Undermount sinks should aways have additional bracing from the cabinet itself.
Undermount bathroom sink detached from granite.
First would be to drill into the granite and set a sort of wedgebolt nut into the stone with epoxy.
The thing with an under mount sink with a granite countertop however is that once the granite is cut the sink stays and if you choose so for a very long time.
Ask your contractor how the sink will be installed.
This video is about how i repair sin.
Can an existing granite countertop sink opening be enlarged in place to put in a slightly larger undermount sink.
But what if you feel the need to replace the undermount sink for one reason or another.
What type of contractor would repair under counter kitchen sinks that have detached from the granite slab underside.
Moldy or cracked caulk.
For the numbers of undermount sinks installed in this country the ones that fall are rare.
Assuming they are installed properly which means attached with more than just silicone or epoxy.
You can t harm the granite.
Just like topmount sinks undermount sinks on granite and quartz need to be sealed to prevent moisture from creating mold and mildew problems in the cabinet.
This undermount china porcelain vanity basin has fallen down from where it was mounted to the vanity granite countertop.
I have seen three different ways of attaching a sink undermounted to the granite.
What type of contractor would repair under counter kitchen sinks that have detached from the granite slab underside i have two kitchen under counter sinks which were glued to the underside of a granite counter top but we re not anchored with screws along the sink lip to double secure the attachment of sinks to granite.
Improper sealants like silicone or painters caulk yes painters caulk and hasty application of the correct sealants are the most common culprits.
I do not know the name of these exactly as the granite guys are the ones who do that.
Scrub with a plastic scrubber re apply 2 3 times until all salts are gone.
Looking for a granite counter top specialist to add a larger sink.
It isn t stained rather the minerals that are in the water have built up.
This vinegar treatment also works to remove deposits from room sized humidifiers with a few applications your granite will look new again.