Consumer Unit Upgrades in London
Professional consumer unit replacements in London and surrounding areas carried out to BS 7671 standards with RCBO protection, SPD installation and full certification included.
• 18th Edition compliant upgrades
• RCBO & SPD protection
• Electrical Installation Certificate issued
• Testing & inspection included
• Domestic & landlord properties
Upgrade your property with a modern 18th Edition consumer unit installation carried out to BS 7671 standards.
Older electrical installations may also require partial or full house rewiring services for improved safety and compliance
VoltHeat Ltd provides professional fuse box replacements with RCBO & SPD protection for improved electrical safety, reliability and compliance.
All installations include full testing, certification and expert workmanship suitable for homeowners, landlords and property renovations across London.
• RCBO Protection
• Surge Protection Device (SPD)
• Electrical Installation Certificate Included
• Fully Tested & Inspected
• Domestic & Landlord Properties
• Clean & Professional Installation
Why Choose VoltHeat Ltd?
✔ NAPIT Registered
✔ TrustMark Registered
✔ 18th Edition Compliant
✔ RCBO & SPD Protection
✔ Full Testing & Certification
✔ Professional & Clean Installation
✔ Domestic & Landlord Specialists
✔ Reliable Service Across London
What’s Included With Your Consumer Unit Upgrade
Why Upgrade Your Consumer Unit?
Modern consumer units provide improved electrical safety, better circuit protection and compliance with current BS 7671 regulations.
Older fuse boxes may not include RCBO protection or Surge Protection Devices (SPD), which are recommended for modern installations
Upgrading your consumer unit improves safety, reliability and compliance for homeowners, landlords and property renovations across London.
✓ New 18th Edition consumer unit
✓ RCBO protection for all circuits
✓ Surge Protection Device (SPD)
✓ Full testing & inspection
✓ Electrical Installation Certificate issued
✓ Circuit labelling & identification
✓ Professional installation & clean finish
Signs You May Need a Consumer Unit Upgrade
Older fuse boxes and consumer units may no longer provide the level of electrical protection required for modern homes and current BS 7671 wiring regulations.
Many older installations were designed before the increased use of modern appliances and electrical equipment commonly found in properties today. Over time, electrical systems can become overloaded, outdated or unsuitable for modern electrical demands, which may increase the risk of electric shock, overheating or fire hazards.
Common signs that your consumer unit may require upgrading include frequent tripping, flickering lights, overheating components, burning smells, damaged switches, old rewireable fuses, lack of RCD protection or signs of poor previous alterations.
Some older consumer units may still contain Type AC RCD protection, which is no longer considered suitable for certain modern electrical equipment and electronic devices. Current regulations generally recommend Type A RCD or RCBO protection for improved safety and compatibility with modern loads such as washing machines, induction hobs, EV chargers, LED lighting, electronic power supplies and other equipment commonly installed in domestic properties.
Modern consumer unit upgrades in London provide improved electrical safety, individual circuit protection, better fault detection and improved compliance with current electrical standards. RCBO protection helps isolate faults to individual circuits, reducing nuisance tripping and improving reliability throughout the installation.
Modern installations may also include Surge Protection Devices (SPD), which help protect sensitive appliances and electronic equipment from transient overvoltages and electrical surges caused by switching events or external influences.
For landlords, homeowners and property renovation projects, upgrading an older consumer unit can help improve safety, reliability and overall confidence in the condition of the electrical installation.
In some cases, inspection and testing may also identify older wiring systems that could require partial or full house rewiring services to ensure the installation remains safe, compliant and suitable for continued use.
Benefits of RCBO & SPD Protection
Modern consumer unit upgrades in London commonly include RCBO and Surge Protection Device (SPD) protection to improve electrical safety, reliability and compliance with current BS 7671 regulations.
Older fuse boxes and split-load consumer units may not provide the same level of protection expected in modern electrical installations. Many older installations were designed before the increased use of electronic equipment, modern appliances and high electrical loads commonly found in domestic properties today.
RCBO protection provides individual protection for each circuit within the installation. Unlike older arrangements where multiple circuits may share a single RCD, RCBO devices help isolate faults individually, reducing unnecessary loss of power across the property and improving fault identification.
This means that if a fault develops on one circuit, other circuits within the installation can often continue operating normally, helping reduce inconvenience and improving overall reliability for homeowners and landlords.
Modern regulations generally recommend Type A RCBO protection, which is designed to provide improved compatibility with modern electrical equipment such as washing machines, induction hobs, EV chargers, LED lighting, boilers, electronic power supplies and appliances containing electronic components.
Surge Protection Devices (SPD) are also recommended for many modern installations. SPD protection helps reduce the risk of damage caused by transient overvoltages and electrical surges, which may affect sensitive electronic equipment and appliances within the property.
Electrical surges can occur from switching events within the installation or from external influences affecting the electrical supply. Modern SPD devices help provide an additional layer of protection for televisions, computers, broadband equipment, kitchen appliances, heating controls and other valuable electrical equipment.
Consumer unit upgrades with RCBO and SPD protection provide improved safety, better fault protection, increased reliability and improved compliance for domestic properties, landlords and renovation projects across London and surrounding areas.
Our Consumer Unit Installation Process
All consumer unit upgrades are carried out professionally by qualified and NAPIT registered electricians in accordance with current BS 7671 wiring regulations.
Before any installation work is carried out, the existing electrical installation is inspected and assessed to determine the overall condition of the system and identify any visible defects, signs of overheating, damaged accessories or potential safety concerns.
Inspection and testing are an important part of the process, as older installations may sometimes contain faults or wiring issues that require further attention before a consumer unit upgrade can be safely completed.
The installation process includes safe isolation procedures, removal of the existing fuse box or consumer unit, installation of the new RCBO consumer unit and Surge Protection Device (SPD) protection where required.
All circuits are identified, labelled and tested to help ensure correct operation and compliance with current standards. Electrical testing includes verification of continuity, insulation resistance, polarity, earth fault loop impedance, RCD testing and other required checks in accordance with BS 7671 requirements.
Where necessary, recommendations may also be provided regarding older wiring systems, bonding arrangements or additional remedial works required to improve the overall safety and compliance of the installation.
Upon completion, all consumer unit upgrades include full testing, inspection and certification, with Electrical Installation Certificates issued for the completed works.
VoltHeat Electrical & Heating provides professional consumer unit upgrades in London for homeowners, landlords and property renovation projects requiring reliable and compliant electrical installations.
Why Choose VoltHeat Electrical & Heating
VoltHeat Electrical & Heating provides professional consumer unit upgrades in London carried out by qualified and NAPIT registered electricians committed to safe, compliant and high-quality workmanship.
We understand that replacing a consumer unit is an important investment in the safety and reliability of your property’s electrical installation. Our approach focuses on carrying out installations professionally, safely and in accordance with current BS 7671 wiring regulations.
All consumer unit upgrades include inspection, testing and certification upon completion, helping provide confidence that the installation has been tested and verified correctly.
We work with homeowners, landlords, property developers and renovation projects requiring reliable electrical services and professional standards throughout the installation process.
Our installations commonly include modern RCBO and Surge Protection Device (SPD) protection to improve electrical safety, individual circuit protection and compatibility with modern electrical equipment and appliances.
We aim to provide clear communication, professional workmanship and reliable service from initial inspection through to final testing and certification.
Reasons customers choose VoltHeat Electrical & Heating include:
• NAPIT Registered Electricians
• BS 7671 Compliant Installations
• RCBO & SPD Protection
• Inspection, Testing & Certification Included
• Professional & Reliable Workmanship
• Landlord & Domestic Services
• Fully Insured Electrical Services
• Same-Day Certification Available
• Clean & Professional Installations
• Coverage Across London & Surrounding Areas
Whether replacing an outdated fuse board, upgrading for additional safety or modernising an older installation, VoltHeat Electrical & Heating provides professional consumer unit upgrades designed to improve safety, reliability and compliance for domestic properties across London and surrounding areas.
Areas We Cover
VoltHeat Electrical & Heating provides professional consumer unit upgrades in London and surrounding areas for homeowners, landlords, property developers and renovation projects requiring safe and compliant electrical installations.
We cover Barnet, North London, Luton and surrounding areas, providing modern fuse box replacements, RCBO upgrades, Surge Protection Device (SPD) installation, inspection, testing and certification services.
Our services are suitable for domestic properties requiring improved electrical safety, modernisation of older installations, landlord compliance works or electrical upgrades during property refurbishments and renovations.
Many older properties across London may still contain outdated fuse boards, older split-load consumer units or installations lacking modern RCBO and Type A RCD protection. Upgrading older consumer units can help improve safety, reliability and compatibility with modern electrical demands and appliances commonly used in today’s homes.
We work with a wide range of domestic properties including flats, apartments, terraced houses, semi-detached properties, detached homes and rental properties requiring professional electrical services and certification.
VoltHeat Electrical & Heating aims to provide professional workmanship, clear communication and reliable electrical services from initial inspection through to final testing and certification.
Alongside consumer unit upgrades in London, we also provide additional electrical services including EICR inspections, landlord certificates, fault finding, socket installations, lighting installations, extractor fan installations and house rewiring services.
Our goal is to help homeowners and landlords improve the safety, condition and reliability of their electrical installations with professional and compliant electrical work carried out to current BS 7671 standards.
Frequently Asked Questions
How much does a consumer unit upgrade cost?
Consumer unit upgrades in London typically start from £380 depending on the size of the installation, number of circuits, condition of the existing wiring and whether any additional remedial works are required following inspection and testing.
Older installations may sometimes require additional work such as upgrading bonding arrangements, correcting faults or carrying out partial rewiring before a new consumer unit can be safely installed.
All consumer unit upgrades include installation, inspection, testing and certification upon completion in accordance with current BS 7671 wiring regulations.
Is inspection and testing included with the installation?
Yes. All consumer unit upgrades include inspection, testing and certification upon completion in accordance with current BS 7671 wiring regulations.
Inspection and testing are an important part of the installation process, as older electrical installations may sometimes contain faults, damaged accessories, inadequate bonding arrangements or wiring issues that require further attention before a new consumer unit can be safely installed.
Electrical testing helps verify the condition of the installation and confirm that circuits operate safely and correctly following the upgrade.
Testing commonly includes continuity testing, insulation resistance testing, polarity verification, earth fault loop impedance testing, RCD or RCBO testing and verification of protective devices in accordance with BS 7671 requirements.
Electrical Installation Certificates are issued upon completion together with inspection and testing results where applicable.
Do I need rewiring before replacing my consumer unit?
Not always. Many electrical installations can safely accommodate a new consumer unit without requiring a full house rewire.
However, some older properties may contain outdated wiring systems, damaged cables, poor previous alterations or faults identified during inspection and testing that may require remedial work or partial rewiring before a new consumer unit can be safely installed and certified.
Inspection and testing are important to help determine the overall condition of the existing installation and whether the wiring system is suitable for continued use with a modern RCBO consumer unit.
In some cases, older wiring systems may not comply with current regulations but can still remain in service if found to be safe and satisfactory following inspection and testing.
Where issues are identified, recommendations may be provided regarding remedial works, circuit improvements, bonding upgrades or partial/full house rewiring services to improve safety, reliability and compliance with current BS 7671 standards.
How long does a consumer unit upgrade take?
Most domestic consumer unit upgrades can often be completed within one working day depending on the size and condition of the electrical installation and whether additional remedial works are required following inspection and testing.
The overall installation time can vary depending on factors such as the number of circuits, accessibility of the existing consumer unit, condition of the wiring system, bonding arrangements and any faults identified during the inspection process.
Older installations may sometimes require additional work before the new consumer unit can be safely installed and certified. This may include correcting faults, replacing damaged accessories, upgrading bonding conductors or carrying out partial rewiring works where necessary.
All consumer unit upgrades are completed with inspection, testing and certification in accordance with current BS 7671 wiring regulations to help ensure the installation operates safely and correctly following completion of the works.
Will I receive certification after the work is completed?
Yes. All consumer unit upgrades include inspection, testing and certification upon completion in accordance with current BS 7671 wiring regulations.
Following completion of the installation, Electrical Installation Certificates are issued together with inspection and testing results where applicable.
Certification confirms that the installation has been inspected, tested and verified in accordance with current electrical safety requirements at the time of testing.
Inspection and testing form an important part of the installation process and help verify continuity, insulation resistance, polarity, earth fault loop impedance, RCD or RCBO operation and overall circuit safety.
VoltHeat Electrical & Heating provides professionally tested and certified consumer unit upgrades for homeowners, landlords and property renovation projects across London and surrounding areas.
What are the benefits of upgrading an older fuse box?
Upgrading an older fuse box or consumer unit can significantly improve the safety, reliability and overall condition of a property’s electrical installation.
Many older fuse boards were installed before the increased use of modern electrical equipment and may not provide the level of protection expected under current BS 7671 wiring regulations.
Modern consumer unit upgrades commonly include RCBO and Surge Protection Device (SPD) protection, helping provide improved fault protection, individual circuit protection and additional protection for sensitive electronic equipment and appliances.
Older installations may still contain outdated rewireable fuses or Type AC RCD protection which may not always be suitable for certain modern electrical loads and electronic devices commonly used in domestic properties today.
Modern Type A RCBO protection is generally recommended for improved compatibility with appliances such as washing machines, induction hobs, LED lighting, EV chargers, boilers and electronic power supplies.
Consumer unit upgrades can also help reduce nuisance tripping, improve fault identification and provide increased confidence in the condition and safety of the electrical installation for homeowners, landlords and property renovation projects.
All installations are completed with inspection, testing and certification to help ensure compliance with current electrical safety requirements.
Do modern regulations require Type A RCD protection?
Current BS 7671 wiring regulations generally recommend Type A RCD or RCBO protection for many modern electrical installations due to the increased use of electronic equipment and appliances commonly found in domestic properties.
Many older consumer units may still contain Type AC RCD protection, which was commonly installed in older electrical installations. However, Type AC devices may not always be suitable for certain modern electrical loads and electronic equipment that can produce pulsating DC residual currents during operation.
Modern appliances such as washing machines, induction hobs, EV chargers, LED lighting, boilers, inverter-controlled equipment and electronic power supplies may require improved compatibility provided by Type A protection devices.
Modern consumer unit upgrades commonly include Type A RCBO protection to improve safety, compatibility and compliance with current electrical standards.
Inspection and testing are carried out during consumer unit upgrades to help verify the suitability and safe operation of protective devices within the installation.
What is the difference between RCBO and RCD protection?
Traditional RCD devices are commonly designed to protect multiple circuits together within the electrical installation. In older split-load consumer units, a single RCD may protect several circuits at the same time.
This means that if a fault occurs on one circuit, power may be disconnected to multiple areas of the property, causing unnecessary inconvenience and making fault identification more difficult.
RCBO protection provides individual protection for each circuit within the consumer unit. Each circuit has its own combined overcurrent and residual current protection device, helping improve fault identification and reducing unnecessary loss of power across the installation.
If a fault develops on one circuit, other circuits can often continue operating normally, helping improve reliability and minimise disruption within the property.
Modern consumer unit upgrades commonly include Type A RCBO protection, which is generally recommended for improved compatibility with modern electrical equipment and appliances such as washing machines, induction hobs, LED lighting, boilers, EV chargers and electronic power supplies.
RCBO consumer units also help provide improved electrical safety, better circuit separation and improved compliance with current BS 7671 wiring regulations for domestic properties, landlords and renovation projects.
What is SPD protection and why is it important?
Surge Protection Devices (SPD) help protect electrical installations and sensitive electronic equipment from transient overvoltages and electrical surges.
Electrical surges can occur from switching events within the installation, changes in the electrical supply or external influences affecting the property’s electrical system.
Modern homes commonly contain expensive electronic equipment and appliances such as televisions, computers, broadband equipment, boilers, heating controls, LED lighting, kitchen appliances and charging equipment which may be more sensitive to electrical surges.
SPD protection helps reduce the risk of damage to these devices by limiting transient overvoltages before they can affect the installation and connected equipment.
Current BS 7671 wiring regulations recommend surge protection for many modern domestic installations unless a risk assessment determines it is not required.
Modern consumer unit upgrades commonly include SPD protection to improve electrical safety, provide additional protection for sensitive equipment and improve compliance with current electrical standards.
Installing SPD protection during a consumer unit upgrade can help provide increased reliability and additional protection for homeowners, landlords and property renovation projects.
Can landlords benefit from consumer unit upgrades?
Yes. Consumer unit upgrades can provide significant benefits for landlords by improving the safety, reliability and overall condition of the electrical installation within rental properties.
Many older rental properties may still contain outdated fuse boards, older split-load consumer units or installations lacking modern RCBO and Surge Protection Device (SPD) protection.
Upgrading an older consumer unit can help improve protection against electric shock, overloads and faults while also improving compatibility with modern electrical equipment and appliances commonly used by tenants.
Modern RCBO consumer units provide individual circuit protection, helping reduce nuisance tripping and improving fault identification within the installation. SPD protection can also help provide additional protection for sensitive electronic equipment and appliances within the property.
Landlords also benefit from improved compliance with current electrical safety requirements and recommendations associated with modern electrical installations.
Consumer unit upgrades are commonly carried out alongside EICR inspections, landlord electrical safety certificates and property refurbishment projects to help improve the overall safety and reliability of the installation.
All consumer unit upgrades include inspection, testing and certification upon completion in accordance with current BS 7671 wiring regulations.
Looking for a local electrician in Harrow? Visit our dedicated Electrician Harrow page for electrical repairs, EICRs, consumer unit upgrades, fault finding and emergency electrician services throughout Harrow and the surrounding areas.
We also provide local emergency electrician services in Harrow and surrounding areas, offering rapid response for power loss, tripping circuits, faulty consumer units and urgent electrical faults.