What Custom Replacement Windows Are Best: Vinyl or Fiberglass?

If you are looking to install new windows and are having a hard time deciding between vinyl or fiberglass you have come to the right place. There are a few important things you need to consider when choosing between vinyl and fiberglass windows, and it is not always an easy choice. It is important to consider things like: strength, durability, cost, aesthetics and more. In this article, be will be taking a look at the differences between vinyl and fiberglass replacement windows, as well as their pros and cons, to help you make the right choice for your home, budget and lifestyle.

Colors and Finishes

If color and finish are important to you, you might prefer fiberglass replacement windows as there is a greater variety of options to choose from. Similarly to fiberglass windows, vinyl replacement windows generally come in ‘baked-in’ colors. The difference is, fiberglass windows can be painted over once installed, whereas vinyl cannot. If you want to have the option to change the color of your windows at some point, it is best to choose fiberglass. 

Durability 

When it comes to strength and durability, fiberglass windows can be up to eight times stronger than vinyl, which generally means they last a lot longer. While a good quality vinyl replacement window can last up to 30 years or more, fiberglass windows can last up to 50 years or more. Why are fiberglass windows stronger? Well, it comes down to its makeup. While both vinyl and fiberglass frames are made from a type of plastic, fiberglass frames are reinforced with glass fibers, which adds a decent strength to the window. Also, fiberglass does not weaken in the sun like cheaper vinyl does, which is why fiberglass replacement windows last longer. 

Maintenance 

Maintenance of vinyl or fiberglass replacement windows is very similar – neither require much work. Any mold, mildew, dirt or moss can easily be hosed off and then scrubbed down with a sponge and some warm water. However, both fiberglass and vinyl windows do require some minimal care over time. 

Insulation Value 

Again, vinyl and fiberglass are on par in terms of insulation. Both replacement windows have hollow cavities, which can be filled with insulation. They both do an excellent job at slowing down the transmission of outside temperatures inside the house.  Individual performance numbers can vary dramatically per manufacturer, so it’s important to make sure the energy efficiency values are comparable when making a final decision.

Price 

While it depends which manufacturer you choose, generally speaking vinyl replacement windows cost less than fiberglass windows. On average, fiberglass windows can cost anywhere between 10-30% more than vinyl windows (or much more, depending on the brand.) That’s going to add up quickly if you’re considering replacing all the windows in your home.  

Which is Best? Vinyl or Fiberglass? 

There are plenty of similarities between vinyl and fiberglass replacement windows – that is why homeowners have such a tough time choosing between the two. If you are interested in replacement windows that will last for a long time or have a slightly better resale value, fiberglass replacement windows would be the optimal choice. However, it really does come down to personal preference and budget, both vinyl and fiberglass replacement windows will do the job as intended.   

If you are looking to replace your windows and are still unsure if vinyl or fiberglass is right for you, or if you have another material in mind, it is always best to talk to a home improvement contractor. They will be able to give you expert advice and a recommendation based on your individual needs, budget and style.