What we do
Coulomb provides innovative electrical design, installation and repairs and is focused on providing professional knowledge and expertise, together with reliability.
Top of the South
Nelson/Tasman/Marlborough
Services include supply, sourcing and installation of systems and components, together with providing the initial consultation for boats, caravans, buses, mobile homes and any other marine or RV related vehicle.
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Properties
Fully qualified, with the skill and experience to work on commercial and industrial projects, as well as residential properties.

Design
We research with emphasis on the project design to provide creative and effective design projects.

Motor Homes
Professional company to provide motorhome electrical conversions, modifications and repair.

Marine
Wide ranges of Electrical Services relative to the Marine industry with customised solutions.

Off-Grid
Power and comfort off-grid can be challenging but we can offer totally professional services from quotes, to design and installation.

Automation
We work with our clients every step of the way from design, installation and then most importantly, showing you how it works.
Electrical Products
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