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7131 Rue Bélanger, Montreal,
Quebec H1M 3T5, Canada
Quebec H1M 3T5, Canada
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4389208647
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contact@trossconstruction.ca
Running out of space in your home? A house extension is the perfect way to increase living area, enhance comfort, and boost your property’s value — without the cost and stress of moving. At Tross Construction, we provide custom-designed, fully engineered house extensions across Montreal, built to match your lifestyle, budget, and architectural style.
Whether you need additional bedrooms, a larger kitchen, a second floor, or more functional living space, our team delivers extensions that look seamless and feel like a natural part of your home.
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A well-planned extension not only expands your home but also improves layout, lighting, and long-term property value. We handle every stage of the process — from design to permits to finishing — ensuring high-quality results.
Perfect for expanding your:
Kitchen
Living room
Dining area
Family room
Rear extensions are popular because they create open-concept spaces and improve natural lighting.
Ideal for homes with unused side yards. Great for building:
Mudrooms
Laundry rooms
Storage areas
Extra bathrooms
Side extensions improve functionality without altering your main floor layout.
If your family has outgrown your space, adding a second storey is the best way to significantly increase square footage. We build:
All structural work is engineered for safety and stability.
Extend your living space with a bright and relaxing sunroom. These spaces offer:
A professionally constructed extension offers long-term value and convenience.
We begin by understanding your goals, needs, and preferred design style. Our team evaluates your space and provides tailored recommendations.
We collaborate with architects and engineers to:
Draft detailed construction plans
Check zoning and municipal regulations
Prepare for building permits
Determine structural requirements
You receive clear drawings and a complete extension plan.
Most extensions in Montreal require permits. We manage all application steps to ensure compliance with local regulations.
Once approvals are ready, we begin building your extension:
Excavation (if required)
Foundation work
Framing
Roofing and exterior finishing
Electrical and plumbing
Insulation and interior finishing
All construction is supervised by certified professionals.
We complete the project with interior finishes, painting, flooring, and a full inspection to guarantee quality.
From design to final finishing, we manage every step of the extension process.
Our team has years of experience building safe, compliant extensions in Montreal.
We use durable materials that match or enhance the look of your existing home.
You receive updates at every stage of construction.
We ensure your extension blends perfectly with your home’s structure and style.
We follow strict timelines while maintaining exceptional workmanship.
Get a quoteCreate a larger kitchen with more counter space, storage, and natural light.
Add a spacious bedroom with a walk-in closet and private bathroom.
Create a quiet, dedicated workspace — perfect for remote work.
Increase income by adding a separate living space.
Enhance comfort and improve hosting opportunities.
Yes. Most extensions require municipal permits. We handle the entire process for you.
Depending on complexity, most extensions take 8–20 weeks.
Absolutely. We match architectural style, colours, materials, and roofing.
Yes — extensions consistently provide high ROI and improve market appeal.
Yes. We specialise in designing and building extensions for tight or restricted spaces.
When you need extra space, a professionally built extension is the perfect solution. At Tross Construction, we deliver custom extensions designed for comfort, beauty, and long-term durability.
Contact us for a free consultation
Serving Montreal and surrounding regions
Licence RBQ #5841923501
Tross Construction Inc. is a company specializing in interior and exterior renovation projects, masonry, concrete and everything related to finishing work.
Montreal, QC
Quebec City, QC