Floor preparation is crucial for a bathroom renovation & can you thousands in potential repairs and problems down the track.


Why floor preparation is crucial for a bathroom renovation & can save you thousands in repairs.

What did we discover while preparing the flooring for this bathroom renovation?

Our latest project in Clovelly is for a small bathroom renovation that required a full strip back of the existing bathroom. Unfortunately something that we couldn’t predict was the state of the walls or floors once everything was removed. In this case a previous builder had installed Yellow Tongue and Groove flooring instead of Fibro Cement Sheeting. 

Bathrooms, toilet, laundries and even kitchens need to have the floor fully waterproofed and you can’t ‘seal’ or waterproof directly onto Yellow Tongue & Groove flooring. Using this material is illegal and frowned upon. Typically it is done to reduce costs or to do projects quickly.

What issues can poor flooring preparation lead to for a bathroom renovation?

There is a risk when using Yellow Tongue & Groove flooring for a bathroom renovation because if the existing water proofing starts to leak it can potentially damage the timber underneath. This can lead to rotting, tiles lifting and if its on the second storey the floor could collapse on people below.


So for this renovation we had a choice to make;

a) Turn a blind eye and continue with the renovation and hope nothing would go wrong.

b) Present the findings to the owner to decide how they wanted to proceed.

How did we fix this flooring preparation problem for this bathroom renovation?

We presented all the possible scenarios to our Client to make sure they were fully aware of the potential issues depending on how we proceeded. This included providing a quotation to remove and replace the Yellow Tongue Flooring with the correct Fibro Cement Sheeting.


Thankfully the Client decided to take this approach and we quickly completed the demolition, removal and replacement in a day so that it didn’t slow down the progress of the renovation project.


It has also meant we are working with a framework that we have corrected to meet Australian Standards. It meant we could get the room repaired and prepped with;

a) Puddle Leak Control Flanges

b) Finished Electrical rough in

c) Plumbing rough in 

this meant the room was now ready for wall sheeting and then water proofing 

What did this extra floor preparation work cost?

For this scale of room the extra floor preparation cost could be between $3,000 and $6,000 depending on size and access of bathroom which would include;

a) Removing the existing flooring

b) Re-bracing the timber structure

c) Supplying new Fibro Cement Flooring

d) Installing the new flooring.


When doing the initial obligation free quote for this bathroom renovation we didn’t allow for this because in 95% of cases the bathroom flooring has had the correct materials used and hence this type of correction isn’t required.


As this is a very high risk safety aspect it becomes more important than normal to have it corrected. In some cases there could be bathroom renovators who would continue with their work without the property owner being aware of the issue. So this becomes an area where the property owner should be engaged with the renovation and ask questions.

Years of experience

Nu-Trend since 2009

Nu-Trend was formed just over 10 years ago by father and son team, Rick and Michael Karagiannis.

Michael has been in the industry for more than 20 years, passing his knowledge and expertise to Rick as the family tradition lives on.

Rick has always enjoyed the finer elements design details. Not content with solving plumbing problems he soon broadened his skills to also do bathroom renovations in Sydney. A perfect match with hundreds of reviews later & beautiful bathrooms being enjoyed by hundreds of people.


Rick from Nu-Trend Plumbing and Bathroom Renovations

The passionate business owner who loves his job, always goes the extra mile & who many say “is too good for the industry”

Rick dislikes the typical industry behaviour and firmly believes in ‘no gimmicks’ and upfront, honest work.

  • Position: Director
  • Years in the industry: 15
  • Expertise / specialty: A hands-on Director and business owner who provides leadership for the team.
  • Qualifications: Licensed Plumber, Bathroom Renovator.
  • What he loves about his work? I love helping people when someone wants something and we achieve what they are after it’s rewarding for me.
  • Funniest on the job story: Doing a job on a live sewer stack and someone flushing the toilet while we were underneath. It was quite brown, but you had to laugh.
  • Favourite brand of bathroom product: Caroma Products


Why floor preparation is crucial for a bathroom renovation photo

Robert is the co-owner of Nu-Trend who loves walking into different scenarios every day & trying to solve problems quickly. 

He is the organiser in the team, keeping the boys on track each day. Some dub him the ‘pretty face’ of Nu-Trend. 

  • Position: Director
  • Years in industry: 14
  • Expertise / specialty: Quoting, team organisation and logistics to keep everything running smoothly.
  • Qualifications: Licensed Plumber and Bathroom Renovator.
  • What he loves about his work? Doing something different every day and working with really good people to solve a range of everyday problems.
  • Funniest on the job story: Pranking the boys with fake emails or calls and waiting to see their reactions. Funny at times but a good way to practice real situations.
  • Favourite brand of bathroom product: Boffi Products


Why floor preparation is crucial for a bathroom renovation photo

Chris joined Rick and Robert a few years ago as the number of jobs and bathroom renovations began to increase.

Ever reliable Chris gets stuck in when the hard work is required and provides the Nu-Trend team with a lot of the hard yakka.

  • Position: Plumber
  • Years in industry: 6
  • Expertise / specialty: Maintenance and domestic plumbing for houses or unit apartment blocks.
  • Qualifications: Licensed Plumber with aspirations to learn about renovations.
  • What he loves about his work?  Seeing Nu-Trend customers satisfied after a completed job where they notice the little details or finishing touches.
  • Funniest on the job story: Too many to list and he has been thinking about writing a book about funny plumber stories for everyone to read about.
  • Favourite brand of bathroom product: Boffi Products

Local | Licensed | Insured

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Protection for your renovation project.

Contract a local Sydney renovator.


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INSURED $20,000,000

Public liability insurance for peace of mind.

Drainer  |   Gasfitter  |  Plumber  |  LP Gasfitter 

 Kitchen, Bathroom and Laundry Renovator

Nu-Trend is a renovations company in Sydney that is available 7 days a week. With 15 years experience, the Directors Rob and Rick are hands-on, and provide a personalised service that is fully licensed, insured and qualified.

You can check online with the NSW Department of Fair Trading here


All the work carried out by Nu-Trend is AS/NZ3500:2018 compliant. It is the Australian Standard for Plumbing and Drainage in NSW as set down by Standards Australia and the Australian Building Codes Board. They give the plumbing industry technical direction to enable compliance with required regulatory frameworks.

A personal, written, committment.

The Nu-Trend service guarantee

Rick and Rob are the hands-on Directors for Nu-Trend Plumbing. Rather than hire sub-contractors and manage their business from a distant office, they are on the tools, at your site & working towards delivering your bathroom renovation or plumbing service. It means you are talking directly to the owners of the business, the guys who are accountable and responsible rather than via email or through customer service teams.

It is why they are able to provide a written guarantee that demonstrates their confidence in standing by the quality of their workmanship and the service they deliver to every single client.

They have a very single minded commitment to deliver a high level of professionalism and quality.

Nu-Trend plumbing and bathroom renovation Satisfaction Guarantee

No sales tricks, guaranteed.

'No Gimmicks' that's our policy

With so many years in the trade, the Nu-Trend team has seen their fair share of sales tricks, special offers, promotions and other gimmicks to secure business. Rather than copy what everyone else is doing they decided a long time ago to avoid all the typical gimmicks and stick to clear, upfront information and pricing, including the provision of free Quotes. 

Here are the most common sales gimmicks you will see and how they work, keep in mind there is a reason most service industries don’t disclose fixed prices.

Real examples, real jobs.

Nu-Trend at work

Rather than use lots of photos copied from Google or from bathroom suppliers the Nu-Trend team shares real life examples of their work. Take a look at some of the bathroom renovations or local plumber jobs they have done around Sydney.

Rick Karagiannis - Plumber & Bathroom Renovator

Rick Karagiannis - Plumber & Bathroom Renovator

Rick Karagiannis is a licensed Plumber, Building Renovator and Director of Nu-Trend, a Sydney Plumber and Bathroom Renovations contractor. Nu-Trend has been operating since 2009 as an independent sole trader in Sydney. Rick provides all types of services for small bathroom renovations, leaking tap repairs, hot water high-pressure jet blasting and more.