Fiberglass Windows and Doors
Durable. Efficient. Beautiful.
Petra’s fiberglass windows and doors deliver high-performance insulation without compromising aesthetics. Built in Canada and tested to meet strict efficiency standards, these systems offer the energy savings, comfort, and reliability your project demands—whether you’re building residential or commercial.
Why Choose Petra’s Windows and Doors?
Fast, Accurate Installation
Factory-cut for your layout, including window and door openings, SIPs arrive jobsite-ready to reduce errors and speed up assembly.
Exceptional Energy Efficiency
Continuous insulation and minimal thermal bridging deliver up to 50% better performance than conventional construction.
Superior Airtightness & Comfort
Creates a sealed envelope that reduces drafts, moisture issues, and airborne contaminants.
Net-Zero & Passive House
Meet high-performance building codes and sustainability goals with ease.
Window Models Available
Choose from a full range of fiberglass window styles:
- Casement windows
- Awning windows
- Double-hung
- Bay and bow windows
- Side-slider windows
- Custom shapes
Energy-Efficient Fiberglass Doors
Designed to perform in all seasons with elegant finishes and low maintenance:
- Entry doors
- French doors
- Patio doors
Installation Benefits
All our systems are designed with builders in mind. That means:
- Simple, efficient installation
- Reliable fit and sealing
- Compatibility with SIPs and ICF wall systems for an airtight envelope
Performance Framing Systems
We offer high-performance fiberglass window framing systems, designed for strength, insulation, and a clean glass-to-frame ratio. These frames deliver reliable performance and consistent design across all applications.
Technical Data Sheets
Let’s Talk About Your Project
From early planning to last-mile details, our experts are here to help you build smarter. Let’s find the right solution for your home or commercial project.
FAQs
Got questions? We’ve answered the most common ones below. If you need specs, pricing, or technical support tailored to your project, reach out to us and we’ll get you the details you need.
How do these compare to vinyl or aluminum windows?
Fiberglass has a higher strength-to-weight ratio, better thermal stability, and longer lifespan than vinyl or aluminum. It also supports slimmer frames for more glass and light.
What makes fiberglass better in extreme climates?
It expands and contracts less than vinyl or metal, which reduces seal failures, air leaks, and long-term wear—especially in Canadian winters.
Are they certified for energy-efficient building standards?
Yes. Our windows and doors are ENERGY STAR certified and meet or exceed the standards for LEED, Passive House, and net-zero ready construction.
Do you offer installation support?
We provide product guidance and system compatibility info to ensure smooth installs—especially with SIP and ICF builds.
Can I customize sizes and configurations?
Absolutely. We offer a wide range of options, including custom dimensions, finishes, and hardware.