Commercial Dishwashers For Sale
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Commercial Dishwashers for Sale in Perth
If you’re looking to buy a commercial dishwasher in Perth, look no further than Group Maintenance. We supply cafes, pubs, restaurants and hospitality businesses across Perth with quality products and have several models of commercial dishwashers for sale, including Washtech and Lamber, two of the most trusted names in the industry. For your further peace of mind with our industry-leading products, all our commercial dishwashers for sale come with a full manufacturer’s warranty.
For the past two generations, Group Maintenance has supplied new commercial dishwashers and equipment to clients and repaired broken equipment with high standards of quality service. This means you’ll be supported by the absolute best in the industry, who are ready to offer timely solutions that work with your business.
Need your new commercial dishwasher installed immediately? At Group Maintenance, we dont delay – we have specialised technicians for your commercial dishwasher installation. Our techs carry all major parts and are backed by a large workship, enabling us to quickly order or supply whatever else may be needed.
To enable businesses in Perth to get a commercial dishwasher they need, simple finance terms is now available for new dishwasher sales and servicing.

Washtech M2
Passthrough Dishwasher


Professional Passthrough
Dishwasher – 500mm Rack
2.4 litre per cycle hot water consumption
Don’t pay List Price… Call us now
Washtech AL
Premium Heavy Duty Passthrough Dishwasher
Fully Insulated Premium Passthrough
Dishwasher – 500mm Rack
Don’t pay List Price… Call us now


Washtech UD
Professional Undercounter Dishwasher


Dishwasher/Glasswasher – 500mm Rack
Don’t pay List Price… Call us now
Washtech GM
Professional Undercounter Glasswasher
Glasswasher and Light Duty
Dishwasher – 450mm Rack
Advanced electronic controls with selectable cold rinse, soft start wash and self-cleaning cycle
Don’t pay List Price… Call us now


Commercial Dishwasher FAQs
What is the difference between a professional/ commercial dishwasher and a home dishwasher?
There are several important differences between commercial dishwashers and home dishwashers, including size and capacity, durability, washing power and drying effectiveness:
Size and capacity – Commercial dishwashers are significantly larger and clean more dishes per cycle. Residential dishwashers are smaller and designed to suit a household’s daily needs.
Durability – Commercial models are built to run many loads daily. They’re manufactured with stainless steel and more durable parts than homewashers, enabling them to endure frequent cycles. Household units are made to run 1–2 loads daily. What’s more, commercial dishwashers are faster than home dishwashers, with many models running a full cycle in just 2–5 minutes.
Washing power – Commercial machines use stronger jets, hotter water, and potent detergents to ensure high standards of cleanliness and sanitisation. Home units are gentler and less effective on heavily soiled items due to lower power and the use of milder cleaning agents.
Drying effectiveness – Commercial units use strong fans and ventilation for fast and efficient drying. Home dishwashers generally lack the same power, which often results in dishes still carrying some moisture after the wash cycle is complete.
Can you use a residential dishwasher in a commercial kitchen?
It isn’t advisable to use a residential dishwasher in a commercial kitchen. Unlike the commercial dishwashers for sale, these machines are intended for residential use and aren’t designed or built to handle the demands of a high-traffic commercial kitchen. The reasons why a residential dishwasher isn’t suitable for commercial kitchens include:
Durability – Home dishwashers are made for light use, typically just 1–2 loads daily, while commercial kitchens may run 20 or more cycles, which would quickly wear out a residential model.
Capacity – Residential dishwashers are smaller than commercial dishwashers and are sized for family use. Due to their smaller size, they can’t handle the high volume of dishes typically required in a restaurant or hospitality business.
Water temperature – Home machines run at lower temperatures than commercial dishwashers. This means they may not meet the sanitisation standards required in a business environment.
Drying power – Most home dishwashers do not fully dry dishes, while commercial kitchens require completely dry dishes that are ready for immediate use.
Cleaning power – Residential machines lack the strength to clean tough, baked-on food from pots, pans, and plates, which is why specialised commercial dishwashers are used in restaurant kitchens.
Code violations – Very importantly, local laws ban residential machines in food-service settings. Using one would breach food safety and health regulations and you could cop a serious fine.
What are the different types of dishwashers?
For plates and cutlery, underbench dishwashers provide a compact and reliable dishwashing solution. These models are ideal for smaller venues like cafes and are similar in size to home dishwashers but offer faster, commercial-grade performance. The smaller footprint of these machines means they can be installed in smaller kitchens, and as they generally don’t require steam extraction, installation is more cost-effective.
For bars, pubs, nightclubs and venues that need to wash large volumes of glassware quickly and effectively, commercial glasswashers are the ideal choice. Glasswashers are compact and space-saving, and are often installed under benches for quick access directly from the bar.
In high-volume kitchens with larger workloads, passthrough dishwashers are the next step up. These machines demand more power and typically require steam extraction, so they’re best suited to large kitchen spaces. Capable of cleaning between 700 and 900 dishes an hour, they also handle cutlery and glassware. This makes these machines ideal for busy service periods.
At the top end of the commercial dishwasher range are conveyor dishwashers. These are large, modular systems that are built for washing more than 1,000 dishes per day. These machines are generally fully customisable to meet the unique needs of high-capacity commercial kitchens.
How do I buy the right commercial dishwasher for my Perth business?
Start by measuring the space in which the dishwasher will be installed, making sure to factor in plumbing access and the full footprint when the dishwasher door is open. It’s important to leave enough room to move freely around the unit with the door open so your kitchen workflow isn’t disrupted.
Once you’ve determined the space requirements, compare different dishwasher models, their features and load capacities to choose one that meets your kitchen’s demands. As a general rule, for low volumes, such as cafes or restaurants with fewer than 20 seats, an underbench unit should suffice. For places with 30 to 100 seats, a passthrough model is likely to offer the capacity you need. For large venues with more than 150 seats, you’ll need a larger commercial dishwasher, with a conveyor-style dishwasher likely to be the best fit.
Do I need a technician to install a commercial dishwasher?
To correctly manage the specific plumbing and electrical requirements of these machines and avoid preventable issues with warranties, having a licensed plumber and electrician install your machine is essential. Commercial dishwashers often need specialised plumbing connections to ensure the correct water supply and drainage, which a licensed plumber must install. Electrically, many commercial dishwashers require three-phase power, so a qualified electrician is necessary to complete the installation properly.
Safety is also a major concern, as incorrect plumbing or electrical work can create dangerous situations. Using licensed professionals ensures the installation complies with strict local safety codes and regulations. When installed correctly by experts, you can be confident that your new dishwasher will operate at its full potential, delivering the optimal performance and energy efficiency that you expect from a high-quality machine.