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Basement Waterproofing Contractors

Waterproofing Ajax properties is not uncommon to us. Ajax has low-lying areas that are flood prone due to rising lake levels and heavy rainfall. Basement waterproofing is a good investment for Ajax residents. Whether you choose exterior basement waterproofing or interior basement waterproofing, the benefits are:

  • Protecting your home from future floods and their associated costs
  • Preserving the integrity of your foundation, chronic water penetration erodes your foundation
  • Avoiding wet basement and mold issues, especially if your basement is finished and mold can grow behind dry wall etc.
  • Adding to the value of your property. Research shows that investing in basement waterproofing will increase your property’s value.
Basement waterproofing ajax

Why Choose Us

Interhome Waterproofing has been a leading waterproofing contractors company since 2004. There are several basement waterproofing companies in Ajax and we have been the choice of hundreds of homeowners with their waterproofing needs. We are family owned and run, take pride in our work, we are licensed and carry proper liability insurance. Our basement waterproofing solutions employ the lasted and most advanced materials making sure your investment lasts for decades. Our craftsmen have decades of experience. We offer competitive pricing and a 25 year guarantee.

Throughout the years we have encountered unique and complex waterproofing projects. We have amassed the knowledge and expertise to safely tackle complex basement waterproofing scenarios. The quality and type of soil your foundation is sitting on, any structural compromise your property currently has, the condition of your foundation, these are all factors we take into serious consideration.

Our construction expertise expands to interior and exterior basement waterproofing, basement underpinning, sump pump and weeping tile installations.

Basement Waterproofing for New & Old Houses

Waterproofing is not just a good investment for old houses. Most new housing constructions lack a basement waterproofing solution. What is commonly used at new constructions is a damp-proof cloth layer which offers no protection to water seepage and erosion. A high-quality basement waterproofing membrane, including a proper drainage system will offer complete protection for years to come.

When it comes to old homes, foundation waterproofing was not available at the time of construction.  Water can pool under the crawlspace or a lowered basement and breed mold and musky odors. Mold feeds of construction materials like dry wall and moldings, but besides the damage it can cause it is also a health concern. The foundation walls and even the concrete floor can be damaged by water finding its way in from cracks and crevices.

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We are your trusted basement waterproofing Ajax contractors! We offer a free consultation and complete foundation and basement assessment. We strive to educate you on the waterproofing solutions that are right for your property.

Call Us Today: 416-836-5253

Book your free on-site inspection and consultation with one of our basement waterproofing experts.


Laura Matheson

Home Owner, Markham

"I just wanted to thank you again for the excellent work your guys did and your very high level of service. You went above and beyond in a number of areas and that is unfortunately pretty rare in the construction industry today. Thanks again.

John O’Connor

Home Owner, Toronto

“Interhome Waterproofing is at the top of their field. We had a wet basement issue and had a few contractors come out for an assessment. Very quickly we were impressed by Ali, one of the owners of IW. He was thorough, patient to explain to us our options, even pointed out that our sump pump was not working properly. We are very pleased with their work. They were professional, courteous and the project manage was always on top of things. Highly recommended.”

Leo Boico

Nabeel Construction, Toronto

“As general contractors we rely on our working relationship with our sub-contractors to produce quality work and uphold our good name. We have been working with Interhome Waterproofing since 2008. They have tackled several complex projects and have always delivered on time and above expectations. We value having them as partners and look forward working with them on our next project.”

Gus Leonidis

Home Owner, Toronto

"Interhome Waterproofing came highly recommended by our building engineer and we are so glad we took his recommendation. We decided it was time to add a full height basement to our old Toronto house. The underpinning process scared us, but Ali put our fears to rest by thoroughly explaining the safeguards and precautions that their process included. The project went without a hitch and we are very happy with the result and their service."