Talk through your use and plans
We discuss your bills, roof and future plans, such as an EV or heat pump. Detailed usage data, where available, helps us understand when you use power.
Based in Hamilton Hill Serving Fremantle & Perth metro
Tell us how you use power and what you want to change. Our Hamilton Hill team handles solar, batteries, heat pump hot water and existing-system service.
Start with the job you have in mind. If another part of the system matters, we can cover it in the same conversation.
Lower daytime power bills
Designed around your roof, current electricity use and future plans, including an EV or heat pump.
Learn moreUse more solar at night
Compare solar exports, evening use, tariffs and backup needs before choosing capacity.
Learn moreEfficient electric hot water
Tank capacity, location and run times matched to the household and existing services.
Learn moreHelp with an existing system
Start with the inverter error, monitoring screenshot and system age before arranging a visit.
Learn moreKnow the net price
See how STCs and federal or WA battery support change the installed price.
Learn moreComplex roof or system
Each quote is prepared by a solar expert with real installation experience, not a salesperson, so complex layouts are designed with performance in mind.
Learn moreNot sure which fits? Call 0401 537 654 or request a free quote.
Products
The roof, existing equipment, warranty requirements and product availability determine what appears on a quote.
Sigenergy · Sungrow · GoodWe · Fronius
Aiko · Trina Solar · JinkoSolar
iStore
Director Colin brings more than 20 years of solar installation experience to each project. That practical knowledge guides the work from the initial advice and design through to installation and commissioning.
The quote starts with your usage and property, then sets out the design, products and applicable incentives.
We discuss your bills, roof and future plans, such as an EV or heat pump. Detailed usage data, where available, helps us understand when you use power.
The quote identifies the proposed equipment, system size and current STC or battery discounts, with the net installed price.
Licensed electricians install and commission the system, set up monitoring where applicable and explain the handover.
Completed systems and installation details from Unisol jobs around Perth.
We are based in Hamilton Hill, serving Fremantle and the wider Perth metro.
Not sure we cover you? Call 0401 537 654 to check.
A sample of public customer reviews from homeowners in WA.
“Had a great experience installing our new 11kw solar system with the team at Unisol. Colin was extremely helpful and thorough throughout, making sure the installation and commissioning of our new system was completed to the highest standard. The team that installed led by Brendan were exceptionally professional and efficient as well. Have recommended to friends and family and will not hesitate to use them again, including for potential future installation of a battery.”Aaron Chiong
“We have just experienced UniSol's excellent service & advice. We could not be happier with our system. Colin never pressured us, gave us all the time we needed and patiently answered questions. Other quotes we received seemed to be from pushy salespeople but Colin gave us honest advice and was keen to ensure we got only what was right for us. Installation was quick (within 2weeks). Brendan and his team did an exceptionally neat job on the day. I have already recommended Colin and Unisol to friends and family and we will be back in touch when we are ready to install batteries!”Kate L
“We recently had solar panels installed by Colin, and we are extremely happy with the outcome. He spent a lot of time making sure the system was right for us, and when a few issues came up during installation, he took care of everything promptly and professionally. We now feel confident we have a solid and reliable system in place. While the price may be a little higher than some other suppliers, the quality of the workmanship and product absolutely makes it worth it. Highly recommended!”Yoann le Corre
We are family-owned and based in Hamilton Hill, WA. We install across Fremantle and the wider Perth metro.
We start with a conversation and the details needed for a clear quote. If the roof, switchboard or existing system needs an on-site assessment, we arrange a site visit before work proceeds.
Yes. We design solar-only and solar plus battery systems, including Tesla Powerwall. Battery capacity is based on solar exports, evening use, tariff and any backup requirement.
Yes. Unisol installs heat pump hot water systems and can assess service or repair needs on existing solar and battery systems. Send the system details or fault information with your enquiry.
Send your suburb, the service you need and any useful bill, fault or equipment details. We will tell you what comes next.
Tell us whether you need a quote, a heat pump, or help with an existing solar or battery system.
Mon to Fri 7:00 to 17:00