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Technaus

Updated 2026-09-05 · 3,383 reviewed · 221 listed · Scored from 358 Google reviews · How we rank ›

4.5(358) 81 composite score See reviews on Google ✓ Google-verified
Solar Hot Water SystemsResidential Solar Panel SystemsCommercial & Industrial SolarBattery Storage SystemsSolar Energy CompanySolar Inverters & ComponentsSolar Energy System ServiceSolar Panel Maintenance ServiceGovernment Rebate & STC Specialists
Technaus
Location
Perth
Services
Solar Hot Water Systems, Residential Solar Panel Systems, Commercial & Industrial Solar
Reviews
358
Ranking
#8 in Solar Hot Water Systems
Best for
Homeowners seeking a detailed, honest consultation before committing to solar or battery systems.

Core details are sourced from this business's Google Business Profile (checked 2026-09-05). Website-sourced details were fetched 2026-09-05.

What reviewers think

Chris and Harleigh earn consistent praise for detailed consultations and honest, pressure-free advice. Installation teams like Henry work cleanly and efficiently. Yet a small group report serious issues: botched wiring that tripled power bills, roof tile damage left unrepaired for months, forgotten paperwork blocking rebates, and water filters that did not improve quality. Response after problems is described as slow or dismissive.

The business states 18 years' experience and Clean Energy Council accreditation. Most reviewers see good equipment and real savings. The concern is installation execution and whether the company will stand behind mistakes fairly.

Praised for
  • knowledgeable, patient sales staff
  • polite, professional installers
  • thorough site assessments and no pressure
  • equipment performs well
Watch-outs
  • installation errors causing high bills
  • slow response and poor follow-up
  • incomplete paperwork and admin
  • poor water filtration results
knowledgeable-staffreliable-installationhonest-advicedelayed-installationgood-after-sales-supportno-follow-up-support
Best for: Homeowners seeking a detailed, honest consultation before committing to solar or battery systems.
Think twice if: Installation mistakes (incorrect wiring, roof damage) can take months to fix, and the company has been slow to contact customers after faults are reported.

Strengths

  • Sales team conducts on-site assessments with no sales pressure
  • Equipment performs well and delivers real bill savings
  • Installers are polite and work cleanly

Worth knowing

  • Chris and Harleigh named as consultants who provide thorough, pressure-free consultations
  • Henry and Jonathon named as installers
  • Battery capacity examples: 15 kWh
  • One customer reported 20%+ power performance drop within 2 years
  • One customer's bill rose from $250 to $700-$400 after faulty installation; offered $100 gift card instead of cost compensation
  • Roof tile damage left unrepaired for months; replaced with different colour
  • Paperwork delays blocked grid disconnect for months, leaving customer paying full power charges and system payments simultaneously
  • Water filtration system described as not improving taste or smell by one customer

What reviews say by service

Residential Solar Panel Systems
Mostly strong performance and savings; one case of roof tile damage and months-long repair delay
Battery Storage Systems
Praised for performance when installed correctly; serious wiring error caused tripled power bills for one customer
Solar Energy System Service
Poor response when faults discovered; one customer chased for a year before correction, without cost compensation
Solar Panel Maintenance Service
One customer reported 20% power performance drop within 2 years with no maintenance details mentioned

How it compares

  • Rated 4.5 against a 4.59 average across the 54 solar hot water systems businesses listed here.
  • Has more Google reviews than 95% of the businesses in this directory.

How did this business earn its score?

How We Score
Star rating 67
Review volume 100
Review recency 100
Review sentiment 61
Profile completeness 100
Verification 30

Rating breakdown

5
301
4
17
3
0
2
7
1
33

Questions people ask

Will someone visit my home to assess my solar needs?
Yes. Reviewers consistently mention Chris or Harleigh visiting homes for site assessments to understand your needs and provide quotes. The business avoids high-pressure sales during these visits.
What happens if something goes wrong after installation?
Technaus has been documented as returning to fix faults, such as incorrect wiring. However, one customer reported it took almost a year to get a response, and the company offered a $100 gift card instead of reimbursing extra power bills incurred during the fault.
How long does the grid connection and paperwork usually take?
One customer experienced a 3-month delay between installation and grid disconnection, during which they paid full power charges while also paying system installments. Technaus did not proactively mention this timeline.
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Last updated 2026-09-05