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How to Fill Drill Holes in Concrete with Power Drills: A Step-by-Step Guide

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Written By John Gibbs




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Do you have some old drill holes in your concrete that need to be filled? This guide will show you how to fill drill holes in concrete in a few simple steps. You’ll need some materials like concrete mix, a trowel, a putty knife, and some water. With these tools and a little bit of time, you’ll be able to repair the holes in no time!



Safety Considerations

Wear safety glasses and work gloves when filling drill holes in concrete to protect your eyes and hands.

Tools and Materials Needed

Masonry drill bits, concrete patch, concrete sealer, trowel, putty knife, wire brush, vacuum and water.

Step-by-Step Guide

Step-By-Step Guide

Clean the Hole

To begin, use a wire brush to clean the hole thoroughly, removing any dust, debris, and dirt.

Insert Plug

Next, insert a plug into the hole.

Apply Adhesive

Using a caulking gun, apply adhesive to the plug.

Push Plug into the Hole

Carefully push the plug into the hole, making sure it is level and straight.

Allow Adhesive to Set

Allow the adhesive to set according to the manufacturer’s instructions.

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What to Do if the Plug Does Not Fit

If the plug does not fit into the hole, it is likely that the hole is too large. To fix this, you can fill the hole with a mixture of epoxy and sand. First, mix the epoxy and sand together until it is a thick paste. Then, fill the hole with the mixture, making sure to pack it tightly into the hole. Allow it to dry completely before proceeding.

What to Do if the Plug Does Not Stay in Place

If the plug does not stay in place, it is likely that the hole is too wide or too uneven. To fix this, use a concrete patching compound to fill the hole and create a smooth surface. After the patching compound has dried, test the surface for any unevenness, and then use a drill bit to create a slightly smaller hole. Insert the plug into the hole and use a masonry bit to secure it in place.

Frequently Asked Questions

What Type of Drill Should Be Used for Drilling Holes into Concrete?

When drilling into concrete, it’s important to use the right type of drill. A hammer drill, also known as a rotary hammer, is the best choice, as it combines a hammering action with a rotary motion, allowing it to drill through the concrete quickly and easily. Hammer drills also have a clutch, allowing you to change the speed and power of the drill, depending on the job. Be sure to use a carbide-tipped masonry bit for the job.

What Kind of Drill Bit Should Be Used for Drilling Holes into Concrete?

When drilling into concrete, it is important to use a drill bit specifically designed for masonry. Masonry drill bits are made from high-grade steel and feature a specially designed fluted tip for improved drilling speed and performance. They are also designed to withstand the heat generated by the friction of drilling, ensuring a long-lasting bit.

Is it necessary to use a hammer drill for drilling holes into concrete?

Yes, it is necessary to use a hammer drill to drill holes into concrete. Hammer drills are specifically designed to make holes in concrete, masonry, and other hard materials. Here are some points why it is necessary to use a hammer drill:

  • Hammer drills can generate enough power to penetrate the hard surface of concrete.
  • Hammer drills are equipped with a special hammering mechanism that helps to break up the concrete as the drill bit penetrates it.
  • Hammer drills are designed to be used with specially designed masonry bits.
  • Hammer drills can also be used for drilling into brick, stone, and other hard surfaces.

Using a hammer drill to make holes in concrete is the best way to ensure that the holes are drilled accurately and safely. If you are using a regular drill to make holes in concrete, you may run the risk of damaging the drill bit or the surface of the concrete.

What Materials Are Needed for Filling Drill Holes in Concrete?

To fill drill holes in concrete, you will need: concrete patching compound, a putty knife or trowel, a damp cloth or sponge, and sandpaper. You may also need a drill, masonry bit, and screw anchors depending on the type of hole you are filling.

Are There Any Safety Precautions to be Taken When Drilling Holes Into Concrete?

When drilling into concrete, it is important to take proper safety precautions. Wear protective eye wear and a dust mask to avoid inhalation of concrete dust. Make sure to use a drill with a clutch and a hammer action setting to avoid over-drilling. Additionally, use the correct type and size of drill bit for the job, as incorrect equipment can cause damage to the concrete surface. Finally, ensure that the area is well-ventilated and free from moisture before drilling.


Filling drill holes in concrete is a relatively easy task, as long as you have the right tools and materials. With a little patience and the step-by-step guide provided, you can fill those holes with confidence.

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About John Gibbs

Hello everyone! My name is John Gibbs. I am 60 years old and have been in the family construction business all my adult life. Construction is not only my profession but also my passion. I know everything about building and repair materials, tools, advanced methods, techniques, and approaches. I will share the same knowledge with you in my articles.

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