Flourtown, Pennsylvania has one listed helical pile company, Techno Metal Post Montco LLC. Frost depth, karst and cost notes for Montgomery County.
Pennsylvania has two very different trouble spots for foundations. In the east and central valleys, limestone and dolomite bedrock produce sinkholes, and the Pennsylvania Geological Survey has inventoried karst features since 1985. A buyer or builder can use that mapping to see whether a lot sits in a higher-risk area.
The Uniform Construction Code leaves the frost line to each municipality in Table R301.2(1). Local values commonly fall between about 30 and 42 inches, and the Philadelphia area generally uses a shallower figure, as compiled by FootingDepth. Confirm the Springfield Township number before design.
Typical Montgomery County jobs include deck and porch footings, home additions and underpinning older houses. Piles install with compact machines, which helps on established lots with mature landscaping and limited access.
The directory lists one company in Flourtown.
A typical installed helical pier costs about $2,000 to $4,000 nationally, with $3,000 a common average, per HomeGuide. Pennsylvania prices shift with depth to bearing and how many piers the load requires. See our helical pier cost guide.
Other Pennsylvania installers are under Pennsylvania helical pile installers.