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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?

Herbert F Darling Inc

Herbert F Darling Inc, called HF Darling, is a pile driving and geotechnical contractor at 531 Fillmore Ave in Tonawanda, New York. Its site says it has been in business more than 80 years in the Buffalo area and has in-house design engineering.

Its deep foundation services include caissons, soldier piles, micropiles, anchors, auger cast piles, helical piles and pile testing. It also does earth retention such as sheeting cells, soldier pile and lagging walls and cofferdams, and marine work including barge and tug rental and pile driving. Helical piles are one of many deep foundation methods, aimed at commercial and industrial clients.

The site says it serves New York and Pennsylvania and invites bid inquiries. Call 716-632-1125 or email the address on the site. Ask which method fits your loads, who provides design engineering, and how piles are tested.