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Supplemental Beams & Jacks in Fernandina Beach, FL

Fernandina Beach floors, level under old framing.

Amelia Island homes keep their sound heart-pine framing, but supports have shifted and a century of added plumbing has cut into the floor. New steel steadies it.

(912) 638-1498
Supplemental Beams & Jacks in Fernandina Beach, FL - Diagram of supplemental floor support: steel jacks on concrete footings carrying a new beam under floor joists

Supplemental Beams & Jacks in Fernandina Beach

Why Fernandina Beach homes need this, and how we do it

Fernandina Beach on Amelia Island has some of the oldest housing stock around, and much of the original heart-pine framing is still sound after all these years. What has moved is the support underneath it. Posts and piers have shifted and settled over a century, and every round of added plumbing and ductwork cut into joists and girders to route pipes and vents. The floor system loses strength at each notch, and the floors above start to sag and bounce.

We steady it with new steel. Adjustable jack posts go in on proper concrete footings so the load is carried back to firm ground, and a supplemental steel or engineered beam picks up the spans where cutting has weakened the framing. We sister and reinforce joists that have been notched, and replace any post that has rotted or dropped. The lift is slow so the historic finishes above stay together.

When the steel is in the floor holds firm and the bounce settles out. Because the good old heart-pine is worth keeping, we work to preserve the sound framing and add support where a century of changes has taken it away, all documented in the written report.

What’s included

The whole load path - not just the soft spot

Every supplemental beams & jacks we do in Fernandina Beach, FL follows the same checklist. We support the framing that failed and the framing that is about to. A typical beam and jack scope includes:

  • Elevation readings across the floor to find the real low point
  • New poured concrete footings sized to the load and the soil
  • Adjustable steel jacks set plumb and shimmed to bear evenly
  • Supplemental beam under long or undersized joist spans
  • Rotted or split posts, girders and joists replaced or sistered
  • A slow, staged lift so plaster, tile and trim are not shocked
  • Photo documentation before, during and after
Illustration of level, evenly supported floor joists after repair in Fernandina Beach, FL

What we won’t do

We will not stack blocks or shim on bare dirt, we will not crank a jack fast enough to crack your ceilings, and we will not put new steel under wet, rotting framing without telling you the moisture has to be dealt with as well.

What to expect

Four steps, start to finish

STEP 01

Free inspection

We read elevations across the floor, check every post and girder, and find where the support actually failed.

STEP 02

Written plan & price

You get the jack count, the beam length and any framing replacement itemized at one fixed price, with financing options.

STEP 03

Install, usually one day

Our crew digs and pours the footings, sets the steel, and brings the floor up in measured stages.

STEP 04

Walkthrough & warranty

We show you the after photos, re-read the elevations with you, and hand over the workmanship warranty in writing.

Supplemental Beams & Jacks in Fernandina Beach

Questions Fernandina Beach homeowners ask us

My historic Fernandina Beach home has heart-pine framing and someone added plumbing that cut the floor, is that why it sags?

Yes, when added plumbing cuts through framing it weakens the span and lets the floor sag. We add a supplemental steel beam and jacks on concrete footings to carry the cut run, working from the crawlspace.

The supports under my old Amelia home look like they've shifted, why did that happen?

Over the decades the ground settles and old supports drift out of position, so the floor above follows. We reset the load on steel jacks over concrete footings and a beam, and the floor steadies back up.

Can you fix a floor that got cut up by past plumbing work without losing my heart-pine?

Absolutely, we work from underneath, adding a supplemental beam and steel jacks on footings to support the cut framing. Your heart-pine floors stay right where they are, usually a one-day job.

Why does my historic floor dip where the plumbing runs through?

Where the plumbing was cut in, the framing lost strength and the span dips there. We add steel jacks on concrete footings and a beam to replace that lost support and bring the dip back up.

Is heart-pine framing worth saving, or should the whole floor system get replaced?

Heart-pine is worth saving, and usually we just support it and keep it in place. We add steel jacks on footings and a supplemental beam under the weak spots, and the old framing keeps doing its job.

All frequently asked questions
5 out of 5 stars
Our floors had gotten soft and the whole downstairs smelled musty. They inspected the crawl space, showed us photos of the rot and moisture, and fully encapsulated it. The smell is gone, the floors feel solid, and our humidity finally stays under control.
Karen W. · St. Simons Island, GA

Free inspection · No obligation

Find out what's really happening under your Fernandina Beach home

We measure, photograph and explain what we find - then give you one fixed written price. No pressure, and no obligation to book anything.

Call (912) 638-1498
  • Free inspection with a written report
  • Fixed price before any work starts
  • Our own trained crews - never subcontractors