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** JULY  PROMOTION **  Book a shower installation before July 31st 2024 to receive a 10% discount off your installation.

Guaranteed Shower Installations

Our company Guaranteed Shower Installations specialises in a niche market of the building industry – showers.

Our focus is on showers, supply, installations, repairs, and all technical aspects of shower design, delivering quality work every time.

We understand that the problems you will face in the future can be solved in the present, because of this focus we will not install unless we are 100% satisfied the shower will stand the test of time. GSI works with our customers communicating with site tradesmen, suppliers, and manufacturers of the shower to ensure the installation runs smoothly without disruption.

Our entire team is available to solve problems that have not been identified yet. Showers are the most utilized amenity in any bathroom; therefore it is critical a certified professional installs your shower. Choosing Guaranteed Shower Installations is the best decision for your customer, their home and health.



Professional & Reliable

We have been using GSI as our preferred shower installer for the past 8 months.We have found them to be professional and reliable and their workmanship first class.I have no hesitation in recommending them to anyone requiring their services.

Greg Cawley
Managing Director



Thoroughly Recommend

GSI have just replaced a shower for us in an apartment in Auckland city. We were very fortunate to find GSI as they were able to replace the shower from the tray up without the need to damage tiles or create issues with the existing waterproofing. The shower now looks brand new. The calm “can do” attitude of Rob and his team was much appreciated. We would thoroughly recommend GSI for any shower installations.

Jan and Greg Ward



No Reservations

We (NZRC) have utilized GSI’s specialist services for many years, and have always been rewarded with prompt and reliable service. I would have no reservations in recommending their team for any shower installations and related work.

Darrel Assink
Managing Director
New Zealand Renovation Company


Transform your bathroom with a new shower installation from GSI. Enquire today for a free quote and consultation.

Don’t want to wait, call us today: 0800 466 532

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