High and Low profile fix windows offer sleek aesthetics and unobstructed views, enhancing natural light and outdoor visibility. Their energy-efficient designs also contribute to improved insulation and reduced energy costs.

325 - FIX

Introducing the next evolution of the window.

Exceptional Strength & Structural Stability
Wide Temperature Tolerance
Energy Savings
Customization & Aesthetic Flexibility
Condensation & Humidity Control

Explore Our 325 Series

Premium Fiberglass Windows and Doors

CASEMENT, AWNING, HIGH & LOW PROFILE FIXED WINDOW 325 SERIES

Drawings (PDF)

Drawings (CAD)

Installation - Single

Installation - Coupled

More robust

Discover the pinnacle of durability with our state-of-the-art windows, designed to provide unmatched strength and resilience. Engineered with advanced materials and cutting-edge technology, our windows stand out for their superior robustness, offering a range of benefits that set them apart

More luminous

Transform your living environment with our exceptional windows designed to maximize natural light and enhance the brightness of your home. Our windows are engineered to deliver unparalleled luminosity, creating vibrant, inviting spaces that feel open and airy. Here’s how we achieve this brilliance

Greater efficiency

Elevate the performance of your home with our cutting-edge windows, engineered to deliver exceptional efficiency across multiple dimensions. Designed with the latest advancements in window technology, our windows offer greater efficiency, ensuring you enjoy a more comfortable, cost-effective, and eco-friendly living environment. Here’s how our windows stand out

An Extensive Range of Color Choices

At Inline Fiberglass, we offer a vast array of color choices for your windows and doors, both inside and out. Our durable materials allow you to select any color—light or dark, standard or custom. With our advanced capabilities, we can even match any color to meet the specific needs of your project. As an AAMA certified paint applicator, we are proud to be listed on the Verified Component List, ensuring the highest quality in every product.

A pie chart showing standard colors and limitless color options

Custom Color Matching

Need a specific shade? Our team can match any color to ensure your project is exactly as envisioned.

Precision in Color

Durable Finishes

Our fiberglass windows and doors are not only beautiful but also built to last, with finishes that withstand the test of time.

Long-lasting Quality

AAMA Certified

As an AAMA certified paint applicator, we adhere to the highest industry standards for quality and performance.

Trusted Excellence

Quality You Can Trust

IGMAC Certified Glass Units for Superior Performance

At Inline Fiberglass, we take pride in offering IGMAC certified insulating glass units (IGUs) that guarantee exceptional quality and performance. This certification assures window and door manufacturers, building code officials, architects, specifiers, and home buyers that our products are designed to meet or exceed all applicable codes and standards, ensuring peace of mind with every purchase.

Our flexibility in providing both double and triple glass options allows us to cater to your specific project requirements. With Inline’s trained personnel, you can trust that you will receive the right solution tailored to your needs, enhancing the energy efficiency and aesthetic appeal of your windows and doors.

Choose Inline Fiberglass for your next project and experience the difference that certified quality makes. Our commitment to excellence ensures that you receive the best fiberglass windows and doors in the region, designed to stand the test of time.