Home Improvement DIY: Caulking

by admin on September 11, 2015

By: admin

Learn How to Caulk for your Home Improvement Projects

Last week we went over 5 Ways to Prepare your Home for Fall, but we got a few questions specifically about caulking your windows and door frames. We decided to go more in-depth on this project because caulking is a skill every homeowner should have in their proverbial tool belt.

DIY Caulking will involve a number of materials that you’ll want to have ready for your project. These include:

  • Caulk cartridge
  • Caulking gun (medium duty)
  • Caulking tool
  • Utility knife
  • Grease-cutting cleaner
  • Rubbing alcohol
  • Painter’s Tape
  • Sponge

First Things First

For each DIY caulking job, you’ll need to determine what kind of caulk is best for your project. There are three varieties you can choose from.

  • Latex: Best for dry areas of your home interior.
  • Silicone: Best for wet areas of your home interior.
  • Butyl Rubber: Best for home exterior projects.

While caulk can be dispensed in two forms-- squeeze tubes or cartridges, we recommend a caulking cartridge and gun. Like the one below.

caulk gun, caulking

DIY Step 1 -- Remove Old Caulk

  1. For your DIY caulk repair to be effective, you first need to remove the old caulk and prepare the surface.
  2. Remove old caulk from the surfaces (ex: both the tile and bathtub) with a retractable razor blade scraper, carefully.
  3. Clean and vacuum the debris and the open joint until both surfaces are clean and dry.

remove caulk, caulking


DIY Step 2-- Tape off Surfaces

The key to a professional-looking DIY caulk job is to tape off both surfaces. This protects the material surrounding the caulking area. If you don’t do this, you might end up with very wide caulk joints once you try to smooth the joint out.

  1. Use long sections of the painter’s tape, (making sure it is straight) and mask off both surfaces at the point where you want the edge of the caulk to stop.
  2. Taping off a thinner joint, approximately ¼” total width will give you the best look.
  3. Press down firmly on the edge of the tape along the caulk joint.

caulking, tape joints,

DIY Step 3 -- Apply Caulk

You’ve cleaned the joint and masked the space, so now you are ready to CAULK

  1. To open, cut the tip of the caulk tube at a 45 degree angle and puncture the inner seal with a long nail or wire (usually a tip snip or puncture wire is included with the gun.)
  2. Apply the caulk at a 45 degree angle.
  3. Squeeze enough to get the caulk fully into the joint.
  4. Work at a speed that is slow and consistent to give you a smooth joint.

caulk gun, caulking


DIY Step 4 -- Smooth the Joint

After the caulk is applied, you can smooth out the joint. Masking the edges with tape will have proved worth it and your caulk joint will have a clean, sharp edge.

  1. Take a sponge and dampen it with water. Add some rubbing alcohol if you are working with silicone caulk.
    • (The water serves as a lubricant and cutting agent while the joint is smoothed.)
  2. Use firm pressure to smooth the caulk joint, working from one end to the other.
  3. As the sponge becomes caked with excess caulk, wipe off and re-wet.
  4. Continue the smoothing process until the entire section is finished.

caulk, smooth joint, caulking


DIY Step 5-- Remove the Tape

After the joint is smoothed, you can remove the tape by pulling it away slowly and at an angle.

Ta-da! You have finished your caulking project.

Caulking is an essential skill to have for DIY home improvement projects and as shown in our earlier blog post, 5 Ways to Prepare your Home for Fall, it can help prevent leaks and cracks that may damage your home both inside and out. If you want a more in-depth crash course on caulking, you can join us for one of our HandyMom101 sessions, Caulk-It to learn how to caulk in a hands-on setting.


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Tagged as: Home Remodeling