A swimming pool is a luxury—but only when it’s in good condition. Over time, even the best pools start to show signs of wear, especially in the plaster surface. Cracks, rough spots, discoloration, and stains are all signs that you may need pool plaster repair.
But don’t worry—this guide will walk you through everything you need to know, from identifying damage to fixing it properly and preventing future issues.
Pool plaster is the smooth, waterproof layer applied over the concrete shell of a swimming pool. It serves two key purposes:
Typically made from a mixture of cement, sand, and water, plaster creates that classic clean look most pools have.
Why Pool Plaster Repair is Important
Ignoring damaged plaster can lead to bigger—and more expensive—problems.
Here’s why timely pool plaster repair matters:
Prevents water leakage
Protects pool structure
Improves swimmer safety
Enhances appearance
Extends pool lifespan
Think of plaster as your pool’s protective skin—once it’s damaged, everything underneath is at risk.
Common Signs You Need Pool Plaster Repair
Not sure if your pool needs repair? Look for these warning signs:
Small surface cracks may seem harmless but can grow over time.
If the surface feels abrasive, the plaster is wearing down.
Mineral deposits and chemical imbalances can cause visible stains.
Also known as “spalling,” this indicates serious deterioration.
Water loss can be a sign of deeper plaster issues.
Causes of Pool Plaster Damage
Understanding the cause helps prevent future problems.
Poor water chemistry (imbalanced pH levels)
Aging (plaster typically lasts 7–15 years)
Improper installation
Environmental factors (heat, sun exposure)
Heavy usage
Regular maintenance can significantly slow down wear and tear.
Types of Pool Plaster Repairs
Not all damage requires a full renovation. Here are the main repair options:
Fixing small cracks or chips using patching material.
Removes stains and restores color—but doesn’t fix structural damage.
Applying a new layer of plaster over the entire pool surface.
Upgrading to materials like quartz or pebble finishes for better durability.
DIY vs Professional Pool Plaster Repair
Should you fix it yourself or call an expert?
Best for large cracks or full replastering
Ensures long-lasting results
Includes proper surface preparation
For major issues, hiring professionals is always the safer choice.
Step-by-Step Guide to DIY Pool Plaster Repair
If you’re dealing with minor damage, here’s how to fix it:
Ensure the damaged area is fully exposed.
Step 2: Clean the Surface
Remove debris, dirt, and loose plaster.
Use a chisel or grinder to widen cracks slightly for better adhesion.
Step 4: Apply Patching Material
Use a pool plaster mix to fill the damaged area.
Step 5: Smooth the Surface
Blend the patch with surrounding plaster.
Allow time for the material to set before refilling the pool.
Cost of Pool Plaster Repair
Costs vary depending on the extent of damage:
Small repairs: $150 – $500
Medium repairs: $500 – $2,000
Full replastering: $4,000 – $10,000+
While repairs may seem expensive, delaying them often leads to higher costs.
How Long Does Pool Plaster Last?
On average, pool plaster lasts:
Standard plaster: 7–10 years
Quartz finishes: 10–15 years
Pebble finishes: 15–20 years
Proper maintenance can extend lifespan significantly.
Maintenance Tips to Prevent Future Damage
Prevention is always better than repair.
Maintain proper water chemistry
Brush pool walls regularly
Avoid sharp objects in the pool
Monitor water levels
Schedule regular inspections
These simple steps can save you thousands in repairs.
Best Materials for Pool Plaster Repair
Choosing the right material makes a big difference:
Affordable but less durable.
More durable and stain-resistant.
Premium option with long lifespan and textured look.
Each option offers different benefits depending on your budget and preference.
Avoid these errors when performing pool plaster repair:
Ignoring small cracks
Using low-quality materials
Skipping surface preparation
Improper curing
Not balancing water chemistry after repair
Mistakes can lead to recurring damage and higher costs.
When to Replaster Instead of Repair
Sometimes repairs aren’t enough.
Consider full replastering if:
Replastering gives your pool a fresh start.
Future Trends in Pool Surfaces
Modern pools are evolving with:
Upgrading during repair can enhance both durability and aesthetics.
Pool plaster repair is essential for maintaining the beauty, safety, and longevity of your swimming pool. Whether you’re dealing with minor cracks or considering a full resurfacing, addressing issues early can save you time, money, and stress.
By understanding the causes, choosing the right repair method, and maintaining proper care, you can keep your pool looking and performing like new for years to come.
How do I know if my pool needs replastering?
If the surface is rough, cracked, or over 10 years old, replastering may be necessary.
Can I repair pool plaster myself?
Yes, for minor damage—but major repairs require professional help.
How long does pool plaster repair take?
Small repairs take a few hours, while full replastering may take several days.
What causes pool plaster to crack?
Poor water chemistry, aging, and environmental factors are common causes.
How can I extend the life of my pool plaster?
Maintain proper water balance, clean regularly, and address damage early.
