse boxes replaced with modern RCD-protected consumer units. Common in pre-1990s properties and increasingly required by home insurers. Submit a request and we'll route your enquiry to a qualified local electrician.
Many UK properties — particularly those built before 1990 — still have older fuse boxes without modern RCD protection. These are increasingly flagged by insurance companies, surveyors and mortgage lenders.
Pre-1990s properties commonly have fuse boxes without Residual Current Devices (RCDs). RCDs provide critical protection against electric shock and fire. Most insurers now require them.
Many home insurers will not renew a policy or will exclude electrical damage claims if a property has an outdated consumer unit. A replacement provides documented compliance.
Surveyors regularly flag outdated consumer units as a condition of sale or mortgage approval. A replacement resolves this issue and provides a completion certificate.
Old fuse boxes that trip frequently or fail to hold breakers are often at the end of their serviceable life. Replacement resolves the root cause rather than treating symptoms.
Adding EV chargers, solar systems, home offices or additional circuits requires adequate consumer unit capacity. An upgrade is often needed before new circuits can be safely added.
All consumer unit replacements should come with a completion certificate confirming compliance with Part P of the Building Regulations. Confirm this with your electrician before work begins.
Request a consumer unit replacement quote across any of our five service areas. Each location is covered by qualified local electricians in the TradeSpan network.
Fill in the form and we'll route your request to a qualified local electrician. We aim to respond quickly during business hours.
Your Details
By submitting, you agree that TradeSpan may contact you and share your enquiry with a suitable local electrician for quote purposes only.How long does a consumer unit replacement take?
A straightforward replacement typically takes half a day to a full day. The electrician will need to turn off power to the property for part of this time.
Do I need a new consumer unit?
If your current fuse box does not have RCD protection, is over 25 years old, trips frequently, or has been flagged by a surveyor or insurer — a replacement is likely advisable.
Is a consumer unit replacement Building Regulations work?
Yes. Consumer unit replacement is notifiable work under Part P of the Building Regulations. It must be carried out by a qualified electrician who can self-certify the work or notify your local authority.
Will I need to redecorate after a consumer unit replacement?
In most cases no. The new unit replaces the old in the same location. If rewiring is required at the same time, some surface work may be needed.
Can I get a grant for a consumer unit upgrade?
Some local authorities and schemes offer funding for electrical upgrades in older properties. Ask your electrician or check with your local council.
How much does a consumer unit replacement cost?
Pricing is agreed directly between you and the electrician before work begins. A written quote is provided in advance. Typical costs vary based on the number of circuits and property size.
Are You a Qualified Electrician?
TradeSpan routes quote requests to qualified local electricians covering our service areas. If you hold relevant qualifications and insurance, we'd like to hear from you.