Supplemental Beams & Jacks in Dorchester, GA
Dorchester floors, steady over marsh-edge ground.
Marsh-edge homes at Dorchester have damp crawl spaces that rot the supports. New steel jacks and a supplemental beam bring the floor back solid.
Supplemental Beams & Jacks in Dorchester
Why Dorchester homes need this, and how we do it
Dorchester sits along the marsh edge, and its homes have crawl spaces that stay damp because of how close the ground is to the water. That steady moisture rots the supports from below. Wood posts break down at the base, girders drop as they lose footing, and the floor above sags and turns springy where the old framing has given way.
We bring it back with new steel. Adjustable jack posts go in on proper concrete footings so they carry the load to firm ground, and a supplemental steel or engineered beam takes over the spans where the wood has weakened. Rotted posts and girders are replaced with new material. The floor is raised slowly so the finishes above stay intact.
Once the steel is set the floor holds firm and the sag is gone. Because the marsh-edge damp is what rotted the last supports, we usually recommend drying the crawl space at the same time so the new steel and framing are not left in the wet that caused the trouble.
What’s included
The whole load path - not just the soft spot
Every supplemental beams & jacks we do in Dorchester, GA 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
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
Free inspection
We read elevations across the floor, check every post and girder, and find where the support actually failed.
Written plan & price
You get the jack count, the beam length and any framing replacement itemized at one fixed price, with financing options.
Install, usually one day
Our crew digs and pours the footings, sets the steel, and brings the floor up in measured stages.
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 Dorchester
Questions Dorchester homeowners ask us
My Dorchester home sits near the marsh with a damp crawlspace, are the supports rotting down there?
A damp marsh-edge crawlspace rots the supports over time, and that's usually what weakens your floor. We replace them with steel jacks on concrete footings and a supplemental beam, working from underneath.
The supports under my house look damp and rotted, what caused that out here?
Being close to the marsh keeps the crawlspace damp, and damp supports rot and lose their strength. We set steel jacks on poured footings and a beam to carry the load, usually finishing in a day.
Why does my floor feel weak over the damp crawlspace?
A weak floor over a damp crawlspace usually means a rotted support isn't holding its share anymore. We set steel jacks on concrete footings and a supplemental beam under the weak span to firm it up.
Can you replace rotted marsh-edge supports without me leaving the house?
Yes, it's all crawlspace work, so you can stay put while we set steel jacks on footings and a beam. Most Dorchester repairs are done in a single day.
How do I know if my damp crawlspace is already hurting the floor?
A free inspection with a written report will tell you, since we look right at the supports for rot and softness. If they're going, we set steel jacks on footings and a beam to fix it.
“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.”
Free inspection · No obligation
Find out what's really happening under your Dorchester home
We measure, photograph and explain what we find - then give you one fixed written price. No pressure, and no obligation to book anything.
- Free inspection with a written report
- Fixed price before any work starts
- Our own trained crews - never subcontractors