Lakeside Construction LLC logo

Subfloor Repair and Structural Floor Reinforcement

We identify the cause, correct the structure, and rebuild your floors to last — not just cover the damage.

Request an Inspection Call or Text 706-799-5471

Fix the Source, Not Just the Surface

Soft spots, sagging floors, or uneven rooms often start with moisture or framing problems below. We locate the cause, repair the structure, and make sure your subfloor and joists meet current standards before finishes go back down.

Common Causes

  • Leaking plumbing, HVAC condensation, or past flooding
  • Termite or moisture damage in framing and subflooring
  • Undersized or sagging joists and beams
  • Improper repairs or patchwork from previous remodels
  • Rot around bathrooms, kitchens, or doorways

Our Repair Process

  • Inspect crawlspace or framing to identify the true source
  • Replace rotted or undersized subflooring and joists
  • Reinforce beams and sills with treated lumber or steel where needed
  • Install new moisture barriers and insulation
  • Coordinate finish flooring replacement or tile reset

Why Homeowners Call Us

  • Floor feels soft or bouncy
  • Tile or grout cracking over time
  • Doors rubbing or not closing properly
  • Visible dips in hardwood or vinyl flooring
  • Musty smell from moisture below

We use photos, moisture readings, and clear estimates so you know exactly what needs to be fixed and why.

Typical Repair Ranges

  • Minor localized repair: $2k to $5k+
  • Moderate damage (one room): $5k to $12k+
  • Widespread structural reinforcement: $12k to $25k+

Actual cost depends on access, moisture source, and framing replacement needed.

Subfloor Repair FAQs

Do you inspect crawlspaces and framing?
Yes. We inspect framing, sills, and joists from below to locate the cause before quoting repairs.
Can you repair only a small soft spot?
Often yes. We remove damaged material, check framing, and replace with new treated subflooring that ties into the structure correctly.
Do you repair termite or moisture damage?
Yes. Once pest treatment or moisture correction is complete, we replace any damaged wood and restore structure and flooring.
Can you level my floor?
We correct structural sag where possible and install subfloor panels properly aligned. Cosmetic leveling can be handled by our flooring partners if needed.
Do you handle insurance repairs?
Yes. We document and coordinate with insurers when subfloor damage results from covered water or impact events.
Is this something a handyman can do?
Most subfloor repairs require a licensed contractor to evaluate structure and ensure code compliance. We make sure it’s done safely and permanently.

Where We Work

We serve Columbia County and Richmond County, including Evans, Augusta, Grovetown, Martinez, Harlem, and Appling.

See full service area

Need Your Floors Checked

Schedule an inspection and we’ll locate the cause, document conditions, and outline repair options.