Mastic replacement

[KathyCyr]

When does mastic really need to be replaced? I had a pool guy out to look at another issue and asked about these gaps I have noticed in the mastic between the coping and pool deck. He said it should get replaced or water can get in there and cause damage. Our pool was just completed in May 2021 so it's not that old-we are in TX though where it's been crazy hot and dry. The quote to replace it is $1200 which seems like a lot for our small pool. Do we really need to replace this now or can we wait a while? And does that price sound right? (Attached is a picture of the gaps we are getting in places and of our pool for size reference)

 

[AQUA~HOLICS]

The mastic has a very important purpose, to keep any water from getting to the substrate that supports the decking. If left to deteriorate the chances of the deck work lifting is increased.
Having personally replaced mastic, it’s a time consuming process to remove and prep for the new material, but can be accomplished DYI.