What Our Clients are Saying

Westfield Shore City has had an association with Peter Cliff and Commercial Ducting Ltd since 2004.

The cleaning of the ducting for our shopping centre in completed on an annual basis. It is a very technically comprehensive system, including servicing the 7 food court shops individually and the building with 8 large inline fan units. As the work is carried out in conjunction with our centre security, there is a requirement for all crews to have an induction prior to commencement of work. The system requires that the crew use a cherry-picker and have knowledge of working in confined spaces. We are more than satisfied with the services that Peter and his Company are providing. The quality of workmanship and responsibility shown in the servicing of our ducting system is of a very high standard and all chemicals used in the cleaning are also of a very high quality. This is very important to us as a Company who are concerned with maintaining the environment.

Commercial Ducting work crews show all skills conducive to the Site Safe passports that they carry.  We have no concerns regarding safety on our site.

Should you require any further information, please do not hesitate to contact me.

Yours faithfully,


Ken Ingle

Welcome to Comduc


FOR EXPERT ADVICE & FREE QUOTES PLEASE CALL US ON FREEPHONE 0800 266 382.
WE HAVE IQP REGISTRATION (12A).


Commercial Ducting specialises in the cleaning and sanitising of commercial kitchen extractor systems to comply with Health, Fire and Insurance requirements. All of our work is to Certificate of Compliance specifications. We are IQP Registered (12a Certificate) for the work we do. We are a sound, well-established (1989) business and all our work is fully guaranteed. Our Public Liability insurance extends to $10 million. We use top quality equipment, all of which is checked regularly, sanitised before use and replaced if faulty. 

All of Comduc's cleaning and sanitising chemicals are supplied by the international company Ecolab. Their representative ensures that we are using the latest, safest and most cost effective of their products, all of which are MAF approved. Comduc's service people also participate in Ecolab comprehensive training programmes to ensure that the chemicals are handled correctly.

We are pleased to pass on these benefits to you the customer.

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 5 branches, located in Warkworth, Mt Maunganui, Wellington, Christchurch and Dunedin.  We have an administration staff of ten working from our Head Office in Warkworth. Area Managers and Supervisors are based at the 4 other branches.

We work throughout NZ - from Kaitaia to Invercargill with monthly trips to most areas.