High-performance Fiberglass Windows

Fiberglass windows are known for their strength, durability, and increased return on investment, but which fiberglass window is right for you? Our window consults can help you select the right fiberglass windows for your home.

Since they first opened their doors in 1925, in the city of Pella, Iowa – Pella® has continuously been a leader in technology and product innovation. From their retractable window screens that disappear when you are not using them, to their five-layer engineered fiberglass composite, it is easy to see why millions choose Pella.

Best of all, their windows come backed by the industry’s best warranties to give you further peace of mind.

Pella Impervia Fiberglass Windows

We only use products we trust, but ultimately it comes down to the people,

our team cares about their work.

Pella® Impervia® fiberglass windows and doors have the strength and durability to withstand extreme heat and cold temperatures – making them the perfect windows for Missouri & Kansas homes.

Energy Efficient

  • Exceptional energy efficiency
  • Meets or exceeds ENERGY STAR® guidelines


  • Durability and strength of their patented, five-layer fiberglass
  • Won’t warp in the heat or become brittle in the cold
  • Withstands extreme heat and cold (tested from -40ºF to 180ºF)
  • Withstands UV rays
  • Low maintenance


  • Prefinished in 5 different colors
  • Optional dual-color frame lets you choose a white interior frame with a different color for the exterior frame
  • Long-lasting powder-coat finish, will look great for years

Beautiful & Durable

Pella's fiberglass windows are made from the strongest, most durable material available for windows and doors. This allows slim profile designs, which means more glass to look through, and less frame to hinder your view.

Smaller Window Frame = Larger View

Comes in Various Window Styles

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


  • White
  • Black
  • Morning Sky Grey
  • Tan
  • Brown

Expertly Installed Windows

Perhaps one of the most overlooked aspects of buying new windows and doors is proper installation. When you select high quality windows for your home, you want a high-quality installation. We cannot stress this enough, the number #1 reason why homeowners are not happy with their new windows is usually due to poor installation.

This is why we carefully select and train our window crews. Our window crews have been installing windows for over 21 years!

We can’t say this enough:

We love our crews.
Our customers love our crews.
And we are confident you will too!

After each window installation, we receive so many great reviews. Check out our reviews to see what our previous customers are saying and then give us a call! We would be happy to provide you with a no obligation, fiberglass window consultation for your home.

Replacement Window Consultants

Do you need new, energy efficient windows but don’t know where to start?

Let our team help! Though we can install virtually any window for you, let us share our knowledge of the best window replacement options for your home based on quality, energy efficiency, and price.

Let us provide you with an in-home consultation, detailed quote, and all the necessary information you’ll need to select new windows for your home.

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Five-Star Reviews

Check Out Our Testimonials

See what our clients have to say about working with us!
What a fantastic company and group of people. They installed a roof on our church and did an amazing job. They worked their tails off to provide timely and exceptional service, even with a major hiccup in regard to OSB board (hiccup was not due to them). You will not be disappointed in their work ethic and service.

Austin T.

Tampa, FL

Integrity replaced the siding on my home. I was referred to this company by a friend. I'm glad I took their advice because I had a great experience! Everyone I worked with was knowledgeable, trustworthy, professional, and efficient. They did an excellent job keeping me informed through the entire process. The crew that came to my residence was hard working, precise, respectful and they finished early! Afterward, they cleaned up their workspace. My house looks beautiful! I recommend this company and will be contacting them again in the future for any additional work that I need done to my house.

Elaine B.

Tampa, FL

Older house so had two layers of shingles removed and some extra work done for the new roof. Workers were cheerful and professional and got the job done in one day. They were careful to pick up nails and clean up. Roof and gutter look great!

Bill P.

Tampa, FL