• Hometalker
  • Ottawa, KS
Asked on Oct 18, 2017

How to raise sagging counter tops.



We bought a park model in Arizona and both the kitchen and bathroom countertops are sagging in the center. Not a lot, but enough to create a space between th top of the counter and the backslash.
q how to raise sagging counter tops
7 answers
  • Kat
    on Oct 18, 2017

  • Dee Gonyea
    on Oct 18, 2017

    If you're looking to cover, not repair, a small strip of quarter round moulding should cover it!
  • Ken
    on Oct 18, 2017

    This does not look as if there is any caulk in there to keep water from getting in and destroying the particle board substrate of the laminate countertop. Particle board has no defense from water.

    Replacement is the best choice but if you can get under the cabinet and behind the sink to jack the countertop up a bit and put a 1"x2" or 3" across to hold the countertop up, screw it to the wall studs. That should fix the problem for now. Put some silicone kitchen and bath caulk along the length of the backsplash where it meets the counter to keep water from flowing back in there.

    My last house was a 1995 manufactured home and I was constantly surprised by the little shortcuts they took. There should have been support across the back of the sink and while building it would have taken so little to do it right.
  • Fauxgal
    on Oct 18, 2017

    I would just caulk it with a beige that is similar to your surface.
  • Sharon
    on Oct 18, 2017

    I would empty cabinet below, and shine a flashlight up to find the metal clips that hold it up, and see if they are loose. You can try just screwing them back in but if the hole is getting strips, you may have to replace the screws with the next fattest size up (not longer) to bite into the substrate. Then maybe run a bead of clear silicon caulk in there to prevent water infiltration.
  • William
    on Oct 18, 2017

    The weight of the sink and lack of bracing underneath has caused them to sag. Don't caulk, quarter round the gap. They will sag more. There are no "clips" that hold the countertop up. Get under the cabinet where the sag is. Measure the height against the wall from the floor of the cabinet to the underside of the countertop. Cut some 1x2 boards about 1/8" to 1/4" longer than your measurement. Place the boards under the countertop and the cabinet floor against the wall and gently pound them to raise the countertop. If the boards are a little to tight just trim a little off one end. Once the gap is closed then you can caulk the corner seam.
  • Susan
    on Oct 19, 2017

    Thank you all. Good info.
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