

Expand your footprint with seamless home additions tailored to Mississauga building standards.
We handle all Mississauga-specific zoning applications and building permits to ensure your project is 100% compliant with municipal bylaws. This prevents costly work-stop orders and ensures your addition increases your property's legal resale value through proper documentation.
Our engineering-first approach ensures a seamless and stable bond between your existing home and the new addition. We utilize specialized foundation reinforcements to prevent the common issue of 'settlement cracks' that occur when new structures are poorly integrated.
We pride ourselves on matching existing exterior finishes, from specific Mississauga brick patterns to custom window trims. Your new addition will look like a natural extension of the original design, preserving and enhancing your home's aesthetic and neighborhood character.
We begin by surveying your Mississauga property to determine what can legally be built according to your specific land-use zone. This step is crucial for identifying hidden constraints like utility easements or protected trees that could influence the addition's design. We provide a preliminary budget so you can make informed decisions before investing in architectural drawings.
Our designers create detailed 3D models of your addition, ensuring it complements your existing home's style. We then handle the entire Mississauga building permit application, including the submission of structural engineering reports and HVAC calculations. This rigorous preparation ensures that the local building department has everything they need for a quick approval.
Construction begins with the foundation, where we use precision pouring and waterproofing techniques tailored to the GTA's clay-rich soil. We then construct the 'shell' of the addition, focusing on airtight framing and superior insulation to meet modern energy standards. This phase is handled by our most experienced crews to ensure the structural shell is perfectly plumb and squared.
Once the addition is weather-tight, we focus on the interior finishes and the seamless connection to your original home. This includes matching floor levels, extending plumbing and electrical systems, and meticulously applying paint and millwork. We perform a final walkthrough with you and the Mississauga city inspector to ensure every detail meets our high standards and local codes.
A minor variance is required if your proposed addition doesn't strictly adhere to the Mississauga Zoning By-law, such as being too close to a property line or exceeding lot coverage. We represent you at the Committee of Adjustment, preparing all technical drawings and justifications needed to prove your addition won't negatively impact the neighborhood. Our long history with local planners helps streamline this often-complex process.
Costs vary significantly based on whether you are adding a second story or a ground-floor extension. Generally, in Mississauga, you can expect to invest between $300 to $500 per square foot for high-quality, fully managed construction. This includes site prep, structural work, high-end finishes, and all municipal fees. We provide a detailed, fixed-price quote after the initial design phase to ensure total budget transparency.
A standard 500-800 square foot addition typically takes between 4 to 6 months from the day we break ground. The timeline depends on the complexity of the structural connections and the specific finishes selected. We provide a detailed project schedule at the start and utilize a dedicated site supervisor to ensure we stay on track, rain or shine.
Many Mississauga homeowners choose to stay in their homes during a ground-floor addition, as we can seal off the construction zone from the living area to minimize dust and noise. However, for a full second-story addition where the roof is removed, we usually recommend vacating for 2-3 months for safety and comfort. We work with you to plan the phases of construction to cause the least amount of disruption to your family life.
Transform your property into a high-value asset by navigating Toronto's specific legal requirements for basement apartments and garden suites. This comprehensive guide from Built by Pros Inc. breaks down the zoning, permits, and construction standards needed to build a compliant and profitable secondary dwelling.
Complete home or commercial rebuilds to give you a new structure, keeping only what can be re-purposed to save cost and the environment.
Learn MoreUpgrade existing spaces with quality craftsmanship to better meet the needs of your family.
Learn MoreWhether at your home or business, we provide zoning and permitting services as part of our planning process.
Learn MoreFull-service construction for commercial projects. Let our in house design team elevate your brand with custom space design.
Learn MoreCustom solutions to maximize the return on your property investment.
Learn MoreWe have the ADA design training in house to ensure your home is ready for your golden years , even when your are not.
Learn MoreBuilt By Pros Inc. added a 600 sq ft master suite above our garage in Mississauga last summer. The project took exactly four months as promised, and Ricardo’s team was incredibly respectful of our daily routines. They managed to find brick that matched our 1980s home perfectly. The new space is our favorite part of the house, and the energy efficiency is even better than the original rooms.
We needed a rear bump-out to expand our kitchen and create a home office. Suzanne's design sense was invaluable, as she helped us navigate the tight setbacks in Port Credit. The transition between the old kitchen and the new addition is invisible. They finished the project in 14 weeks despite a very rainy spring, and the craftsmanship on the custom shelving is top-notch.
Our commercial office addition was handled with extreme professionalism. We added 1,000 square feet of workspace, and Built By Pros coordinated all the electrical and fire safety inspections required by the City of Mississauga. The project was completed within our strict budget, and the modern glass partitions they installed have completely revitalized our team's morale.

Ricardo Lora

Suzanne Morgan

Petra Tobias

Stronger Together

Bastian Zuniga

Marco Lopez
Contact us for unmatched expertise in home renovations. With experience since 2008, we deliver top-quality materials and superior workmanship—trusted by clients and built on referrals.