Second-Story Addition

Second-Story Addition in Gatineau

Running out of space but love your neighborhood? A second-story addition is one of the smartest ways to double your living space without sacrificing your yard or lot footprint. Entrepreneur Général Gatineau is Gatineau's trusted general contractor for full second-story additions — from structural engineering coordination and framing to insulation, drywall, roofing tie-ins, and finishing. Whether you want two new bedrooms, a home office, or a complete upper-level suite, we deliver results that blend seamlessly with your existing home.

What Our Second-Story Addition Service Includes:

• Feasibility Assessment & Planning: We evaluate your existing foundation, load-bearing walls, and structure to confirm your home can support a second story — and map out the best layout for your needs and budget.
• Permit & Code Compliance: We handle all City of Gatineau building permits and ensure every phase of construction meets Quebec residential building code requirements.
• Structural Framing & Engineered Lumber: Precision framing using engineered lumber and steel where required, coordinated with licensed structural engineers for safe, long-lasting results.
• Roofing Removal & Reconstruction: Careful removal of your existing roof, seamless integration of the new upper floor, and complete reroofing with matching or upgraded shingles and proper waterproofing.
• Insulation & Air Sealing: High-performance insulation in walls, floors, and the new ceiling assembly to meet or exceed Quebec energy efficiency standards — keeping your home comfortable year-round.
• Interior Finishing: Drywall, taping, painting, flooring, trim, doors, and window installations throughout the new upper level — all coordinated by our team so you deal with one contractor, not ten.
• Staircase Design & Installation: Custom or pre-built staircase solutions that connect your existing main floor to the new level with safety, style, and code compliance.
• Electrical & Plumbing Rough-In Coordination: We coordinate with licensed electricians and plumbers to rough in all required services — whether you're adding bathrooms, laundry, or simply lighting and outlets throughout the new floor.

Benefits of Adding a Second Story Instead of Moving

• Maximize Your Existing Lot: Keep your backyard, driveway, and outdoor space intact while dramatically increasing your interior square footage.
• Significant Property Value Increase: A well-executed second-story addition is one of the highest-return renovations available to Gatineau homeowners, often recouping 60–80% or more of construction costs in added resale value.
• Avoid Moving Costs & Market Uncertainty: With Gatineau's real estate market remaining competitive, expanding your current home is often more cost-effective than purchasing a larger property.
• Custom Design to Your Lifestyle: Unlike buying an existing home, your addition is designed around how you actually live — the rooms you need, where you want them, and the finishes you love.
• One Unified Project: Working with a single general contractor means clear communication, one point of accountability, and a coordinated schedule from demolition to final inspection.

Our Second-Story Addition Process

1. Free On-Site Consultation: We visit your home, review your goals and budget, assess structural feasibility, and provide an honest project overview — at no cost to you.
2. Design & Engineering: We work with architects and structural engineers to produce construction drawings and obtain all required stamps and approvals.
3. Permit Submission & Approval: Our team submits all permit applications to the City of Gatineau and manages any follow-up with municipal inspectors.
4. Site Preparation & Roof Removal: We protect your home's interior, remove the existing roof structure safely, and prepare the top of your main floor walls for the new load.
5. Framing, Roofing & Weatherproofing: The new upper floor is framed, the roof is reconstructed, and the entire structure is made weather-tight as quickly as possible to minimize exposure.
6. Mechanical Rough-Ins: Electrical, plumbing, and ventilation are roughed in throughout the new floor per code and your approved plans.
7. Insulation, Drywall & Finishing: Full interior finishing — walls, ceilings, floors, trim, doors, and paint — transforming the raw structure into polished, livable space.
8. Final Inspection & Handover: Municipal inspections are completed, all deficiencies are addressed, and you receive a complete walkthrough of your new upper level.

Frequently Asked Questions — Second-Story Additions

How long does a second-story addition take in Gatineau?

Most second-story additions in Gatineau take between 4 to 7 months from permit approval to final inspection, depending on the size of the addition, complexity of finishes, and municipal processing times. During the design and permitting phase — which typically takes 6 to 10 weeks — we pre-order materials and plan the schedule so construction begins without delay once approvals are in hand.

Can every bungalow or one-story home support a second floor?

Not automatically — but many can with the right engineering. A licensed structural engineer must assess your foundation depth and condition, existing wall framing, and beam spans before any work begins. In some cases, foundation reinforcement or temporary support walls are needed during construction. Entrepreneur Général Gatineau coordinates this assessment as part of our feasibility process so you get a clear, honest answer before committing to a full project.

Do I need to move out during construction?

It depends on the scope and time of year. During the roof removal and re-framing phase — typically 1 to 3 weeks — the home is open to the elements, and most families choose to temporarily relocate for comfort and safety. Our team works efficiently to weatherproof the structure as fast as possible. For the remaining construction phases, many homeowners comfortably remain on the main floor while work proceeds above. We discuss this in detail during your consultation so you can plan accordingly.

For a second-story addition that adds real space, real value, and real craftsmanship to your home, contact Entrepreneur Général Gatineau today. We proudly serve Gatineau and all 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 the home you've always wanted — without leaving the neighborhood you love.

Contact Us

Explore our full range of general contracting services and learn more by visiting https://entrepreneurgeneralgatineau.com/en .

Ready to get started? Fill out our quick form — get your free quote in no time!