Home Additions in Toronto

Trusted Toronto Home Addition Contractors

Astaneh Construction is a leading home addition contractor in Toronto and the GTA. We pride ourselves on making every client’s life better, starting at home. You only get the best quality and service with our home additions. If you need to increase your living space with a second-storey, kitchen expansion, or basement rec room addition, we are the team for you.

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Home Addition Services for Your Growing Family

Whether you’re looking to add a second story in Toronto to your bungalow, bedroom, loft, bathroom, or in-law suite, you can count on Astaneh Construction to navigate through the by-laws and develop concepts for you to expand either up or outwards. Our team collaborates closely with each client, ensuring a functional design for growing families.

Here are the home addition services we specialize in:

Second-Floor Addition: Adding a new story includes a full gut and new roof installation. We install new trusses and new roofing materials, avoiding any gaps or leaks that typically occurs when old and new materials are mixed.
Bump-Out Addition: Bump-outs in Toronto add square footage to an existing room and range from 2 to 15 feet. Bump-outs can create mud rooms, walk-in closets, bathroom expansions, and reading nooks.
Garage Addition: Attached garages are both convenient and useful. You can park your car inside, increase your storage, or use the space for woodworking and other hobbies.
Sunroom Addition: Combine the outdoors with the comfort of indoor living with a sunroom addition. Choose between three-season and four-season sunrooms, with the option to include heating and cooling amenities.
Dormer Addition: We convert attics from a storage area to a livable space. Dormers enhance the natural lighting and also provide more floor space for guest bedrooms, playrooms, or reading rooms.
Rear Extension: We recommend this for large families as it offers more square footage than a typical room addition. Rear extensions expand the main floor, basement, and second floor without altering your home’s layout or flow.
Kitchen Addition: We design your kitchen around the extra space you need, creating open kitchen concepts. Get additional space for an island, entertaining guests, and more. Let's improve the your kitchen design, flow and decrease clutter.
Bathroom Addition: We improve the comfort, convenience, and functionality of your daily living. Accommodate your needs with an accessible bathroom, three-piece bathroom additions or indulge in luxury with an ensuite addition.

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Professional Home Addition Builders in Toronto

Astaneh Construction prioritizes customer satisfaction and experience for every home addition we take on in Toronto. Our team will manage every aspect of the project from permit acquisition, preliminary drawings to post-construction cleanup. We have a highly skilled project management and team of home addition contractors that ensures your addition aligns with your vison and budget. You can count on the following from Astaneh Construction:

Our Featured Home Additions Projects

Discover how Astaneh Construction enhances homes with expertly designed additions in Toronto, combining precision, creativity, and exceptional craftsmanship. Explore our project photos up close—every detail showcases the quality, skill, and dedication that make our home additions truly remarkable.

Benefits Of A Home Addition

Home additions are a smart way to gain extra room, boost property value in Toronto, and adapt your house to changing needs. In this video, we’ll break down the real benefits of home additions and why building out or up can be a solid move for growing families and long-term plans.

What our clients say about our services

Jennifer Lee

I have used Astaneh Construction for two home renovation projects (kitchen remodel and bathroom renovation). I found the team to be professional, responsive and collaborative. They were very good at translating my vision into reality, including creative solutions to practical challenges. Of particular importance, they did not hesitate to send to back contractors to address issues to ensure everything was done right and to our satisfaction. Finally, projects were completed within the time and budget provided in the project quote.

Cameron Wong

Astounding work. Hamed, Rana, and Ali are all amazing to work with. They took our renovation dreams and turned them into a reality. I always felt comfortable asking Hamed for his expert advice. I appreciate the care and attention they put into our home. Go with Astaneh, you won’t be disappointed! I will definitely call Hamed again for the next big project

shagufta meghji

We recently completed a full gut renovation and had an excellent experience working with Astaneh Construction. His team was wonderful to work with every step of the way. Communication was always clear and transparent and whenever we hit a roadblock they quickly came up with thoughtful solutions. We had heard so many horror stories about how stressful renovations can be but we didn’t feel that stress at all. Everything went so smoothly. The best part is that Hamed is genuinely good people and surrounds himself with good people. At every stage we felt confident that our home was in safe hands. In the end, they delivered beautifully and on time! We’re truly grateful for the experience and would highly recommend working with them.

sogol bagheri

We had the pleasure of working with Astaneh Construction for our kitchen renovation, and we couldn’t be happier with the results! From start to finish, the entire process was smooth, professional, and stress-free. Their team was incredibly organized and always on time. The project was completed within the promised timeline, which we truly appreciated. They paid close attention to every detail and made sure everything was done with precision and care. You can truly tell they take pride in their work. What stood out the most was how caring and responsive they were throughout the renovation. They listened carefully to our needs, offered helpful suggestions, and kept us informed every step of the way. Any questions or small adjustments were handled quickly and professionally. The quality of workmanship is outstanding — our kitchen looks beautiful, modern, and exactly how we envisioned it. We’ve received so many compliments already! If you’re looking for a reliable, honest, and skilled construction company, I highly recommend Astaneh Construction. Thank you for transforming our kitchen into such a stunning space! 👏✨

Hossein Andarzipour

As a professional photographer and filmmaker who has worked with many people in the construction industry, I can confidently say that Hamed Astaneh is one of the most professional and organized contractors I’ve worked with. The quality of his work is consistently high, and the clients I’ve seen working with him have been extremely satisfied. He delivers clean, detailed results that truly match the level and expectations of his clients. Hamed never cuts corners and typically uses high-quality materials in his renovation projects. His scheduling is well-planned, and projects are completed on time as promised. From our side, as a media team working with him, he has always been very professional and reliable, including being prompt and transparent with payments. Based on my experience in this city, it’s rare to find someone in the construction field who combines this level of organization, commitment, and quality so consistently.

pilhom qr

I had a great experience working with Astanceh Construction . Hamed’s team was very organized and always on time, which made the entire process smooth and stress-free. What I appreciated most was their honesty with pricing. The amount they quoted at the beginning was exactly what we paid at the end. Even though I initially worried that unexpected issues might increase the cost, there were no additional charges at all. Their work was clean, well-managed, and professional, and I’m very happy with the final result. I would confidently recommend them to anyone looking for a reliable contractor.

Brian Koo

We decided to do a whole home renovation with Astaneh Construction and it has been, without a doubt, the best contracting experience we’ve ever had. After dealing with several other contractors during our search - including some who were disorganized, unresponsive, and one who outright ghosted us - we were honestly anxious about starting this project. But from the moment we connected with Astaneh, everything changed. Their team immediately set a new standard for what professionalism should look like. The turnaround time on our project was remarkably quick, and the level of communication throughout was something we truly appreciated. We were kept informed at every stage, with constant updates, check-ins, and clear explanations of what was happening and why. Their transparency made all the difference - no surprises, no hidden costs, just honesty and straightforward guidance. One of the things that impressed us most was how accommodating they were. Any request we had, any concern that came up, they handled it with patience and a genuine willingness to help. They worked around our schedules, respected our home, and made the entire process as smooth as possible. It felt like we were working with people who actually cared, not just a company trying to get the job done. Rana, our project manager, deserves special recognition. She was the heart of this project. From start to finish, she was incredibly patient, kind, and attentive. She never made us feel rushed or bothersome, even when we asked a million questions. Her reassurance throughout the project gave us so much peace of mind, we always felt like we were in good hands. Rana is one of those rare people who combines deep expertise with genuine compassion, and we honestly can’t say enough good things about her. Astaneh Construction not only delivered beautiful results, but they gave us confidence and comfort throughout the entire journey. Their honesty, organization, and commitment to customer satisfaction set them apart from anyone else we consulted. If you’re looking for a trustworthy, transparent, and truly dedicated team, Astaneh Construction is the one. We were so impressed with their professionalism and care that we wouldn’t hesitate to trust them with any future projects. Their reliability, clear communication, and genuine commitment to doing things right gave us complete peace of mind. We’ll be recommending Astaneh Construction to our friends and family - it’s rare to find a team this dedicated, transparent, and truly caring. Thank you, Rana, Hamed & all the amazing teams involved :)

Kiarash Nili

Astaneh Construction did a great, detailed job. Hamed was professional, honest, and really took the time to understand what I needed. He helped me find the right solutions and made the whole process easy. Great value, highly recommend.

Anita Noorduyn

Hamed and his team at Astaneh are truly exceptional. They are professional, reliable, and complete every project on time. They take the time to listen and fully understand your needs, and the results always exceed expectations. If you’re looking for a trustworthy team that supports you every step of the way, I highly recommend Astaneh.

Elnaz Golestani

I had an excellent experience with Astaneh Construction. Hamed was professional, honest, and very detail-oriented throughout the entire project. The workmanship was high quality, the communication was clear, and everything was completed on time. I highly recommend Astaneh Construction for anyone looking for reliable and trustworthy service.

Your Trusted Home Addition Partner

Our team has extensive experience designing and constructing all types of house additions. We’re a customer-first company, committed to fulfilling client requests without compromises or cutting corners. For a free consultation and cost estimate on your Toronto home addition, contact Astaneh Construction.

FAQs about Home Additions

How much does a home addition cost in Toronto?

A home addition in Toronto typically starts at $350,000 for a second story and averages between $250 to $500 per square foot, depending on the project’s size and scope.

What is the home addition process like in Toronto from start to finish?

The home addition process is simple. First, we will have a consultation with you to discuss all of your needs for a home addition, including the specific type of addition you want to get. Then, we will create the design, ensuring that it meets your approval. Next, we will obtain all necessary permits, after which construction will begin. Once construction is completed, we will do a full inspection to make sure that everything meets our standards and your expectations.

Do I need a permit for a second story addition in Toronto?

Yes, you will need permits for a second story addition in Toronto, specifically a building, plumbing, and HVAC permit, but rest assured that we will handle all things related to the application and acquiring of necessary permits.

What types of home additions are best for Toronto houses?

While there aren’t specific additions that are necessarily best for Toronto houses, there are types of home additions that are the most popular and add the most value. For example, rear extensions and second story additions are quite popular among Toronto homeowners and can greatly increase property value.

How long does a typical home addition project take in Toronto?

The length of time it takes to complete a home addition project depends entirely on the size and scope of the project. The average timeline is anywhere between 4 to 6 months, but it could take a shorter period of time, like 3 months, or a longer period of time, such as up to 10 months.

What’s the difference between home addition contractors and general contractors in Toronto?

The main difference between home addition contractors and general contractors in Toronto is that a home addition contractor specializes in home additions, whereas a general contractor does not solely work on home additions, but on a broad range of different renovation projects.

How do I choose the right home addition contractor in Toronto?

To choose the right Toronto home addition contractor for you, it is best to talk to a variety of different contractors. Get quotes, but also remember that it is not just about who can give you the most affordable cost; it is about reliability and trust. Check references, read reviews, and look at portfolios to see if a specific contractor is someone you can see yourself working with and trust to properly construct your desired home addition.

Can I live in my house during a home addition in Toronto?

It depends on the type of a home addition. Generally speaking, it is not recommended to stay in your house while a home addition is under construction. However, in some cases, like with a second story addition, it is possible to continue living in your house during construction.

Is a second story addition worth it in the Toronto real estate market?

Yes! A second story addition is definitely worth it as this type of addition adds a great deal of value to your property, ultimately attracting future homebuyers when you decide it is time to sell.

What are the zoning and setback rules for home additions in Toronto?

Zoning and setback rules, which take into account the minimum and maximum building height, front yard, and side yard setbacks, depend on your specific neighbourhood in Toronto. To determine the regulations associated with your property, you can explore the interactive zoning map on the City of Toronto’s website.

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