Re-attach an undermount sink

brussoOctober 17, 2011

Kithcen undermount sink is failing from the granite countertop. Looks like the silicon is giving way. But, there are no other clips or supports of any kind. Should there be? I have seen lengths of wood epoxy glued tohelp support the silicon on other jobs. What is the proper fix to this?

Thank you for reporting this comment. Undo

The only fix ay be to put cross bracing in the cabinet to support the sink from the bottom.

2 cm granite normally uses the plywood under-layment to support the sink lip.

3 cm granite can have bolts placed in slots in the underside of the granite to hold the sink clips.

    Bookmark   October 17, 2011 at 7:41PM
Thank you for reporting this comment. Undo

Hi I have had to do this same job twice so I have a system down pat. If you haven't started yet post again and I'll jump on and let you know how to fix your problem once and for ever.

    Bookmark   October 29, 2011 at 1:37PM
Thank you for reporting this comment. Undo

I used the brickeye method (this guy is always right) and epoxyed a piece of pylwood across the undermount lip and screwed it into the front and back of the cabinet as well as used silicone around the sink itself.I clamped everything together for 24 hours. The biggest chore was cleaning off the old silicone from the granite. Scraping and Acetone worked best, then cleaned with alcohol. Whole job took 2 hours. It's been 2 weeks now and all is fine. But p10rs if you have another way or better way, I am all ears.

    Bookmark   October 29, 2011 at 4:47PM
Sign Up to comment
More Discussions
adjusting stop on lazy susan
Hi all, I have recently moved into an older home with...
Fixing Spanish Plaster and plaster interior walls (1933 house)
We live in a 1933 Lannon stone home (Lannon stone is...
Old kitchen drywall
Finally are giving our kitchen a facelift. We have...
Hubby and I disagree on who to call for cracks
So we keep arguing for like 5 years now (husband and...
Roof leaking due to antique bricks? (X-post with Bldg a Home)
Good morning! We are having a problem with our new...
© 2015 Houzz Inc. Houzz® The new way to design your home™