Home Additions in Mississauga

Ace Build Contracting believes a home addition should solve today’s challenges while preparing your home for tomorrow. That’s why every project begins with a clear strategy for how the new space will improve the way your family lives, how it will connect with the existing home, and how it will continue to add value for years to come. Whether you’re expanding upward, outward, or creating independent living space, our focus is on delivering an addition that feels complete, intentional, and built with the future in mind.

As a licensed general contractor serving Mississauga and the Greater Toronto Area, we coordinate every stage of your home addition under one experienced team. From the first conversation through planning, permits, construction, and final finishes, we make the process straightforward, transparent, and centred on achieving the outcome you’ve envisioned for your home additions in Mississauga.

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Home Addition Solutions for Mississauga Homeowners

A successful home addition isn’t defined by a standard plan—it’s shaped by the home it’s being built on. As a licensed general contractor in Mississauga serving homeowners throughout the Greater Toronto Area, Ace Build Contracting creates custom additions that respond to the property’s existing architecture, available space, municipal requirements, and your long-term plans. Below are some of the addition projects we complete most often, but every design is developed specifically for the home, not selected from a catalogue.

Second Storey Additions

Ace Build Contracting designs and builds second-storey additions in Mississauga & the GTA that help homeowners maximize their existing property without sacrificing yard space. From additional bedrooms and bathrooms to home offices and primary suites, every upper-level addition is customized to suit your home’s layout and your family’s future needs.

Rear Extensions

A rear home extension gives you the opportunity to rethink how your main floor is used and create spaces that better suit your family’s lifestyle. Whether you’re expanding your kitchen, opening your living and dining areas, or adding a larger family room, every rear extension is designed to improve the flow, comfort, and functionality of your home while making the most of your existing property.

Bump Out Addition

A bump-out addition is an efficient way to make a single room more spacious without extending your entire home. Whether you’re expanding a kitchen, bathroom, bedroom, entryway, or living area, Ace Build Contracting designs custom bump-out additions in Mississauga & the GTA that improve comfort, functionality, and the way your home is used every day.

Attic Conversions

Ace Build Contracting designs and builds custom attic conversions in Mississauga that transform underused roof space into comfortable, functional living areas. Every conversion is thoughtfully planned to maximize natural light, improve your home’s layout, and create a seamless new bedroom, office, or family space that feels like part of the original home.

Basement Underpinning

As a licensed contractor, we provide professional basement underpinning in Mississauga, helping homeowners increase ceiling height and unlock the full potential of their existing basement. Every underpinning project is carefully planned to strengthen your home’s foundation while creating additional living space that’s ready for future basement renovations, legal suites, or everyday family use.

Garden Suites

A custom garden suite transforms your backyard into valuable living space that adapts to your needs. Whether you’re planning a guest suite, space for family, rental income, or future flexibility, Ace Build Contracting designs and builds garden suites in Mississauga & the GTA that complement your home while maximizing your property’s potential.

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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.

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Quick Approvals

Flexible Payment Plans

Financing Tailored to Your Project

Browse Our Home Additions Projects in Mississauga & the GTA

Browse our in-progress home addition projects to see how we’ve helped homeowners across Mississauga & the Greater Toronto Area expand and improve their homes. From second-storey additions to rear extensions, every project is designed to complement the existing home while meeting the family’s unique needs.

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What Our Clients Say

Kiran Bala

2 weeks ago

We recently hired Ace Build Contracting for our kitchen renovation, and we're really happy with how everything turned out. From the beginning, the team listened to what we wanted, answered all of our questions, and gave us honest advice that helped us make the right decisions. The whole kitchen renovation process was well organized, and they kept us updated every step of the way. The crew was professional, respectful, and paid attention to the small details that made a big difference.

Our new kitchen looks amazing, and it's much more functional for our family. Highly recommend Ace Build Contracting.

Megi Kordalli

3 weeks ago

We hired Ace Build Contracting for our home addition and had a great experience from start to finish. The team was professional, always on time, and kept everything within the budget we agreed on. Communication was excellent, and the whole process was smooth and stress-free. The quality of the work exceeded our expectations, and we’re very happy with the final result. I would definitely recommend Ace Build Contracting to anyone looking for a reliable contractor.

Omoruyi Charles

3 months ago

We are so in love with our new theatre room and washrooms, Ace Build Contracting did a fantastic job! Thanks team!

SUMIT RAJPUT

3 months ago

Had a really good experience with Ace Build Contracting for our legal basement renovation in Toronto. They made the whole process easy to understand, kept communication consistent, and delivered a clean, quality finish. Overall, we’re really happy with how everything came together. Highly Recommended to all!

Saroj Rajput

4 months ago

Ace Build Contracting did an amazing job on our Mississauga legal basement. Smooth process, excellent communication, and top-quality results. Highly recommend them for legal basement renovations in Mississauga!

valbona marku

6 months ago

We hired Ace Build Contracting for a full kitchen renovation in Etobicoke, and the transformation is incredible. The team was professional, on schedule, and kept the site clean every day. Communication was clear, with helpful updates and transparent pricing for any changes. The new layout, cabinetry, lighting, and quartz counters look elegant and function perfectly. We absolutely love our new kitchen and highly recommend Ace Build Contracting for anyone planning a renovation. Simple, smooth, and beautifully done.

Selena Miller

6 months ago

Ace Build Contracting handled our full home extension and complete home transformation in Burlington/GTA, and they were outstanding from start to finish. I run a busy beauty business and my husband’s work hours are unpredictable—we didn’t have time to manage a renovation. Ace Build made it stress-free: they organized design, permits, inspections, and sent clear weekly updates with photos, schedule notes, and next steps so we always knew what was happening.

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.

Fabito Escobar

6 months ago

Ace Build Contracting completed our home addition and exceeded expectations from start to finish. They walked us through design options, managed permits/inspections, and kept us updated every week. The crew was professional, respectful of our home, and the site was kept clean and safe. Craftsmanship shows in the details—framing, insulation, drywall, and finishes all feel solid and well planned. We stayed on schedule and close to the agreed budget, with any change orders priced clearly. If you love your neighborhood but need more space, Ace Build Contracting is the company to call. Strong communication, quality work, and true accountability—highly recommend for additions and major renovations in Mississauga and GTA.

abbi manhas

7 months ago

Ace Build did an amazing job finishing our basement into a completely legal basement apartment, and the whole experience was smooth from start to finish.

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!

Jason Matta

2 years ago

The ACE team was “the” most professional team I’ve ever worked with. They did a renovation to my children’s bedroom turning one room into two. They did an excellent job, finished ahead of schedule/on budget without any surprises. I’d plan to use them again for a kitchen renovation and recommend them highly. So impressed.

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The Ace Build Contracting Difference

Financing Available – Access flexible financing for larger renovation projects, with options available up to $100,000.
Design-Build Firm – Work with one team from early feasibility planning through the final build, so no details get lost between design, permits, and work.
Licensed & Insured – Your project is handled by a licensed team with WSIB coverage and $5 million liability protection.
Detailed Cost Breakdowns – You receive a clear scope and detailed cost breakdown before construction begins, helping you budget your full home addition in Mississauga.
Dedicated Project Management – Your dedicated project manager keeps your home addition organized, coordinating trades, schedules, site updates, inspections, and next steps.
Permit Application – We prepare and submit permit documents, coordinate engineering drawings, respond to city comments, and push your addition through approvals.
Workmanship Warranty – Your completed home addition in Mississauga & the Greater Toronto Area is backed by a workmanship warranty for added post-project peace of mind.

How Much Do Home Additions Cost in Mississauga?

Home additions in Mississauga typically cost between $250 and $700+ per square foot, depending on the type of addition, structural requirements, materials, and level of finishes.

Most home addition projects start around $250,000 and can exceed $700,000, particularly for larger or more complex second-storey additions. Every project is unique, so the final investment depends on your property’s existing condition and overall scope of work.

We review your property and goals to provide a detailed project estimate.

Schedule Your Discovery Call Today

Your ideal home may be closer than you think. Speak with Ace Build Contracting about your home addition project in Mississauga or the Greater Toronto Area, and we’ll help you explore practical solutions that complement your property, your lifestyle, and your long-term plans.

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Building Home Additions Near Mississauga

Whether your home is in Applewood, Churchill Meadows, Clarkson, Cooksville, Erin Mills, Lakeview, Lorne Park, Meadowvale, Mineola, Port Credit, Sheridan, or Streetsville, Ace Build Contracting provides custom home addition services in Mississauga designed around your property and your family’s needs.

We also proudly serve homeowners in Etobicoke, Oakville, Brampton, Burlington, Milton, Toronto, and neighbouring communities throughout the Greater Toronto Area.

If your neighbourhood isn’t listed, contact our team to confirm service availability in your area.

FAQ

Every home addition project starts with questions about what’s possible for your property, how much it may cost, and what the process involves. To help you plan with confidence, we’ve answered some of the questions homeowners ask us most often about building a home addition in Mississauga.

Yes. Zoning regulations can affect the size, height, setbacks, and placement of a home addition in Mississauga. Before construction begins, it’s important to confirm what your property can accommodate and ensure the proposed addition complies with local municipal requirements.

Yes. Most home additions require a building permit and must comply with the Ontario Building Code, local zoning by-laws, and municipal approval requirements before construction can begin.

Most home additions in Mississauga cost $250–$700+ per square foot, with total project costs commonly starting around $250,000 and exceeding $700,000 for larger custom additions.

For many homeowners, yes. A home addition allows you to gain the extra space you need while staying in the home and neighbourhood you already enjoy. It can also help you avoid many of the costs associated with moving, such as real estate fees, land transfer tax, and relocation expenses, while creating a home that’s better suited to your family’s long-term needs.

Not always. The feasibility of a home addition depends on factors such as your lot size, existing home, zoning regulations, and structural conditions. A professional assessment can help determine which type of addition is suitable for your property and whether any limitations need to be considered before planning begins.

The right home addition depends on your property’s layout, your family’s needs, your budget, and local zoning requirements. Whether you’re considering a rear extension, second-storey addition, kitchen expansion, or garden suite, a professional consultation can help determine the most suitable option for your home.

Start by identifying how you want the new space to improve your home and your family’s lifestyle. Meeting with an experienced home addition contractor early in the process allows you to evaluate your property’s potential, discuss design ideas, understand local requirements, and develop a realistic budget before construction begins.

The timeline depends on the size and complexity of the project, the design, permit approvals, and site conditions. While every home addition is different, careful planning and coordination help keep construction on schedule. Your contractor can provide a project-specific timeline during the planning stage.

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Home Additions Mississauga

Home Additions in Mississauga