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DrySpace Foundation Works
Structural support · Sagging & bouncy floors

Floor Support Systems in Knoxville, TN

A century-old Knoxville floor was framed for a lighter house

About an hour and forty-five minutes from our shop. We measure the elevations, photograph what is carrying the floor, and price the work in writing.

FoundationScan®With every job
FreeAssessment & estimate
WarrantyMaterials & labor
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Floor Support Systems in Knoxville

What we find under houses in Knoxville

The early twentieth century neighbourhoods in Knoxville have wonderful houses with framing that was sized for the way people lived when they were built. Joists run long, the centre girder is often a single line of support with posts set straight on the crawlspace floor, and nobody planned for a kitchen island in stone or a bathroom finished in tile. A hundred years later those spans are carrying considerably more than they were drawn for.

Post-war ranch neighbourhoods across Knox County bring the other pattern. Low, wide crawlspaces with limited clearance, framing that is adequate but unremarkable, and decades of plumbing and HVAC runs cut through it. A joist that has been drilled through the middle for a waste line has lost most of its stiffness, and the springy floor over that run is the result. It is a common finding and a straightforward repair.

We measure the whole floor first, because a house with three different eras of work under it rarely has one simple explanation. Adjustable steel supports on engineered base pads go where the elevations call for them, supplemental girders shorten long spans, and sistered lumber restores joists that have lost depth to rot or to a later run. On old plaster and original trim the recovery is staged so the finishes travel with the floor.

Everything we do in Knoxville
Signs a floor has lost its support
  • A soft spot underfoot in the kitchen or a hallway
  • Dishes rattling in a cabinet when someone walks past
  • A floor that slopes enough for a ball to roll on its own
  • Gaps opening between the floor and the baseboard
  • Tile grout cracking in a line across a room
  • Interior doors that will not latch the way they used to

None of that is a diagnosis of your house. What your home actually needs comes from the assessment and the measured scan on your own crawlspace.

What's included

The same checklist on every Knoxville job

Every floor support work we do in Knoxville, TN follows the same sequence. A soft spot in the kitchen and a sloping hallway can come from completely different failures, and the wrong repair on the wrong cause does not hold. The assessment matters more than the product.

  1. Elevations measured first

    The FoundationScan® topo report shows where the floor sits now, so the repair has a measured target elevation to work to.

  2. Adjustable steel supports

    Set on engineered polymer base pads sized for the load. Adjustable means the floor can be fine-tuned later if it needs it.

  3. Supplemental beams

    Where a span is simply too long, a new girder shortens it and spreads the load across more support points.

  4. Joist & beam repair

    Rotted or overloaded joists and beams get sistered with new lumber, so the load has sound wood to carry it.

  5. Rot cause addressed

    New framing in a damp crawlspace starts down the same road as the old framing, so the moisture source is dealt with in the same visit.

  6. Guaranteed stabilization

    Stabilized at the measured elevation and checked against the scan. Stay on the annual service call and we guarantee it holds.

How floor support systems works in detail
How the job runs

Four steps, and you see the findings before the price

  1. Free assessment

    We go under the house, take moisture readings, elevations and measurements, and check every support. Takes as long as it takes.

  2. Findings & written estimate

    Photos and readings walked through with you, then a line-item price. Financing options if you want them.

  3. Install

    The same family crew that quoted the job does the work. Most crawlspace and waterproofing projects run 1–3 days.

  4. Annual service call

    $250 a year covers a service on the equipment we installed and a fresh FoundationScan® report, so changes are caught early. No contract required.

FAQ

Knoxville questions we get asked

Our nineteen twenties house has a dip in the dining room. Is that just age?

Age is how it got there and it is still worth measuring. Century-old Knoxville framing was sized for lighter living, and a hundred years of load plus a damp crawlspace does the rest. The scan tells you how far it has gone and whether it is still moving.

A plumber cut through joists under our bathroom. Can that be put right?

Yes, and it is a common repair. A notched or drilled joist has lost most of its stiffness, and sistering sound lumber alongside it restores the depth. Extra support goes in where the run cut through if the span needs it.

We're in a ranch house with a really low crawlspace. Is that workable?

Usually, and it is slower going. Low wide crawlspaces are common across Knox County and the work is normal for us. The assessment tells us whether every part of the framing can be reached properly.

Will lifting the floor crack our original plaster?

It can if it is rushed. On old Knoxville houses we lift in stages against the scan and stop at the elevation the plaster and trim will tolerate. That target gets agreed with you before any work starts.

Do you cover Knox County for warranty visits?

Yes. It is inside our service area, and the annual service call with a fresh FoundationScan® brings us back each year anyway.

Nearby

Floor Support Systems near Knoxville

Knoxville, TN sits about an hour and 45 minutes from our shop in Baxter, and we work the rest of Knox County and East Tennessee on the same runs.

All 33 towns we cover

Free floor assessment in Knoxville

We measure the elevations, find what is carrying the floor now, and price the repair in writing. No cost, no obligation.

Call or text 931-650-5859

Family owned & operatedFree estimatesFinancing as low as 0%Annual service calls available