CST Group - Water Services
Bulk Water Delivery & Drinking Water Supply for the Waikato Region. Our potable water is all taken from designated council fill points and is safe to drink.
CST Water (Formerly known as Waikato Water and Cartage - still the same owners) are a family owned and operated company based in Cambridge, servicing the Waikato region. We provide water delivery services throughout the Waikato region, including water tank refills, swimming pool filling, water tank cleaning and water tank hire. We are able to deliver over 13,000 litres in a load, and 23,000 litres by truck and trailer if the property access allows. We have several trucks operating throughout the Waikato including Cambridge, Hamilton, Morrinsville, Te Awamutu and surrounding areas. We take pride in complying with Health and Safety regulations and we are Department of Health registered. Our trucks are highly maintained to ensure your water delivery is of the highest standard.
07/10/2026
Backing local talent all the way to Chile!⚽
At CST Group, supporting our local community is something we’re proud to do, especially when it means helping someone chase a big dream. And there’s something extra special about being able to support people within the CST Group family.
We’re excited to sponsor Ellis Williams, the son of one of our CST Group team members, as he travels to Chile with the RH3 Ricky Herbert Academy of New Zealand to compete in an international football tournament.
Ellis will have the opportunity to test himself against some of the best young football teams from around the world - an incredible experience for a young player with big ambitions.
Everyone at CST Group is wishing him all the best for an incredible tournament! 💪
September’s review winner is… Brett Wallace! 🎉
Congratulations, Brett! There’s a Prezzy Card coming your way!
Brett chose CST Group for his septic tank clean and had these lovely words to share:
“CST are easy to deal with. Quick to respond to any questions and were available when we needed our septic tank cleaned. Service on the day was outstanding. There was a blockage that was dealt with quickly, as well as the tank being cleaned. We got quotes from multiple companies but chose CST due to the professional level of correspondence.”
Thanks, Brett! We’re proud to hear that our communication helped you choose CST, and that the team backed it up with outstanding service on the day. Taking care of our customers starts well before the truck arrives!
Is your septic tank due for a clean? Get in touch with our team to book it in. Whether you’re a returning customer or contacting us for the first time, we’re here to help.
A big thank you to everyone who leaves us a review. Your feedback recognises the hard work of our team and helps others feel confident choosing our family-owned business.
17/09/2026
Meet Edwin Joseph, our new General Manager – Operations
Edwin brings more than 20 years of hands-on experience across heavy machinery, heavy fabrication, hydraulics and fleet logistics.
Over his career, he has built and expanded specialised business units, managed complex site operations, led technical teams and overseen large-scale fleets and assets. His background across the mechanical and fabrication sectors gives him a strong understanding of both the technical and operational sides of running an industrial business.
He also brings a strong focus on using better systems, technology and processes to improve efficiency, support teams and deliver a better experience for customers.
At CST Group, Edwin will be focused on strengthening our operations as we continue to grow.
We’re excited to have Edwin’s experience and knowledge on board.
Welcome to the team, Edwin!
Want to get in touch with Edwin?
[email protected]
021 220 1247
Congratulations to our latest review winner, Jeanne van Kuyk! 🎉
Your Prezzy Card is on its way!
Jeanne left us this lovely review:
“We had a leak in our farm concrete water tank, so we contacted CST Group as, due to the water pressure, the repair needed to be completed from the inside. The person who came out was friendly, helpful and professional, and did an excellent five-star job. I truly recommend CST Group to anyone out there.”
Thanks so much, Jeanne! We really appreciate you taking the time to leave such a great review. 💛
A little reminder, we clean water tanks and deliver water in bulk.
If you’d like to keep the water already in your tank, we can temporarily store it while the tank is cleaned and then return it afterwards. Or, if you prefer, we can deliver a fresh load of water once the clean is complete.
Thanks again to everyone who takes the time to leave us a review. Your feedback means a lot to our team and our family-owned business.
27/08/2026
Darryl and Ross had a great day attending the Trade and Industrial Waste Forum last week.
It was a valuable opportunity to hear what’s happening across the trade waste industry around New Zealand, learn about some of the challenges and changes different regions are facing, and see how others are approaching them.
One of the highlights was meeting and connecting with a number of Trade Waste Officers from around NZ and having some really good conversations about what’s happening on the ground.
Always worthwhile getting out, sharing ideas, making connections, and bringing some new knowledge back to CST Group.
24/08/2026
Good people. Good work. Good excuse for a BBQ & Some Beers. 🍻🔥
On Friday, we headed out to catch up with the awesome team at Phoenix Civil Limited and put on a BBQ to say thanks for their continued support and for being such a great team to work with.
Tanya took charge of the BBQ and absolutely nailed it, keeping the crew well fed while everyone enjoyed a proper catch-up.
We do a lot of work with Phoenix Civil, and having a trusted team to work alongside makes a real difference on every project. Good people, good communication and a strong working relationship go a long way.
Thanks for having us Phoenix Civil Limited - it's always great catching up with the crew, and we’re looking forward to plenty more projects together!
Looking forward to many more great projects together.
16/08/2026
Our Team in Action: Emergency Flood Response at Hamilton Police Station
Last week, our CST Group team was called urgently to the Hamilton Police Station after a council pipe burst and caused extensive flooding throughout the basement.
Our crews used our specialist vacuum trucks and equipment to quickly and safely remove the floodwater, bringing the affected area back under control.
It’s exactly the kind of job our Flooding & Emergency Spill Response service is built for.
With an experienced crew available 24/7, and a fleet of vacuum trucks and hydrovac units ready to go, we can respond quickly when flooding, spills or liquid waste emergencies threaten to disrupt a site.
For commercial, industrial and public facilities, a fast response can make a big difference in limiting disruption and preventing further damage.
If you have flooding or a spill that needs urgent attention, give CST Group a call - we’re Here to Help.
12/08/2026
MEET MATT 👋
If you’ve had one of the CST Group trucks turn up on site, there’s a good chance you’ve met Matt.
Matt has been with CST Group for almost 9 years and is one of the guys out there doing the mahi, meeting customers and getting the job done every day.
Let's learn a bit more about our amazing Matt!
FAVOURITE PART OF THE JOB
Being out and about, meeting people and never knowing exactly what the day will bring. No two days are the same, and over the years he’s made some great mates along the way.
SOMETHING CUSTOMERS MIGHT NOT KNOW
You can’t always completely empty a tank if there’s a high water table around it. Take too much weight out of the tank and there’s a risk it can actually lift or “pop” out of the ground. A good reminder that there’s often a bit more to these jobs than simply turning up and pumping a tank out!
BIG ACHIEVEMENT
Matt got his Class 4 licence a few years ago, helping him take on even more of the work happening out in the field.
AROUND THE YARD
Matt is known for always being up for a good yarn - whether that’s with the team or customers out on site.
OUTSIDE OF WORK
Weekends are usually a mix of hunting, fishing, watching the kids’ sport and spending time with family. One family tradition Matt values is getting everyone together for dinner once a month. And if you’re looking for him on a quiet Sunday morning, Robert Harris in Cambridge is a pretty good place to start. ☕
FUN FACT
Matt was born in England and moved to New Zealand when he was three.
WHAT’S PLAYING IN THE TRUCK?
Depends on the day - ZM, The Rock or whatever Spotify playlist is doing the job.
BUCKET LIST
A year-long tour around the Northern Hemisphere……and a hunting trip in the South Island. 🎯
Next time you see Matt out and about, make sure you say g’day, there’s a very good chance he’ll be up for a yarn.
Congratulations to our July review winner, Diane Millow!
Diane left us this lovely review:
“Highly recommend this Cambridge company as we've been using them for many years. They are prompt, efficient and do a discount on more than one septic tank empty. They do a thorough job and always offer helpful advice.”
Thanks so much, Diane! We really appreciate the kind words, and your ongoing support over the years. 💛
And a special shout-out to the lovely Clara from our accounts team for being a good sport and helping us with the winner video. After asking around a few of the team and getting a few very quick “not me!” responses 😂 , Clara kindly stepped up to the camera.
It turns out plenty of the CST Group team are much happier working behind the scenes than starring in front of the lens!
But if there’s someone from the team you’d like to see make a cameo, let us know in the comments - we’ll see what we can do to convince them to get in front of the camera! 🤞
Thanks again to everyone who takes the time to leave us a review. Your feedback means a lot to our team and our family-owned business.
28/07/2026
Giving Back Matters to CST Group
At CST Group, giving back has always been an important part of who we are. We're proud to support a number of incredible charities and organisations that provide vital services, care, and support to people and families across New Zealand, including:
❤️ Ronald McDonald House
🚁 Westpac Rescue Helicopter
🚑 Hato Hone St John
💙 Heart Kids New Zealand
👁️ Fred Hollows Foundation
🧩 Autism New Zealand
🤝 Rapid Relief Team (RRT)
🏡 Caring Families Aotearoa
🎄 Special Children's Christmas Parties
Community support doesn't stop there.
We're also proud to support local sports teams and individuals chasing big goals. Whether it's helping grassroots clubs grow or backing talented individuals to pursue life-changing opportunities, we're passionate about investing in the next generation and building stronger, more connected communities.
To all of these incredible organisations, volunteers, coaches, and community champions - thank you for the work you do every day.
Community is built by people who care. Tell us about a local charity, sports club, or community group that's making a difference, we'd love to give them a shout-out in the comments.
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Telephone
Website
Address
184 Puahue Road
Te Awamutu
3875
Opening Hours
| Monday | 7am - 5pm |
| Tuesday | 7am - 5pm |
| Wednesday | 7am - 5pm |
| Thursday | 7am - 5pm |
| Friday | 7am - 5pm |
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