Alterra Landscaping specializes in external basement waterproofing. Our method involves excavating around basement walls, applying a moisture barrier, and installing a specially designed dimple board to redirect water away. This exterior waterproofing approach effectively repairs and prevents basement leaks, creating a robust foundation waterproofing system that safeguards your home from water damage. Trust Alterra for expert solutions and reliable exterior waterproofing services

Our Advantages

  • 10+ experience in excavation and foundation works
  • Competitive pricing
  • Registered with WSIB
  • More than 100 happy clients 
Featured Project

Exterior Waterproofing of Basement in North York

In North York, Alterra Landscaping successfully undertook the waterproofing of a leaky basement with a comprehensive approach. The project involved excavating the area to a depth of 6 feet. To establish an effective waterproofing system, we installed the Hydro Guard rubberized membrane, an air-gap drainage membrane, and a drainage tile. This strategic combination ensures robust protection against water infiltration, creating a durable barrier to safeguard the basement from leaks and potential water damage.

Our Process

  • 1
    Consultation and Free Estimate

    Our process begins with a detailed consultation to understand your vision, requirements, and budget. We discuss your ideas and provide a detailed estimate – no strings attached!

  • 2

    Our experienced team collaborates with you to create a design that perfectly matches your home and lifestyle. If needed, permit applications are discussed and prepared.

  • 3
    Installation and Construction

    We excavate the area near your foundation and install the proper waterproofing equipment

Happy Clients of Alterra Landscaping

Alex and his team did an amazing job, I am very happy with the results. They installed new pavers on my walkway and border around the driveway, build a new flower bed and installed an armour stone retaining wall, plus new sod all around. professional, fast, clean job. They finished everything in 4 days! Highly recommend Alterra Landscaping for all your landscaping needs.
Homestars Review
Old driveway of 1200 sq ft was removed. Driveway was excavated to a depth of 18". New base material was installed and properly compacted. New interlock pavers were expertly installed (flat side to side, top to bottom). Project completed within 5 days and on budget. Very professionally done
Homestars Review
Projects Completed
Years in Business
PROs in the team
Thinking of waterproofing your basement?

Whether you are looking for an estimate or just a consult feel free to reach out and our team will help you!

Frequently asked questions

What is the difference between dampproofing and waterproofing for basements?
Dampproofing is a basic moisture control measure, whereas waterproofing involves a comprehensive system to prevent water penetration. Dampproofing is less robust and doesn't provide the same level of protection as waterproofing.
How is a water test conducted for assessing basement leaks from the outside?
We conduct a water test by turning on a hose and placing it against the area of the home's foundation. This helps determine if there is a foundation leak causing water to enter from the outside.
What are the steps involved in exterior basement waterproofing?
The process includes locating the breach in the foundation, excavating and exposing the footings, removing and replacing old weeping tile, cleaning and inspecting foundation walls, applying rubber and polyethylene membranes, installing gravel over weeping tile, and backfilling and compacting the area. This comprehensive approach ensures effective waterproofing and prevents further water penetration into the basement.
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