Consumer Unit Upgrades and House Rewire
Modern protection for your home. NICEIC-accredited installation across Essex and Greater London. Completion certificates provided.
What Wren Covers
Your Home's Electrical System, Brought Up To Standard.
Older fuse boards and deteriorating wiring are among the most common and most overlooked safety risks in domestic properties.
A consumer unit upgrade or full rewire brings your home up to current standards, protects against electric shock and fire, and gives you the documentation your insurer and conveyancer will ask for.
What Wren Covers
Your Home's Electrical System, Brought Up To Standard.
Older fuse boards and deteriorating wiring are among the most common and most overlooked safety risks in domestic properties.
A consumer unit upgrade or full rewire brings your home up to current standards, protects against electric shock and fire, and gives you the documentation your insurer and conveyancer will ask for.
01
Consumer Unit Upgrade.
We survey your existing installation before quoting. On the day, we install the new consumer unit, test the circuits, and complete the documentation. The work typically takes four to eight hours, depending on the size of the property.
01
Consumer Unit Upgrade.
We survey your existing installation before quoting. On the day, we install the new consumer unit, test the circuits, and complete the documentation. The work typically takes four to eight hours, depending on the size of the property.
02
Full House Rewire.
Most properties built before 1970 benefit from a full rewire. The work takes several days — we agree the programme before starting and keep you updated throughout. We make good on completion, filling and skimming as required. You receive a completion certificate and full test results.
02
Full House Rewire.
Most properties built before 1970 benefit from a full rewire. The work takes several days — we agree the programme before starting and keep you updated throughout. We make good on completion, filling and skimming as required. You receive a completion certificate and full test results.
03
Building Regulations Notification.
Consumer unit replacement and rewiring are notifiable under Part P of the Building Regulations. As a registered competent person scheme member, we self-certify and submit the notification on your behalf. You receive the completion certificate.
03
Building Regulations Notification.
Consumer unit replacement and rewiring are notifiable under Part P of the Building Regulations. As a registered competent person scheme member, we self-certify and submit the notification on your behalf. You receive the completion certificate.
04
The Paperwork Matters.
Completion certificates and test results are required when selling a property and for home insurance claims. We provide them as standard — not as an extra.
04
The Paperwork Matters.
Completion certificates and test results are required when selling a property and for home insurance claims. We provide them as standard — not as an extra.
03
Building Regulations Notification.
Consumer unit replacement and rewiring are notifiable under Part P of the Building Regulations. As a registered competent person scheme member, we self-certify and submit the notification on your behalf. You receive the completion certificate.
04
The Paperwork Matters.
Completion certificates and test results are required when selling a property and for home insurance claims. We provide them as standard — not as an extra.
FAQs
Got Questions?
We’re here to make Wren Electrical easy to understand.
Still got questions?
How much does a consumer unit upgrade cost in Essex?
Typically £400–£700.
How long does a consumer unit upgrade take?
How much does a house rewire cost in Essex?
How long does a house rewire take?
Do I need building control approval for a rewire?
How much does a consumer unit upgrade cost in Essex?
Typically £400–£700.
How long does a consumer unit upgrade take?
How much does a house rewire cost in Essex?
How long does a house rewire take?
Do I need building control approval for a rewire?
Ready for Safer
and Smarter Electrical Solutions?
© Copyright 2026. All Rights Reserved.
Ready for Safer
and Smarter Electrical Solutions?
© Copyright 2026. All Rights Reserved.
Ready for Safer
and Smarter Electrical Solutions?
© Copyright 2026. All Rights Reserved.