What Happens to a Fiberglass Pool After 25 Years?
At 25 years, the parts of a fiberglass pool age at different rates. The shell, the surface finish and the equipment each have their own timeline.
Short answer: Latham states that a well-maintained fiberglass pool can last 50 to 60+ years, and elsewhere gives 25 to 30 years as an average. At 25 years, the finish, equipment and surrounding parts tend to show wear before the shell does. Condition, not age alone, decides whether to repair, resurface or replace.
How long does a fiberglass pool last?
No one can read a pool’s remaining life from its age. What exists is manufacturer statements, which are not guarantees. Latham, the manufacturer of the pools we offer, says three different things in three places:
- Its fiberglass pools page says that with proper care and maintenance, an inground fiberglass pool can last up to 50 to 60+ years.
- One of its articles gives the average lifespan as 25 to 30 years, depending on usage and maintenance, and says some pools can last more than 50 years if well cared for.
- Another article says fiberglass pools can last the lifetime of the home they are installed in, and notes that some installed in the 1960s are still in the ground.
Treat these as a range. Maintenance, water chemistry and installation quality move a pool along that range.
What does Latham’s warranty cover after 25 years?
Read the terms carefully. Latham’s current published fiberglass warranty is titled “Limited Lifetime Warranty,” and its coverage is narrower than the name suggests.
- Structure: it covers leaking caused by structural failure that comes from faulty workmanship or materials in making the shell, for as long as the original retail purchaser owns the pool.
- Surface: the gelcoat finish is covered against osmotic blistering from defects in materials or workmanship, for the same period.
- Not covered: fading, staining, discoloration, cracking (including hairline cracks) and changes in the look or texture of the surface finish, other than osmotic blisters. Damage resulting from the installation of fittings, skimmers, piping, lighting, rails, ladders or other accessories, or from decks and similar structures, is also excluded.
- Conditions: it applies to residential use and to the original purchaser, and it depends on how the pool was installed, kept full of water and maintained, including water test records.
Latham has issued these terms in different versions and under different titles over the years. Which version applies to your pool depends on its paperwork, so check your own documents or ask Latham.
What ages first in a 25-year-old fiberglass pool?
This part is general experience, not a manufacturer statement. Parts that are replaced, exposed or attached to the shell usually show age before the shell does.
| Part | What you may notice |
|---|---|
| Surface finish (gelcoat) | Fading, a chalky or rough feel, staining at the waterline, fine cracks, or blisters |
| Pump, filter, heater, controls | Noise, leaks, slower performance, parts that are no longer made |
| Skimmers, returns, lights, piping | Leaks at fittings, worn seals, corroded or brittle parts |
| Coping and decking | Cracks, gaps, shifting, water draining toward the pool |
| Cover, ladder, rails | Worn fabric, loose or corroded hardware |
| Shell structure | Visible cracks, movement, or water loss you cannot explain |
The surface
Latham’s warranty excludes fading, staining and texture changes from coverage. Blisters are different: the warranty covers osmotic blistering that comes from a defect, so note where they appear and have a professional look at them.
The edge and the deck
Latham’s warranty says it recommends and assumes that the beam, which includes the coping around the shell, will be covered by a cantilever deck, stone, brick pavers or other suitable coping material. Movement or cracking there is worth watching.
The cover
Covers and their hardware wear out with sun, weather and use. If yours is showing its age, see our winter safety covers.
What should a 25-year-old pool owner check?
- Look over the shell for cracks. Latham says a visual check for cracks is one of the most important regular checks on a fiberglass pool, and to note any stains or discoloration, especially along the waterline.
- Run a hand over the surface for rough, chalky or blistered areas.
- Watch the water level. Latham says its pools are designed to remain full of water at all times, so unexplained water loss deserves a professional’s attention.
- Keep runoff and ground water away from the pool. Latham’s warranty lists ground water around the pool and poor drainage among the conditions it does not cover.
- Check fittings, equipment, coping and deck for leaks, movement and wear.
- Keep your records: the pool’s serial number (Latham says it is on the second step), the installation date, the builder’s name and your water test results.
Do not drain the pool to inspect it. Latham’s warranty excludes damage from improper or unauthorized draining. If draining is ever needed, follow Latham’s written instructions and use a qualified professional. Our guide to draining a fiberglass pool safely explains what to know.
When do owners resurface, and when do they replace?
In general, resurfacing answers a surface problem. Owners usually start considering it when fading, roughness, staining or widespread fine cracking spreads across the pool, or when blisters appear. Our guide to re-gelcoating a fiberglass pool covers that process.
Replacement comes up when the problem is the shell itself. Typical triggers are leaks traced to the structure, movement, repairs that keep recurring in the same area, or a shape and depth that no longer suit the household. It also comes up when the shell, deck and plumbing all need work at once.
A professional inspection should make the call. If replacement is the question, you can read how it works on our pool removal and replacement page.
Last reviewed October 2026 by Calm Water Pools.
Related guides
- How often do you have to re-gelcoat a fiberglass pool?
- Fiberglass pool durability and repair
- Fiberglass pool care and maintenance
Planning a fiberglass pool in Maryland, D.C., Northern Virginia or West Virginia? Request a consultation or call 240-372-4440.