Pool mastic (or pool caulking) and concrete expansion joint mastic installation is what we do. It's ALL we do. While the majority of other companies offer pool mastic or concrete expansion joint installation, it's among a number of other services they offer and usually one of the lowest of their priorities. Even in-ground pool installers have moved away from including sealing the expansion joint as part of the package of your newly installed swimming pool, leaving this responsibility to the homeowner/client or sub-contracting the work out to a 3rd party. While I'm sure most of these companies do fairly decent work, MASTIC IS ALL WE DO AND WE DO IT WELL!
Your expansion joint around your in-ground swimming pool plays one of the most vital roles in the integrity and longevity of your pool. This joint, when neglected, could cause major, costly repairs or even lead to necessary renovation. This damage is avoidable with a properly sealed expansion joint.
If you notice the mastic around your pool cracking or pulling away from the deck, it's time to have it replaced.