Story of Stewart and Holland

Stewart & Holland have been servicing Mid Canterbury for over 85 years, meeting the needs of domestic, commercial and industrial clients. Offering solutions from design and installation, through to servicing and maintenance for refrigeration, air conditioning and electrical.

Aiming for only the highest standards, supported by industry memberships and authorized installation of all major brands, is key to the trusted and respected community business, ensuring confidence on all jobs.

Stewart & Holland have great working relationships with large contractors, allowing them to work on large scale projects by specialising on specific parts. An additional service benefit is the 24-hour call out service, for those jobs that cannot wait. Stewart & Holland is located at 9 Sim Place, Ashburton Business Estate, Ashburton and 8/16 Izone Drive, Rolleston.

Our Company Directors

Mark Cartwright, Managing Director of Stewart & Holland is well adverse across a broad range of services his company has on offer. Mark is a registered Electrician and Refrigeration Engineer, starting his electrical career in 1984. Following this, Mark then trained as a Refrigeration Engineer and has worked in this field for over 30 years.

Scott Mackenzie a director of Stewart & Holland. Scott started his apprenticeship with Stewart & Holland in 2004, becoming a qualified Refrigeration Engineer in 2008 and followed on from this his electrical registration.  He is very knowledgeable in dairy refrigeration division of the company.

Mark & Scott oversee the day to day running, whilst also working onsite with the team or on technical issues. Mark or Scott are the first men you will see onsite with job outlines and discussions and will complete the quoting and tendering stages.


Our  Team

Stewart & Holland are proud of their staff retention rate and the many long serving staff members. Local businesses value working with Stewart & Holland because of honesty and integrity that are the heart of the business.

The specialised and experienced team consists of

  • Refrigeration Engineers 
  • Qualified Electricians 
  • Appliance Services Technicians 
  • Apprentices 
  • Administration Staff 
  • Heat pump service man 
  • Thermography trained staff 

Mark Cartwright

Managing Director/Refrigeration Engineer/Electrician

Mark has spent the last 19 years with us at Stewart and Holland he loves the challenge of running the business. Building relationships with clients and executing jobs to the highest standard are paramount to Mark. ‘There’s no better feeling than completing a new build having done the mechanical services for a new client.’ says Mark. When he’s not in the office he’s out spending time with family and friends or visiting his children in different parts of the country and overseas.

Scott Mackenzie

Director/Refrigeration Engineer/Electrician

For 15 years Director Scott Mackenzie has been tending to the needs of our all-important clients. He enjoys dealing with new people everyday and solidifying strong life-long relationships with them. He also loves the challenge of finding and fixing faults in the equipment. In the weekends Scott can be found either golfing or chasing the rugby ball around.  

Brendan Whalley

Electrician / Shareholder of Stewart and Holland Rolleston

Brendan has been managing the Rolleston branch for 5 years and we have now have a staff of 4. He is excited to have built lasting relationships with new and existing clients around the area. He is passionate about providing efficient, friendly service for all our customers. When Brendan isn’t at work you can find him exploring the great outdoors mountain biking, skiing, four wheel driving or having a few cold ones while watching the crusaders win the game. 

Jo Cartwright

Office Manager

Jo’s managerial skills have solidified her role at Stewart and Holland for over a decade now! Her passions include being able to work with people and numbers, making her perfect for this role. When Jo is not busy running the office, she’s another one of our avid bike riders and she also enjoys catching up with friends, holidaying in Akaroa,  going to the gym and reading a good book. 

Emma Harrison


Emma is the friendly face that will greet you when you visit. She’s a real people person and has also taken on the role of supporting our Rolleston Branch (as well as keeping our Ashburton branch under control!). She enjoys reading and spending time with friends, family and her dogs.

Kevin Hurley


Kevin started his journey with Stewart and Holland as an after-school apprentice over 50 years ago! After all this time Kev still enjoys the variety of work, especially working the big commercial jobs. When Kev is not working hard for our customers you can find him supporting the Celtic Rugby Club, out fishing and when he gets the chance maintaining the garden and having a few beers with mates. 

Mike Register

Refrigeration Engineer/Electrician

For the past 9 years Mike has been one of our Refrigeration Engineers/Electricians. The best thing about working here for Mike? He says the variety of work he gets to undertake and the people he meets every day. There’s nothing better than getting out and enjoying his 4WD in the weekends or spending time with the wife and kids says Mike so that’s where you’ll find him when he’s not taking on a task at work. 

Scott Double

Refrigeration Engineer

Scott is another one of our long-standing staff members having been with us for 20 years this September! He has a passion for working with the welder and undertaking our commercial jobs, but he enjoys all aspects of his work. When Scott has time off, he trades his work boots for hunting boots and heads out in to the mountains or can be found hanging out with the family.  

Craig Duffield

Refrigeration Engineer

Craig started with us in September 2018 and is a great asset to the company. Craig loves that he gets to come to work and be challenged by working on something different every day. ‘They are great people to work for and the team I work with are pretty great too.’ says Craig. When he isn’t working you can find him going for a ride on his bike or spending time with his family.

Vincent Braam


Vincent or ‘Vin’ as we call him as our Apprentice Mentor and Electrician. He’s been part of the team for 4 years and enjoys having a personal relationship with his superiors allowing for open communication when it’s needed most. In his downtime you’ll find him hanging out with his son or practising the Violin!


Tony Kerr

Heat Pump Serviceman

Tony or ‘Spud’ as we call him has been with us for 7 years servicing the heat pumps of Ashburton making sure we are breathing the cleanest air possible! Getting out and meeting people from all walks of life is what gets Tony up in the morning as well as the camaraderie with the staff. When Tony isn’t servicing heat pumps, he’s down at the Celtic Rugby Club, playing a round of golf or of course enjoying a cold one. 


Izack Otene

Apprentice Electrician

Izack has been with us for 1.5 years and is our Electrical Apprentice. An avid learner, Izack thrives on mastering new skills and understanding different Electrical processes. Next time you see Izack you should ask him about the picture of a Unicorn he once sold for a cool $10,000.

Nick Fechney

Refrigeration Engineer

Nick has completed his qualification and is now a Refrigeration Engineering. He is also completing his training to be a qualified Electrician. He’s a hard worker who thrives off learning on the daily and putting in the hours. After clocking out from a job well done Nick loves playing Basketball.

Bradley Whalley

Apprentice Electrician

Bradley is an Apprentice Electrician based in our Rolleston branch. When asked what he likes about his job he said “The broad range of work we take on at Stewart and Holland. Which keeps me on my toes.”He loves to travel and has seen much of the world, he also loves skiing, biking and getting out on the water.

Mitchell Quigley


Electrician Mitchell loves the variety of work he gets working at Stewart and Holland. He says it’s challenging and rewarding which in turn makes it enjoyable! He’s a huge Rolling Stones fan and has over 300 various RollingStones albums on vinyl!