Compare Inground Swimming Pools

Fiberglass, Vinyl liner, or Concrete

This information is to help you understand and compare the three types of inground swimming pools. The approach is simple. List the advantages and disadvantages of inground fiberglass pools, vinyl liner pools, and concrete pools……then you can form your own opinion.
Here you go:

Fiberglass Pools: Advantages & Disadvantages


  • Lower maintenance cost: The gel coat surface of the fiberglass pool shell is nonporous and very smooth.  This inhibits the growth of algae and reduces the amount of sanitizing chemicals required to maintain the pool.
  • Little or No lifetime cost: 99% of the time there is never any money invested in the shell of fiberglass pools.  No vinyl liner to replace and no resurfacing if maintained correctly.
  • Non-abrasive surface: The gel coat surface of fiberglass pools is smooth to the touch.
  • Built-in Seats, Steps, & Lounges: Most fiberglass pool designs have seating and lounging space. All fiberglass pools have steps incorporated into the shell.
  • Manufactured in controlled environment: Fiberglass pools are built in the controlled climate of a factory using the industries latest technology.
  • Quick installation: Because the shells of fiberglass pools are built off site, the installation occurs more rapidly….3-5 weeks on average.


  • Limited shapes and designs:  Because fiberglass inground swimming pools are built from a mold, the consumer is limited to the shapes and sizes offered by the various fiberglass pool manufacturers.
  • Shipping restrictions, no wider than 16′:  Fiberglass Pools are shipped by road.  DOT shipping restrictions limit the width of the fiberglass pool to 16′.
  • Repairs on some colored finishes do not match:  Many fiberglass pool manufacturers use colored finishes that do not match in the unlikely event that a repair is needed.
  • Higher initial cost:  Fiberglass pools are more of an initial investment; usually at least $5k more than vinyl liner pools and about the same as concrete pools.
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Vinyl Liner Pools: Advantages & Disadvantages


  • Low initial cost:  Vinyl Liner Inground Swimming Pools have the lowest initial cost of any of the three types of inground pools.
  • Customizable shape and size:  There are no limitations of the length, width, and depth of Vinyl Liner Pools.
  • Vinyl liner pools are nonabrasive:  The vinyl liner material is smooth to the touch.
  • Doesn’t foster algae: The vinyl material used in vinyl liner pools is also relatively non-porous so it inhibits algae growth.


  • Higher lifetime cost:  Most Vinyl liners will last between 7 and 15 years at a replacement expense of $3,500-$5,500 plus the cost of water.
  • Liner warranties pro-rated:  Many vinyl liner manufacturers have a 20-year pro-rated warranty…. always read the fine print.
  • Must use pool with care:  Dogs, kids throwing stuff in the pool, tree limbs, etc. are all concerns.  The liner is only 20-30 mil thick, which is the thickness of several sheets of paper.  One mistake could cost you big bucks.
  • Lower resale value:  When you go to sell a home with a vinyl liner pool, one of the first questions asked is “how old is the liner?”  If it’s more than 3-4 years old, there’s a significant chance a request will be made to replace the liner before the sale of the house, or the value of the pool will be depreciated.

Concrete Pools: Advantages & Disadvantages


  • Virtually any size or shape you can dream of:  Concrete pools can be any size, shape, or depth.
  • Most flexible with design features:  Vanishing edges, beach entries, tanning ledges, etc. are all just a sketch away from reality with concrete pools.
  • Works of art:  Concrete Inground Swimming Pools can be integrated into design as a literal work of art in the landscape.


  • High lifetime cost:  Concrete pools will need to be renovated every 10-20 years.  This involves resurfacing and re-tiling the pool at an expense of $8k-$15k or much higher depending on the pool.
  • More chemical use:  Because the surface of concrete pools is very porous, more chemicals and filtration are required to prevent algae.  The alkaline pH of the pool shell also constantly raises the pH of the water, requiring the frequent adding of acid to counteract the effect.
  • More maintenance:  Concrete pools also need to be frequently broomed or swept with a pool brush to remove algae from the pours of the plaster or aggregate surface.
  • Longer install time:  Concrete pools take longer to install…. usually 2-4 months.

Still have questions? If so, contact us today!

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