Foundation Warning Sign · Diagnosis

Sagging, Sloping, or Bouncy Floors

A floor that dips toward the middle of the room, slopes toward one wall, or gives under your feet is not a flooring problem. It is the support system under the house giving up. Here is what causes it, how far it usually goes, and how we put the floor back on solid support. We diagnose the real cause first, then prescribe the fix that matches it, not the priciest one. Free in-home inspection, no pressure.

Local owned & operated, 30+ years of experience
We diagnose first, the right fix, not the priciest
Life-of-structure warranty, written estimate

Request Your Free Inspection

Under 2 min

FRX Free Inspection

Your info stays with us. No spam, no resold leads. By submitting you agree to receive texts & calls from FoundationRX. Reply STOP to opt out.

Local & Family-Owned
30+ years of foundation experience
Diagnosis First
The right fix, not the priciest one
Life-of-Structure Warranty
We stand behind the work
Free In-Home Inspection
Straight answer, no sales pitch

What you're seeing

What a failing floor system feels like

Floors give you more warning than almost any other part of the house. These are the signs homeowners describe to us most often.

A dip toward the middle of the room
Set a marble down. If it rolls to the same spot every time, the floor is settling toward the center, usually over a failing girder line.
Bounce when you walk across it
Floors that flex under normal footsteps have lost support underneath, from a post that has dropped, a split beam, or wood that is losing strength.
A gap under the baseboard
When the floor drops and the wall does not, a gap opens along the bottom of the trim. It is usually widest where the dip is deepest.
Squeaks that keep spreading
New squeaks in more places over time mean the subfloor is separating from joists that are moving underneath it.
Soft spots near a bath or exterior wall
Springy spots that feel different from the rest of the floor usually mean water got in and the subfloor or the joist under it is rotting.
Close-up of a settled support post dropped away from the girder above it
The diagnosis

What's giving out underneath

Your floor framing is usually fine. What is holding it up is not. Here is what we go under the house to look at.

Failing posts and girders

Support posts settle into the crawl space dirt or sit on footings that were never adequate, and the beam they carry splits or drops. The middle of the floor has nothing solid under it anymore.

Moisture and wood rot

Damp crawl space air keeps joists and subfloor wet. Wet wood loses strength long before it looks bad, and it always starts where you cannot see it.

Undersized or over-spanned framing

Some homes were framed light for the span, or had a wall removed in a remodel that was quietly holding something up. The floor was marginal from day one and time finished the job.

Not sure which one you have? That's exactly why we diagnose first.

How serious is it

Support problems and rot problems cost differently

The line between them is moisture. That is why we look at the wood and the water on the same visit.

Caught early

Support it and you're done

A floor that has just started to dip is usually a support problem, not a rot problem. New posts, beams, and proper footings under the existing joists put it back on solid footing without opening up your finished floors.

Left alone

It turns into a rebuild

Once joists and subfloor rot through, adding support underneath is not enough. The framing itself has to be replaced, which means tearing out flooring and real disruption in your house. Moisture is what gets you there, and moisture does not stop on its own.

The prescription

How we put your floor back on solid support

How much work it takes comes down to whether the wood is still sound. We tell you which one you have before we quote it, not after.

Sagging Floor Repair

Adjustable steel supports, new posts, and proper footings under the girder line take the sag out and hold the floor where it belongs. Where the framing allows, we can recover some of the dip over time.

Best for: Floors that are dipping or bouncing where the framing is still sound.

Floor Rebuilds

Where joists, girders, or subfloor have rotted past saving, we replace the framing itself and put the floor back on new wood that will carry the load.

Best for: Floors with soft spots, visible rot, or framing that has already failed.

Fixing the moisture with it

If damp crawl space air caused the rot, the repair will not hold unless the water is handled too. That is a straight conversation at the inspection, not an upsell after the fact.

Best for: Any sagging floor over a damp or unsealed crawl space.

The FoundationRX Diagnostic Method

We diagnose. We prescribe. We treat.

A lot of foundation repair companies show up to sell you the most expensive thing they install. We show up to figure out what's actually wrong under your home first, then prescribe the repair that fixes it, and tell you straight, even when the answer is "you don't need as much as you were told." That's the difference between a sales call and a diagnosis.

01

Diagnose

A free in-home inspection by someone who does this work, not a commission salesperson. We look at the real signs, inside and underneath, and walk you through what's actually causing the movement. You get a clear, honest read on where your home stands.

02

Prescribe

We lay out the right fix for what's actually wrong, not the priciest line item. A plain-English explanation, a fair price in writing, and the warranty terms with it. We go over the plan and your options, and you decide on your own time. No "today only" pressure.

03

Treat

Dependable work by our own local crew, on time, cleaned up after themselves, and finished on or ahead of schedule, the way our customers describe it. We keep you in the loop the whole way, and we stand behind the work for the life of the structure.

Most foundation companies sell you a fix. We diagnose first, then prescribe only what your home actually needs. That's the difference between an honest local team and a sales quota from out of town.

Related warning signs

Sagging floors rarely travel alone

What is happening under the floor usually shows up somewhere you can see. If any of these look familiar, they belong in the same diagnosis.

Wet or musty crawl space

Damp air under the house is what rots the framing holding your floors up. The two almost always come together.
How we dry it out

Sticking doors & windows

A floor that drops takes the walls standing on it with it, and the door frames rack out of square.
Why this happens

Cracks in drywall or trim

Seams overhead that keep splitting often trace back to a floor system settling underneath them.
Diagnose the cause

Not sure which one you have? That's exactly why we diagnose first.

Sagging floor questions

Straight answers about floors that sag and bounce

Almost always because the support under the middle of the house has dropped. In a crawl space home that is a post settling into the dirt or a girder that has split or rotted. The floor framing spanning between them is usually fine. What is holding it up is not.

Local & family-owned · Free in-home inspection

Get a straight diagnosis on your floors, free.

You won't get a sales pitch. You'll get someone under your house looking at the actual posts, beams, and joists, a plain-English read on whether it's support or rot, what it takes to fix it, and a fair price in writing.

Request your free inspection

Under 2 min

FRX Free Inspection

Booked in under 2 minutes. No pressure to decide on the spot. Reply STOP to opt out of texts.