I'm trying to install a smart thermostat. I have a Honeywell programmable thermostat now. However, I found that there's a wall plate in back of the back plate, and it's secured to the wall (not by screws) and I don't know how to remove it.

enter image description here enter image description here enter image description here

I tried to search on Google and YouTube, but I didn't find anyone who has the same problem. I'm guessing this is a non-typical setup?

Any idea about how to remove this wall plate?


The back plate was meant to be held on by screws into the plastic anchors visible on one of the photos.

If the screws are out and the plate is still attached to the wall, it is likely that paint or compound are holding it on.

Try scoring around the edges with a utility knife, then slipping a putty/taping knife behind the plate and prying it off. There may be some minor cosmetic damage to the drywall or paint.

| improve this answer | |
  • Thanks so much for replying. I noticed that the paint covers the edge of the plate, so it's likely you're right. I'll try again within 2-3 days and update here. – miaout17 Jan 24 '19 at 20:57
  • I think the answer is right. However, we decided to hover Nest back plate over Honeywell back plate, and use screws to tap into the Honeywell plate and the wood. – miaout17 Jan 27 '19 at 3:20
  • 1
    Plates are mostly cosmetic, although they do reduce small drafts that may come through some wall. If the fit is close, sounds like a fine solution. – bib Jan 27 '19 at 17:08

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.