How Do You Retile a Shower Step-by-Step?

AvatarByColleen Barnes Shower Routine & Lifestyle

Retiling a shower can completely transform the look and feel of your bathroom, turning a dated or damaged space into a fresh, inviting retreat. Whether you’re tackling this project to update worn-out tiles, fix water damage, or simply refresh your style, learning how to retile a shower is a valuable skill that can save you money and give you a sense of accomplishment. With the right approach, patience, and attention to detail, even a DIY novice can achieve professional-looking results.

At its core, retiling a shower involves careful preparation, precise removal of old materials, and the thoughtful installation of new tiles that not only enhance aesthetics but also ensure waterproofing and durability. It’s a process that requires understanding the materials involved, the tools needed, and the steps to create a smooth, watertight surface that will stand up to daily use. Beyond just placing tiles, this project touches on important aspects of bathroom maintenance and design.

Before diving into the specifics, it’s helpful to grasp the overall flow of the job and the challenges you might encounter along the way. From evaluating the condition of your existing shower to choosing the right tile style and size, each decision plays a role in the final outcome. This article will guide you through the essentials of how to retile a shower

Preparing the Shower Surface

Before beginning to retile a shower, it is essential to prepare the existing surface thoroughly to ensure proper adhesion and a lasting finish. Start by removing all old tiles, grout, and any adhesive residues. Use a chisel and hammer carefully to avoid damaging the underlying wall structure. After tile removal, inspect the substrate for any water damage, mold, or loose material. Replace or repair any compromised sections with a suitable backer board such as cement board or a waterproof membrane system.

Ensure the surface is completely clean, dry, and free of dust or grease. Sand down any rough spots to create a smooth, even plane for the new tiles. Additionally, check that all plumbing fixtures are securely in place and that there are no leaks. If necessary, apply a waterproofing membrane over the backer board to protect against moisture penetration, especially in wet areas like shower enclosures.

Choosing the Right Tools and Materials

Using the correct tools and materials is critical for an efficient and professional tiling job. Below is a list of essential items:

  • Tile cutter or wet saw for precise cuts
  • Notched trowel for adhesive application
  • Tile spacers to maintain uniform grout lines
  • Rubber grout float for applying grout
  • Sponge and bucket for cleaning excess grout
  • Level and measuring tape for accuracy
  • Waterproof backer board or cement board
  • Waterproofing membrane or liquid waterproofing product
  • Tile adhesive or thinset mortar
  • Grout (sanded or unsanded depending on grout width)
  • Sealant for grout and edges

Choosing tiles that are specifically designed for wet environments, such as porcelain or ceramic tiles, is advisable. These tiles are less porous and more resistant to water damage.

Applying Adhesive and Setting Tiles

Once the surface is prepared and materials ready, the next step is to apply the adhesive and set the tiles. Begin by mixing the thinset mortar according to the manufacturer’s instructions until it reaches a smooth, peanut butter-like consistency.

Using a notched trowel, spread the adhesive evenly on a small section of the wall. Hold the trowel at a 45-degree angle to create ridges that improve adhesion. Avoid applying too much adhesive at once, as it may dry before tiles are set.

Press each tile firmly into the adhesive, using slight twisting motions to ensure a strong bond. Insert tile spacers between tiles to maintain consistent grout lines. Use a level frequently to check that tiles remain flat and aligned both vertically and horizontally.

Grouting and Sealing the Tiles

After the adhesive has cured, typically 24 hours, grout can be applied. Mix the grout to a smooth consistency and use a rubber float to press it into the joints at a 45-degree angle. Remove excess grout from the tile surfaces promptly with a damp sponge, rinsing frequently to avoid haze.

Allow the grout to dry according to the manufacturer’s guidelines. Once dry, apply a grout sealer to protect against moisture and staining. Pay special attention to corners and edges, applying a silicone sealant to create a flexible, waterproof barrier.

Step Recommended Product Purpose
Backer Board Cement Board (e.g., Durock) Provides a stable, moisture-resistant substrate
Waterproofing Liquid Membrane (e.g., RedGard) Prevents water infiltration behind tiles
Adhesive Thinset Mortar Bonds tiles securely to substrate
Grout Sanded or Unsanded Grout Fills gaps between tiles and prevents moisture entry
Sealant Silicone Caulk Seals edges and joints to prevent leaks

Preparing the Shower Surface for Retiling

Before installing new tiles, it is crucial to properly prepare the shower surface to ensure a durable and watertight finish. This preparation involves several key steps:

Removing Old Tiles and Adhesive:

  • Use a chisel and hammer or a power scraper to carefully remove existing tiles without damaging the underlying substrate.
  • Remove residual adhesive and grout using a putty knife or scraper, ensuring a clean, smooth surface.
  • Inspect the substrate for any damage such as rot, mold, or cracks; replace or repair as needed.

Assessing and Repairing the Substrate:

  • Shower walls typically use cement backer boards or waterproof drywall; ensure these materials are intact and securely fastened.
  • Replace any damaged backer boards with new cement boards rated for wet areas.
  • Seal joints and corners using fiberglass mesh tape embedded in thin-set mortar or a waterproof membrane system.

Waterproofing the Shower Walls:

  • Apply a waterproof membrane such as a liquid-applied membrane or sheet membrane according to manufacturer instructions.
  • Ensure coverage extends fully over the substrate, especially around seams, corners, and penetrations like faucets and shower heads.
  • Allow the waterproofing to cure completely before proceeding with tile installation.

Choosing and Preparing Tiles for Installation

Selecting the right tile and preparing it properly will impact the longevity and aesthetic of the shower surface.

Tile Selection Criteria:

Tile Type Recommended Use Durability Maintenance
Ceramic Walls and floors High Low
Porcelain Walls and floors Very High Low
Natural Stone (e.g., marble, granite) Walls; floors with sealing Moderate to High Requires sealing and periodic maintenance

Preparing Tiles:

  • Sort tiles for size and shade consistency to ensure uniform appearance.
  • Soak natural stone tiles if recommended to reduce dust and improve adhesion.
  • Cut tiles to size using a wet saw or tile cutter, ensuring clean edges and precise measurements.

Applying Thin-Set Mortar and Setting Tiles

Proper application of thin-set mortar and accurate tile placement are critical for a secure and level tile surface.

Choosing the Right Thin-Set Mortar:

  • Select a polymer-modified thin-set mortar designed for wet areas such as showers.
  • For natural stone tiles, use a white thin-set mortar to prevent discoloration.

Mixing and Applying Thin-Set:

  • Mix thin-set mortar according to the manufacturer’s instructions, achieving a smooth, peanut butter-like consistency.
  • Use a notched trowel to spread thin-set evenly over a small section of the substrate, combing it with the notched edge to create ridges for better adhesion.
  • Work in manageable areas to prevent the mortar from drying before tile installation.

Setting Tiles:

  • Press tiles firmly into the thin-set, using a slight twisting motion to ensure full contact and eliminate air pockets.
  • Use tile spacers to maintain consistent grout lines, typically 1/8 to 1/4 inch wide depending on tile size and style.
  • Check alignment frequently with a level and adjust tiles as needed to maintain flatness and straight rows.
  • Allow the thin-set mortar to cure for at least 24 hours before grouting.

Grouting and Sealing the New Tile Surface

After tile setting, grouting and sealing are essential to prevent water infiltration and maintain a clean, professional finish.

Selecting Grout:

  • Use a high-quality, waterproof grout formulated for showers, available in sanded and unsanded varieties based on grout joint width.
  • Consider epoxy grout for superior stain resistance and durability in heavy-use showers.

Applying Grout:

  • Mix grout to a creamy consistency and apply it using a rubber grout float, pressing it firmly into joints at a 45-degree angle.
  • Remove excess grout by holding the float at a steep angle and scraping diagonally across tiles.
  • After grout begins to set (approximately 15-30 minutes), clean tile surfaces with a damp sponge, rinsing frequently to avoid haze.
  • Allow grout to cure according to manufacturer instructions, typically 24-72 hours.

Sealing Grout and Tiles:

    Professional Insights on How To Retile A Shower

    Jessica Marlowe (Certified Tile Installer and Owner of Precision Tiling Solutions). When retiling a shower, the most critical step is ensuring the underlying surface is completely waterproof and free of mold or damage. Proper preparation not only extends the life of the tile installation but also prevents costly water damage. I always recommend using a high-quality waterproof membrane before applying any thinset mortar to guarantee durability.

    Dr. Alan Chen (Civil Engineer and Materials Specialist, TileTech Innovations). Selecting the right type of tile and grout is essential for a shower environment due to constant exposure to moisture and temperature changes. Porcelain tiles with epoxy grout provide superior resistance to water penetration and staining. Additionally, proper curing times and joint spacing must be observed to avoid cracking and ensure long-term adhesion.

    Maria Gonzalez (Interior Designer and Bathroom Renovation Expert, Luxe Home Interiors). Beyond functionality, aesthetics play a vital role when retiling a shower. I advise clients to consider tile size, pattern, and color to create a visually appealing space that complements the overall bathroom design. Incorporating accent tiles or mosaics can add texture and interest, but it is crucial that these elements are installed with precision to maintain waterproof integrity.

    Frequently Asked Questions (FAQs)

    What tools and materials are needed to retile a shower?
    You will need a tile cutter, notched trowel, grout float, level, spacers, waterproof backer board, thin-set mortar, grout, a drill with mixing attachment, and safety gear such as gloves and goggles.

    How do I prepare the shower surface before retiling?
    Remove old tiles and adhesive, inspect and repair the substrate, install a waterproof backer board, and ensure the surface is clean, dry, and level before applying new tiles.

    What type of tile is best for shower walls and floors?
    Porcelain and ceramic tiles are preferred due to their water resistance and durability. For floors, choose slip-resistant tiles to enhance safety.

    How long does it typically take to retile a shower?
    The process usually takes 3 to 5 days, including demolition, surface preparation, tile installation, grout curing, and sealing.

    How can I ensure the shower remains waterproof after retiling?
    Use a waterproof membrane or backer board, apply thin-set mortar properly, seal grout lines with a high-quality sealer, and inspect all joints and corners for proper sealing.

    Can I retile a shower myself, or should I hire a professional?
    While experienced DIYers can retile a shower, hiring a professional ensures proper waterproofing, tile alignment, and long-lasting results, especially for complex or large projects.
    Retiling a shower is a meticulous process that requires careful planning, preparation, and execution to achieve a durable and aesthetically pleasing result. The key steps involve removing the old tiles and adhesive, thoroughly cleaning and repairing the substrate, and ensuring the surface is waterproofed properly before applying new tile. Selecting the right materials, including waterproof backer boards and high-quality tile adhesive and grout, is essential to prevent future water damage and mold growth.

    Precision during tile installation is critical, including accurate measurements, consistent spacing, and proper alignment to create a professional finish. Grouting and sealing the tiles effectively will protect the shower from moisture infiltration and extend the lifespan of the tile work. Additionally, allowing adequate drying and curing time between each stage ensures the integrity and durability of the installation.

    Ultimately, retiling a shower demands attention to detail and adherence to best practices in waterproofing and tile setting. For those less experienced, consulting with or hiring a professional can help avoid costly mistakes and ensure a safe, long-lasting shower surface. By following these guidelines, homeowners can successfully transform their shower space with a fresh, clean, and functional tile finish.

    Author Profile

    Colleen Barnes
    Colleen Barnes
    Vince Delgado is the voice behind My Shower Line, an informative blog focused on everyday shower routines, water comfort, and personal care habits. Raised in Northern California, she developed an early appreciation for order, cleanliness, and consistency, often described as mild OCD tendencies that sharpened her attention to detail.

    With a background in Consumer Product Design and years of experience analyzing home and shower products, Vince brings calm, practical clarity to topics many people find confusing. Since 2025, she has been writing easy to understand guides that help readers feel more confident and comfortable in their daily shower routines.