Deionno Electrical & Solar
Installers caught damaged roof tiles mid-job and organised a roofer before laying a single panel.
Named staff appear consistently across reviews spanning multiple years: Joe for complex quoting, Jake for sales, Lorenzo, Cooper, Max, and Curtis for installations, and Victoria for office coordination — the kind of staffing continuity that suggests you'll deal with the same people from quote to commissioning. The 50-review sample averages 4.8★, with recent reviews showing slightly more variation than earlier ones; the overwhelming majority are strongly positive, but it's worth asking upfront about equipment substitutions and confirming in writing exactly what brand and quantity of panels and batteries are specified in your contract.
Their work
What it's like working with them
Based on a sample of Google reviews (484 total)
What they help with
Based on what their customers hired them for
How they stack up
Context from 304 solar panel installations in Gawler
Credentials & background
Sourced from 5 public records so you don't have to look them up yourself
About Deionno Electrical & Solar
Joe Deionno leads this licensed electrical and solar company, personally handling complex consultations — customers frequently note he visits after hours, removes his shoes at the door, and works through off-grid and whole-home backup configurations that other installers won't touch. Jake Turner is the sales specialist customers call out by name for patient, pressure-free explanations, including sitting with elderly clients and repeating technical details as many times as needed. On the tools, Lorenzo, Cooper, Max, and Curtis each appear across multiple reviews as the lead installer names — employees rather than subcontractors, which reviewers explicitly flag as the reason crews aren't rushing to the next job. The company handles everything from single battery retrofits to 44-panel, 19.4kW systems with EV chargers and new switchboards over multi-day installs, and also takes on off-grid rural South Australian properties that metropolitan providers decline. Admin (Victoria is named repeatedly) sends scheduling updates, follow-up emails after completion, and responds quickly to post-install queries — a level of back-office support that stands out in a trade category where communication typically drops off after payment. The installation crews are consistently described as catching problems others would have ignored — one team spotted damaged roof tiles and organised a roofer before continuing, another installed a protective bollard around a battery that the customer hadn't thought to request.
Best for: whole-home solar and battery installations requiring careful system design, off-grid or complex rural SA properties, homeowners adding EV charging or switchboard upgrades alongside solar, and customers who want employed (not subcontracted) crews and thorough post-install handover.
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Claim This Profile — Free →Common questions about Deionno Electrical & Solar
Does Deionno Electrical & Solar handle off-grid installations in rural South Australia?+
Yes — multiple reviews specifically mention off-grid and country SA installs that other providers declined to take on. Joe personally visits for complex site assessments, including properties with unusual configurations. One reviewer described a challenging rural off-grid setup completed with minimal disruption. If you're outside metro Adelaide, it's worth contacting them directly to confirm coverage for your area.
Who will I be dealing with at Deionno — owner, sales rep, or subcontractors?+
Joe Deionno typically handles complex quoting and site visits; Jake Turner and Curtis are the named sales consultants across many reviews. Installation crews — Lorenzo, Cooper, Max, and Val among others — are employed directly by the company, not subcontracted, which reviewers say means they're not rushing to their next job. Victoria is the admin contact customers mention for scheduling, updates, and post-install queries. You're likely to deal with consistent, named staff throughout.
What size solar and battery systems does Deionno typically install?+
Reviews mention a wide range: small battery-only retrofits, 13–13.2kW solar systems, and a 19.4kW system with 44 panels, a battery, EV charger, and new switchboard installed over three days. They work on residential new builds, existing homes, and commercial properties. Sungrow inverters and batteries appear repeatedly in reviews, alongside other quality brands — confirm the specific equipment in your quote before signing.
How does Deionno handle the handover once installation is complete?+
Handover is a consistent theme across reviews: installers walk customers through the monitoring app on their phone, label the meter box with emergency information, show photos of panel placement on the roof, and explain system controls in detail. The admin team typically sends a follow-up email after installation to check everything is running correctly. One reviewer noted crews clean up better than when they arrived — rubbish removal is standard.
What should I clarify upfront before committing to a quote?+
Get the exact panel brand, panel count, inverter model, and battery specifications written into your contract before signing — one reviewer found a panel brand was substituted without prior notice, even though the kWh rating was equivalent. Also clarify in writing whether any additional costs apply for associated trades like plumbing (relevant if replacing a hot water system). Most customers report pricing as competitive, not the cheapest, but transparent — the main risk flagged is equipment detail, not pricing surprises.