Vinyl Vs Fiberglass Windows: Pros, Cons, & Differences

Vinyl and fiberglass symbolize two of the most common modern window resources. They are equally deemed cost powerful and practical alternatives to wooden: neither of them necessitating much in the way of annual maintenance or stripping and portray. Even so, even though fiberglass allows for thinner frames although nonetheless giving greater power effectiveness, it is a lot more high-priced than vinyl windows and installation fees are also much larger. There are distinctions in layout and routine maintenance, way too.

Read on for standard data on these two well-known window components, the pros and downsides of each and every, and to aid determine which is the ideal selection for your next window installation.

Vinyl Vs Fiberglass Windows: Pros, Cons, & Differences

Overview of Vinyl Windows:

Vinyl home windows are produced from a materials known as Poly-Vinyl Chloride. Effectively, the home windows are produced from a mix of PVC and other components that make it easier to manufacture and turn into window frames.

Despite the fact that vinyl home windows have been initial produced in the sixties, it wasn’t till the 1970s when they grew to become well-known. They have been noticed as a popular substitution for wooden windows due to the fact they supply increased power effectiveness and are more expense-efficient than wooden. More than fifty percent of new windows mounted right now are vinyl windows.

Installation and Costs

Producing vinyl home windows is regarded as simple, and so way too is installation. Because this material is so commonplace in the industry, and because it is simple to put in, the cost of these windows is normally much more affordable than fiberglass, aluminum, or wooden windows. Though it is best still left to skilled installers, it is feasibly achievable to install vinyl windows oneself if you have expertise undertaking so. PVC by itself is also economical and easy to work with, which signifies that these are inclined to be the least expensive home windows to acquire, even excluding set up charges.


Sturdiness goes hand in hand with price due to the fact if a low-cost window only lasts a handful of a long time, it will need replacing and the fees quickly insert up. Prime-high quality vinyl windows can very last as lengthy as 30 years, despite the fact that you ought to expect to have to substitute them in close to 20 several years. While this is a decent lifespan, vinyl does not very last as extended as fiberglass.


Wooden windows are what most men and women consider to be conventional windows, but vinyl has been all around for much more than 50 many years and is, itself, deemed traditional. The home windows do come in a assortment of colors, despite the fact that white is definitely the most typical, and they can come with a wooden-like texture. The frames are really thick, but they are also hollow so they can be stuffed with insulation.

Vinyl does not require painting, which is wonderful since it indicates you don’t have to worry about getting to strip the paint back again and get better every calendar year. It is also a detriment since it means that you are trapped with the authentic finish that you experienced when set up. It also implies that if any injury does take place, you will have to shell out for repairs fairly than attempt to protect them up.

Vinyl Vs Fiberglass Windows: Pros, Cons, & Differences
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Energy Efficiency

Windows are the greatest energy drain in a home if they are not vitality effective. The frames can be insulated, and quite-excellent quality vinyl home windows do a respectable work of stopping heat reduction. There are far more strength productive choices accessible.

  • No need for annual painting
  • Frames can be insulated
  • Low purchase cost
  • Low installation cost
  • You’re stuck with the original color or design
  • Not as energy efficient as other materials
  • Typically made with wide frames

Vinyl Vs Fiberglass Windows: Pros, Cons, & Differences

Overview of Fiberglass Windows:

Fiberglass is a plastic materials that has been reinforced with glass fibers. Fiberglass windows ended up created to endure warmth and cold and as a means of preventing warmth reduction from homes. The strength of the content signifies that fiberglass frames can be extremely thin, and they can also consider paint so you don’t have to be trapped with the identical search for the subsequent 50 many years, which is roughly how lengthy windows will very last. Nonetheless, fibreglass is not as flexible or straightforward to work with as vinyl. The home windows are pricey, and so also is the cost of installation.

Vinyl Vs Fiberglass Windows: Pros, Cons, & Differences
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Installation and Costs

Fiberglass windows are high-priced, costing as a lot as double the price of vinyl home windows. The inflexibility of the materials also helps make installation much more tough, and this not only can make Diy set up very risky, but it around doubles the cost of obtaining them professionally set up as properly. It is worth bearing in head, even so, that the durability and longevity of fiberglass implies that it can perform out cheaper above a 40- or 50-year time period.


Fiberglass does not warp or crack, even after a long time of use, and it will face up to scorching and cold, as nicely as typical temperature alterations among the two extremes. This indicates that fiberglass home windows can previous as lengthy as fifty years and it will proceed to provide the very same thermal insulation during its lifestyle.


Fiberglass is more powerful than vinyl, which indicates that manufacturers can generate a lot smaller and narrower frames. This is specifically beneficial in big windows because the glazing alone will be the focal level and there will not be an overabundance of plastic body. The material also retains paint, which indicates that, if you want to change the color or look of the frames after five a long time, you can do. There is also a good selection of designs, hues, and textures to choose from when getting.

Energy Efficiency

Fiberglass has been strengthened with glass fibers, and glass is an superb insulator. This indicates that fiberglass home windows will not allow heat to escape your property, minimizing power expenses and stop cold spots around the home windows. Even so, the frames can not normally be loaded with added insulation.

  • 50-year life
  • Can be painted to change the appearance
  • Small frames give a minimalist look
  • Very energy efficient
  • Expensive to buy
  • Expensive to install

Vinyl Vs Fiberglass Windows: Pros, Cons, & Differences

Vinyl Or Fiberglass – Cost

Which content is ideal for you depends on your conditions and needs. In terms of expense, vinyl windows are more affordable to acquire and more affordable to set up. Even so, they have a lifestyle of roughly twenty five many years, compared to the 50 many years of fiberglass, so they will need to have changing twice as typically.

If you intend to remain in the property for much more than twenty years, and you have the budget, fiberglass is most likely your greatest alternative. If you are searching to conserve cash, or you will not be keeping in the residence that extended, vinyl windows are better for you.

Vinyl Or Fiberglass – Durability

Vinyl windows are strong and sturdy and are expected to previous at the very least twenty a long time. Far more often than not, they will last twenty five years, and genuinely very good high quality vinyl home windows can very last 30 several years. Nonetheless, the vinyl does increase and agreement over time and with altering atmospheric situations. This not only implies that they will eventually crack but it means that the insulation layer can degrade over time.

Fiberglass is more robust, does not agreement and broaden, and will last 50 many years. Fiberglass is a lot more durable and has a longer daily life.

Viny Or Fiberglass – Appearance

Yet again, when it will come to appearance, the decision of which window material is far better will come down to your conditions. Vinyl windows have been about for much more than 50 a long time and this, combined with the flexibility of the content alone, means that there is a huge selection of designs, hues, and textures available. Nonetheless, vinyl home windows are not able to be painted, which signifies that you are caught with the colour you choose till you replace the windows.

Fiberglass does occur in a first rate assortment of colours, even though not nevertheless as expansive as is available for vinyl. But the frames are thinner, which some men and women prefer, and the fiberglass accepts and retains paint, so you can possibility the shade anytime you like.

Vinyl Or Fiberglass – Energy Efficiency

1 of the most crucial factors to contemplate when selecting home windows is their strength performance since so significantly power can be lost through poorly insulated home windows. Vinyl windows are great at insulating, specially if the body is loaded with insulator, but fiberglass is deemed fifteen% much more effective than vinyl and wins out in the competitors for better effectiveness.

Vinyl Vs Fiberglass Windows: Pros, Cons, & Differences


Vinyl and fiberglass are two of the most frequent options in modern day window substance and each represent a good different to wood. Fiberglass is much more power efficient, lasts lengthier, and can be painted to change its color and fashion, but that will come at a expense because fiberglass windows are far more costly to acquire and to set up. Take into account what is most crucial to you, and how long you will be in the house, when you make a decision on the variety of windows you have put in.

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Featured Image Credit: Remaining: Gina Leonard, Shutterstock. Correct: Piqsels