Add square footage to your house that you need

Design and build with Toronto’s top Addition and top up renovation contractor. Contact us today to learn how

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Design your project with our
exclusive 3D rendering software

Meet in person or by video to design an addition or extension to your house using our exclusive and easy-to-use 3D design tool which will give you an accurate view of your new home design. You will sit down face to face with our design team and design your addition renovation and receive an accurate quote before you commit to the project. Our extensive team of highly skilled tradespeople will treat your home as their own. You will be provided with regular feedback and communication on the progress of each phase of your project. Our goal is to deliver the project to you on time, on budget, and exceeding your expectations. Your home will never just be a job site to us; we will treat your home with the respect it deserves.

House Addition Renovation

Considering or planning an addition? Whether it’s rebuilding your old rear shed or expanding upon your home’s current footprint, we can handle the complete design build planning process for you, and walk you through each step.

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Seamless Transition

When adding space to an existing house our team will e3nsure a seamless transition from the old to the new as if your addition was built and designed as part of the original home. This can be done by minimizing awkward transitions or routes to get to the new space, or choosing trim and moldings appropriate to the homes history and style.

Second floor / Top Up Additions

The most common addition for an urban home is a second floor or top-up addition to add square footage to your home vertically. This type of project consists of removing the original roof, building up one or two floors then restoring the roof. A great way to add space and value to your home.

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Bump Out or Side Addition

If you have the space on your property then a bump out or side addition is a cost effective choice to add space to your home. An additional advantage is you most likely do not need to move out during the renovation as our team will be adding space beside your living space. resizeimage 2 1

About D2 Build General Contractor

D2 Build is a fully staffed general contractor with vast knowledge of urban homes, garages, and carports. Our experts have the experience to let you know what can be done to maximize all spaces. We particularly specialize in older structures in the city of Toronto, and with over 30 years of experience, we have the expertise required to transform your property into a more modern, functional, livable and, ultimately, more enjoyable home for you.


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“D2 Build is the best contractor I have ever hired for a job. D2 designed and built an entire home renovation for my current home. I give D2 the highest possible recommendation and have already passed them onto many friends and family for all types of projects.”

Mike G


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“We dreaded the thought of renovating our home. We have heard so many horror stories of how badly things can go. We asked D2 to renovate our detached bungalow and they did not disappoint. They are knowledgeable, experienced, know what to prioritize, and where your money is best spent. Most of all, they have incredible integrity.”

Robert & Christina

East York

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9.7/ 10

Customer Rating