Learn to make DIY mosaic house numbers with this easy tutorial and video! We'll show the easy way to mosaic without grout!

Hi Kenarry Readers! We're Jennifer and Kitty from RunningWithSisters.com, and we have a mosaic project that is so pretty and so easy — Mosaic House Numbers! We discovered a fast way to make beautiful mosaics, and we can't wait to share it with you. Even if you've never done a mosaic before, you can do this! The trick is no grout!

How to make mosaic house numbers

We will show you everything you need to get to make your own gorgeous mosaic house numbers. We'll show you how to adhere your mosaic (again––no grout!) and how to arrange your tiles and things for best results. We've even included a video. Follow along as with the video, then use the instructions below to make your own!


Disclosure: This blog post contains affiliate links for products or services we think you'll like. This means if you make a purchase from one of these links, Ideas for the Home by Kenarry® will make a small commission at no additional cost to you so we can keep the great ideas for the home coming your way. All opinions expressed are derived from personal experience.

Materials To Make One Of The Mosaic House Numbers

  • Wooden or MDF house numbers, about 9.5″ tall
  • Black primer spray paint
  • Picture hangers
  • Mini tiles, assorted sizes
  • Keys
  • Heart charms
  • Lock charms
  • Brass shank buttons (shanks removed)
  • Cube beads, 4mm
  • 100% Silicone, black
  • Putty knife

Steps To Make One Of The Mosaic House Numbers

1. Spray paint the number black. Be sure to do both the front and the back, plus the sides.

2. Cover the front of the number with a 1/8-inch layer of black silicone. Squeeze the silicone out onto the number.

Learn to make DIY mosaic house numbers with this easy tutorial and video! We'll show the easy way to mosaic without grout!

Use the putty knife to spread the silicone over the surface. It's like frosting a cake!

Learn to make DIY mosaic house numbers with this easy tutorial and video! We'll show the easy way to mosaic without grout!

3. To make the mosaic, press the keys into the silicone first. Next arrange the charms and buttons. Make sure each item is pressed down into the silicone.

Learn to make DIY mosaic house numbers with this easy tutorial and video! We'll show the easy way to mosaic without grout!

4. Make a border with mini tiles using all tiles of the same color. If the keys or other items interfere with the border, just leave off the tile there. You can use a smaller tile or cube bead in the next step. The border doesn't have to be 100% complete.

Learn to make DIY mosaic house numbers with this easy tutorial and video! We'll show the easy way to mosaic without grout!

5. Fill in the spaces between the keys and tile border with the different mini tiles. Continue filling in spaces with smaller tiles. Then finally fill in the smallest spaces with the cube beads until almost all of the black silicone is covered.

Learn to make DIY mosaic house numbers with this easy tutorial and video! We'll show the easy way to mosaic without grout!

Let the mosaic house numbers set up over night. You can use the silicone to adhere picture hangers to the backs of your numbers, too. We made three mosaic house numbers and chose to do each one in a different color, but we chose colors that go together. If you prefer you could do all your numbers in the same color story. Whatever you'd like!

If you have any questions while you're working on your mosaic house numbers, just leave us a comment and we'll reply. We want to help!
Happy Crafting,
Jennifer & Kitty

Here are a few more mosaic projects from The O'Neil Sisters:

Mosaic stepping stones are a perfect summer craft. Gather flea market finds like keys and coins, then embed them in concrete. Great craft with kids!

Steampunk Stepping Stones

Make a Steampunk Birdhouse with old skeleton keys, clock parts, chains, and gears. We'll show you how to emboss the metal wings.

Steampunk Birdhouse

Mosaic Cocktail Coasters from The O'Neil Sisters - RunningWithSisters.com

Mosaic Cocktail Coasters

DIY Mosaic house numbers questions

What kind of spray paint should I use?

Gloss or matte doesn't matter since you will be covering it up with the mosaic materials. You want to pick out a multi-purpose spray paint like Rust-Oleum or Krylon.

What can you use instead of silicone?

If you don't have silicone, you can also use an industrial-strength adhesive. Weldbond is known for being long-lasting and strong.

What other materials can you use to make an outdoor mosaic?

You can use scrap glass, pieces from a mirror, broken plates, seashells, and even beads. Have fun and be creative.

Love the ideas you see here on Ideas for the Home by Kenarry®? Subscribe today to get our weeklyIdeas in Your Inboxnewsletter plus other exclusive gifts and offers — all for FREE!

What's Next?

While you're here, be sure to check out these other craft projects on Ideas for the Home by Kenarry® –

  • DIY Repurposed Wind Chime With Old Keys
  • Mosaic Garden Rocks: How To Make Garden Mosaics
  • Chic and Fun DIY House Number Wall Planter

Jennifer and Kitty O'Neil are sisters and authors of several books including Steampunk Chic: Vintage Flair From Recycled Finds. Their crafting, decorating, and jewelry designs have appeared in Woman's World, Craft Ideas, and Create and Decorate magazines and on the web sites of Better Homes and Gardens, Family Circle, and HGTV. Their detailed craft videos can be found on Curious.com and on their YouTube channel, which has over 2.2 million views. The O'Neil Sisters share their enthusiasm and their fresh approach to crafting and decorating on their blog, RunningWithSisters.com.

The O'Neil Sisters shared their great ideas on Ideas for the Home by Kenarry® from June 2015 - May 2019. Follow the O'Neil Sisters on Facebook, Pinterest, and Instagram.