Frequently asked questions

Why Clean?


Firstly, it’s the law. An annual inspection, cleaning and sanitising of mechanical ventilation and air conditioning systems is a legal requirement for a Building Warrant of Fitness under the New Zealand Building Act. KEEP INSURANCE VALID The insurance industry includes provisions excluding claims if negligence is involved in the cause or spread of a fire. Negligence can include inadequate cleaning. The Insurers Loss Prevention Council recommends a thorough clean of the entire system is carried out by specialists at least annually. HEALTH AND SAFETY Hygiene experts cite the need for continual cleaning of both canopies and extract ducting to maintain a contaminant- and odour-free environment.
Fat and oil build-up provides a breeding ground for bacteria, cockroaches, rodents and foul odours. Contaminated oil will also seep back through filters and overflow from oil drains onto food and cooking surfaces in the kitchen below. This directly affects the health of all kitchen staff as well as the public at large. A clean exhaust system promotes a cleaner air flow; better for all. SAVE ON EQUIPMENT COSTS Regular cleaning of your commercial kitchen equipment not only creates a safe and hygienic cooking environment, it also helps prevent damage. Grease and other debris can quickly build up damaging sensitive gears or electrical components. Fat will bind around fan units resulting in motor burnout. Oil breaks down joint seals in ducting causing corrosion, blocked drains and leakage onto ceilings etc. Oil and fat blown onto roofs by fans causes paint discolouration. For you that means costly repairs or replacement, plus expensive down time. LOWER ENERGY COSTS A clogged ventilation and exhaust system cannot draw air effectively and therefore runs inefficiently, costing you more. REDUCE CLEANING COSTS Get your walls, ceilings and exhaust systems cleaned regularly. Cleaning a very dirty commercial kitchen and ventilation system on a one-off basis is a long and involved process and consequently the cost is greater. Whereas regular maintenance and servicing of kitchen surfaces, hoods, ducts and extractor fans is quicker, easier and more cost effective.




What Are The Benefits of Cleaning Kitchen Exhaust Systems Regularly?


Regular cleaning of the canopy exhaust system maintains a hygienic working environment in commercial kitchens. One of the best ways for commercial kitchen owners to protect their businesses and livelihood from destructive commercial kitchen fires is by having the exhaust system regularly cleaned by trained, certified professionals. When built up with grease, kitchen exhaust systems are the single largest contributor to serious commercial kitchen fires. Grease and the high temperatures from cooking can lead to a fire within the building duct system. When fanned by an air extraction system, the fire can quickly spread throughout the entire building.




Where And When Do We Work?


We operate 24 hours a day, seven days a week, so all work is guaranteed to be done at a time most convenient for our clients. Currently we have 8 branches located in Warkworth, Manukau, Tauranga, Wellington, Nelson, Christchurch, Queenstown and Dunedin. We have administration staff working from our Head Office in Warkworth. Area Managers and Supervisors are based at the five other branches. We work throughout NZ – from Kaitaia to Invercargill with monthly trips to most areas.




What NZ Standards Do We Clean To?


NEW ZEALAND LAW: VENTILATION, HYGIENE & FOOD STANDARDS We clean to the following current relevant legislation standards: Compliance Schedule C59 – Ventilation Building act sections – C3, G3, G4 Food hygiene (1974) act AS 1851.6 2005 (for building WOF, I.Q.P. Inspection Report) TR/19 International Standard




Why Choose COMDUC?


- You’ll always have a personal point of contact - We are a well-established, family-owned business - Bespoke cleaning services are tailored to your business - All our work is fully guaranteed - All equipment is checked and sanitised before use - Thousands of satisfied customers since 1989 - Nationally accredited and IQP Registered - Site Safe registered - National coverage from Kaitaia to Invercargill - $20m Public Liability




What Kind Of Businesses Do We Service?


- Restaurants - Fast Food Outlets - Hotels - Hospitals - Retirement Homes - Shopping Malls - Supermarkets - Petrol Stations - Airports - Sports Stadia - Ski Fields - Sports Clubs and Associations - Schools - Parliament Buildings - Military Bases - Police Stations - Department of Corrections Buildings And more




How Much Does It Cost?


The price for your clean will depend on which services you would like to book, which is why we offer free quotes! Contact us today to get your free, no obligation quote.