Everything You Need To Know About Your Home's Cracked Swimming Pool

Posted on: 25 May 2015

If you recently purchased a home with a cracked in-ground swimming pool, you've come to the right place. Cracking is a common problem for older pools and those built in areas of the country where the soil is prone to shifting. The good news is that your swimming pool can be repaired and continue to provide fun for your family for many more years to come.

Here's some helpful information on pool crack formation, their repair, and how to prevent future cracks from forming in your home's pool:

Swimming Pool Crack Formation

Swimming pools are made of plaster. Plaster is similar to concrete, in that it has some ability to expand and contract during changes in temperature or soil movement. However, in areas with drastic shifts in temperatures or areas with very sandy soils, the swimming pool plaster is likely to form cracks. The plaster will crack when it can no longer hold the expansion necessary to make up for excessive heat, cold, or ground movement.

Swimming Pool Crack Repair

The necessary repair for a pool's crack depends upon the type of cracking. Small hairline cracking inside the interior of any pool is expected over time, and can easily be fixed by applying a sealant made for this problem. This repair requires draining your pool, but is a simple DIY project.

Larger cracks in the pool's plaster can signal very serious problems with the structural integrity of your pool. Larger cracks cannot be repaired by anyone other than a licensed pool contractor. The contractor will carefully measure the cracks and determine if the cracks can simply be filled with a sealant, or if your pool's structure is damaged and in need of additional repairs.

Swimming Pool Crack Prevention

There are specialized pool sealants that can be professionally applied to the inside of your home's swimming pool to help prevent the formation of hairline cracking. However, the underlying problem is typically either ground movement or temperature changes, so there isn't anything a contractor can do to change those factors. By keeping small cracks from forming, you can prevent their growth and further damage. Sealing your pool is advised if you live in an area where cracking is prevalent.


While swimming pool cracks are frustrating for you, they are just part of life with owning a home with a pool. However, by repairing cracks as early as possible, you can greatly extend the life of your swimming pool and mitigate further damage to the pool's structure. To have your new home's cracked pool fixed, you should contact a licensed swimming pool contractor in your local area for assistance.

To learn more about pool repair, contact a company like Bellar Pools Inc.