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📍 Montgomery, AL 📅 2026-06-11 🕐 5 min read

Beam and Post Replacement in Montgomery, AL

Beam and post replacement is a critical part of foundation repair for pier‑and‑beam homes in

Montgomery, Alabama. Over time, wooden posts can rot, steel posts can rust, and concrete

blocks can settle. Replacing these supports restores the load path and prevents floor sagging.

When to Replace Beams and Posts

Signs that your beams or posts need replacement include: visible rot or crumbling, leaning

posts, cracked beams, beams that have been notched or cut (e.g., by plumbers), termite

damage, or floors that sag significantly. Also replace if the original posts were not set on

footings and have sunk into the soil. Montgomery Foundation Repair Co inspects every pier

and beam as part of our foundation evaluation.

Replacement Materials

We offer several options for new posts. Pressure‑treated 6x6 wood posts are economical but

can eventually rot if moisture returns. Steel adjustable posts (also called lally columns) are

strong and resistant to rot; they also allow future leveling. Concrete block piers (stacked

blocks) are traditional but can settle if not on a footing. For the best longevity, Montgomery

Foundation Repair Co recommends steel posts set on precast concrete footings. For beams,

we use either pressure‑treated lumber or engineered laminated veneer lumber (LVL) for heavy

loads.

The Replacement Process

First, we support the floor above the failing post or beam with temporary jacks. Then we

remove the old support. For posts, we dig a hole and pour or place a concrete footing of

appropriate size. The new post is cut to length and installed on the footing, with a steel plate or

bracket at the top to connect to the beam. For beams, we cut out the rotted section and sister

or replace the beam. After installation, we release the temporary jacks gradually, allowing the

floor to settle onto the new support. Montgomery Foundation Repair Co completes most

replacements in one day.

Combining with Other Repairs

Post and beam replacement is often part of a larger foundation repair. If the soil beneath the

footings is unstable, we may install helical piers to support the new posts. If the crawl space

has moisture problems, we will recommend encapsulation to prevent future rot. Montgomery

Foundation Repair Co designs a comprehensive plan that addresses all issues, not just the

immediate one.

Frequently Asked Questions

How much does beam and post replacement cost in Montgomery?

$500‑$1,500 per post, $1,000‑$3,000 per beam section. Montgomery Foundation Repair Co provides free estimates.

Can I use a car jack to support the floor while I replace a post?

Car jacks are not stable for this purpose. Use screw jacks or hire a professional. A collapsing floor is dangerous.

How often should posts be inspected?

Every 2‑3 years for crawl spaces without encapsulation; every 5 years for encapsulated spaces. Montgomery Foundation Repair Co offers inspection services.

Do steel posts need to be grounded to prevent corrosion?

In dry crawl spaces, no. In damp spaces, we use galvanized posts or apply corrosion‑resistant paint.

Need a free foundation inspection from a licensed Montgomery contractor?

Call (334) 835-5928
Free Foundation Inspection Call (334) 835-5928