Regrouting a Shower: Expect These Leak Prevention Tips

Have you noticed water pooling on the bathroom floor outside your shower? The grout lines may appear cracked or stained, and a persistent musty smell lingers despite your best cleaning efforts. You might also see the paint on the wall opposite the shower bubbling or the timber door frame swelling due to excess moisture.

It’s easy to assume that a pipe has burst behind the wall. in many cases, water leaks through damaged grout and worn-out silicone. A simple regrouting and resealing process can effectively stop that leak without needing to remove any tiles.

This detailed guide explains when regrouting your shower is an effective solution for leaks and when it may not suffice. You’ll also find comprehensive information about the regrouting process when you opt to work with Leaking Showers Sealed, including how long to avoid using the shower afterward. If you suspect that the grout is causing the issue, our dedicated shower regrouting page provides an extensive overview of our services in North Richmond, the Hills District, and the North Shore.

Can Regrouting Effectively Fix My Shower Leak?

• Regrouting can successfully stop leaks caused by water escaping through damaged grout or silicone.
• We replace old grout with Ardex EG15 epoxy grout, a non-porous material, and reseal corners and junctions with Ardex neutral cure silicone.
• Your tiles remain intact, allowing you to fix a leaking shower without extensive renovations or tile removal.
• If the leak is due to a faulty pipe, drain, or tap, you need to consult a plumber. A compromised membrane beneath the tiles will require tile removal, meaning a regrout won’t resolve these problems.
• It’s advisable to wait at least 24 hours before using the shower again.

Contact Leaking Showers Sealed if you’ve noticed mouldy grout, a damp smell, or water leaking from your shower.

Understanding Shower Regrouting and Its Importance

Shower regrouting is the process of removing old, cracked, or mouldy grout from between your shower tiles and applying new grout to restore the seal between the joints. At Leaking Showers Sealed, we use Ardex EG15 epoxy grout, which is non-porous and prevents water and mould from penetrating like conventional cement grout.

Over time, grout can deteriorate due to exposure to hot water, cleaning products, and minor structural shifts. This wear leads to cracks and pinholes that allow water to seep into the joints, even when the tiles appear unaffected. Often, this damage remains concealed as water collects behind the tiles and under the shower floor.

Regrouting restores these joints, making the shower watertight again. It also removes unsightly stained grout lines that can make an otherwise clean bathroom look outdated, all without the cost and disruption of a complete renovation.

Does Regrouting Completely Eliminate Shower Leaks?

Regrouting effectively addresses leaks that occur when water escapes through damaged grout or silicone, which are common sources of shower leaks. The first step is to identify the source of the water to assess if regrouting is the right solution.

When Is Regrouting and Resealing the Optimal Solution?

Regrouting and resealing is the best option when you observe cracked, crumbling, or missing grout, or mould that returns shortly after cleaning. It is also effective if the silicone around corners and the shower base has split or detached. In these situations, the tiles remain intact, and water leaks through the joints.

When Should You Call a Plumber Instead of Regrouting?

If the leak originates from a pipe within the wall, the shower drain, or a tap, regrouting will not resolve the issue. We work alongside plumbers, and if our inspection reveals a problem with a pipe, drain, or tap, we will provide a detailed explanation and refer you to a plumber for further assistance.

What If the Waterproofing Membrane Beneath the Tiles Is Damaged?

A waterproofing membrane is located behind the tiles and under the shower floor. Prolonged exposure to water through the grout can compromise this membrane. Replacing a failing membrane involves tile removal, categorised as renovation work that we do not perform.

Andreas, who holds NSW licence 89111C, is an expert in waterproofing. Our team is trained to identify a failed membrane. If we discover during our inspection that your shower requires more than just a regrout, we will inform you before commencing any work.

Addressing the issue promptly at the first signs of trouble helps protect the membrane. Fresh epoxy grout and new silicone create a barrier against water, making it crucial to tackle cracked grout before further damage occurs.

How to Identify the Need for Shower Regrouting

Be on the lookout for these signs that indicate your shower may be leaking through the grout and silicone:

• Cracked, loose, or missing grout between the tiles
• Mould that quickly returns after cleaning
• Damp odours or visible moisture damage near the shower
• Water pooling outside the shower or leaking into surrounding areas
• Bubbling paint, discoloured walls, or soft floorboards
• Tiles that feel loose or sound hollow when tapped

If you notice any of these symptoms, it’s likely that the grout and silicone are no longer effectively retaining water within the shower. Tiles that sound hollow when tapped, often referred to as drummy tiles, may need to be refixed before the shower can be resealed, and we check for these during our inspection.

What to Anticipate During the Regrouting Process with Leaking Showers Sealed

The regrouting process at Leaking Showers Sealed consists of five crucial steps, ensuring that your tiles remain undisturbed throughout.

Step 1: Inspecting the Shower and Identifying the Source of the Leak

We conduct a thorough examination of the grout, silicone, tiles, and surrounding areas to pinpoint where the water is escaping. If our inspection reveals a problem with a pipe, drain, or tap, we will inform you before scheduling any regrouting.

Step 2: Removing Old Grout and Silicone

We meticulously cut out the old grout and remove all existing silicone, including any layers applied over previous silicone. New grout cannot bond effectively to old grout, making it essential to start with a clean base.

Step 3: Thoroughly Cleaning the Tiles and Exposed Joints

We ensure the tiles and empty joints are completely cleaned to eliminate soap scum, dust, and mould, guaranteeing that the new grout adheres effectively to a pristine surface.

Step 4: Applying Epoxy Grout to Regrout the Shower

We fill the joints with Ardex EG15 epoxy grout. For a shower base seal, we regrout the shower floor, the junction where the floor meets the wall, and the perimeter. To provide a complete shower seal, we also regrout every wall grout line.

Step 5: Resealing Corners, Junctions, and Tap Flanges

We apply Ardex ST neutral cure silicone to reseal internal corners and junctions. To ensure a full shower seal, we also seal the tap flanges.

Generally, a shower base seal takes about 3 to 4 hours to complete, while a full shower seal for both walls and floor usually requires 4 to 5 hours. You must wait at least 24 hours before using the shower again to allow the grout and silicone to cure properly.

Can Regrouting Eliminate Shower Mould?

Regrouting effectively removes mould that has infiltrated the grout, as the mouldy grout is replaced. Surface cleaning with bleach or mould sprays only addresses the top layer, allowing mould to return since it resides within the grout where water gets trapped. For more information on why shower grout becomes stained and damaged, please refer to our guide.

Can Regrouting Help You Avoid a Full Bathroom Renovation?

For many homeowners, regrouting provides a practical solution to delay or avoid a complete bathroom renovation. If the tiles are in good condition and the leak can be traced back to the grout and silicone, a regrout and reseal will restore the shower’s watertight integrity. This approach also gives you extra time to save for a future renovation.

A regrout, reseal, and thorough clean can also serve as an effective refresh before listing a home for sale or for landlords between tenant occupancies. Our article on regrouting a shower as a cost-effective renovation illustrates how significantly a regrout can enhance a bathroom’s appearance.

Is DIY Regrouting a Shower a Viable Option?

While DIY grout kits are readily available at hardware stores, regrouting a shower correctly involves more complexity than it seems. Without the right tools and expertise, you risk:

• Damaging or cracking tiles during the removal of old grout
• Leaving remnants of old grout in the joints, hindering the proper bonding of new grout
• Overlooking silicone joints, which are common sources of leaks
• Failing to identify a leak from a pipe or a compromised membrane

If you are unsure about the source of the water, it’s wise to have the shower inspected before purchasing a DIY kit.

What Is the Cost of Shower Regrouting?

The cost of regrouting a shower varies based on several factors:

• Tile size, as smaller mosaics and 100mm tiles have more grout lines compared to larger 300mm or 600mm tiles
• The dimensions and layout of the shower, including features such as double showers, niches, and additional corners
• The condition of the grout and silicone, including issues like extensive mould, silicone layered over old silicone, or previous repairs needing removal
• Drummy or loose tiles that require refixing before resealing the shower

Regrouting is significantly more economical than a complete bathroom renovation or retiling. For a cost estimate, please send photos of the shower floor, walls, and the entire shower to sales@leakingshowerssealed.com.au, or call 1300 815 512.

Frequently Asked Questions About Shower Regrouting

How long does it take to regrout a shower?
A shower base seal typically requires about 3 to 4 hours on site, while a complete shower seal for both walls and floor takes around 4 to 5 hours. Ensure you allow at least 24 hours before using the shower again.

Will regrouting stop a leak?
Yes, if the leak is due to damaged grout or silicone. Regrouting will not fix leaks from a pipe, drain, or tap, which require a plumber, nor will it address a failed membrane, which necessitates tile removal.

How often should a shower be regrouted?
The frequency of regrouting depends on the type of grout used, the bathroom’s ventilation, and the cleaning methods employed. Signs that indicate the need for regrouting include cracked grout, recurring mould, and persistent damp odours. Our article on how long shower regrouting lasts outlines the factors that influence this.

Can you apply new grout over old grout?
No. New grout applied over existing grout will not bond effectively and will not fix the leak. It is crucial to remove all old grout before regrouting the shower.

<a href="https://homerenonews.com.au/regrouting-a-shower-tips-to-prevent-leaks-and-prepare/">Is regrouting covered by warranty?</a>
Yes. A regrout and reseal includes a 10-year warranty on Ardex products and a 7-year workmanship warranty from Leaking Showers Sealed, contingent upon a site assessment.

Why Choose Leaking Showers Sealed for Your Shower Regrouting Needs?

• Since 2016, we have specialised in regrouting and resealing showers without the need to remove tiles.
• We utilise Ardex EG15 epoxy grout and Ardex ST neutral cure silicone for outstanding results.
• Every regrout and reseal is backed by a 10-year warranty on Ardex products and a 7-year workmanship warranty, subject to site assessment.
• We have received over 300 Google reviews across our three locations.
• Our services include regrouting and resealing showers throughout North Richmond, the Hills District, and the North Shore of Sydney.

If your shower is leaking, do not hesitate to address the potential damage occurring behind the tiles. Send us photos of your shower or contact us to schedule an inspection. We will evaluate whether a regrout and reseal can effectively stop the leak.