Completed Project

Berry Farm House

Architect: Saturday Studio
Builder: Lime Building Group
System: Integrated heating and cooling
Capacity: 68kW

Project brief/scope:

  • Hydronic underfloor heating
  • Architectural hydronic radiators
  • Space Heating and cooling via concealed packaged water to air units
  • Pool heating
  • Potable hot water heating

CWL Group provided an alternative solution to conventional heating and cooling systems for an energy-conscious client with site-specific governing factors such as:

  • Main natural gas not available and difficult site access for LPG delivery
  • Limited power supply due to the rural location
  • Site reliance on solar PV and batteries
  • High heating and cooling loads due to a high glazing ratio

A cost-effective, efficient geothermal exchange heating and cooling system was designed and installed by CWL Group to overcome site limitations using a combination of water to water ground source heat pumps and packaged water to air-ground source heat pumps coupled with a horizontal ground heat exchanger installed in an adjacent cow paddock. Inevitable mains power supply upgrade to the new build was avoided due to higher equipment COP (coefficient of performance) and was designed to fit within the existing power supply parameters resulting in considerable overall construction cost savings. Two years on, and the homeowner is enjoying a comfortable and efficient heating and cooling system with minimum maintenance.


In Progress


Geothermal Exchange Heating and Cooling Solutions

Commercial HVAC

Stands for heating, ventilation and air conditioning. This system provides heating and cooling to commercial buildings.

Residential Solutions

Australia’s leading Residential Builders and Architects, successfully completing complex and challenging projects on time and beyond expectation.

Geothermal Exchange

The basic principles of a closed-loop GSHP system begins with the absorption of heat from the ground heat source.

Our Trusted Partners

We engaged CWL for the geothermal exchange and HVAC works on our unique project in Bellevue Hill and were selected based on pricing and their previous experience. It turned out to be the best choice in subcontractors we made for the whole project. Their professionalism, work ethic, expertise and willing to help wherever needed made a highly complex services installation that much easier, and more efficient than expected. I’d like to personally thank James and the site team who put the extra effort in at all times to get our project over the line with remarkable results. Highly recommended Subcontractors and mechanical consultants.
- Theo Elphick, Site Manager, Built
A culture of striving for excellence combined with motivated and dedicated staff is what defines CWL Group. Their workmanship is second to none and it is obvious that all of the staff care about what they do. Commitments are met and exceeded and there are no problems that can’t be resolved. I’m looking forward to working with Clayton and his team in the future and have no hesitation in recommending them to anyone.
- Mick Carroll, Bellevarde Constructions
The team from CWL Group are very reliable, responsive and efficient in their work. They go above and beyond to make sure the job is completed at its highest standard. The knowledge of the guys is exceptional. I would recommend the CWL Group team every time!
- Annemarie Rodrigo, Bellevue Hill House Keeper
I want to thank CWL Group for the outstanding work in installing our hydronic heating system. I have worked with many plumbers over the years and I have never seen such a high standard of workmanship. They came in on time and on budget. I cannot recommend the team from CWL Group highly enough.
- Robert & Roberta Cook, Blue Mountains

Service that goes Above and Beyond... and Below.

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