Power Post & Lally Column Installation

New Hampshire and Surrounding Areas

Emergency Services Available

10% Off Your First Service

Military Discount

Restore Structural Support. Eliminate Sagging Floors.

Basement support columns carry the weight of your home. When they rust, shift, or fail, the structure above them is affected.


At Arta Foundation Repairs, we replace failing lally columns and install permanent steel power posts to restore strength and stability.

Restore Structural Support With Lally Column & Power Post Installation

Sagging floors and weakened support columns can compromise the structural integrity of your home. Arta Foundation Repair specializes in Lally column replacement and steel power post installation to restore strength, stability, and proper load-bearing support to your basement and foundation system. Our structural repair solutions are designed to permanently correct failing supports and ensure your home remains safe and level for years to come.


Our Lally column and power post services include:

  • Lally column replacement and upgrades
  • Steel power post installation
  • Adjustment of sagging floor systems
  • Replacement of rusted or failing support posts
  • Load redistribution and structural reinforcement
  • Basement beam and girder support stabilization
  • Temporary support during structural repairs
  • Long-term foundation stabilization solutions


If you notice uneven floors or signs of structural movement, contact us today to schedule a professional evaluation.

Signs Your Lally Columns May Need Replacement

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Rusted or corroded steel columns

Black warning triangle with a white exclamation mark inside.

Columns leaning or shifting

Black warning triangle with white exclamation mark icon

Sagging or uneven floors above

Black warning triangle with a white exclamation mark inside.

Temporary jack posts in place

Black warning triangle with white exclamation mark icon.

Cracked basement floor around column base

Black warning triangle with a white exclamation mark inside.

Wood shims stacked under supports

Lally Column Replacement

Older lally columns can deteriorate over time due to moisture, corrosion, or improper installation.


We safely remove damaged columns and replace them.


Power Post Installation

Power posts are adjustable steel support columns designed for permanent structural reinforcement.


They are commonly used to:

Sagging beam icon

Correct sagging beams

Supports icon

Reinforce undersized supports

Scissors jack icon

Replace temporary jack posts

Floorboards icon

Stabilize aging floor systems

Basement with a central support pole, exposed pipes, and a blue water heater against the wall.
Basement with a central support pole, exposed pipes, and a blue water heater against the wall.

Why Proper Installation Matters

Improperly installed support posts can cause:

Floorboards icon

Continued floor movement

drywall icon

Cracking in drywall

Structural stress icon

Additional structural stress

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Shifting or sinking columns

Correct footing support and alignment are critical. We make sure the load is transferred properly and safely.

Contact Us

If your home is showing signs of sagging floors or failing support columns, timely repairs are essential. Arta Foundation Repair provides expert Lally column replacement and power post installation designed to restore stability and peace of mind. Contact us today to schedule a structural assessment and receive your customized repair plan.

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Arta Foundation Repair
Lowest Price Guarantee
We promise to beat any competitor's written quote for the same quality foundation repair. Your home deserves the best care at the best price.
Contact us today for your free estimate
Arta Foundation Repair

10% Off First Service

Save 10% on your first foundation repair service with Arta Foundation Repair. Professional solutions for your home's foundation needs across New Hampshire, Vermont, and Maine.
Contact Arta Foundation Repair today to schedule your inspection and claim your discount.

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

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