Manchester

Helical piles in Manchester, Maine

Maine has some of the deepest frost requirements in the eastern U.S. Portland uses 48 inches and Bangor uses 60 inches, according to a compiled frost-depth reference that cites local codes. A frost-heaved deck or porch post is a familiar sight, and helical piles are a common fix because the shaft goes well below the frost line and the helix plates resist uplift.

Soil is the other factor. Much of coastal and lowland Maine is covered by glacial marine clay that the Maine Geological Survey links to landslide risk along bluffs. The Maine Uniform Building and Energy Code requires frost protection and leaves the depth to the local jurisdiction, so confirm with your town code enforcement officer. Ledge and boulders are common, so a test pile is worth doing.

Helical pile companies serving Manchester

One company based in Manchester is listed.

• Techno Metal Post Maine: A Techno Metal Post helical pier dealer serving all of Maine for decks, porches, additions, homes, cottages and garages.

Costs and what to ask

HomeGuide reports that helical piers cost about $2,000 to $4,000 each installed nationally, with about $3,000 typical. Island or remote-camp work usually costs more because of equipment transport, while mainland deck footings are often at the lower end. See our helical pier cost guide for the main cost drivers. Questions to ask:

• How deep do you expect to go, and how do you document torque for each pier?
• Will you drive a test pile before committing to a design on ledge or boulder-prone ground?
• Which galvanizing and shaft size are specified?
• Does the quote cover the town permit, and what does the warranty cover?

Listings also include Hampden and Fort Kent. See all Maine helical pile installers.