Enlargement and modification | Davana Construction

Davana Construction

A building experience tailored to your needs

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Enlargement and modification

the Davana advantage

Your construction project, clear and without unpleasant surprises.

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Controlled budget

Clear invoice every week, no surprises.

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Weekly quality review

Validate progress every Friday, and stay calm.

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Complete in-house team

A minimum of subcontracting, meeting deadlines and quality expectations.

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Freedom of materials

Choose according to your budget and personal style.

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Single point of contact

One person, all your answers quickly.

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Protecting your living space

So that you can continue to live where you are.

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Garage construction

Your car space, practical and accessible for your needs.

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Rear extension

Expand your home to the rear or sides.

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Transform your space

Turn existing attic space or garages into useful rooms.

Any questions?

If you can’t find yours, give us a call!

How much does an extension in Montreal cost?

An addition generally costs between $250 and $350 per sq. ft., depending on the materials used, the scope of the work and the complexity of the structure. We provide a clear estimate within 48 hours of our free consultation visit, with no hidden costs.

Do I have to leave my home during the work?

No, we fit the building site with effective dust and noise protection. Thanks to daily cleaning, you can live as normal in your home, even when adding a storey or a major rear extension.

Is Davana arranging the necessary permits?

Yes, we take care of all municipal procedures related to your extension or modification: building permits, inspections and regulatory compliance. That way, you avoid administrative stress and enjoy peace of mind during your project.

Can the project be adjusted during construction?

Of course. With our “time and materials” model, every change you make (size, materials, finish) is quickly taken into account. We adjust the next invoice without financial penalties or significant site delays.

How long does an extension take?

Depending on size, a storey addition takes around 3 to 4 months, a rear extension or garage between 6 and 8 weeks. Each project is meticulously planned with you, and together we validate the weekly progress to guarantee the promised deadlines.

the davana expert

Don't hesitate to contact our experts for your projects.

David Houde

Operations Manager

Efficient and transparent renovation,
It starts here

Your next step is to contact us

1. Personalized listening from the first call

David himself takes the time to listen to you and collect your wish list, to make sure he understands your priorities.

2. Clear and constructive on-site consultation

During the consultation visit, he reviews your wishes, explores your budget and immediately identifies any technical constraints.

3. Tailor-made proposals and time for reflection

You’ll get a customized quote, and the time you need to study the offer before any commitment is made.

4. Reassuring site start-up

Once approved, David plans the site, briefs the team and makes sure your home is protected (blue carpets, full briefing).