How to make suction cup on outdoor thermometer stick to glass door?

by Malini
The suction cup keeps falling off! :(
  12 answers
  • Elizabeth Elizabeth on May 30, 2017

    Hello, sometimes there are small bumps on the perimeter of the cup you can try to cut them off carefully with a knife or small fingernail clippers. If that doesn't work you can remove the cup and use a command strip those are super universal and they wont harm the glass. Good luck!

    • Malini Malini on May 30, 2017

      Thank you for the quick reply. I will try command strip, is it available at hardware stores?

  • Dar15069594 Dar15069594 on May 30, 2017

    I once spent an entire Christmas season reapplying suction cups that were supposed to hold up garlands on my windows. The following year I switched to Command hooks and haven't ever had a problem.

    • See 1 previous
    • Dar15069594 Dar15069594 on May 30, 2017

      Most hardware stores, Home Depot, Michaels, Staples, Amazon. Very often you can even find them in a large supermarket. They come in a huge variety of styles and sizes. Just makes sure to follow the instructions, wiping the glass with alcohol, not window cleaner. And when you want to remove the item, you just pull the little tab on the hook. Good luck.

  • Sometimes the cups will harden over time and lose their elasticity. You'll have to replace it or use the command hooks as stated above.

    Make sure the cups and surface are perfectly clean before applying. Wipe away grime, then wipe with alcohol to assure a tight fit.

  • Fiddledd224 Fiddledd224 on May 30, 2017

    I know it sounds gross, but sometimes a tiny bit of spit helps it stick.

  • Dur17465890 Dur17465890 on May 30, 2017

    Use a couple of drops of Loctite GO2 clear glue on the cup and let it dry before putting and weight on it. You can't see the glue and it will hold lots of weight.

  • Kat22698679 Kat22698679 on May 30, 2017

    Place the suction cup in boiling water for about 30 seconds. Like brand new!

  • Joanie Joanie on May 30, 2017

    Commando hooks..........5 stars!

  • Malini Malini on May 30, 2017



  • Elizabeth Elizabeth on May 30, 2017

    Yes, you can get them just about anywhere, they look like this, they come in packages of all different sizes and styles. Hope this works for you😄

    • Malini Malini on May 30, 2017

      Thank you so much for the suggestions and the picture!

  • Pat Pat on May 30, 2017

    Yep, a clean window glass and a little spit on the suction cup.

  • Joanie Joanie on May 30, 2017

    Good Luck!

  • Dss14589699 Dss14589699 on May 30, 2017

    Lick it!!!!