Basement Renovation

In-law suite? Home theater? Gym? Playroom for the adults or kids? Every family’s needs are different. Our Verified Contractors have created beautiful and functional spaces for homeowners.

Our Basement Projects

Get inspired! We have collected our best basement projects and ideas for you to explore.

How it works

Describe Your Project

Answer a few quick questions about your renovation and an experienced Renovation Advisors will get back to you.

Get Connected With Verified Contractors

Our Perfect Match tool will find you up to three contractors verified through our exclusive 53-point Verification Process.

Choose Your Best Contractor

Review competing bids and select the best contractor to get started, knowing we are there for you throughout your project.

Marilena RenoAssistance

What Determines the Cost of a Basement Renovation?

Many factors affect the cost of a basement reno, such as

  • The size of your space
  • The materials you choose
  • The layout you require

You can find yourself paying anywhere between $30,000 for low-budget projects and $90,000+ for high-end basements

Why people trust us

the average contractor rating by our clients
weeks to complete a typical basement renovation
Verified Contractors
competing for your project

Your Personal Assistant

A dedicated Renovation Advisor is assigned to your basement project. Your Advisor will be there to schedule appointments, help you understand quotes, provide you with a Verification Report for each contractor, and support you until your renovation is complete.

Renovation Advisor Monika-Csukassy

“I believe the basement is the most important floor in the house. It can be functional and fun. Let me show you how.”


Renovation Advisor


Benefit from our no-cost guarantee

The RenoAssistance Guarantee is an additional warranty offered at no charge for any customer undertaking their renovation project with us.*

* Conditions apply. Only available to residents of Quebec at this time.


happy clients trusted us with their projects

No fees. No obligation.

Best Basement Contractors


We want your basement renovation to run smoothly, which is why we only work with highly qualified professionals.

At RenoAssistance, all of our contractors are thoroughly vetted through our exclusive 53-point Verification Process.

Our goal is to provide you with a successful renovation from start to finish. We will have up to three contractors bid on your project to ensure you are getting the best value. We will also provide you with a Verification Report for each contractor, so you can relax knowing your project is in good hands.

What a basement contractor can assist you with

  • Design
  • Demolition
  • Rough-ins: plumbing and electrical
  • Closing up: gypsum and ceramic
  • Installing the vanity, cupboards, and other furnishings
  • Finishing touches
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how to choose your contractor guide

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15 questions you need answered before choosing a renovation contractor

What you will find in this guide:

  • Questions to ask yourself before getting in touch with a contractor
  • 15 questions to ask before hiring a contractor
  • To-do checklist
  • Advices and cautions

Frequently asked questions

Does a closed room in the basement need to have a window? If so, what should the dimensions be?

It is now mandatory to have a window large enough to serve as an emergency exit in any closed room in the basement. The minimum dimensions required are 52 x 30 inches.

Do I need a subfloor in my basement?

If your floor (concrete slab) is level, you may not need to add a subfloor, but keep in mind that your floor will always be cold. The main purpose of a subfloor is to ensure that your floor is level and to make it warmer.

How do I go about making a separate entrance for a basement?

This calls for plans and an engineer. You’ll also need to check with the city to find out if it’s permitted and specify the reason for wanting an additional entry. Then you’ll have to dig, create formwork, pour the concrete, and make the new opening in the existing foundation.


“We have vetted thousands of contractors, so we can connect you with the best and most trustworthy.”


Renovation Advisor