Who is the Hiflo Group?

Hiflo Group has evolved from early beginnings back in 1971 when Ian and Helen Ryder opened as Hiflo Plumbing Limited.

The Business traded from Ouse Street Oamaru for the next 32 years. Plumbing, Drainage, Heating and Sheetmetal were the core Business and the Company soon became a local well established Business offering services throughout North Otago, South Canterbury, the Waitaki Valley and Mackenzie areas. Hiflo Plumbing 40+ years on has expanded our range of offerings and our experienced Team takes pride in offering the quality assurance required in everything we do. 

In the late 90s Gasfitting was in high demand becoming a big part of the Hiflo Business as it still is today. With the regions expanding rapidly in LPG it was obvious distribution was also required. This lead to a Company decision to enter into the LPG Retailing and Distribution Market establishing a new Division called Rockgas Oamaru. Today we have expanded and now trade as Rockgas Mackenzie based in Twizel, Rockgas North Canterbury based in Kaiapoi, Rockgas Mid Canterbury based in Ashburton. We have an expert team and if it's LPG from Design, Installation and Distribution we provide the lot with many years of experience.

In 2005 Industrial and Hospitality Businesses already being part of our everyday LPG offering started requesting many other Gases. We had the Distribution Network and today we now provide a full range of Gases in all our Rockgas areas.

Heating has always been one of our specialities right from the outset. We have literally designed and installed thousands of Heating Systems over many years from our Oamaru Showroom. Heat & Home, our Retail Division is a showcase of Product with all the leading Brands. We are your Heating One Stop Shop from Design, Sales, Installations and Permits.

The Hiflo Group Quality Assurance


Hiflo has carried out services in North Otago, South Canterbury, the Waitaki Valley and Mackenzie areas for 44 years. Our diverse history in all areas of the Trade has grown the Company as a stand out in the Trade Sector. We have a Plumbing Team of 12 and Personal Development is ongoing. You can be very assured that our Tradesman are providing a Service at the highest of levels.

We specialise in Plumbing, Drainage, Gasfitting, Heating, Solar, Water Pumps, Water Treatment and much more.

Our success has been Customer Experience, Quality Assurance and Leadership.



Our large Heating Showroom in Oamaru is your showcase of most leading Heating Solutions for your Home or Business. LPG, Diesel, Wood Pellet, Solid Fuel, Boilers, Radiators and Underfloor Heating are what we stand for. Our Team of experienced Installers, all trained, provide for that complete package of purchase to installation including Permits and that specialist advice along the way. Installing thousands of Heating Solutions throughout all our areas we are your One Stop Heating Business.


The Hiflo Group has four Rockgas LPG Franchises which operate throughout the lower South Island as well providing CGS Gas as a genuine alternative for Industrial Gas Supply. Extensive marketing has shown that Gas users welcome and encourage competition in what has been a monopoly market for Industrial, Speciality, Medical, Cryogenic Liquids and Gases over many years.