Grout Repair: How To Repair Damaged Grout

Are you grappling with loose tiles in your kitchen or noticing stains and cracks between your bathroom ones? It’s likely time for a grout repair project. 

Regrouting the tiles in your home can prevent tile from falling out and support the overall structure of tiled surfaces. We’ll share several tips for repairing and cleaning tile grout and connect you to grout repair services in your area.

Tools and Materials Needed for Grout Repair

Tile regrouting projects can be straightforward if the wear and tear is fairly minimal, so you’ll only need a few tools for the job. If you’re thinking of purchasing a grout repair kit, make sure it has at least a few of the following items:

• Mixing bucket: Mix water and grout.
• Caulk gun: Add filler between your bathroom tiles and the freshly laid grout.
• Gloves: Protect your hands while mixing and applying grout.
• Grout float: Scoop and evenly apply grout to surfaces. 
• Grout saw: Scrape old grout from your tiles with this small, knife-like tool with a jagged blade. 
• Grout sponge: Wipe away excess grout before applying sealant.
• Paint and mortar mixer: Combine water and grout in a mixing bucket. 
• Putty knife: Spread and scrape grout or caulk with a good putty knife. 

How To Repair Grout in 5 Steps

It’s a good idea to regrout your tiles after six to eight years. We’ll show you how to fix cracked grout in five steps for smaller-scale jobs. For more intricate projects, it’s best to contact professionals who offer home repair services in your area. 

Step 1: Prep your workspace

Move furniture if needed and cover your countertops, floors, and other surfaces with tarps or drop cloths. Open windows to increase ventilation and vacuum any debris. Lastly, equip yourself with gloves and protective eyewear, and gather all the tools you’ll need.

Step 2: Remove the existing grout 

It’s best not to place new grout filler over old grout. Removing old grout before regrouting ensures a clean surface for better adhesion and a smoother, longer-lasting finish. Use a grout saw to remove cracked or discolored fillings. Lastly, use a grout sponge to clean the area and remove any residue.

Step 3: Mix new grout

When mixing grout, aim for a mixture that resembles fresh cement. Add more grout powder if the mix is too watery, or add more water if it’s too dry or powdery, and let it sit for about 10 minutes.

Step 4: Apply new grout and caulk

Once the new grout mix is ready, dip a grout float tool into your bucket until you’ve captured a decent amount of the mixture. Spread it evenly across the grout lines you’re working on, ensuring it's fully packed.

Step 5: Clean up residue and add sealant

Once the grout mixture is set, wipe away any excess residue with a grout sponge. Wait for the mixture to harden (anywhere from 24 to 78 hours) before you can finish your project by adding sealant. 

3 Different Grout Types

Common types of grout used in homes include sanded, unsanded, and acrylic latex grout. Each has its strengths and weaknesses, and knowing their nuances is key to the best tile and grout repair results.

Sanded

Sanded grout is a heavy-duty option that works best for filling tile gaps larger than 1/8 inch. It’s ideal for floor tiles due to its durability, bonding strength, and ability to withstand cracking or chipping.

Unsanded

Unsanded grout is very easy to apply and nicely fills gaps smaller than 1/8 inch wide. It’s best used on vertical surfaces and delicate bathroom tiles, though it’s also more likely to stain than sanded grout.

Acrylic Latex

Acrylic latex is easy to use and dries quickly, though it can be more expensive and less durable than the other two options. It works great on sensitive surfaces like ceramic and in wide gaps.

How Much Does Grout Repair Cost?

Grout restoration (cleaning and sealing existing grout) costs between $1 and $4 per square foot on average, while repair (removing old grout and replacing with new) can cost $3 to $25 per square foot. Various factors like labor costs, grout type, and the extent of the damage will determine the final cost. The service professionals at Mr. HandymanⓇ can help with your tile installation and repair projects and share an upfront quote. 

Choose Mr. Handyman for Grout Repair Services

DIY methods might work for small projects, but it’s best to hire a professional for more complex jobs. Mr. Handyman’s service professionals excel at bathroom tile grout repair and kitchen tile regrouting. 

Contact us to schedule a grout repair service today.

This article is intended for general informational purposes only and may not be applicable to every situation. You are responsible for determining the proper course of action for your home and property. Mr. Handyman is not responsible for any damages that occur as a result of this blog content or your actions. For the most accurate guidance, contact your local Mr. Handyman location for a comprehensive, on-site assessment.

Grout Repair FAQs

Mr. Handyman has been helping homeowners repair, maintain, and enhance their spaces for over 25 years! We are the one-stop solution for everything on your to-do list. This includes answering your questions about home repairs, maintenance, and improvements. Here are answers to some of your most frequently asked questions about grout repair.

Can you put new grout over old grout?

You could put new grout over old one, but it is not recommended. When upgrading your bathroom or kitchen, it’s best to remove all of the original grout before adding new fillings. Installing new grout on top of an older material can lead to uneven grout lines and mold or mildew growth. 

Other reasons to remove old grout first include:

• Better adhesion: New grout sticks to clean surfaces better than worn-out grout.
• Improved appearance: Freshly made grout won’t have cracks or discolorations.
• Mold and mildew protection: Old grout may be holding moisture and could be to harboring mold and mildew new grout would mask.

Can you repair damaged grout?

Yes, you can repair damaged grout depending on how much work needs to be done. Common grout repair methods include:

• Grout colorant: It can be applied directly to discolored grout to help restore an area and protect it from future stains.
• Grout sealer: Use grout sealer to prevent moisture and stains from settling on your surface.
• Grout replacement: This process involves removing old fillings with a grout saw, mixing new grout powder with water, and applying the mixture on a tiled surface with a grout float.

It's important to assess the damage to your grout before choosing a repair method. If you're unsure about how to proceed, consult a professional for guidance.

Can you fill in missing grout?

Yes. You can fill in gaps or missing grout with premixed grout if the surrounding area isn’t severely damaged. A grout float and putty knife are great tools for applying premixed grout, and certain projects don’t need to be sealed.

Is regrouting worth it?

Yes, regrouting is often worth it. Regrouting is important for preventing the growth and spread of mold in your home. It also reduces the likelihood of tiles falling out of place and helps improve the overall appearance of a space.