What Moisture Does to Wood Over Time
Years of damp air do slow, quiet damage. Floor joists soften and rot. Support beams sag. The posts holding everything up sink into wet soil or rot at the base. Upstairs, you feel it: floors that bounce when you walk, a dip in the hallway, doors that stick, cracks in the drywall. By the time you feel it upstairs, the damage below has been growing for years.
What We Fix
We repair the structure that holds your floors up: sistering new lumber alongside weakened joists, replacing rotted sections of beams, installing new support posts on proper footings where old ones have sunk or rotted, and adding supplemental beams where spans are too long. Every repair is sized for the actual load — we do not guess at structural work.
Fix the Cause, Not Just the Symptom
New joists in a wet crawl space will rot just like the old ones. That is why structural repair almost always goes hand in hand with moisture control. We fix the wood and then fix the water — drainage, encapsulation, or both — so the repair lasts. Anyone who quotes you new beams without asking about the moisture does not understand the job.
How It Works: Our Process
Step 1 — Free inspection. We map every damaged joist, beam, and support, and find the moisture source.
Step 2 — Written plan. Exactly what gets repaired or replaced, and the moisture fix that protects it. Every project is different — contact us for a free written estimate.
Step 3 — Temporary support. We shore up the structure before removing anything damaged.
Step 4 — Repair. Sistering, replacement, new posts and footings — built to carry the load.
Step 5 — Dry it out. The moisture-control system goes in so the new wood stays sound.
When to Call Sooner Rather Than Later
A slightly bouncy floor is a repair. A visibly sagging floor with cracked drywall upstairs is a bigger repair. Wood rot does not stop on its own — it spreads. The earlier we get under there, the smaller the fix.
Sistering vs. Replacement: How We Decide
Not every damaged joist needs to come out. Sistering — fastening a new full-length joist alongside the weakened one — restores strength with less demolition and less cost, and it is the right call when the original joist is mostly sound with localized damage. Full replacement is for joists that are rotted through, structurally compromised along their length, or the wrong size for the span. We make the call member by member during the inspection, and the written plan shows you which is which. Either way, the repair is sized for the actual load it carries.
Support Posts and Footings: Why the Base Matters
A surprising number of crawl space support posts fail at the bottom, not the top: the post sits directly on damp dirt, wicks moisture up, and rots from the base — or it slowly sinks into soft wet soil. A proper support is a post on a real concrete footing, with the post kept off direct soil contact. When we replace failed supports, we pour proper footings and set the posts right. It is more work than dropping a post on the dirt, and it is the difference between a repair that lasts and one that fails the same way in ten years.
Will My Floors Be Level Again?
Honest answer: we can usually improve things significantly, but a house that has settled for decades will not come back to laser-level — and trying to force it can crack drywall and finishes upstairs. Our goal is structural soundness first (no bounce, no ongoing sag) and meaningful leveling second. During the inspection we will tell you what is realistic for your house: what we can lift, what we will stabilize in place, and what the floors will feel like when we are done.
Call (301) 679-9193 for a free crawl space inspection.