Fiberglass vs. Vinyl Windows: Which is Best?

July 27, 2023
Fiberglass vs Vinyl Windows - Which is Best

As experts in residential windows, we thought we would take time to dissect the positive attributes of both fiberglass and vinyl windows. However, your unique situation will determine which is best.

Fiberglass Windows

Fiberglass windows are known for their strength and durability, which is why installing fiberglass windows on your home will increase its value.

We are proud to offer Pella windows because they have continuously been a leader in technology and product innovation for fiberglass windows. This American company offers a five-layer engineered fiberglass composite that we are quick to recommend – and the windows come backed with one of the best warranties in the industry.

The Pella® Impervia® fiberglass windows can withstand extreme hot and cold temperatures without warping or becoming brittle – making them the perfect windows for homes in the Midwest. In addition, they offer exceptional energy efficiency and meet or exceed ENERGY STAR® guidelines.

Besides offering energy efficiency, the Pella® Impervia® fiberglass windows purchased through Integrity require little maintenance.

While all of this is important, you might be wondering how the product will look installed in your home.

The good news is that the Pella fiberglass windows have the look of painted wood. While they come prefinished in five colors, you can also choose a white interior frame with a different color for the exterior. And the long-lasting powder-coat finish will look great for years.

Additionally, the durability of this well-engineered window allows for a slim profile design. This means you have more glass to look through and less frame surrounding it.

Integrity offers Pella Windows in a variety of styles, including:

  • Sliding windows
  • Casement Windows
  • Double-Hung Windows
  • Single-Hung Windows
  • Sliding Windows
  • Bay or Bow Windows
  • Awning Windows

Vinyl Windows

Our vinyl windows offer an affordable option for Kansas City homeowners. Integrity offers durable, reinforced, double pane, and energy-efficient vinyl replacement windows.

Vinyl windows are popular choices for a good reason. They are low maintenance, are resistant to scratches and rot, and require little maintenance.

Talk with your Integrity window consultant about the energy efficiency of vinyl windows. They come in several tiers, with the highest offering more efficiency.

Windows Must Be Properly Installed

Whether you are leaning toward fiberglass or vinyl windows for your Kansas City home, it is essential that you choose the right company to handle the installation. Our crews are highly-trained – we even have the Simonton Preferred Installer designation.

A window is only as good as its installation. So when you hire Integrity for the job, you can rest easy knowing that your windows will last for years.

Talk With Our Window Consultants

Are you still unsure whether fiberglass or vinyl windows are best for your home and budget? Contact Integrity Roofing, Siding, and Windows for a free, no-obligation estimate. We have two offices located in Lee’s Summit and Warrensburg, but we help homeowners all over the KC Metro area. We have been installing windows for close to two decades, and we can’t wait to serve you.

Please fill out the contact form on our website to schedule a consultation or be informed about exciting new window offers.


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