Create more space with a home addition in Mississauga from Ace Build Contracting. We build second storeys, rear extensions, kitchen expansions, sunrooms, and garden suites. Founded in 2018, we bring a 2-year workmanship warranty, financing up to $100,000, and $5 million in liability coverage.
350+
5-Star Reviews
500+
Projects Completed
8+ Years
Building Excellence
100%
Project Compliance
Home Additions in Mississauga
Ace Build Contracting plans and builds home additions that expand your living space, improve your home’s layout, and support how your family uses your property now and in the future.
Second Storey Additions
Add a full upper level for bedrooms, bathrooms, office space, or a larger primary suite. We coordinate structural planning, design, permits, framing, exterior work, interiors, and finishing.
Rear Extensions
Extend your home into the backyard to create a larger main floor, open kitchen, dining area, family room, or connected indoor-outdoor living space.
Bump Out Addition
We design, permit, and build a targeted expansion of your bathroom, kitchen, entryway, bedroom, or living area without a full-scale addition.
Kitchen Extension
Create a larger kitchen with better storage, natural light, island space, dining flow, and a more functional appliance layout. We manage structural changes, trades, finishes, and inspections.
Sunroom Addition
We design, permit, and build bright sunroom additions that give you a comfortable space to relax, entertain, enjoy more natural light, and feel more connected to your backyard.
Garden Suites
We build separate backyard living spaces for family, guests, rental income, or future flexibility, while handling the planning, design, permits, and construction management on your behalf.
Flexible Financing Options Available
Start your renovation sooner with financing options that allow you to spread out costs while investing in your home’s long-term value.
Quick Approvals
Flexible Payment Plans
Financing Tailored to Your Project
Be Inspired by Our Home Additions in Mississauga
Explore our home addition projects in Mississauga for ideas and inspiration. See how we create more space for you, focusing on layouts, finishes, and everyday comfort.
What Our Clients Say
The team was professional, respectful of our home, and kept the site clean and safe. Communication was excellent—questions were answered the same day, and every change order was priced clearly before work proceeded. The craftsmanship really shows in the framing, drywall, millwork, and finishes, and the new layout from the addition flows perfectly with the original house.
We finished on schedule and very close to the agreed budget. If you’re considering a home addition or major renovation in the Burlington and the GTA, I highly recommend Ace Build Contracting. They’re reliable, transparent, and truly build with precision—the kind of contractor you can trust when you don’t have time to micromanage. Our house looks incredible and functions even better.
They were super professional, kept the place clean, and communicated well throughout the project. The design came out beautiful and modern, and the quality of their work really stands out. Everything feels solid, clean, and high-end.
If you want a basement done properly (and legally), Ace Build is the team to call. Highly recommend!
The Ace Build Contracting Difference
How Much Do Home Additions Cost in Mississauga?
The cost of a home addition in Mississauga starts at $300 per square foot. The overall cost depends on the addition’s size, structure, materials, finishes, access, servicing, and property conditions.
We review your property and goals to provide a detailed project estimate.
Schedule Your Discovery Call
Start planning the space your home is missing. Book your discovery call with Ace Build Contracting to explore your home addition idea, review your property, and map out the next steps.
Building Home Additions Near Mississauga
Ace Build Contracting provides home additions in Mississauga and nearby GTA communities, including Etobicoke, Oakville, Brampton, Milton, Burlington, Toronto, and the surrounding areas.