Certified Fiberglass Windows and Doors, Backed by Real Product Data
When performance matters, window and door claims need to be clear, verifiable, and tied to the right product.
Verified Performance Through Testing and Certification
Inline Fiberglass Ltd. manufactures high-performance fiberglass windows and doors for residential, commercial, architectural, and Passive House projects.
Our products are supported by technical testing, third-party certification programs, NFRC listings, AAMA ratings, IGMAC-certified glass units, ENERGY STAR options, and product-specific documentation.
Whether you are a homeowner comparing energy-efficient windows or a specifier preparing a submittal package, our team can help you find the correct product data for your project.
Certifications and ratings can vary by product series, glazing package, size, and configuration. Contact Inline to confirm the correct documentation before specifying or ordering.
Performance Documentation You Can Build Around
Choosing windows and doors is not just about style. The right product can affect thermal comfort, energy performance, durability, condensation resistance, project compliance, and long-term value.
That is why Inline makes performance information available to homeowners, architects, builders, developers, and commercial project teams. Our goal is to make it easier to compare products, confirm requirements, and move forward with confidence.
Inline products include current NFRC listings and AAMA ratings. All Inline products use IGMAC-certified glass units. ENERGY STAR performance is available across all triple-glazed products and select double-glazed products.
Inline’s 325 Series, 400 Series, 600 Series, and 3000 Series products can meet ENERGY STAR Most Efficient criteria when configured with triple glazing. ENERGY STAR also applies to all triple-glazed products and select double-glazed products.
For Passive House and high-performance projects, select Inline window and door systems have PHIUS certification, and select 3000 Series products are also PHI certified.
Product Certifications, Ratings & Sustainability Resources
PHIUS Certified Products
PHIUS certification helps identify products suitable for high-performance building projects where energy efficiency, thermal comfort, and envelope performance are major priorities.
PHI Certified Products
Inline’s PHI-certified products include the 3000 Series tilt-and-turn and fixed windows. Contact Inline to request the correct PHI documentation for your project.
NFRC Listings
NFRC listings help buyers and project teams compare window and door energy performance using standardized product data.
All current Inline products have NFRC listings. NFRC data can help compare energy performance by product and configuration, including metrics such as U-factor, Solar Heat Gain Coefficient, and Visible Transmittance. Exact values should be confirmed using the current product documentation for the selected series, size, and glazing package.
If your project requires NFRC documentation, Inline can help identify the correct product listing and supporting information.
AAMA Ratings
AAMA ratings help show how window and door products perform under standardized testing conditions.
All current Inline products have AAMA ratings. AAMA ratings help architects, builders, contractors, and commercial project teams review tested performance before selecting products for residential, commercial, or high-performance projects. For finish-related claims, AAMA coating language should only be used where it applies to applied finishes.
AAMA information may be used to review product performance related to structural strength, water resistance, air infiltration, and design pressure, depending on the product and rating.
IGMAC-Certified Glass Units
The glass unit is a major part of window and door performance. It affects energy efficiency, condensation resistance, comfort, and long-term durability. All Inline products use IGMAC-certified insulating glass units. This supports reliable glass-unit performance across Inline’s fiberglass window and door systems.
For projects with specific energy, comfort, or glazing requirements, Inline can help review available glass packages and confirm which configuration is the right fit.
ENERGY STAR and ENERGY STAR Most Efficient
Inline offers ENERGY STAR performance across all triple-glazed products and some double-glazed products.
This makes Inline a strong choice for homeowners and project teams looking for certified fiberglass windows in Canada, energy-efficient fiberglass doors, and high-performance glazing options.
Because ENERGY STAR eligibility depends on the product, glass package, and configuration, our team can confirm the correct documentation for your project before you move forward.
Environmental Product Declaration
Inline’s Environmental Product Declaration (EPD) is available to support architects, builders, developers, and project teams that need transparent product documentation for submittals and sustainability review.
The EPD is also commonly used during submittal review for other Inline systems where accepted by the project team. If your project requires EPD documentation, our team can help confirm how the document should be included in your package.
Built for Homeowners, Architects, Builders, and Specifiers
Inline manufactures a broad fiberglass product lineup for different project needs.
For Homeowners
Certifications and ratings make it easier to compare window and door options with confidence.
If you are replacing old windows, upgrading to triple glazing, or planning a more energy-efficient home, Inline can help you understand which fiberglass products fit your goals. Our team can explain product options, ENERGY STAR availability, glass packages, colours, sizing, and the next step for a quote.
Inline installs directly and has its own installers. For replacement projects, Inline can provide a turnkey service that includes removing existing windows and installing new fiberglass windows tailored to the project.
For Architects and Specifiers
Technical documentation helps reduce risk during design, specification, and submittal review.
Inline can support your team with product data, certification details, NFRC information, AAMA ratings, PHIUS and PHI documentation where applicable, EPD files, glass package details, and drawings.
If you are specifying Passive House windows in Canada, commercial fiberglass windows, or custom fiberglass window systems, our technical team can help confirm which products and documents belong in your package.
For Builders and Contractors
Clear performance documents help your team quote accurately, coordinate project details, and reduce late-stage surprises.
Inline supports standard and oversized products, custom sizing, and custom colour options. If your project requires specific ratings, glazing packages, or documentation, our team can help confirm the right product path before the order moves forward.
For Commercial Projects
Commercial and multi-unit projects need reliable documentation before product decisions are made.
Inline fiberglass window and door systems can support projects where durability, energy performance, design flexibility, and technical confidence matter. Our team can help with project-specific product guidance, certification documentation, glazing review, and submittal support.
Visit the Inline Showroom
Want to review product options in person?
Visit Inline Fiberglass Ltd. at our Etobicoke showroom to see fiberglass window and door products, discuss your project, and speak with our team.
Inline Fiberglass Ltd.
30 Constellation Crt
Etobicoke, ON, Canada
M9W 1K1
Showroom Hours
Monday to Friday: 8:30 a.m. – 5:00 p.m.
Saturday: 10:00 a.m. – 2:00 p.m.
Closed on holidays.
Common Questions About Certifications
Find clear answers to common questions about Certifications
Are all Inline Fiberglass products certified?
All current Inline products have NFRC listings and AAMA ratings, and all Inline products use IGMAC-certified glass units. PHIUS, PHI, ENERGY STAR Most Efficient, and EPD documentation apply by product, glazing package, or configuration. Contact Inline to confirm the correct certification documents for your project.
If your project depends on a specific certification, contact Inline to confirm the correct product and documentation.
Which Inline products are PHIUS certified?
Inline’s PHI-certified products include the 3000 Series tilt-and-turn and fixed windows.
Which Inline products are PHI certified?
Inline’s 3000 Series Tilt & Turn and Fixed Windows are PHI certified.
Contact Inline to request the specific product data for your project.
Do Inline products have NFRC listings?
Yes. All current Inline products have NFRC listings.
NFRC information can help with product comparison, energy performance review, and project documentation.
Do Inline products have AAMA ratings?
Yes. All current Inline products have AAMA ratings available.
AAMA ratings help support product review for structural and performance requirements.
Are Inline products ENERGY STAR rated?
ENERGY STAR applies to all Inline triple-glazed products and select double-glazed products. Inline’s 325 Series, 400 Series, 600 Series, and 3000 Series products can meet ENERGY STAR Most Efficient criteria when configured with triple glazing.
Do Inline products use IGMAC-certified glass?
Yes. All Inline products use IGMAC-certified insulating glass units.
Does Inline have an EPD?
Yes. Inline’s EPD is publicly available and should be prominently displayed on the website. The current EPD applies specifically to the 300 Series fixed windows and 325 Series casement, awning, and fixed windows. It may also be accepted for other Inline systems during submittal review, depending on project requirements.
Can I download technical documents without filling out a form?
Yes. Technical downloads should be public and easy to access.
For project-specific questions, product selection, or submittal support, you can also contact Inline directly.
Can Inline help with custom sizes and colours?
Yes. Inline offers standard and oversized products, custom sizing, and custom colour options.
For applied finishes, AAMA coating applies by specification. Contact Inline to confirm finish options and project requirements.
Does Inline install directly?
Yes. Inline installs directly.
If your project has specific installation, service, or warranty questions, our team can help route you to the right next step.
Need Certified Product Data for Your Project?
Tell us what product or project you are reviewing. Our team will help identify the relevant certification, testing, and technical documents.
We respect your privacy and will only use your details to respond to your request.