South Australia's #1  Energy Solutions Company

 Copyright © 2013 Homeworks Co Pty Ltd trading as Cool or Cosy ABN 79 079 033 499. All rights reserved.

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Established in 1984 the Cool or Cosy organisation is now firmly entrenched throughout South Australia and Asia and is by far the largest manufacturer and supplier of Cellulose Insulation in Australia.

Cool or Cosy can undertake any type of Energy Efficiency project from a small domestic extension to large commercial projects with their range of safe, efficient and quality endorsed products. Read More.


Solar Systems

High Quality
Replacement Warranty
100% Micro-Crack Free
5000+ systems installed

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Money-back Guarantee



Quality Assured
100% Recycled
Allergen Free
Fire & Vermin Retardent

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Lifetime Warranty

Energy Efficiency


Minimise Usage from the Grid
Instant Battery When You Need It
Reto-Fit to Existing Solar
Greater $avings

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Zero Deposit Finance

Battery Storage!


Hot Water

High Quality
Wide Range
Rapid Payback
Long Life

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Guaranteed Workmanship

Established in 1984, Cool or Cosy specialises in home energy solutions. Renowned as the market leader in environmentally friendly cellulose fibre insulation, Cool or Cosy also boasts a complete range of innovative Solar and Energy Saving solutions.

Why Cool or Cosy?

Home Environmental Assesment

With our continuing commitment to customer care, quality products, after sales care and service, our unique Home Environmental Assessment, and our continuing desire to improve our products and services, you can be assured that Cool or Cosy will provide you with all of the solutions to your home comfort needs.


Quality You Can Bank On

At Cool or Cosy, we go well beyond just quoting a shelf product or merely quoting from a plan. Cool or Cosy is an ISO: 9001:2000 Quality Assured company. As such, we are wholly committed to providing our customers with what they want… the best energy solutions available for their home environment!

Guaranteed Installations from a Team You Can Trust!

Cool or Cosy employ our own installing teams who only work for Cool or Cosy. This guarantees you a quality assured job installed to the Australian standards and guaranteed by Cool or Cosy.

We buy direct from the manufacturer. We quote, We install, We guarantee it!


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Thanks for your 1st Class Service. Highly Recommended.

-- Graham, Christies Downs

What a wonderful team of people you have.Keep up the good work and it has been a pleasure doing business with your company. Word of mouth is the best advertisement and I will definitely be telling people!

-- Meryl, Moonta

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Helping South Australians be Energy-Smart Since 1984

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Super Efficient
50% quieter
Rapid Payback
Long Life

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5 Year Warranty

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Govt Solar rebates still available!

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