# Sagging Floor Repair Baton Rouge | Joists, Beams & Supports

> Sagging floor repair in Baton Rouge: sistered joists, new girders and adjustable supports under raised homes. Find the cause, fix the structure. Call today.

URL: https://foundationrepairbatonrougelouisiana.com/sagging-floor-repair/

![Sagging Floor Repair in progress at a Baton Rouge home](https://foundationrepairbatonrougelouisiana.com/images/hero-sagging-floor-repair-sistered-joists-crawl-space.webp)

# Sagging Floor Repair in Baton Rouge

Sistering joists, adding girders and supports under soft, bouncy or sloping floors in raised homes. Typical range: **$1,500–$8,000**.

[Call (225) 635-8757](tel:+12256358757) [Book a free evaluation](https://foundationrepairbatonrougelouisiana.com/contact/)

-   Free on-site evaluation
-   Written per-piling price
-   Same-day callback

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Free on-site evaluation · written price

-   20 years of industry experience
-   Written per-piling pricing
-   Same-day callback
-   Serving 5 parishes

Last updated: September 22, 2026

[Foundation Repair Baton Rouge](https://foundationrepairbatonrougelouisiana.com/) is a foundation repair company with 20 years of industry experience, serving Baton Rouge and the Capital Region, and sagging floor repair is one of the most common calls from owners of older raised homes. A floor that dips in the middle of a room, bounces when you walk, or rattles the china cabinet is telling you something underneath has given up — a joist, a girder, or the support under it.

Sagging floor repair typically costs **$1,500–$8,000**, depending on the span, how much framing is damaged and how easy the crawl space is to work in.

## Finding the cause

We take floor readings in the affected rooms, then go underneath. The usual causes are joists spanning too far between supports (common in older homes and additions), joists notched or cut for plumbing and ductwork, rot from a damp crawl space, and girders or piers that have settled. Each one has a different fix, so the diagnosis matters more than the lift.

## How we fix it

-   **Sistering:** new lumber fastened full-length alongside weakened joists.
-   **New girder and piers:** a beam added under the middle of a long span, carried on new concrete piers on footings.
-   **Adjustable supports:** steel posts on concrete pads under an existing girder, fine-tuned after installation.

We shore the floor while we work and lift gradually so plaster and tile don’t crack. If rot is the cause, the moisture problem gets addressed too — see [crawl space repair](https://foundationrepairbatonrougelouisiana.com/crawl-space-repair/). If the whole house is out of level rather than one room, you need [house leveling](https://foundationrepairbatonrougelouisiana.com/house-leveling/) or [pier and beam repair](https://foundationrepairbatonrougelouisiana.com/pier-and-beam-foundation-repair/).

## What's included

-   Floor elevation readings in affected rooms
-   Crawl-space inspection of joists, girders and piers
-   Cause identified — span, rot, notching or failed support
-   Written scope with options and prices
-   Temporary shoring during repair
-   Sistered joists, new girders or supports as scoped
-   Gradual lift and final shimming
-   After-repair readings

## Sagging floor fixes compared

DIY / patch it

Cheapest crew

Done properly

Fixes the cause

No

Sometimes

Yes — span, rot or support

Method

Floor leveler over the sag

Post jacked under the dip

Sister, girder or engineered support

Measurement

None

None

Before and after readings

Typical cost

$100–$500

$300–$1,000

$1.5k–$8k

## Related resources

-   [How Much Does Pier and Beam Foundation Repair Cost?](https://foundationrepairbatonrougelouisiana.com/guide/pier-and-beam-foundation-repair-cost/)
-   [How Much Does House Leveling Cost in Baton Rouge?](https://foundationrepairbatonrougelouisiana.com/guide/house-leveling-cost/)
-   [9 Signs of Foundation Problems in Baton Rouge Homes](https://foundationrepairbatonrougelouisiana.com/guide/signs-of-foundation-problems/)

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Free on-site evaluation, written price per piling.

[(225) 635-8757](tel:+12256358757) [Book online](#service-form)

Mon–Fri 7:00 AM–6:00 PM · Sat 8:00 AM–1:00 PM

Methods & standards

-   Joists sistered full-length where possible
-   New girders with added piers on footings
-   Adjustable steel supports on concrete pads
-   Gradual jacking — no sudden lifts
-   Moisture-checked framing
-   LSLBC-registered contracting

Price guide

$1,500–$8,000

Depends on span, access and rot

[Estimate my house](https://foundationrepairbatonrougelouisiana.com/tools/foundation-repair-cost-estimator/)

The process

## How sagging floor repair works, step by step

1.  1
    
    ### Find the cause
    
    Long spans, rotted joists, cut or notched framing, or a pier that sank.
    
2.  2
    
    ### Shore
    
    Temporary jacks carry the floor while we work.
    
3.  3
    
    ### Reinforce
    
    Sister joists, add a girder and piers, or install adjustable supports.
    
4.  4
    
    ### Lift and verify
    
    The floor is brought up gradually and re-measured.
    

## What the work looks like

Illustrative photos of the methods described on this page.

[Foundation Repair Baton Rouge Call us to schedule a free sagging floor repair estimate Free laser survey. Written plan with unit prices. (225) 635-8757](tel:+12256358757)

## Sagging Floor Repair FAQ

### Why are my floors sagging in the middle of the room?

Usually because the joists span too far between supports, have been cut or notched for plumbing, or have softened from rot. A girder or pier that has sunk can also let the middle of a room drop.

### Is a sagging floor dangerous?

A gradual sag is usually not an immediate hazard, but a floor that feels springy, has soft spots, or is sagging fast should be looked at promptly — especially under heavy furniture, bathtubs or appliances.

### Can you fix a sagging floor without tearing up the floor?

In a raised house, almost always. The work is done from the crawl space underneath.

### Is the foundation evaluation really free?

Yes. The on-site evaluation, laser elevation survey and written plan cost nothing and carry no obligation. If the numbers say your house is within normal tolerance, we tell you that and leave the readings with you. An independent engineer's report, when a lender or buyer requires one, is billed by the engineer — typically $500–$2,000.

## Related services

[Pier & Beam Foundation RepairReplacing failed piers, rotted sills and cracked beams under raised Baton Rouge homes — the structural parts, not just the shims.](https://foundationrepairbatonrougelouisiana.com/pier-and-beam-foundation-repair/) [House LevelingRe-leveling raised homes with steel shims and new pier caps, measured with a laser before and after so you see the numbers.](https://foundationrepairbatonrougelouisiana.com/house-leveling/) [Crawl Space RepairVapor barriers, drainage and supplemental supports under raised homes — stopping the humidity that rots sills and joists.](https://foundationrepairbatonrougelouisiana.com/crawl-space-repair/)

Book a free sagging floor repair evaluation

Start with clear answers from an experienced team. Tell us what you are seeing, and we will call back the same business day to arrange your free evaluation.

Faster by phone: [(225) 635-8757](tel:+12256358757)