How to Fix Squeaky Floors in Your LA Home

Every step you take triggers a chorus of creaks and squeaks. If your Los Angeles home has squeaky floors, you know how frustrating it can be — especially at night when you are trying not to wake anyone up. The good news is that squeaky floors are almost never a structural problem. They are a noise problem, and most can be fixed in an afternoon with basic tools.

Why Floors Squeak

A squeaky floor is caused by movement. Specifically, it happens when the subfloor (the layer of plywood or boards beneath your finished floor) moves against the floor joists below it. When the subfloor is not tightly secured, stepping on it causes the wood to flex and rub against nails, screws, or adjacent boards. That friction creates the squeak.

The most common reasons this happens:

• Loose nails — Over time, nails work their way out of the joists as the wood expands and contracts with humidity changes. The nail moves up and down in its hole with every step.
• Gaps between subfloor and joists — If a joist warps or shrinks, it creates a gap. When you step on that spot, the subfloor flexes down into the gap and squeaks.
• Hardwood floor movement — Hardwood floorboards can shrink during dry seasons, creating gaps between boards that rub when walked on.
• Inadequate fastening — Some builders use too few nails or screws, especially in tract homes built quickly during LA's building booms.

Locate the Squeak

Before you can fix a squeak, you need to pinpoint exactly where it is coming from. Walk slowly across the squeaky area and have someone listen from below if you have a basement or crawl space.

• Mark the spot — Use painter's tape to mark each squeaky spot on the floor surface.
• Identify the joist — Squeaks usually happen at or near a joist. Use a stud finder to locate the joists beneath the squeaky area. Joists are typically spaced 16 inches apart.
• Check from below — If you can access the area from below, have someone walk on the squeaky spot while you watch. You may see the subfloor flex or see gaps between the subfloor and joists.

Fix 1: Talcum Powder for Hardwood Floors

If the squeak is caused by two hardwood boards rubbing together, the simplest fix is lubrication. Sprinkle talcum powder, baby powder, or powdered graphite over the squeaky area. Work the powder into the seams between boards using a soft cloth. Walk on the area to work the powder deeper into the joints.

This is a temporary fix that may need to be repeated every few months, but it is quick, free, and does not damage the floor.

Fix 2: Screws Through Carpet

For carpeted floors, the best solution is a breakaway screw kit like Squeeeeek No More (about $25 at hardware stores). This kit includes a depth-control fixture and special screws that snap off below the surface.

1. Locate the joist beneath the squeak using a stud finder.
2. Place the depth-control fixture on the carpet over the joist.
3. Drive the special screw through the fixture, carpet, pad, subfloor, and into the joist.
4. The screw pulls the subfloor tight against the joist, eliminating the gap.
5. Rock the screw back and forth to snap off the head below the carpet surface.

The screw head breaks off below the carpet pad, so it is completely invisible. This works in about 90 percent of cases.

Fix 3: Screws Through Hardwood

For exposed hardwood floors, you can drive trim-head screws through the hardwood and subfloor into the joists.

1. Drill a pilot hole through the hardwood at the squeak location, angled slightly toward the joist.
2. Drive a trim-head screw (#8 x 2.5 inches) until the head sits just below the wood surface.
3. Fill the hole with wood filler that matches your floor color.
4. Sand smooth once the filler dries.

Fix 4: Shims from Below

If you have access to the underside of the floor through a basement or crawl space, shimming is the most effective and least invasive fix.

1. Have someone walk on the squeaky spot while you watch from below.
2. Identify the gap between the subfloor and the joist.
3. Apply carpenter's glue to a wood shim.
4. Gently tap the shim into the gap. Do not force it — you want to fill the gap, not push the subfloor up.
5. Let the glue dry and test by walking on the spot again.

Fix 5: Construction Adhesive from Below

For larger gaps or areas where shims do not fit well, apply a bead of construction adhesive along the seam between the subfloor and the joist. The adhesive fills the gap and prevents movement. This is especially effective for long squeaks spanning several feet.

Fix 6: Add Blocking Between Joists

If the squeak is between joists (not over one), the subfloor may be flexing in the middle of the span. Cut a piece of 2x8 or 2x10 to fit tightly between two joists, and screw it up against the subfloor from below. This supports the subfloor at the flex point.

LA-Specific Considerations

• Slab foundations — Many LA homes are built on concrete slabs rather than raised foundations. Without access from below, you are limited to fixes from above.
• Older homes with plank subfloors — Pre-1960s LA homes often have diagonal plank subfloors instead of plywood. These are more prone to movement and squeaking.
• Dry climate — LA's dry air causes wood to shrink more than in humid climates, which loosens nails and creates gaps.

When to Call a Professional

Consider calling a professional if the squeaky area is large and needs dozens of screws, if you have expensive hardwood you do not want to risk damaging, if the floor feels soft or bouncy (possible structural issue), or if you do not have access from below and need invisible repairs on hardwood.

GoldKey Repairs handles squeaky floor repairs across Los Angeles. $150 for the first hour, $85 for each additional hour. Call (323) 630-9115.