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Cool Or Cosy Perth

Updated 2026-08-05 · 2,638 reviewed · 195 listed · Scored from 18 Google reviews · How we rank ›

4.8(18) 70 low data composite score See reviews on Google ✓ Google-verified
Residential Solar Panel SystemsSolar Energy CompanySolar Energy System ServiceCommercial & Industrial SolarSolar Panel Maintenance Service
Cool Or Cosy Perth
Services
Residential Solar Panel Systems, Solar Energy Company, Solar Energy System Service
Reviews
18

What recent reviews say

Cool or Cosy Perth installs residential and commercial solar systems across Perth Metropolitan. Reviewers consistently praise on-time, clean work by named staff like Gabriel and Liz, good value against larger competitors, and follow-up support including app setup and billing advice. One reviewer noted an inverter placement preference wasn't prioritised, though the installer's choice was workable.

Based on limited recent reviews, so treat this as low-confidence.

Praised for
  • professional installation
  • efficient and on-time service
  • friendly and knowledgeable staff
  • good value pricing
  • thorough aftercare and follow-up
Watch-outs
  • minor: inverter placement preference not always prioritized
knowledgeable-staffreliable-installationfair-pricingtransparent-quotingefficient-installation-teamgood-after-sales-supportresponsive-customer-servicehonest-advice
Best for: Homeowners and small businesses wanting competitive solar installation with post-install coaching and transparent pricing.
Think twice if: None grounded in the reviews; the business has an exceptionally strong record.

Strengths

  • established 1986, long-term local operator
  • named installers praised for professionalism and knowledge
  • competitive pricing and referral availability
  • hands-on aftercare including app coaching and billing support

Worth knowing

  • Gabriel: installer praised for roof-space expertise and knowledge
  • Liz: office staff noted for attentiveness and service delivery
  • Tony: mentioned as part of the management team
  • App coaching and billing advice offered post-installation
  • Rural servicing: kept customers informed despite travel constraints
  • Reference customers available on request
  • Damage offset agreed fairly at contract stage

What reviews say by service

Residential Solar Panel Systems
Praised for efficient installation, roof challenges solved, competitive value, app setup and coaching included
Solar Energy System Service
Follow-up engagement and billing advice valued; post-install support proactive and attentive
Commercial & Industrial Solar
Limited review evidence, but team noted as capable of complex installations
Solar Panel Maintenance Service
No explicit maintenance service mention in reviews
Solar Energy Company
Overall experience described as professional, efficient, and values-driven

How it compares

  • Rated 4.8 against a 4.57 average across the 133 solar energy company businesses listed here.
  • Has more Google reviews than 52% of the businesses in this directory.

How we scored this

How We Score
Star rating 79
Review volume 56
Review recency 53
Review sentiment 63
Profile completeness 100
Verification 30

Rating breakdown

5
14
4
4
3
0
2
0
1
0

Common questions

Can you install solar in a tight roof space?
Yes. Gabriel quoted and completed a difficult install in a 1960s house with tight roof space that other companies wouldn't attempt.
Do you offer support after installation?
Yes. Cool or Cosy provides app setup, coaching on solar usage, and billing support post-installation.
Do you service rural areas?
Yes. They service rural Western Australia and keep customers informed about timelines despite travel distances.

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SolarGrid Perth
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SolarGrid Perth

4.6(70)✓ Google-verified

Most customers praise the owners Tony and Liz for their hands-on approach and genuine care, with staff like Freddie, Jordan, and Melinda earning specific mentions for clear communication, efficient paperwork, and quick installations. Reviewers highlight that the team explained government rebates in simple terms and delivered quality systems with working monitoring apps. A small number report serious scheduling failures: missed appointments, last-minute cancellations, and slow responses to calls about delayed work despite deposits paid. The strongest satisfaction comes from customers who received end-to-end service: solar upgrades, battery integration, pool heating system coordination, and follow-up checks weeks after install. Freddie is noted for his quoting and communication; Liz for paperwork efficiency and hands-on problem-solving. The inverter upgrade path and integration with existing systems appeal to customers wanting flexibility. Service consistency appears tied to direct involvement by the owners and named installation crew.

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Green Engineering Pty Ltd

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All four Google reviews are one-star, spanning nine years. Customers report being unable to contact the company after purchase, warranty claims ignored despite 25-year guarantees on panels, court orders left unexecuted, illegal installation work, deposits retained without refund or service, price increases imposed mid-contract, and faulty equipment installed without disclosure. Evidence of court involvement and Consumer Protection intervention is substantial and consistent.

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Alinta Energy
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Alinta Energy

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Alinta Energy attracts sharply divided reviews, with 72% of 222 ratings falling into the one or two-star range. Most negative feedback centres on a fundamentally broken online account system where password resets and verification codes routinely fail to arrive, leaving customers unable to access their accounts or manage direct debits. Call centre staff are often praised for warmth and problem-solving, yet the company has mishandled vulnerable households, applied surprise fees, and ignored repeated customer reports of technical failures. WA customers report systematic frustration with app unavailability and routing to the wrong regional teams. Several long-standing customers have switched providers specifically because of billing errors, payment update failures, and the company's refusal to prioritise reconnections for households with children facing cold or no cooking facilities. Competitive rates and occasional staff excellence cannot offset the pattern of neglect around core account management.

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Last updated 2026-08-05