Your Trusted Septic and Drain Services in the Waikato Area
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Hydro Excavation
Hydro Excavation put simply is a safer way to dig. An alternative to manual digging and is ideal for locating or working around utilities – gas, water and fibre optics.
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Septic Tank Cleaning
Quality Septic Tank Services in Hamilton and the Waikato Region. Rely on the experts for your septic tank cleaning and liquid waste disposal!
Book a Septic Tank Clean
Bulk Water Delivery
Do you rely on tank water for drinking and household use? We offer bulk water delivery throughout the Waikato. Our water is taken from council fill points and delivered in hygienic stainless steel tankers, so it is safe to drink.
Book a Water Delivery
Bulk Liquid Waste Collection
We are well equipped to handle any bulk liquid waste collection, with four vacuum trucks and a trailer, we have the capability to service most domestic and commercial jobs.
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Drain Unblocking
Having issues with blockages in your pipework? We have the capabilities to CCTV Inspect your pipelines to locate blockages and then water jet the pipeline to remove it.
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Water Tank Cleaning
It’s important to keep your water tank free from sludge, rodents and other harmful substances that compromise your water supply. The Ministry of Health recommends cleaning your water tank at least once a year. So if your tank’s due for a clean, book a tank clean now!
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CCTV Pipe Inspections
An efficient and effective way to assess your drains is through a CCTV pipe inspection. This method allows you to see what is going on in your pipelines and get to the core of the issue using either a push rod camera or crawler camera.
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The Home of Cambridge Septic Tanks, Waikato Water & Cartage, Bain Liquids Disposal and Valley Liquid Waste.

Your Trusted Septic, Drainage & Civil Services Team

For over 20 years, we’ve been helping homes, businesses, farms and contractors with reliable septic, drainage and specialist civil services.

Starting in 1996 as Cambridge Septic Tank Services, we’ve grown alongside our community to provide a comprehensive range of solutions, including septic tank cleaning and maintenance, drain unblocking and cleaning, high-pressure water jetting, CCTV drain inspections, hydro excavation and water tank and delivery services.

One experienced team. A complete range of septic, drainage and excavation services across the Waikato, Bay of Plenty, Thames/Coromandel, and surrounding areas. 

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CST Septic Services in Waikato
CST Group Industrial Logo
Water Delivery and Tank Cleaning Services in Waikato

Our Services

CST Group delivers practical, reliable solutions across residential, commercial and industrial environments. With experienced teams working across a range of specialist industries, we help keep properties, facilities and essential infrastructure operating safely and efficiently. Go to our services page.

Septic Tank Cleaning in Waikato

Septic Tank Cleaning

Completing regular maintenance and servicing of your septic tank is important to prevent blockages, leaks and to avoid it becoming a health risk to you and your family. We recommend having your tank cleaned every 2-3 years.

Bulk Liquid Waste Disposal in Waikato

Bulk Liquid Waste Disposal

Our team are well equipped to handle any bulk liquid waste collection, with four vacuum trucks and a trailer, we have the capability to service most domestic and commercial jobs. Send us an enquiry and we'll come up with a solution for you.

Hydro Excavation in Waikato

Hydro Excavation

Hydro Excavation is simply a safer way to dig. An alternative to manual digging that is ideal for locating and working around utilities e.g., gas, water and fibre optics.

CCTV Pipe Inspections in Waikato

CCTV Pipe Inspections

We operate two cameras for CCTV pipe inspections - Mainline and Push Rod. CCTV Pipe Inspections are key for drain tracing, locating pipework and identifying any pipework issues.

Sump Cleanouts in Waikato

Sump Cleanouts

With heavy rain, it's not uncommon for catch pits and sumps to become full and overflow. If the sumps on your property are due for a cleanout, call us today to book them in.

Pipe Flushing in Waikato

Water Jetting & Drain Unblocking

We operate a jetter truck, which has the capacity of flushing pipes 70-120mm in diameter - suitable for both domestic and industrial. Hydro jetting is ideal for pipe cleaning/flushing, drain unblocking and root removal.

Water Tank Cleaning Waikato

Water Tank Cleaning

It's important to keep your water tank clean from sludge, rodents and other harmful substances that compromise your water supply. The Ministry of Health recommends cleaning your water tank at least once a year. So, if your tank's due for a clean, book in now!

Bulk Water Deliveries in Waikato

Bulk Water Delivery

Do you rely on tank water for drinking and household use? We offer bulk water delivery throughout the Waikato. Our water is taken from council fill points and delivered in hygienic stainless steel tankers, so it is safe to drink.

Water Tank Hire in Waikato

Water Tank Hire

If you require a temporary water supply for a construction site or event, hiring a water tank is the ideal solution. Talk to us today to find out more about hiring our water tanks.

Grease Trap Cleaning in Waikato

Grease Trap Cleaning

It's important to have your grease trap cleaned regularly to help maintain the system and keep a hygienic environment. Let our team take care of your grease trap cleaning with a regular maintenance schedule

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Flooding & Emergency Spills

With a fleet of over 8 modern vacuum trucks and 5 hydrovac units, we can remove bulk liquid waste quickly. We also have several trailers that allow us to remove up to 25,000 litres in a load.

Why Choose Us?

With CST, you’re choosing more than just a service provider. We’re your partners in maintaining the health and efficiency of your property. Our decades of experience mean we’ve seen it all and know how to solve your problems before they grow into larger issues. Our team of dedicated professionals are trained to provide expert service while treating your home or business with the care and respect it deserves.

We are a family owned business
As a family-owned business, CST is built on strong values of trust, honesty and genuine care for the people we serve. We treat every home and business as if it were our own, delivering reliable property services with a personal approach, dependable workmanship and long-term relationships at the heart of everything we do.

Industrial, Water & Septic Services in Waikato
a hydro excavation technician working with the equipment

Highly Skilled Technicians

Whether you need routine maintenance, help with a blocked drain, an inspection to identify an issue, or specialist excavation support for a larger project, our experienced team has the equipment and expertise to get the job done safely and efficiently.

Our highly skilled service technicians are equipped to tackle everything from everyday residential jobs through to complex commercial, rural and civil projects. Whatever the job, you can count on us for responsive service, quality workmanship and practical solutions you can trust.

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What Our Customers Say About Us!

 
 
 
 
 
 
 
  
 
 
 
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 Rob James profile picture 
 
 
 Rob James 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5 
  
 
  
 
 
 
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 Debra Graham profile picture 
 
 
 Debra Graham 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5 
Can’t remember his name but he had delivered water to us before. He was on time, very quick and friendly and we were very grateful for a tanker load of water
  
 
  
 
 
 
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 Paul Donaldson profile picture 
 
 
 Paul Donaldson 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5 
What a super professional company to deal with in the Waikato,  they answer there phone and are across all H&S requirements for my civil sites with deliveries on time every time.  A++
  
 
  
 
 
 
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 Dennis Moore profile picture 
 
 
 Dennis Moore 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5 
Excellent. Courteous and prompt service. Thank you
  
 
  
 
 
 
 Posted on Google Google 
 
 Vjerna Vujevich profile picture 
 
 
 Vjerna Vujevich 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5 
Very happy with the service I received.  Appreciate the serviceman taking the time to give good advice on maintaining the filter.
  
 
  
 
 
 
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 Ewa Strick profile picture 
 
 
 Ewa Strick 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5 
Very good communication, reliable
  
 
  
 
 
 
 Posted on Google Google 
 
 Andrea Bell profile picture 
 
 
 Andrea Bell 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5 
Awesome service from Aaron at CST group today. He was friendly knowledgeable got the job done promptly. Really appreciate the great customer service 👍
  
 
  
 
 
 
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 Zac Griffin profile picture 
 
 
 Zac Griffin 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5 
We had Paddy as our technician, lovely guy, very helpful and solved an issue we didn’t know we had. Would highly recommend
  
 
  
 
 
 
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 Ryleigh McAra profile picture 
 
 
 Ryleigh McAra 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5 
Had our septic tank cleaned out by Paddy. He was quick, efficient and did a good job.  Highly recommend!
  
 
  
 
 
 
 Posted on Google Google 
 
 Anita Mills profile picture 
 
 
 Anita Mills 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5 
Awesome service! Exceptional to deal with, thank you.
  
 
  
 
 
 
 
 
 
 Google rating score: 4.9 of 5, based on 753 reviews

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    CST Group – Septic and Drain Services

    Our comprehensive range of services includes septic tank maintenance, water delivery, precise hydro excavation, thorough CCTV drain inspections, jetting, and more!

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