Secondary Suite Egress Window

Egress Window Installation for Secondary Suites

Planning a legal secondary suite in Gatineau? One of the most critical — and most overlooked — requirements is a proper egress window. Building codes require that every bedroom in a basement or secondary suite have a window large enough to serve as an emergency exit. Entrepreneur Général Gatineau handles the full egress window installation process from permit to finish, ensuring your suite is safe, code-compliant, and ready for tenants or family members.

Whether you're converting an existing basement into a rental unit or building a brand-new in-law suite, our team manages every step: structural cutting, window well construction, waterproofing, framing, and finishing. We work with Gatineau's municipal permitting office so you don't have to worry about the paperwork.

What Our Egress Window Service Includes:

• Free On-Site Assessment: We visit your property, measure the existing openings, evaluate the foundation wall type (poured concrete, block, or stone), and confirm which window locations meet the National Building Code of Canada minimum opening requirements.
• Permit Application & Compliance: Our team prepares and submits the required permit application to the Ville de Gatineau on your behalf, ensuring full compliance with local zoning and building regulations before any work begins.
• Precision Foundation Cutting: Using diamond-blade concrete saws and core-drilling equipment, we cut clean, accurate openings in your foundation wall with minimal disruption to the surrounding structure.
• Window Well Installation: Where required, we excavate and install a properly sized window well with a gravel drainage bed to prevent water infiltration and ensure the egress opening remains accessible year-round.
• Waterproofing & Sealing: Every opening is sealed with high-performance waterproofing membrane and hydraulic cement to protect your basement against water intrusion — critical in Gatineau's freeze-thaw climate.
• Framing & Insulation: We frame the new rough opening to code, install a properly sized lintel or header for structural support, and insulate to meet Quebec's energy efficiency standards.
• Window Supply & Installation: We supply and install ENERGY STAR-rated casement or sliding windows that meet or exceed the minimum 0.35 m² net clear opening required for egress, in vinyl or fibreglass frames suited to the Quebec climate.
• Interior & Exterior Finishing: Interior drywall returns, window trim, and exterior finishing are completed to match your existing suite finishes — leaving a clean, professional result inside and out.
• Final Inspection Coordination: We coordinate the municipal final inspection and walk you through the completed work so you have everything you need to pass and legalize your secondary suite.

Why Egress Windows Matter for Secondary Suites

In Gatineau and across Quebec, a basement bedroom without a properly sized and accessible egress window cannot legally be classified as a bedroom — which means your secondary suite may not qualify for a certificate of occupancy or rental permit. Beyond legality, egress windows are a genuine life-safety feature: in the event of a fire, a properly sized window can be the difference between escape and tragedy. Installing compliant egress windows protects your tenants, your investment, and your liability as a property owner.

• Legalize Your Rental Unit: Meet Gatineau's municipal requirements to rent your basement suite legally and with confidence.
• Increase Property Value: A permitted, legal secondary suite adds significant resale value to your home.
• Improve Natural Light: Larger egress windows dramatically brighten basement living spaces, making them more attractive to tenants and family members alike.
• Enhanced Safety: Provide every occupant of your secondary suite with a safe, accessible emergency exit in compliance with fire safety standards.
• Better Ventilation: Operable casement-style egress windows improve air circulation, reducing moisture and improving air quality in below-grade spaces.

Our Egress Window Installation Process

We follow a clear, step-by-step process designed to minimize disruption to your home while delivering a durable, code-compliant result:

1. Step 1 — Consultation & Site Visit: We meet you at your property to assess your foundation, confirm bedroom locations, and identify the optimal window placement for code compliance and natural light.
2. Step 2 — Permit & Planning: We submit your permit application and prepare a detailed scope of work. Once the permit is approved, we schedule your installation date.
3. Step 3 — Excavation & Cutting: Our crew excavates the exterior (if required for the window well), then uses precision equipment to cut the foundation opening cleanly and safely.
4. Step 4 — Structural Work: We install the header or lintel above the new opening to maintain structural integrity, frame the rough opening, and prepare it for the window unit.
5. Step 5 — Waterproofing: The opening perimeter is waterproofed inside and out before the window is set, protecting your basement against leaks for years to come.
6. Step 6 — Window Installation & Finishing: The window unit is installed, shimmed, and sealed. Interior framing, insulation, drywall, and trim are completed. Exterior finishing is matched to your home's existing facade.
7. Step 7 — Inspection & Sign-Off: We coordinate the final municipal inspection with you and ensure all documentation is in order for your suite's legal status.

Frequently Asked Questions

What is the minimum egress window size required in Gatineau?

Under the National Building Code of Canada (NBC 2020), adopted in Quebec, every bedroom must have at least one window with a minimum net clear opening of 0.35 m², with no dimension less than 380 mm. The window sill must also be no more than 1,000 mm above the finished floor. Our team will confirm the exact requirements for your specific suite during the free on-site assessment, as local amendments may apply.

Do I need a permit to install an egress window in Gatineau?

Yes. Any work that involves cutting into a foundation wall or modifying a structural element requires a building permit from the Ville de Gatineau. Skipping this step can result in fines, required demolition of unpermitted work, and complications when selling your property. Entrepreneur Général Gatineau handles the full permit process on your behalf, so you can proceed with confidence.

How long does an egress window installation take?

Most egress window installations are completed in one to two days once the permit is in hand. This includes excavation (if needed), cutting, framing, waterproofing, window installation, and basic interior finishing. More complex projects — such as multiple windows, stone foundations, or full secondary suite finishing — may take longer. We'll provide a clear timeline during your consultation.

For professional egress window installation that gets your secondary suite legal, safe, and ready to rent, contact Entrepreneur Général Gatineau today. We proudly serve property owners across Gatineau and surrounding communities including Hull, Aylmer, Buckingham, Masson-Angers, Deschênes, Pointe-Gatineau, Lucerne, and Val-Tétreau. Get your free, no-obligation quote and take the first step toward a fully compliant, income-generating secondary suite today!

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