Fondasec Excavation services for the greater Montreal area, include Excavation, Demolition, Pyrite removal & Foundation services. |

For a free estimate click here

or call us at 514-627-9315


Adding a home extension? Want to redo your garage or basement floor? Need pyrite removal? From residential to commercial projects, Fondasec has the equipment and expertise for every excavation job.

Our services also include concrete breaking, trenching and site clean up.

Fondasec Excavation | Montreal area - trenching, backfill, excavate, french drains, waterproof, seal cracks |


We offer partial or total demolition in residential and commercial environments and we evaluate each site to identify the specific challenges and propose tailor-made solutions.

Fondasec Excavation | Montreal area - residential, commercial, loading material, debris, breaking, transport |

“A great job! Very neat and clean and the attention to detail was amazing! Would definitely recommend.”

Richard Taylor, DDO, QC.

Basement & Garage Floors

Having a good concrete base is critical. When a concrete floor is starting to crack or crumble, it can cause many problems such as unwanted moisture and humidity.

Let Fondasec help by recommending a solution that works for you and your budget and one that will last for many years to come.

Fondasec Excavation | garage floor cement breaking, removal of backfill and crumbling concrete. New crushed stone, new concrete slab, concrete floor |

Pyrite Removal

Problems with Pyrite?

Pyrite can lead to backfill swelling and cause your concrete floors to lift and crumble, and your foundation walls to crack. To avoid any further damage to your property, it would need to be permanently removed.

We can help!

To ensure a strong and long lasting solution, we’ll begin by demolishing the concrete floor. We will then excavate, remove the pyrite backfill, and replace it with new ¾” net certified DB crushed stone. Lastly, we will pour a new concrete floor.

Fondasec Excavation | Need Pyrite removal?  Are your concrete floors crumbling? Fondasec can help. |

Foundation Services

Water can enter your home at any point where there is an opening in the foundation including cracks in the walls, floors and around pipes.

No matter where you find it, it needs professional attention.

We offer a full range of services and specialize in:

  • Foundation Crack Repairs & Injections
  • French Drains
  • Waterproofing
Fondasec Excavation | French drains and Foundation membranes, seal cracks, metal rebar, hydraulic cement, steel plates, crushed stone, excavate, french drain, blue skin |

Foundation Crack Repairs & Injections

A cracked wall or floor is an invitation for moisture, leaks, mold and unpleasant odors to seep through.

Even small cracks can be a problem if they leak groundwater into your basement or crawl space.

Solutions include polyurethane injections and waterproofing.

Fondasec Excavation | Montreal area - interior, exterior crack repair, seal cracks, polyurethanes, metal plates, metal rebar |

For a free estimate click here.
or call us at 514-627-9315

French Drains

Prevention is a definite key in keeping your home or commercial property safe from potential flooding.

French drains and sump pumps are recommended solutions to redirect water and relieve ground water pressure.

Whatever your needs, we can install or repair your interior or exterior French drains!

Fondasec Excavation | membrane, seal cracks, metal rebar, hydraulic cement, steel plates, crushed stone, excavate, french drain, blue skin |


We use the most effective products on the market to control groundwater, rainwater and surface water from penetrating your foundation walls.

Any damage already caused by water infiltration can be repaired by excavating and waterproofing the exterior foundation walls.

Fondasec Excavation | Foundation waterproofing and water Infiltration Solutions for the greater Montreal area |

Don’t let this happen to you…

Uh oh! Mushrooms taste great on pizza, but they certainly don’t belong in your walls!

Moisture, humidity and dampness can be prevented and rectified with the help of Fondasec.

Taking preventative measures can save you from bigger troubles ahead.

Let Fondasec conduct a property analysis and recommend solutions; sometimes they can be as simple as moving gutter downspouts or correcting the slope of your lawn.

Fondasec Excavation | Don’t let moisture, mold, humidity getto this point. Have a foundation membrane and seal foundation cracks | photo from a Fondasec job site.)

For a free estimate click here
or call us at 514-627-9315