Inline Fiberglass manufactures high-performance fiberglass windows and doors designed to combine durability, energy efficiency, design flexibility, and long-term performance. As a fully integrated fiberglass manufacturer, Inline controls the process from fiberglass lineal production and painting through design and final assembly.
Inline Fiberglass is a Canadian manufacturer specializing exclusively in fiberglass windows and doors. The company describes itself as a fully integrated manufacturer, controlling the production process from pultruded fiberglass lineals and painting through design and final assembly.
Fiberglass is used throughout Inline's window and door systems to provide a combination of structural strength, durability, thermal performance, and dimensional stability. Inline offers a broad selection of window and door types and combinations for residential, commercial, and architectural applications.
The company's current product range includes multiple fiberglass window series and door systems, with options for different operating styles, configurations, glazing packages, colours, hardware, and architectural requirements.
Inline Fiberglass is a strong option for homeowners looking for durable, low-maintenance windows and doors with the design flexibility of fiberglass. The material is suited to projects where long-term performance, energy efficiency, architectural appearance, and colour customization are important.
Inline's manufacturing approach also gives it control over the design and production process, while its broad product range allows homeowners to coordinate different window and door styles throughout a property.
Fiberglass construction
Canadian manufacturing
Fully integrated manufacturing process
Strong and durable frames
Low thermal expansion
Energy-efficient designs
Double- and triple-glazing options
Custom colour matching
Wide range of window styles
Multiple door configurations
Architectural design flexibility
Low-maintenance materials
IGMAC-certified insulating glass units
AAMA-certified painting capabilities
Inline says its fiberglass systems are engineered for durability and energy efficiency, while its product pages highlight custom colours, IGMAC-certified glass units, and double- and triple-glazing options.
Fiberglass provides a strong, durable frame material designed for long-term performance and dimensional stability.
Inline designs its windows and doors to support energy efficiency and comfortable interior environments.
Inline offers extensive colour choices and can custom-match colours for specific projects.
Inline offers both double- and triple-glazed insulating glass configurations depending on project requirements.
A broad selection of window and door configurations allows Inline products to work across contemporary, traditional, and architectural projects.
Side-hinged windows that crank outward to capture side breezes and direct fresh air into your home. Delivers strong energy performance and a tight, weather-resistant seal when closed.
Hinged along the side to swing open toward the inside of the room. Provides easy exterior glass cleaning from indoors and flexible ventilation for hard-to-reach exterior spaces.
Top-hinged windows that open outward from the bottom to create a protective glass awning. Allows comfortable indoor ventilation even during light rainfall.
Dual-action windows that tilt inward at the top for secure ventilation or swing open from the side for full airflow and effortless cleaning. Combines versatile operation with superior thermal insulation.
Stationary, non-opening windows designed to maximize natural daylight and frame broad exterior views. Delivers high energy efficiency with airtight frame construction.
Custom-shaped non-opening frames, including arches, angles, and custom geometric curves. Adds architectural character and daylight to unique wall spaces.
Tailor-made multi-window combinations and custom dimensions built to fit exact architectural plans. Allows flexible combinations of fixed and operable styles within a unified frame.
Durable front entry doors crafted from high-strength fiberglass to resist warping, denting, and weather wear. Offers excellent insulation and low maintenance for welcoming home entryways.
Versatile exterior swing and patio doors built for reliable long-term performance. Provides strong security, weatherproofing, and thermal protection for side or rear entrances.
Made-to-order entry designs combining doors, transoms, and side panels. Engineered to fit non-standard openings and deliver a custom-designed entryway.
Inline Fiberglass Gallery
Inline Fiberglass Gallery
Inline Fiberglass Gallery
Inline Fiberglass Gallery
15 Binnington Court, Kingston, Ontario K7M 8M9
From your first consultation to final installation, we take care of every step. As a full-service Canadian window and door company, we provide exceptional service and complete customer satisfaction.
We assess your project needs and discuss the best options for your home.
One of our team members will visit your home, take precise measurements and provide clear pricing.
An order from our suppliers will be placed and delivered within several weeks.
Our expert installation team will install the windows or doors and ensure everything meets your standards.
We believe that dependable products should be matched with dependable installation. Our 2 Year Craftsmanship Warranty provides additional coverage for eligible installation-related concerns, separate from Inline Fiberglass’s manufacturer warranty.
For two years following substantial completion of your installation, The Window Centre stands behind the workmanship performed by our installation team, including:
Window & Patio Door Alignment: Proper positioning, levelling, squaring, and initial adjustments to support smooth operation and appropriate clearances.
Installation & Secure Fitting: Correct fastening and installation of windows and patio doors in accordance with the scope of the original project.
Insulation & Weatherproofing: Installation-related shimming, insulation, perimeter sealing, and weatherproofing completed as part of the original installation.
Interior & Exterior Finishing: Workmanship associated with trim, caulking, and related finishing details included in your original installation agreement.
Workmanship-Related Corrections: Assessment and correction of deficiencies directly attributable to our original installation work, including necessary adjustments to address those deficiencies.
The manufacturer’s warranty includes the following coverage:
Fiberglass Frames: Lifetime, non-prorated coverage for major material or manufacturing defects that render the frame structurally unsound.
Factory-Applied Painted Finishes: Lifetime, non-prorated coverage against specified defects, including chipping, cracking, pitting, warping, and blistering, provided the products are properly maintained. Normal fading, chalking, and surface dirt or staining are excluded.
Optional Interior Wood Veneer: Lifetime, non-prorated coverage for veneer adhesion. The veneer must be painted or stained and sealed immediately after installation to maintain coverage.
Moving Parts: Lifetime, non-prorated coverage for major material or manufacturing defects that render the product unserviceable. Hardware installed in coastal or salt-water environments is excluded unless upgraded coastal hardware is ordered.
Insulated Glass Units: Lifetime, prorated coverage for qualifying sealed-unit manufacturing defects that cause material visual obstruction. Replacement glass units are provided at no charge for qualifying failures before the 20th anniversary of purchase. After 20 years, the owner is responsible for 80% of the replacement cost. Labour to replace a failed sealed unit is covered for the first year after installation and/or delivery.
The manufacturer’s warranty has specific exclusions and installation requirements. It does not cover, among other things, normal wear and tear, structural movement, accidental glass breakage, certain environmental damage, or problems resulting from improper installation, finishing, use, or maintenance.
What are Inline Fiberglass windows made from?
Inline windows and doors are manufactured using fiberglass components. Inline controls its fiberglass lineal manufacturing, painting, design, and final assembly as part of its integrated manufacturing process.
Can Inline Fiberglass windows be custom coloured?
Yes. Inline states that it offers a wide range of colours and can custom-match colours for specific projects. The company is also an AAMA-certified paint applicator.
Can I get double- or triple-glazed Inline windows?
Yes. Inline offers both double- and triple-glazed insulating glass options, depending on the product and project requirements.
Are fiberglass windows good for Canadian winters?
Fiberglass is well suited to demanding climates because of its durability and dimensional stability. The appropriate glazing, weather sealing, configuration, and professional installation are also important factors in cold-weather performance.
What is the difference between fiberglass and vinyl windows?
Fiberglass provides a strong, dimensionally stable frame with a different appearance, structural profile, and performance characteristics than vinyl. The best option depends on the home's design, budget, performance requirements, and desired lifespan.
From energy-efficient replacement windows to custom architectural projects, Inline Fiberglass offers durable window and door systems designed for long-term performance. With fiberglass construction, extensive colour options, double- and triple-glazing capabilities, and a broad range of operating styles, Inline can provide solutions for a wide variety of homes and buildings.
The Window Centre can help you compare Inline Fiberglass products, configurations, glazing options, colours, and hardware to find the right solution for your home.
Call us at (613) 546-2221 or email info@thewindowcentre.ca to see which products would be the right fit for your home.
