Regrouting a Shower: Essential Tips for Leak Prevention

Have you noticed water pooling on the bathroom floor outside your shower? You may see cracked or discoloured grout lines, and a persistent musty smell hangs in the air despite your thorough cleaning efforts. Perhaps the paint on the adjacent wall is starting to bubble, or the timber door frame near the shower is swelling due to excessive moisture.

It’s tempting to assume a pipe has burst behind the wall. in many cases, water seeps through damaged grout and degraded silicone. A simple regrouting and resealing process can effectively eliminate that leak without the need for tile removal.

This guide explains when regrouting your shower can successfully resolve a leak and when it may not be sufficient. You will also learn about the regrouting process if you decide to engage with Leaking Showers Sealed, including how long you should refrain from using the shower afterward. If you suspect that the grout is the cause of the issue, our dedicated shower regrouting page offers a detailed overview of our regrouting services available in North Richmond, the Hills District, and the North Shore.

Can Regrouting Effectively Resolve My Shower Leak?

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

Contact Leaking Showers Sealed if you notice mouldy grout, a damp smell, or water leaking around your shower.

Exploring Shower Regrouting and Its Importance

Shower regrouting involves 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, unlike traditional cement grout.

Over time, grout deteriorates due to exposure to hot water, cleaning chemicals, and minor structural movements. This deterioration results in cracks and pinholes that allow water to seep through the joints, even when the tiles themselves appear intact. Often, this damage remains hidden as water accumulates behind the tiles and beneath the shower floor.

Regrouting restores these joints, making the shower watertight once again. It also eliminates unsightly stained grout lines that can make a clean bathroom look aged, all without the cost and disruption of a full renovation.

Will Regrouting My Shower Fix the Leaks?

Regrouting effectively addresses leaks when water escapes through compromised grout or silicone, which are frequent causes of shower leaks. The first step is to identify the source of the water to determine if regrouting is an appropriate solution.

When Is Regrouting and Resealing the Right Choice?

Regrouting and resealing is the best option when you observe cracked, crumbling, or missing grout, or mould that returns after cleaning. It is also effective if the silicone around corners and the shower base has split or come away. In these cases, 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 solve the problem. We work closely with plumbers, and if our inspection reveals an issue with a pipe, drain, or tap, we will provide a thorough explanation and refer you to a plumber for further assistance.

What If the Waterproofing Membrane Beneath the Tiles Is Compromised?

A waterproofing membrane is located behind the tiles and under the shower floor. Prolonged exposure to water through the grout can damage this membrane. Replacing a failing membrane requires tile removal, categorising it as renovation work that we do not undertake.

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 needs more than just a regrout, we will inform you prior to beginning any work.

Addressing the issue promptly at the first signs of trouble is crucial to protect the membrane. New epoxy grout and silicone create a barrier against water, making it essential to fix cracked grout before further damage occurs.

How to Identify the Need for Shower Regrouting

Look out for the following signs that indicate your shower may be leaking through the grout and silicone:

• Cracked, loose, or missing grout between the tiles
• Mould that quickly reappears after cleaning
• Damp odours or visible moisture damage near the shower
• Water pooling outside the shower or leaking into adjacent 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 keeping water contained within the shower. Tiles that sound hollow when tapped, known as drummy tiles, may need refixing before the shower can be resealed, and we check for these during our inspection.

What to Expect When Regrouting Your Shower 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 Leak

We perform a comprehensive examination of the grout, silicone, tiles, and surrounding areas to identify where the water is escaping. If our inspection uncovers an issue with a pipe, drain, or tap, we will inform you before scheduling any regrouting.

Step 2: Removing Old Grout and Silicone

We carefully 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 crucial to start with a clean surface.

Step 3: Thoroughly Cleaning the Tiles and Exposed Joints

We ensure the tiles and empty joints are meticulously cleaned to remove 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 floor-to-wall junction, and the perimeter. For 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 achieve a complete shower seal, we ensure the tap flanges are also sealed.

On average, 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 Remove Shower Mould?

Regrouting effectively eliminates mould that has penetrated the grout, as the mouldy grout is replaced. Surface cleaning with bleach or mould sprays only targets the top layer, leading to a resurgence of mould 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 serves as a practical approach to delay or avoid a complete bathroom renovation. If the tiles are in good condition and the leak is traced to the grout and silicone, a regrout and reseal will restore the shower’s watertight integrity. This method also allows you extra time to save for a future renovation.

A regrout, reseal, and thorough clean can also act as an effective refresh before putting a home on the market 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 Practical Choice?

While DIY grout kits are readily available at hardware stores, regrouting a shower correctly is more complicated 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, preventing proper bonding of new grout
• Overlooking silicone joints, which are often sources of leaks
• Failing to identify a leak from a pipe or a compromised membrane

If you are uncertain about the source of the water, it is 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 prior to resealing the shower

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

Common Queries Regarding Shower Regrouting

<a href="https://writebuff.com/stop-a-leaking-shower-without-removing-tiles-essential-tips-for-homeowners/">How long does it take to regrout a shower?</a>
A shower base seal typically requires around 3 to 4 hours on site, while a complete shower seal for both walls and floor takes approximately 4 to 5 hours. Please allow at least 24 hours before using the shower again.

Will regrouting stop a leak?
Yes, if the leak stems from damaged grout or silicone. Regrouting will not resolve 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 practices 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 explains the factors that influence this.

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

Is regrouting covered by warranty?
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 removing tiles.
• We utilise Ardex EG15 epoxy grout and Ardex ST neutral cure silicone for exceptional 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 accumulated over 300 Google reviews across our three locations.
• Our services encompass regrouting and resealing showers throughout North Richmond, the Hills District, and the North Shore of Sydney.

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