GCM Maintenance Services
One electrician handles everything from bar lighting to 10kW solar and battery storage — and customers keep sending friends his way.
What stands out across those 4 reviews is that customers aren't just satisfied with individual jobs; they're actively referring Graham to friends and returning to him across different project types, from basic domestic wiring to a full 10kW solar, battery, and generator integration. The complexity of work mentioned in reviews — particularly industrial UPS setups and generator changeover switching — suggests Graham's electrical licence covers commercial and higher-voltage work, which is worth confirming directly if your project sits outside standard residential scope. If you're looking for a Toowoomba electrician who can handle solar and battery storage as part of a broader home energy setup rather than as a standalone product sale, the evidence here — limited as it is — points in the right direction.
Their work
What it's like working with them
Based on a sample of Google reviews (4 total)
“sorted out our faulty inverter for our solar”
What they help with
Based on what their customers hired them for
How they stack up
Context from 451 solar panel installations in Toowoomba
Credentials & background
Sourced from 5 public records so you don't have to look them up yourself
About GCM Maintenance Services
Graham, the sole operator behind GCM, handles a notably broad electrical scope — from residential fit-outs like ceiling fans and LED retrofits through to complex energy setups including 10kW solar installs, 15kWh battery storage, and industrial UPS systems with generator switchover circuitry. That range matters because most domestic sparkies stop well short of battery storage and generator integration, so Graham can design and install a full off-grid-capable system rather than hand the job off partway through. Customers point specifically to the care he takes with aesthetics during installation — not just getting the job done, but making sure the final product looks right, which sets him apart on exposed-beam and deck work where finished appearance counts. On the solar side, he's also shown the capacity to diagnose and repair faulty inverters rather than simply recommend replacement, which could save homeowners a significant call-out cost. As a sole trader, you're booking Graham directly — not a rotating roster of sub-contractors — and reviewers consistently describe him as prompt, reasonably priced, and happy to talk through the technical side of what he's doing. He appears well suited to Toowoomba homeowners who want one trusted electrician across both everyday domestic work and larger energy infrastructure projects.
Best for: homeowners wanting a full solar-plus-battery-plus-generator system designed and installed by one electrician, Toowoomba residents needing ongoing domestic electrical work across multiple projects, and anyone with an underperforming solar system who needs inverter diagnosis rather than a straight replacement.
Location
Often needed together
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Claim This Profile — Free →Common questions about GCM Maintenance Services
What kinds of solar and energy work does GCM Maintenance Services do?+
Based on reviews, Graham has completed a 10kW solar install alongside a 15kWh battery system and an industrial UPS setup with external generator feed-in and changeover circuit breakers — all as part of a single integrated project. He's also diagnosed and repaired a faulty inverter for an existing solar system, which is useful if your solar is underperforming rather than needing a full replacement. This suggests capability beyond basic panel installation, though with only 4 reviews to draw from, it's worth having a direct conversation with Graham about the specific scope of your project before committing.
What do customers say about Graham's pricing?+
Three of the four available reviews mention pricing positively — one describes GCM as 'reasonably priced,' another says Graham 'gave us a great price,' and a third customer has continued using him across multiple projects over an extended period, which suggests ongoing satisfaction with cost. No reviews raise any concern about pricing or unexpected charges. As always with electrical work, it's worth getting a written quote before work begins, particularly for complex energy system installs where scope can vary.
Is GCM primarily a solar business or a general electrician?+
Reviews describe Graham doing a wide range of electrical work beyond solar — including outdoor deck wiring, new indoor room circuits, ceiling fan retrofits, LED lighting upgrades, and bar lighting on exposed beams. Solar and battery storage appear to be one part of a broader electrical service rather than an exclusive focus. If you need an electrician who can handle both an energy system install and ongoing domestic work through the same tradie, that's broadly what customers describe using him for.
Does Graham work alone or with a team?+
GCM is registered as a sole trader, meaning Graham is the primary operator. One reviewer does reference 'the team at GCM' when describing a multi-component installation project, so it's possible he brings in additional help on larger jobs — but you'd want to confirm this directly. What customers consistently note is that dealing with Graham means consistent, direct communication rather than being passed between different crew members.
What areas around Toowoomba does GCM Maintenance Services cover?+
GCM is based in Toowoomba City, QLD, and reviews don't explicitly mention specific suburbs or a defined service radius. Reviews don't raise any issue with travel or call-out fees for local jobs, but the coverage area for regional or outer Toowoomba locations isn't confirmed in the available data. It's best to call Graham directly to check whether your address falls within his regular working area.