Home Additions Designed Around Your Needs in the GTA
We specialize in custom home additions and bring your lifestyle, goals, and ideas to life. As trusted home addition contractors in the GTA, we work closely with you and connect you with our skilled team, including designers, architects, and structural engineers, to increase your property’s value and turn your vision into reality.
Whether you’re looking for extra bedrooms, a sunroom addition, a home office, or more storage space, our team provides complete home addition services. From second-floor additions and kitchen expansions to room additions, bathroom renovations, and main floor extensions, every project is a custom design tailored to your needs
Complete Home Addition Services: From Concept to Completion
As professional house addition contractors, we manage the entire process, from design and planning to permits and construction, keeping your project on schedule and within budget.
We provide transparent cost estimates for all aspects of your project, whether it’s adding a bathroom, building a second-story addition, or expanding your living space. Most of our projects are detailed in a clear written contract, so there are no surprises along the way.
Contact us today and get a free estimate, ballpark, plus our checklist for free.
Design & Planning for Your Custom Home Addition
Design and planning is the first step in your home addition project. Our experienced home addition contractors meet with you to understand your needs and vision—whether it’s a sunroom addition, a room addition, or a second-story extension.
We assess your property, including zoning and soil conditions, to prevent any surprises later. We also provide rough estimates for your home addition and space expansion to help make budgeting easier.
Our architects and engineers create detailed plans, and our project manager guides you through material selection and design style. We also set a preliminary timeline(usually between 4 and 12 months)and identify all necessary permits to ensure your project runs smoothly from day one.
Permits and Contracting for a Smooth Home Addition Project
Our project manager and home addition contractors handle all permit applications and zoning approvals, which typically take 4 to 8 weeks. If permits require adjustments or zoning changes, we assist with requests to the local Committee of Adjustment.
A clear contract outlines the project scope and costs, including contingencies for unexpected expenses and scheduling changes. This is very important to us, and we also maintain a list of changes. Communication is key, so we keep you updated throughout every stage of the project.
We coordinate with licensed subcontractors and ensure that all insurance and warranties are in place. Whether you are searching for “home addition contractors near me” or planning to add a bathroom or another room, we manage these legal and contracting details to provide you with a hassle-free experience.
Construction and Completion of Your Custom Home Addition
The construction phase begins with site preparation and foundation work, which usually takes one to two weeks. Next, framing is done to build the main structure of your project—whether it’s a room addition or a second-story extension.
After that, electrical, plumbing, HVAC, insulation, and drywall work is completed to meet all building standards. We then focus on finishing details such as flooring, painting, and cabinetry, while minimizing dust and noise for your comfort. Throughout the process, regular inspections ensure quality, and all work is documented in a legal contract.
At the end of the project, a final walkthrough is conducted to address any concerns, and we provide post-construction support with warranties. From estimating the cost of your home addition to the final build, we make your home addition journey smooth and satisfying.
Real Costs of Home Additions in Toronto
A home addition in Toronto can be a wise investment و but what does it cost in 2025?
Average Cost per Square Foot:
Room Addition (bedroom/office): $300–$400/sq ft
Kitchen Extension: $60,000–$120,000
Bathroom Addition: $35,000–$60,000
Sunroom Addition: $250–$400/sq ft
Second Story Addition: $450–$600/sq ft
Main Floor Extension: $400–$500/sq ft
Adding a second story usually costs the most, due to structural upgrades and city code requirements.
Extra Costs to Keep in Mind:
Permits & Zoning Fees: $2,000–$6,000
Committee of Adjustment (if required): $10,000–$15,000
Foundation Work: $20,000–$50,000+
Plumbing, HVAC & Electrical: $10,000–$30,000
Plan for a 10–20% contingency to cover hidden issues, material price hikes, or weather delays.
Choose a contractor who handles permits, no hidden price, and delivers quality from day one.
Real Numbers Behind Home Addition Costs in the GTA
If you’re planning a room addition, sunroom, or adding a second floor, knowing the numbers helps avoid surprises.
Here are some real costs homeowners in Toronto face:
Room Addition: $300–$400/sq ft
Add a Bathroom: $35,000–$60,000
Add a Second Floor: $450–$600/sq ft
Sunroom Addition: $250–$400/sq ft
Kitchen Bump-Out: $60,000–$120,000
In addition to square footage, factor in:
Permit and Zoning Approvals: $2,000–$6,000
Zoning Variance (if needed): $10,000–$15,000
Foundation Upgrades: $20,000–$50,000
Electrical, Plumbing, HVAC: $10,000–$30,000
High-quality finishes like hardwood, custom tile, or stone countertops can raise your budget by 30–40%. Always budget a little extra for unexpected site issues or code updates.
Hire pros specializing in house addition projects in Toronto. They’ll manage permits, offer fixed pricing, and help you stay on track, no surprises and stress .
At Renotec, we guide you every step of the process.
1.Doing a home addition in Toronto can feel like a big job , but with the right contractor, it doesn’t have to be stressful. From free consultation to final walkthrough, we handle it all.
2.We start by listening to your ideas, planning a real budget, and helping you save where it makes sense. Need drawings? We work with designers to match your current home’s style.
3.Getting permits in Toronto can be tricky , we handle everything, including zoning and Committee of Adjustment if needed. You’ll get a clear quote with no hidden costs.
4.Once the job starts, we manage all trades, materials, and inspections. We use licensed professionals, keep the site clean, and make sure the work is done right .
5.We stay in touch with updates and photos, answer your questions fast, and finish with a full walkthrough and warranty.
With Renotec, you get more than a contractor — you get a trusted team that treats your home like their own.
Benefits of the Home Addition
While home additions may seem like a big undertaking, the benefits far outweigh the effort involved. Expanding your living space with a well-planned addition not only boosts your home’s functionality but also adds significant value. Here are a few reasons why investing in a home addition pays off:
Increased Living Space
Home additions give you extra bedrooms, storage, or office space without losing your yard. They improve comfort and lifestyle, perfect for growing families or personal space needs.
Boosted Property Value
A smart home addition can boost your property’s value. Expanding your home improves functionality and appeal, giving you a better return if you sell in the future.
Improved Energy Efficiency
Adding energy-efficient features like insulation, modern HVAC, and energy-saving windows during your home addition can reduce utility costs and make your home more comfortable.
Customized Home Design
A home addition allows you to tailor the new space to meet your specific needs and lifestyle. Whether it’s an open loft, a dedicated office, or a spacious family room, the design can reflect your personal taste and enhance your daily living experience.
Financial Flexibility Options
You can fund your home addition with options like home equity loans, construction loans, or lines of credit, giving you flexibility to enhance your living space and property value.
Home Addition Services
Wondering, how much Home addition is going to cost? Or maybe you are looking for a quote on a basement makeover? We have nothing to hide and are always honest and upfront with our customers. Check out our pricing page or contact us to get a quote.
Why Choose Renotec for Your Home Addition in Toronto & the GTA
With Renotec, your home addition is in expert hands. We value your vision, ensure clear communication, and deliver high-quality craftsmanship for a smooth, satisfying project.You can check our online reviews on HomeStars and Google, and browse project photos to see the quality of our work. You can find updated posts on our Instagram with daily job site activities and real-time progress, including some posts for the cost of a home extension or a housing addition in Toronto.
General Questions About Home addition
1. What is a home addition?
A home addition is a construction project designed to expand your existing living space. This could involve adding a two-story addition, building additional rooms, or adding a second floor to your house to increase your home’s functionality and value.
2. Why should I consider a home addition?
A home addition can provide extra space for a growing family, improve your home’s functionality, and increase property value. It’s an ideal solution if you’re looking to stay in your current home without the need to move. Whether it’s a kitchen addition, building additional rooms, or a second floor addition, you’ll enjoy enhanced living space.
3. What types of home additions are available?
There are many types of home additions, including family rooms, bedrooms, bathrooms, sunrooms, and even garages. Whether you’re looking to add an addition to your house or build a 2nd story addition, each project can be customized to suit your specific needs.
4. Do I need a permit for a home addition?
Yes, most municipalities require permits for home additions. Our team can assist you with the permitting process, ensuring compliance with local building codes and regulations, whether you’re planning to put an addition on your house or build a room addition.
5. How long does a home addition project take?
The timeline for a home addition project depends on the scope and complexity. For example, adding a second floor to your home may take several months, while building a smaller room addition may take a few weeks. We’ll provide an estimated timeline based on the type of addition you’re considering.
6. How much does a home addition cost?
The cost of a home addition varies based on size, materials, and design choices. On average, cost of home addition Ontario can range from $150,000 to $300,000, but smaller projects like a kitchen addition may cost less. We offer detailed quotes to help you understand the investment needed.
7. Can I customize my home addition?
Yes! We offer fully customizable home additions, from addition design to finishing touches. Whether you want a family room addition, second floor expansion, or even a sunroom, we work with you to create the perfect space.
8. Will a home addition increase my property value?
Yes, a well-designed home addition can significantly increase your property’s value and curb appeal. Whether you’re adding a two-story addition or building a new room, it’s an investment that can boost your home’s market worth.
9. What are the benefits of working with a professional contractor?
A professional contractor brings expertise, local knowledge, and experience in managing home addition projects. Whether you’re looking to build a 2nd story addition or plan an addition to your home, working with a licensed contractor ensures a smooth process from start to finish, including proper permitting and compliance.
10. How do I get started with my home addition project?
Start your journey by contacting us for a consultation. Whether you’re interested in adding an addition to your house or planning a second floor addition, we’ll discuss your needs and guide you through the process.