Motorhome Electrical Services
Power. Comfort. Safety. Wherever the road takes you!
At HMB Marine Electrical, we know how important a reliable electrical system is to the motorhome lifestyle. Whether you're plugged in at a campground, parked up at a freedom camping spot, or travelling off-grid, your electrical setup needs to work safely, efficiently, and without surprises.
We bring our marine-grade expertise to your home on wheels, offering professional, compliant, and fully customised motorhome electrical solutions.
What Makes Motorhome Electrical Different?
Motorhomes run two separate electrical systems:
Vehicle (Starter) Battery: Powers the engine and essential vehicle functions.
House (Leisure) Battery: Runs lighting, appliances, water pumps, fans, and entertainment systems in the living area.
Most motorhomes use a mix of:
12V DC for everyday use off-grid
240V AC (mains power) when connected to mains at a campground
Alternative power sources like solar panels and alternator charging for self-sufficiency
We’re here to keep everything running smoothly, and safely, wherever you’re headed.
Our Services
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Stay legal and safe with full EWOF inspections and certification. Required every four years or after any major electrical work.
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We test, maintain, and replace both your starter and house batteries. We also install battery monitoring systems so you can keep track of your power usage.
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Go further off-grid with reliable solar setups, inverter installations, and alternator or shore power charging system checks.
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Fridges, water pumps, microwaves, lights, hobs — if it runs on electricity, we can install it, maintain it, or fix it.
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Upgrade to energy-efficient LED lighting or add extra USB or power outlets (12V and 240V) to make your setup more usable.
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Planning a refit or building from scratch? We design smart, safe systems tailored to your power needs — complete with wiring diagrams and load calculations.
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We install and service electric and diesel heaters, as well as electric and LPG hot water systems.
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From tripping breakers to dead outlets, burning smells to battery drain — we’ll find the problem and fix it fast.
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We provide Code of Compliance certificates for all new installs or upgrades and keep full records of all work done for peace of mind.
Why Choose HMB Marine Electrical?
We’re known Auckland-wide for our marine electrical expertise — and we bring that same high standard to your motorhome. With us, you get:
Qualified and experienced technicians
Practical, real-world advice
Professional-grade installations
NZ-compliant certifications and safety checks
Ready for more freedom, more comfort, and fewer power problems?
Get in touch with HMB Marine Electrical — and let’s power your next adventure.