Concrete Water Tank Refurbishment
Concrete Water Tank Refurbishment and Liner Refurbishment & Repairs
Concrete water tanks are built to last, but over time they can suffer from wear that affects performance, water-tight integrity, and usability. If your tank is leaking, staining, shedding material, or simply showing its age, Crystal Clear Pool Services can help with concrete water tank liner refurbishment and practical concrete tank repairs across Tauranga and the surrounding areas.

When to Refurbish a Concrete Water Tank
Many tank issues start small and build over time. Refurbishment can be a smart option when the structure is generally sound, but the surface and liner condition is no longer performing as it should.
Common signs your concrete tank may need attention include:
- Ongoing or increasing leaks
- Damp patches or weeping through walls
- Flaking, chalking, or surface deterioration inside the tank
- Staining or discolouration that's difficult to manage
- Cracks that are worsening or reappearing after patching
- Reduced confidence in the tank's reliability, particularly before winter
A proper assessment is important because not every tank requires the same solution. Some tanks need targeted repairs and resealing, while others benefit from a more complete internal refurbishment approach.

Concrete Water Tank Liner Refurbishment
Concrete tank liners and internal coatings play a major role in keeping a tank water-tight and stable. If the internal surface has degraded, refurbishment can improve tank performance and reduce water loss.
A quality liner refurbishment job is not just "painting over" the issue. Preparation and repair work are where the long-term value is created. We focus on the fundamentals that help coatings and liners bond correctly and last longer, including cleaning, surface preparation, crack treatment, and appropriate repair methods based on the tank's condition.
Concrete Water Tank Repairs and Refurbishment
In addition to liners and internal surfaces, we can assist with broader concrete tank refurbishment where the tank is showing structural wear, surface breakdown, or persistent performance issues. The right fix depends on the tank's construction and the nature of the deterioration, so we approach each job with careful assessment and clear recommendations.
Where appropriate, repairs may include addressing cracks, patching deteriorated areas, and improving water-tight integrity so the tank can be relied on again. If a tank is beyond practical refurbishment, we'll be upfront about that too, so you can make an informed decision.
Our Refurbishment Process
Every tank is different, but our approach follows a clear and methodical process to achieve consistent results.
1) Inspection and Condition Assessment
We start by checking the tank's current condition and identifying likely causes of leakage or deterioration. This step helps avoid guesswork and ensures the repair plan is based on what the tank actually needs, not a generic approach.
2) Surface Preparation
Preparation is critical. Depending on the tank condition, this can involve internal cleaning, removal of loose or deteriorated material, and preparing the surface so repairs and coatings can adhere properly. Done correctly, this improves the effectiveness and lifespan of the refurbishment.
3) Targeted Repairs
Cracks and weak points need to be repaired correctly before any liner or coating work proceeds. Addressing the underlying issues first helps prevent repeat failures and supports a more durable final result.
4) Liner or Coating Refurbishment
Where a liner or internal coating is part of the solution, we apply the refurbishment method suited to the tank's needs and intended use. The aim is a clean, stable internal finish that supports water-tight performance.
5) Final Checks and Practical Handover
We finish with final checks and share practical guidance on ongoing care. If the tank is being used for household supply, we strongly recommend following best practice for water management, including appropriate filtration and regular water testing.
Water Quality and Safety Notes
If your tank water is used for household purposes, water quality is an important part of the overall conversation. While we focus on the physical refurbishment of the tank and liner, it's wise to follow recognised guidance for safe rainwater storage and management, including filtration and testing where appropriate. General information about drinking-water oversight and good practice is available via Taumata Arowai at https://www.taumataarowai.govt.nz/
If plumbing connections or system changes are required, we recommend engaging a suitably qualified professional, as tank performance and water safety often involves more than the tank itself.
Why Choose Crystal Clear Pool Services for Tank Refurbishment?
We bring a practical, detail-focused approach and a high standard of workmanship. As an owner-operated business, you're dealing with someone who takes pride in doing the job properly, not rushing to tick a box. We'll explain what we're seeing, what the realistic options are, and what outcomes you can expect based on the tank's current condition.
Clients choose us because they want:
- Straightforward advice and clear communication
- Quality repairs and refurbishment work
- A durable, long-term mindset rather than short-term patching
- A team who understands water assets and how they should perform
Give Jonas a call on 027 288 2711
or leave a message using the form below:
Our other services

In-Ground Pool Building
Building an in-ground pool is a long-term investment that adds both value and enjoyment to your property.Read more
Pool Maintenance
A well-maintained pool is a safe pool, and consistent care prevents avoidable breakdowns and water issues.Read more
Swimming Pool Valet Services
Our monthly valet service is not just cleaning - it's a detailed check of your pool water and equipment condition.Read more
Pool Builds
We specialise in liner pool construction and manage the process from planning through to completion, delivering a pool designed around your needs.Read more
Paramount Liner Pool Builds and Liner Replacements
We install quality liners with careful preparation and precise fitting, including Para and Paramount style liners where suitable.Read moreEnquiries
Contact us
Give Us a Call On
027 288 2711or leave a message using the form below
- Tauranga, Bay of Plenty
- Mon-Fri: 8am - 5pm
- jonas.crystalclearpool@gmail.com
