A safe and up-to-date electrical system

Distribution Board Modifications

When new appliances, electric vehicle charging or extensive lighting are added to a home, the old distribution board may no longer be sufficient. We upgrade and expand distribution boards in compliance with regulations in Helsinki, Espoo, Vantaa and across the Uusimaa region in cooperation with authorised electrical contractors.
Free assessment with 24h response
Fixed price with no surprises
Over 20 years of local experience
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20+ years of experience

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Distribution Board Modifications

Luotetut kumppanit

STARK yhteistyökumppani
OP-Pohjola rahoituskumppani
Vastuu - Luotettava kumppani
Distribution board modifications - safe upgrade

Distribution Board Modifications - Safe Upgrade

We upgrade and modify distribution boards professionally. Safety and regulatory compliance come first.

  • Fuse and RCD upgrades
  • Adding circuits and load balancing
  • Distribution board expansion or replacement
  • Full documentation and inspection of all work

Modern appliances demand more power

Modern requirements

Electric vehicles, heat pumps and electronics require an up-to-date distribution board.

Residual-current devices

We ensure all circuits have appropriate protective devices.

Load balancing

We add new circuits or redistribute loads evenly as needed.

Regulatory compliance

All work is carried out in accordance with electrical safety regulations.

Distribution board modification step by step

A simple and clear process for professional renovation

Survey

Survey

We review the current board, fuses and load distribution.

Needs assessment

Needs assessment

We determine whether an expansion is sufficient or a new board is needed.

Modification work

Modification work

We add RCDs and new circuits as required.

Testing and documentation

Testing and documentation

We test the protective devices and update the electrical drawings.

Completed projects

Examples of successful distribution board projects

Distribution board modifications and upgrades in the Helsinki metropolitan area

The distribution board is the heart of a home's electrical system, distributing power to different circuits and protecting the property from overload, short circuits and earth faults. In older apartment blocks and detached houses from the 1960s to 1980s, distribution boards were designed for an era when household electricity consumption was a fraction of today's level. Modern demands — electric vehicle charging, heat pumps, induction hobs, air-source heat pumps and numerous small electronic devices — place loads on old boards that they were never designed to handle. Distribution board modification work is licensed electrical work that may only be carried out by an authorised electrical contractor. Kevyt Remppa organises the entire process on a turnkey basis: from needs assessment through planning, implementation and final inspection. All modifications are documented and electrical drawings are updated.

When does a distribution board need upgrading?

The most typical signs that an upgrade is needed include repeatedly tripping fuses, overheating fuses, old rewirable fuses without residual-current protection, or a situation where there are no spare circuits for new appliances. Installing a home EV charging station almost always requires distribution board modifications, as the charger needs its own dedicated circuit with an adequate fuse rating. Similarly, a sauna heater being replaced during renovation may require a larger fuse and thicker cabling. Upgrading the distribution board is an investment that improves home electrical safety and increases property value. Modern MCBs and RCDs react to faults in milliseconds, significantly reducing the risk of fire and electric shock.

Our distribution board services in Helsinki, Espoo and Vantaa

We carry out distribution board modifications throughout the Helsinki metropolitan area and neighbouring municipalities. The service complements other electrical work perfectly — for example, during a kitchen or bathroom renovation it makes sense to also upgrade the distribution board to meet the new requirements. We always start with a free survey visit where we assess the condition of the current board and draw up a plan for the necessary modifications.

Residual-current protection and modern protective devices

Under current electrical safety regulations, all socket outlets in new installations must be fitted with residual-current protection. When modifying a distribution board, it is natural to also upgrade the protection of existing circuits to the current standard. During socket outlet installations and light fitting installations, we also ensure that every circuit is correctly rated and protected. Arc fault detection devices (AFDDs) are the latest protective device innovation, detecting arc faults caused by defective connections and cutting the power before damage can occur.

Frequently asked questions

Find answers to the most common questions here. Don't hesitate to contact us if you can't find an answer!

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Do you need distribution board modifications?

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