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Before you hire: 4 questions to ask

General guidance for any helical pile contractor, not a statement about this company's practices.

  • 1
    Pile designWho engineers the pile layout, and will you get a stamped letter or drawings?
  • 2
    Torque recordsWill they log final installation torque for every pile and give you a copy?
  • 3
    Product & coatingWhich manufacturer and shaft size do they install, and is the steel galvanized?
  • 4
    Permits & warrantyDo they pull permits and book inspections, and what warranty covers the work?

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Mainguy Construction + Helical Piles

Mainguy Construction + Helical Piles is a general contractor in Ontario, reachable at 905-442-7389. Its website is mainguyconstruction.ca. Contact the company directly to confirm current services and the areas it covers.

As the name suggests, the company combines general construction with helical pile work, a common pairing for deck, addition and cottage foundations. Confirm with the company what helical work it performs and whether it installs piles itself or subcontracts them.

To request a quote, call 905-442-7389. For any helical pile installer, ask which pile sizes would be used, whether installation torque is recorded, whether an engineering letter is provided, who handles permits, and what the warranty covers. Ask for the scope of work in writing.

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© 2026 Helical Pile USA. An independent directory of helical pile installers, manufacturers, and distributors in the United States and Canada. Listings are provided for information only and are not endorsements; always verify licensing, insurance, and engineering requirements with the company and your local building department.