Vinyl vs Fiberglass Windows – Pros, Cons, Comparisons and Costs


Vinyl vs. Fiberglass Windows: The Comparison

Windows are one of the most important parts of any home that we have. These windows are the ways by which you can actually see what is going on outside your home and they also provide a means for light to enter the house as well. So, there is no doubt that choosing the perfect type of windows is really important. You need to weight your choices in order to come to a decision. Both fiberglass and vinyl windows are very popular choices amongst the builders and homeowners. Here we are going to build a comparison between these two materials.


When it comes to window frames, vinyl and fiberglass might seem a bit similar. However, the vinyl windows come along with a proper join line which is situated in the corners. But then fiberglass has more of a wooden window look and appeal. The vinyl windows are mostly plain looking.

When it comes to fiberglass, the color and style options are plenty as well.


The material vinyl is a pretty flexible one which can easily contract and expand as well. So, due to the flexibility, they are much easier to install and can be done quickly. Fiberglass tends to be a bit rigid and hence the installation is a bit difficult and it takes more time as well. You can choose Legacy Windows Service in New Jersey for the installation of windows in your home.


When it comes to the cost comparison, vinyl tends to be a little cheaper than the fiberglass material. So, most builders and homeowners who are in a tight budget can choose the vinyl windows for installation purposes.

Durability And Strength

Fiberglass is about 8 times stronger than the material vinyl. So, there is no doubt that it will be able to last a bit longer than vinyl. While vinyl windows can last until 30 years, fiberglass windows go up to 50 years and even more if necessary. The makeup of fiberglass windows is the reason for the strength. The fiberglass windows have glass fibers and that is what provides the strength to the material.

Energy efficiency

We have already established the fact that fiberglass has glass fibers in it which means that the material will not be able to expand or contract. So, it doesn’t conduct cold and heat. So, it is a better form of insulation than vinyl.

Vinyl Windows Pros and Cons


  • Cheaper material
  • No need to paint
  • Doesn’t fade in sunlight
  • Installation is easier
  • Easily available
  • Increase the value of the home


  • It will warp in the hot temperature
  • Temperature fluctuations may cause expansion and contraction
  • Poor air sealing
  • Less insulation

Fiberglass Windows Pros And Cons


  • The frames are thinner and have more glass fibers
  • The insulation is a lot better for noise and energy control
  • Doesn’t warp, expand, or contract
  • Appearance is a lot better
  • Increases the value of the home


  • It is an expensive material
  • The installation process is difficult and takes more time
  • Needs frequent painting
  • Can fade in the sunlight

So, that is all that you need to know about fiberglass and vinyl windows. Make your choice wisely!


Latest Issue

BDC 315 : Apr 2024