Visit Our Showroom:
630 Waterdale Road Heidelberg West, Victoria, Australia โ 3081
24/7 Emergency Breakdown & Repairs
Ducted heating, reverse cycle air conditioning, split systems and evaporative cooling, designed, supplied and installed in Doncaster by our own licensed team. Family owned since 1974, with our showroom in nearby Heidelberg West.
Whether it’s a Doncaster family home or a newer townhouse, we design ducted or split systems to suit the space and your budget.
Grech has been helping families across the Manningham council area stay comfortable since 1974. We assess your Doncaster home, explain your options in plain English and install a system that suits your rooms, your budget and your energy bills.
Visit our showroom at 630 Waterdale Road, Heidelberg West, or book a free in-home quote and we’ll come to you.

Gas ducted heating is the most popular way to warm a whole Doncaster home. We install new systems and replace old, inefficient units with modern high-efficiency heaters, with zoning so you only heat the rooms you’re using.

Stay cool through Melbourne summers with ducted reverse cycle or split system air conditioning. Reverse cycle systems also heat in winter, giving your Doncaster home efficient year-round comfort from one system.

Evaporative cooling is an affordable way to cool a whole home with fresh, filtered air and low running costs. We’ll check whether your Doncaster home suits evaporative or refrigerated cooling and install the right system.

We visit your Doncaster home and assess your rooms, insulation and needs.
We recommend the right system and give you a clear written quote.
Our own licensed installers fit your system neatly and safely.
You receive a 6 year certificate of compliance and our workmanship warranty.
For servicing, repairs and 24/7 breakdowns in Doncaster, our sister business Grech Services sends a licensed technician fast, with fixed pricing.
It depends on the size and layout of your home, the number of zones and the unit you choose. We visit your Doncaster home for a free, no-obligation assessment and give you a clear written quote, with interest-free payment options available.
Ducted gas heating warms the whole house from one unit, while split systems heat and cool individual rooms. Many Doncaster homes combine both. We’ll recommend the most efficient option for your home during your free in-home quote.
Yes. We supply and install ducted reverse cycle and split system air conditioners from leading brands such as Daikin, Mitsubishi Electric and Brivis, giving Doncaster homes efficient heating and cooling from one system.
Repairs, servicing and 24/7 breakdowns are handled by our sister business, Grech Services in Doncaster, so you get the same trusted Grech team for both new systems and repairs.
Talk to Melbourne’s family-owned heating and cooling specialists.