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Concrete Pool Renovation: Expert Advice Before You Begin

Written by

Donna Richmond

, Auckland Inground Pools

16 June 2026

 • 

5 min read

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A tired old pool can quietly become the forgotten corner of an otherwise beautiful home. Cracked plaster, dated tiles, ageing equipment, and rising maintenance costs can all take the enjoyment out of pool ownership. The good news? With the right renovation strategy, that same pool can become the centrepiece of your outdoor living space for decades to come. From replastering and modern finishes through to equipment upgrades, automation, heating, and energy efficiency, here's what every homeowner should know before embarking on a concrete pool renovation.

Renovating an older concrete pool is one of the most rewarding upgrades you can make to your home, but getting it right starts well before any tools hit site.

The first step is understanding exactly what you’re working with.

An experienced pool builder will be able to advise what needs attention, and why. What is a must do right now, what is a nice to have, the crumbling plaster, missing waterline tiles, cracked coping and pool surrounds, noisy pumps, inadequate filtration, lights that haven't worked forever, cracks in the pool structure - so many things to list!

Start with a conversation. Talk through how you use your pool, what’s frustrating you, and what you’d love it to become. Then a site inspection should follow.

A good operator won’t just agree with you — they’ll challenge your thinking, point out risks, and guide you toward the best long-term outcome.

This is also the time to get clear on site access, sequencing, and how the pool renovation fits alongside any wider landscaping or other works happening around the property. Done properly, it should all feel well aligned, not like separate projects stitched together later.

If you’re obtaining multiple quotes, be careful. Pool renovation proposals are rarely like-for-like.

Differences in scope, materials, and methodology can be significant, even if the numbers look similar.

Choose your builder first, then refine the scope together. That’s where the real value sits.


WHAT TO UPGRADE AND WHAT ACTUALLY MATTERS

Replastering is often the biggest pain point, but it’s only one piece of the puzzle.

A well-planned renovation looks at the pool holistically - structure, finishes, hydraulics, and how the space is used day-to-day.

Typical upgrades include:

  • New interior plaster finish to refresh the look and extend lifespan
  • Replacement waterline tiles to lift the aesthetic and improve durability
  • Updated coping and surrounds to modernise the entire outdoor area
  • Equipment upgrades to improve water quality, efficiency, and ease of use
  • New features such as the addition of a spa pool, new steps or a bench seat

Done well, a renovation should give you another 20–25 years out of your pool, maybe more if you're great with the maintenance, with far less ongoing hassle.

BRINGING A TIRED OLD POOL INTO 2026

This is where things have really moved on.

Modern pool renovations aren’t just about looks, they’re about performance, simplicity, and creating a space that actually works for how people live now.

Lighting, for example, has shifted from basic functionality to a key design feature. Subtle LED lighting can completely transform the feel of a pool at night.

Automation has become the norm for quality builds and renovations. Heating, filtration, lighting, and water balance can all be controlled remotely, meaning less manual intervention and more consistent water quality.

Mineral salt systems and automated dosing take the guesswork out of pool care, helping protect your investment while keeping the water clean and comfortable to swim in, and less manual input from you.

And while fully tiled pools and spas are gaining popularity, they do come with a higher price tag, but your pool will almost become bullet proof!

For many homeowners, a carefully selected plaster finish paired with quality waterline tiles achieves a timeless look with a fair and reasonable cost.

The key is balance. Knowing where to invest, and where a simpler solution will still deliver a premium result.


DESIGNING FOR LONGEVITY, AND EFFICIENCY


A renovation is the perfect opportunity to improve how your pool performs behind the scenes.

Energy efficiency and water management should be considered from the outset — not added as an afterthought. If the pool plant and equipment is tired and old, then this is what should be considered first - the 'brains' of the pool before the 'looks'.

Upgrading to a variable speed pump, for example, allows the system to run more efficiently and quietly, reducing power consumption over time.

Heating systems have also improved significantly, making it easier to extend the swimming season without excessive running costs, and some come equipped ready to hook into your PV solar system.

Simple design decisions, like appropriate coping overhang to reduce splash-out, or improving hydraulic flow all contribute to a pool that’s easier and more cost-effective to maintain.

As a Climate Care Certified builder, Auckland Inground Pools places a strong focus on reducing environmental impact while improving performance. The result is a pool that not only looks great but works smarter over the long term.


CHOOSING THE RIGHT TEAM

This is where many projects succeed — or fall over.

A concrete pool renovation is not a small undertaking. It requires coordination, experience, and attention to detail at every stage.

The cheapest option is rarely the best outcome.

What matters is having a team that understands the full process, communicates clearly, and takes ownership of the job from start to finish. That means consistent people on site, proper sequencing of works, and no grey areas around responsibility.

When it’s done properly, the experience should feel straightforward — and the end result should speak for itself.



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