Lagois Design Build Renovate

Herb Lagois 613-489-2345


5921 Prince of Wales Drive, Ottawa ON K0A 2T0


About Lagois Design Build Renovate

Lagois is a full-service design-build company. From starter home couples and young families to empty nesters and seniors choosing to live in place, Lagois helps clients transform their homes into spaces for LIVING. Each of their clients is different and they respond to their needs case-by-case. Some have homes that are too small or too dark. Others have homes that are outdated or not to code. Some have poor storage options or lack of outdoor space. Others simply want a change, a refresh, or reinvention of the place they call home. And yes, some need a new home altogether.

Regardless of what each client needs, they know they can count on Lagois to take care of all aspects of the project including architectural design, permit plans and documentation, sourcing all materials, and managing the construction process from start to finish.

Check out their blog for more info:


Together, we create a conceptual design plan to address your wants and needs. This includes interior and exterior aesthetics, spacial planning, and indoor/outdoor integration. With our depth of design knowledge and expertise, our team will help you make informed decisions and anticipate potential challenges before they become issues. In addition, we will:

  • Examine existing conditions
  • Conduct a needs discovery
  • Develop an overall detailed design
  • Conduct a whole-home renovation impact assessment
  • Establish project scope and specifications
  • Draft a budget assessment



With our help, this is where you select all the finishes inside and out! Finalize the selection of materials, products (such as flooring, plumbing fixtures, siding), produce construction drawings and documentation, and establish a solid construction start date/completion date and a fixed cost. At this stage, we:

  • Commit to a timeline and budget
  • Confirm design assumptions
  • Guide product selection
  • Finalize investment costs
  • Formalize construction schedule and agreement



We’ve spent several weeks planning your project, now it’s time to build it! The building phase lasts an average of 4-6 months and Lagois will oversee your project from start to finish, keeping it on-time and on-budget. We take care of all the details so you can go about your daily routine without worry. We will:

  • Secure all permits
  • Begin and oversee construction
  • Conduct regularly-scheduled meetings and reviews
  • Perform final walk-through with you
  • Produce project binder
  • Provide 5-year warranty

We had the pleasure of working with the Lagois team for a full-house renovation including an addition in 2019.

We found the team extremely knowledgeable and professional throughout the process. They were able to bring their ideas to us as well as listen to what our hopes and dreams were for the project.  They were responsive to any and all questions that we had as we were going through the process – all of their contractors were personable and professional. The job was completed to a very high-quality level and on time. We are very pleased that we chose Lagois for this work.


Lagois Design Build Renovate partner
Lagois Design Build Renovate partner
Lagois Design Build Renovate partner
Lagois Design Build Renovate partner
Lagois Design Build Renovate partner

I loved working with the team, starting with Herb, Jeff, and Sophie who worked on blueprints until we had it right and on-budget.

The Lagois 5-year guarantee provides great peace of mind too.

I underestimated how lifechanging a renovation can be. We are so incredibly happy with the home Lagois created for us.


Share this page on: