Crawl Space

A damp crawl space can damage your insulation and lead to mould. Renovate your crawl space before the problem spreads. Let one of our Renovation Advisors connect you with a Verified Contractor.

How it works

Describe Your Project

Answer a few quick questions about your crawl space 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.


What Determines the Cost of Renovating a Crawl Space?

Many factors affect the cost of a crawl space, such as

  • The size of your crawl space
  • The materials you choose
  • The extent of the current damage

You can find yourself paying anywhere between $18,000 for small projects and $30,000+ for large spaces

Why people trust us

the average contractor rating by our clients
days to complete a typical crawl space
Verified Contractors competing for your project

Your Personal Assistant

A dedicated Renovation Advisor is assigned to your crawl space 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.

Senior Renovation Advisor Audrée-Anne-Plourde smiling

“I am here to help you with your project and to refer you to the best crawl space renovators.”


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 Crawl Space Contractors


We want your 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 crawl space contractor can assist you with

  • Mould removal
  • Decontamination
  • Repairing cracks and leaks
  • Sealing floors and wallls
  • Installing a heating system
  • Installing a proper ventilation system
decomtamination contractor
how to choose your contractor guide

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Our Renovation Guide

What you will learn from the guide:

  • Important questions to ask your contractor
  • How to reduce your risk
  • How to save time and money
  • And more answers to your questions!

Frequently asked questions

What is a crawl space?

A crawl space is an alternative to a traditional basement that creates a barrier between the ground and the floor of a house to protect the latter from rising damp. The space cannot be converted and can be between 20 and 180 cm high.

Why is my crawl space wet?

Soil exposed to the open air creates water vapour that evaporates into the crawl space and eventually into your home. In addition to groundwater seepage, there’s often seepage from the outside. Water can therefore enter under the footing , between the footing and the wall, through cracks in the wall or any other unsealed area. This water evaporates upwards, while increasing the humidity of the crawl space. Take care if your beam, joists or any other part of your structure is made of wood, as contact with water and humidity can affect the integrity of your entire structure.

How do you get rid of moisture and contaminants in a crawl space?

To keep mold from spreading and impacting your health and your home, you need to act quickly to decontaminate the crawl space. Then you must repair, seal and block the infiltration points, install insulation between the house and the ground soil, and ensure sufficient air circulation by installing a high-performance dehumidifier in the crawl space.

elyse beauchamp renovation advisor

“Properly sealing your crawl space can save you hundreds of dollars every year. What are you waiting for?”


Renovation Advisor