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How much should I expect to pay to have an undermount sink reinstalled?

Posted on 11/9/25 at 4:11 pm
Posted by PenguinNinja
Antarctica (and Japan)
Member since Sep 2011
2309 posts
Posted on 11/9/25 at 4:11 pm
The porcelain sink detached from the granite countertop it's attached to. I guess the epoxy that held it there failed...whoever put it in originally didn't install any secondary brackets.

I need the sink removed, cleaned up, and reattached properly. Disconnect & reconnect plumbing, etc.

I got a quote and they want $950, which seems really high. This is in a major city in case that's relevant...
Posted by The Baker
This is fine.
Member since Dec 2011
18579 posts
Posted on 11/9/25 at 4:11 pm to
quote:


The porcelain sink detached from the granite countertop it's attached to. I guess the epoxy that held it there failed...whoever put it in originally didn't install any secondary brackets.

I need the sink removed, cleaned up, and reattached properly. Disconnect & reconnect plumbing, etc.

I got a quote and they want $950, which seems really high. This is in a major city in case that's relevant...


Everything is $1000 dollars
Posted by UptownJoeBrown
Baton Rouge
Member since Jul 2024
5831 posts
Posted on 11/9/25 at 4:13 pm to
OMFG! Do it yourself. It’s not hard. Watch YouTube.
Posted by Major Dutch Schaefer
Location: Classified
Member since Nov 2011
37908 posts
Posted on 11/9/25 at 4:48 pm to
I had this happen a couple of years back. This is an easy DIY. I also recommend getting the below brackets to prevent the issue in the future.








Link to brackets: LINK
Posted by Clames
Member since Oct 2010
18731 posts
Posted on 11/9/25 at 6:31 pm to
quote:

I also recommend getting the below brackets to prevent the issue in the future.



Those are ok as long as the cabinet isn't built with veneered particle board, but still need a strong adhesive/sealant to mount the sink.


OP, it's an expensive fix because for someone to do it right it is a somewhat tedious and technically challenging process. Also, you need the right SMP adhesive and the best is 760UV by 3M. I build a clamp system using lengths of 2x4, all-thread rods, washers, and nuts. Basically a two-day process to give the adhesive time to cure before running caulk, reattaching disposal, faucets and plumbing. Then if possible I'll add something to reinforce the sink like those supports or build something myself.


Posted by Major Dutch Schaefer
Location: Classified
Member since Nov 2011
37908 posts
Posted on 11/9/25 at 8:55 pm to
quote:

Those are ok as long as the cabinet isn't built with veneered particle board, but still need a strong adhesive/sealant to mount the sink.



Correct, still used adhesive on sink. Cabinets are real wood in my house.
Posted by SmoothBox
Member since May 2023
2250 posts
Posted on 11/9/25 at 9:06 pm to
Is the 950 labor only?

Reconnect/disconnect a garbage disposal? How big is the sink?
Posted by PenguinNinja
Antarctica (and Japan)
Member since Sep 2011
2309 posts
Posted on 11/9/25 at 9:37 pm to
The $950 is labor and materials.

It’s a bathroom sink - I’d say normal sized…not huge. Only thing about the plumbing is theres an A/C drain line going into the sink drain.
Posted by LSUDad
Still on the move
Member since May 2004
61716 posts
Posted on 11/10/25 at 12:50 am to
You in BTR?
Posted by PenguinNinja
Antarctica (and Japan)
Member since Sep 2011
2309 posts
Posted on 11/10/25 at 8:26 am to
No. Houston.
Posted by SmoothBox
Member since May 2023
2250 posts
Posted on 11/10/25 at 9:01 am to
That’s not that bad of a price really.
Posted by LSUDad
Still on the move
Member since May 2004
61716 posts
Posted on 11/10/25 at 9:08 am to
quote:

No. Houston


Call Adrian, he did work for me at my daughter’s house. Tell him Dad recommended him. He can reattach the sink. He did the work in the Cypress area. Best of luck. He should be way under the $500 mark. Let me know how it works out.

(832) 837-7434
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