How to Seal Your Window and Door at Home


Seal Your Window and Door at home

One of the biggest costs in cooling and heating a home is the windows and doors. Most of the air from our climate-control home can escape due to the improperly sealed openings and entrances. If you want your home to be more energy efficient and reduce noise and dust, then sealing you existing windows and doors is the answer.

The process of  is relatively straight forward and you only need to know how to handle the tools in the right way to ensure you create the perfect seal for those cool winter months in the land of the long white cloud.

You will need:

  • Drill
  • Screws
  • Hammer
  • Nails
  • Weather Stripping
  • Foam Backer Rod
  • Door Sweeps
  • Latex Caulking
  • Latex Glazer’s Compound

Steps For Doors and Windows:

  1. First, check if all of the moldings, trim and casings are properly attached inside and out. If there is any loose trim, screw or nail them back into place.
  2. Then, use a foam backer rod to fill any large gaps. Watch out for spaces around the window and door frames that are larger than 6.5mm across. Tuck the appropriate size of the backer rod into the gap. You can find the foam backer rod with the weather stripping in most hardware and home improvement stores.
  3. For proper adjustment and wear, check the door sweeps and weather stripping. Loosen the screws and slide the sweep down to adjust until it drags the floor slightly.
  4. If you can see light through the seam that it should cover, then it’s time to replace your weather stripping. Use a razor scrapper or thin putty knife to scrape the old weather stripping and the old glue as much as possible.
  5. Follow the package instructions for the best installation results as weather stripping may vary. If you are using vinyl and foam weather strip, simply remove the wax paper backing and press the weather strip in place. Use a utility knife to cut off any excess.
  6. Next, install the new door sweeps along the bottom of doors and gaps. Use screws into a chrome or brass colored metal strip. Set the strip along the bottom of the door at the correct height. Make a mark for the screw holes with a pencil and drill with a 1.6 mm bit. Line the sweep up with the holes and drive one of the provided screws into each hole.
  7. For the caulking process, caulk the window and door when everything is in place. You can start at the outside top of the frame and seal it to the siding of the house. Use a color of latex caulk that matches closely to your window frame or you can use clear a latex caulk. With a stiff paint scrapper, scrape off the old caulk and any debris before applying new caulk.
  8. Cut the tip of your caulk tube just about the size of the average gap you will fill. Fill the gap completely and use a dampened finger to smooth the caulk down. Work around the door or window frame toward the center, sealing all visible gaps in non-moving parts and covering any backer rod that was previously installed with the caulking. Apply the caulking inside and out around the windows and doors.
  9. Use the latex glazer’s compound to touch up any loose or cracked putty surrounding the window panes. Cut your tube to 6.5 mm of opening and apply a thin layer of caulk over the damaged putty. Smooth the layer down with your dampened finger tip.
  10. You should try to avoid using expanding foam to seal windows and doors. The reason is that the expansion rate of this type of foam is unpredictable and this can affect their proper function.


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