Leaders in Environmental and Transportation Infrastructure Services

Piling & Shoring

Full Service

Excavation and Piling

Our comprehensive offering, including site services and design-build expertise, ensures an efficient and high quality project from the ground up.

Dufresne is more than a piling contractor. Thanks to our comprehensive capabilities, our team can undertake both excavation and piling/shoring, meaning you only have one contractor to manage. This allows you more efficient coordination of onsite activities when beginning your construction project. Not only does this provide more cost certainty, it can lead to efficiencies in time, as well as improvements in the quality of your project. Many customers trust us to spot challenges which might otherwise be overlooked.

Market Leader

Since 1967, we have built a reputation as a market leader in excavation and piling in Eastern Ontario, with an established local presence and solid track record. We are CWB certified so you can be assured of quality work.


Dufresne’s group of professionals brings their design expertise to every project, helping customers maximize the use of their property. Our team will fine tune your design where appropriate, ensuring constructability and material availability for your project. Developers often turn to us to provide our recommendations to their design engineers at the start of a project.

Wide-Ranging Sector Experience

With experience in unique projects such as the West Block Rehabilitation Project on Parliament Hill, through to demanding heavy civil projects such as bridges and the LRT, our team can support you in any construction project. We deliver services to customers in the construction, land development, real estate, industrial, commercial, institutional, provincial, municipal and heavy civil sectors.

Expert Professionals

Our team is led by a group of industry veterans who boast nearly 40 years of combined construction, land development and real estate experience. They are supported by a team of highly skilled and knowledgeable professionals.

Customer Service

At Dufresne we aim to deliver unparalleled customer service, ensuring we meet budgetary, time and safety constraints. As a result, many companies have designated us as their preferred provider for excavation and associated services.


  • Soldier pile & wood lagging
  • Steel sheetpiling
  • Secant (caisson) walls
  • Underpinning
  • Cofferdams
  • Raker braces
  • Struts
  • Tiebacks
  • Rock bolts
  • Shotcrete
  • Deep Foundations
  • Steel H-piles
  • Driven pipe piles
  • Drilled pipe piles
  • Driven wood piles
  • Concrete caissons (including rock sockets) up to 72” diameter
  • Micro-piles for compression
  • Rock anchors for tension
  • Static load tests
  • Dynamic load tests
  • Cross hole sonic logging
  • Earth excavation and disposal
  • Contaminated soil removal
  • Rock excavation by mechanical means
  • Rock excavation by drilling & blasting
  • Rock face grinding
  • Deep excavations in earth or rock
  • PVC, HDPE and concrete storm sewers, box culverts and CSP
  • PVC and concrete sanitary sewers
  • Precast concrete catchbasins and manholes
  • Watermains including all valves, fire hydrants, etc.
  • Work inside buildings
  • Low headroom environments
  • Vibration sensitive surroundings