Montreal company founded in 1948  |  More than 75 years of pure creativity and innovation



Turnkey solution



The addition of a floor on a home has crucial and delicate steps that require rapid execution and expertise in the area. Whether for contemporary or traditional architecture, the Construction Précellence team has the know-how and mastery needed to ensure the new structure is perfectly integrated with the existing one.

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Planning your

floor addition project

A floor addition project requires proper planning. High-level construction expertise is required to support the design team in their preparation of plans and specifications. The company also has extensive knowledge of building codes and standards as well as municipal bylaws for the purposes of obtaining a building permit.

Enhance your interior spaces

New interior spaces are carefully optimized to provide future occupants with creative, simple and efficient layout solutions. The designers will guide you through the choice of high quality durable materials while always respecting the chosen style and the budget.

Our approach

Renovation project execution

Project work is carried out by the Construction Précellence team, comprised of home addition workers and specialists. Throughout the project, you will benefit from comprehensive support and you can rest assured that deadlines will be respected.

Additional services

Construction Précellence can also provide a wide range of services to complement the floor addition project including kitchen renovation, bathroom renovation or exterior redesign. Moreover, our flexible approach gives every client the freedom to choose between full or partial implementation if they wish to carry out certain work independently.

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Floor addition prices in

Greater Montreal

  • Addition of a floor above a ground floor (+/- 1000 ft²): costs start around $300,000 and the average is around $350,000
  • Addition of a floor (+/- 1000 ft²) above a floor to make a 3rd story plus the basement level: costs start around $400,000 and the average is around $450,000
  • Addition of a floor above a garage or other room (+/- 300 ft²): Costs start at around $160,000 and the average is around $180,000. Note: In some cases, costs are between $180,000 and $200,000
  • Addition of a half-floor above a ground floor (+/- 600 ft²): Costs start around $225,000 and the average is around $250,000
  • Addition of a mezzanine above the level of a flat roof (+/- 300 ft²) with rooftop terrace: costs start around $ 400,000 and the average is around $450,000

Factors that influence project costs:

  • Architectural integration complexity
  • Modifications and reinforcements (if required) to be made to the existing structure
  • Degree of difficulty joining new structures to existing ones
  • Work needing to be done on the existing building to carry out the project
  • Worksite accessibility
  • Door and window choice and quantity
  • Material choice

Note : The budgets for adding a floor listed above include complete interior and exterior finishing work from the ceiling of the ground floor or the floor below. Below this level, only the staircase (if required) connecting the two levels is included.

Our Approach: 360º

Our team is able to handle all the dimensions of a 360º degree building project.

Construction Precellence ensures that you receive full support, a design tailored to your wishes and needs and guaranteed quality for your project.

Construction Précellence
Plan design
Construction Précellence
Interior & Exterior Design
Construction Précellence
Construction Précellence
Technical advice
Construction Précellence
A trustworthy budget study
Construction Précellence
Project planning & management
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Approvals & Permitting
Construction Précellence

*We do not offer these services on an individual basis, but only as part of a complete turnkey project.

Precellence Construction

Renovate your home

With a complete architecture, design and building service

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Why Us

Comprehensive Support

Throughout your project, from the first meeting until the work is finished, you will receive comprehensive support from both the design team and work teams. The specialists will help you make the best decisions to plan and carry out your construction or renovation project in Greater Montreal.

Tailored Design

The Construction Précellence team offers its expertise and passion to create homes that are carefully tailored to the desires and needs of their clientele. Each project undergoes a unique creative process in which all the best ideas are gathered to produce an ideal design. Whether your style is more modern or classic, your new milieu will be designed to reflect you.

Flawless Execution

Work execution and scheduling is carefully planned before the project begins to ensure the best possible experience. The teams of workers and professionals have, first and foremost, respect for the premises and the residents and make certain to carry out high quality work. Construction Précellence is the only company today that offers a work schedule guarantee. In other words, you can rest assured that deadlines will be respected.

Precellence Construction

Tell us about your

renovation project

We will be happy to answer any questions about our services, or to discuss your project with us to see how we can ensure its success!

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Our certifications

Garantie construction résidentielle
CAA Québec
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