Custom 12V & 24V Power Systems
Coast Custom 12 Volt specialises in custom 12V and 24V electrical systems for 4WDs, caravans, motorhomes, campers, utes, vans, trailers and commercial vehicles throughout Warwick, Toowoomba and the Southern Downs. From dual battery systems and solar installations to complete off-grid power solutions, every system is designed to suit your vehicle, your requirements and the way you use it.
Every installation is completed to AS/NZS 3001.2:2022 standards, delivering safe, compliant and reliable power you can depend on.
Warwick and Toowoomba QLD
Built Around Your Adventures
At Coast Custom 12 Volt, we specialise in designing and installing custom 12V and 24V electrical systems for 4WDs, caravans, campers, motorhomes, vans, utes and trailers throughout the Southern Downs, Toowoomba and surrounding regions.
No two customers travel the same, so no two systems should be the same. Every installation is designed around your vehicle, the appliances you want to run and how you use them, delivering a reliable power system that’s built for your next adventure.
EXCELLENT Based on 72 reviews Posted on Google Glynis CraigTrustindex verifies that the original source of the review is Google. 10/10 for everything! Nathan drove to woop woop to install our bushman fridge, new battery system & fans. Last week in 42 degrees our fridge was lovely and cold and the fans were a godsend! We will use Coast Custom 12 Volt for anything we need in our offgrid set up !Posted on Google Shane DINEENTrustindex verifies that the original source of the review is Google. Nathan provided great advice and a quality install of an under floor auxiliary battery system into our Prado 250. Nathan listened to our requirements, provided good advice and designed a quality system to suit. We highly recommend Coast Custom 12 Volt.Posted on Google Grinners and GrumblesTrustindex verifies that the original source of the review is Google. Our experience with Coast Custom 12 Volt was excellent. They completed the solar panel installation and battery relocation with precision, and their customer service was top-notch. We would definitely recommend them to others and engage their services again in the future. Our wiring looked like a pile of spagetti until Nathan fixed it all upPosted on Google Jennifer KnustTrustindex verifies that the original source of the review is Google. Nathan installed 2 x 12 volts systems, one in our Motorhome and one in the trailer. Not only is the system fantastic and we never have to worry about our power, but he also fixed faults we had with our old system. The batteries have 7 years warranty, the upgrade to our panels keep the batteries topped up which really helps on cloudy and rainy days. We recommend Nathan to everyone, and he is so easy to deal with. Jenni & StevePosted on Google John MurdochTrustindex verifies that the original source of the review is Google. Nathan is a wonderful source of knowledge and Ideas. There is no pressure and helped Improve the efficiency of our stock caravans solar charging system. Work and components are 1st class. He is happy to do the smallest job at a sensible price. It's a relief to have a 5 star technician serviceing the Warwick and Toowoomba regions.Posted on Google peter petersTrustindex verifies that the original source of the review is Google. Right from the start from my first phone call to Nathan I was impressed with how he handled himself, from his first visit to look & listen to what I had envisaged (to see if it were possible) to completing 2 jobs for me. His communication skills are excellent, he turned up when he said he would & completed our jobs in a timely fashion. I found Nathan to be very knowledgeable, easy going using high end products & materials such as Victron and Australian made batteries from Powerpaul in our Bushtracker caravan. Nathan completely overhauled our caravan with a complete new system, amazed how he fitted everything I asked for so neat and tidy, replacing old existing solar panels, adding more solar panels, and the 12 volt equipment for us live totally off grid running the air conditioner, induction cooking etc. Nathan also worked on our car adding cables to the rear so we can plug in our Starlink. The whole system worked perfectly as we have just returned from a 4 month trip to remote WA without plugging into any mains power. I would highly recommend Coast Custom 12Volt and Nathan for his easy going flexible nature, his professionalism, communication skills, neatness of the job and he cleaned up after himself leaving no mess.Posted on Google Peter HebbeTrustindex verifies that the original source of the review is Google. Great communication and explanation of our solar system. Quality product and neat installation. Great value for money. I won't use anyone else for my solar needs 👍👍Posted on Google Derek HooperTrustindex verifies that the original source of the review is Google. Great work and great price. A tidy tradie what a bonus. Always good valuePosted on Google Michael JohnsTrustindex verifies that the original source of the review is Google. Nathan has done a couple of jobs for us so far and I would highly recommend him to anyone. Apart from being exceptional and knowledgeable at his craft, he is a genuine bloke who is happy to give advice and step you through what you need. I wouldn’t go to anyone else.
Off-Grid Power
Off-Grid Power Solutions
A properly designed power system gives you the confidence to travel further and stay off-grid longer. Whether it’s keeping your fridge cold, running Starlink, charging cameras and batteries, powering an inverter or simply enjoying the comforts of home while camping, we’ll design a system that delivers dependable power wherever your adventures take you.
Every installation is correctly sized for your power requirements, ensuring reliable performance without unnecessary complexity or oversized components.
The Coast Custom Difference
Built Properly From The Start
The best electrical systems begin with good planning, not pre-built packages. Every installation is carefully designed using proven components, correct cable sizing, quality circuit protection and neat workmanship that makes future servicing simple. Our goal is straightforward: deliver reliable electrical systems that perform when you need them most and continue doing so for years to come.