.png)
Lally Column Replacement
In Massachusetts, Connecticut & Rhode Island
Permanent structural support for sagging beams and compromised basement columns.
Locally Owned & Operated || Free On-Site Assessments
What Is A Lally Column
A lally column is a steel support post installed in a basement to carry structural loads from beams above. Older homes may have temporary jack posts, undersized columns, or rusted steel posts that compromise structural stability. Properly installed lally columns are permanently secured to the footing and beam to provide long-term support.
Indicators of Compromised Column Support
Lally columns often require replacement due to corrosion, improper installation, or increased structural loads over time. In New England basements, moisture exposure and aging steel can weaken support posts, compromising the stability of the beams they carry.
Floor Above Feels Bouncy
Excessive movement underfoot may indicate inadequate beam support or shifting load transfer below.
Visible Beam Sagging
Deflection in the main support beam can signal that the column is no longer carrying load properly.
Uneven or Sloping Floors
Settlement or weakened support posts may cause noticeable changes in floor level throughout the home.
Signs Your Lally Columns Need Replacement
1
Advanced Base Corrosion
Severe rust at the bottom of a lally column can reduce steel thickness and compromise its ability to safely carry structural loads.
2
Temporary Jack Post Installed
Adjustable jack posts are designed for short-term support and are not engineered as permanent structural columns.
3
Inadequate or Missing Footing
Columns installed on thin basement slabs instead of properly sized concrete footings may settle and lose structural effectiveness.
Recent Lally Column Installation Projects
No stock images — only real lally column installation work completed by our team throughout MA, CT & RI.
No stock images — only real cold joint repair work completed by our team throughout MA, CT & RI.
Lally Column Replacement FAQ
Are lally columns structural?
Yes. Lally columns are structural support posts that carry load from beams above.
Can a rusted column fail?
Severe corrosion can weaken steel and reduce load capacity over time.
Do you need a permit to replace a lally column?
Permit requirements vary by municipality. Structural work may require permitting depending on scope.
How do you replace a lally column?
The load is temporarily supported, the existing column is removed, and a properly sized steel column is installed and secured to the footing and beam.
Schedule Your Free Assessment
Fast. Honest. No-Pressure Evaluations Across MA, CT & RI.
Fast. Honest. No-Pressure Evaluations Across MA, CT & RI.
