Fiberglass vs. Plaster Pools

Choosing between a fiberglass and plaster pool is one of the most important decisions you'll make when installing a new swimming pool. While plaster has been used for decades, modern fiberglass pools offer several important advantages:

  • Lower maintenance
  • Greater durability
  • Reduced chemical usage
  • Lower lifetime ownership costs
Here's how the two compare.

Custom fiberglass swimming pool installed in Southern New Mexico

Fiberglass Pools Save Money and Time

Smooth, Comfortable Surface

Unlike plaster, fiberglass maintains a smooth, non-porous surface throughout its life. That means no scraped feet, less staining, and no rough mineral buildup caused by leaching materials.

Structural Strength

Fiberglass adds structural strength to the pool shell, helping resist cracking and separating. Its corrosion-resistant properties contribute to decades of dependable performance.

Lower Maintenance

Because fiberglass is non-porous, algae has fewer places to attach. The result is a cleaner-looking pool that requires less brushing and less time maintaining its appearance.

Lower Chemical Demand

Fiberglass doesn't react with pool chemicals the way plaster does. Water chemistry is easier to maintain, chemicals work more efficiently, and ongoing maintenance costs are often lower.

Long-Term Durability

Fiberglass pools are built for decades of use. Unlike plaster, which may eventually require resurfacing, fiberglass maintains its finish and structural integrity with proper care.

Easier Ownership

Fiberglass pools are easier to own from day one. Startup is simpler, ongoing maintenance is reduced, and homeowners spend less time caring for their pool and more time enjoying it.


Fiberglass vs. Plaster at a Glance

Feature Fiberglass Plaster
Surface Smooth Roughens over time
Chemicals Lower demand Higher demand
Algae Resistant More prone
Maintenance Low High
Resurfacing Rarely Needed Periodically Required
Lifespan Excellent Shorter

While both pool types can provide years of enjoyment, fiberglass consistently delivers lower maintenance, fewer chemicals, and lower long-term ownership costs for many homeowners.


Why Fiberglass Pools Are Ideal for Southern New Mexico

Southern New Mexico presents unique challenges for swimming pool owners. Intense sunshine, hot summer temperatures, hard water, and long swimming seasons all place extra demands on a pool's surface. Fiberglass pools are especially well suited for these conditions because they require less maintenance while maintaining their appearance year after year.

Built for the Desert Climate

The smooth, non-porous fiberglass surface resists algae growth, even during the hottest months of the year. Because algae has fewer places to attach, homeowners typically spend less time cleaning and use fewer chemicals to keep the water clear.

Better Performance with Hard Water

Much of Southern New Mexico has naturally hard water, which can contribute to scaling and surface buildup over time. Fiberglass surfaces are less porous than plaster, making them easier to clean and helping them maintain their smooth finish.

Lower Water and Chemical Use

Hot, dry summers mean more evaporation and more frequent water replacement. Because fiberglass pools generally require fewer chemicals and less intensive maintenance, they can help reduce ongoing operating costs while keeping pool care simple.

More Time Enjoying Your Pool

Most homeowners would rather spend weekends relaxing with family than brushing pool walls or dealing with algae problems. A fiberglass pool's smooth surface and low-maintenance design means less work and more time enjoying your backyard.