How to Fix a Squeaky Floor
Updated September 18, 2026
Can I do this myself?
Safe to DIY
Yes, most floor squeaks are a safe DIY fix. Before driving screws, check for pipes, cables and heating lines under the floor. Soft, bouncy or sagging floors are a different problem and need a professional.
Squeaky floors are common in homes with timber floors, both old and new. The noise comes from wood rubbing against wood or against a loose nail: floorboards or subfloor panels have separated slightly from the joists (the beams underneath), and each step pushes them down and makes them rub. Seasonal humidity changes make squeaks come and go.
How you fix it depends on what you can reach. If there’s an unfinished basement, crawl space or accessible ceiling below, you can fix squeaks from underneath with thin wooden shims, construction adhesive or blocking, without touching the finished floor. If not, you can fix it from above with special trim-head screws or a squeak repair kit, which work even through carpet.
Floors hide pipes, electrical cables and sometimes underfloor heating, so it’s important to check before driving any screw. Also note that this guide is for timber floors. Squeaks or clicking on tiled or concrete floors usually have different causes, such as loose tiles, and a soft or springy floor may mean water damage or rot rather than a simple squeak.
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Signs of the problem
- Creaking or squeaking when you walk on certain spots
- Noise that’s worse in dry seasons and quieter in humid ones
- Floorboards that move slightly underfoot
- Nail heads rising above wooden floorboards
- Visible gaps between the subfloor and joists when viewed from below
Common causes
Subfloor separated from joists
Most commonAs timber dries and shrinks, small gaps open between the subfloor and the joists. When you step on that spot, the subfloor flexes down, rubbing on the joist or on the shank of a nail. This is the most common source of squeaks.
Loose nails
Most commonNails holding the subfloor or floorboards can loosen over time. The board slides up and down along the nail shank as you walk, creating a squeak.
Floorboards rubbing each other
SometimesIn solid wood floors, adjacent boards rub together at the tongue-and-groove joints, especially as they shrink in dry weather.
Weak or missing blocking
SometimesBlocking or bridging between joists keeps them from twisting. When it’s missing or loose, joists can shift slightly and let the floor move.
Damaged or rotting framing
Less commonWater leaks, termites or rot can weaken joists and subfloor. This usually shows as a soft, bouncy or sagging floor rather than just a squeak and needs professional attention.
Safety first: before you start
- Critical:Before driving screws, find and avoid pipes, cables, ducts and underfloor heating. Look from below where possible, check heating plans, and use a detector.
- Critical:A soft, springy or sagging floor, or dark stains on the joists, may signal water damage or rot. Don’t just screw it down; get it inspected.
- Wear safety glasses when drilling or working overhead in a basement or crawl space, where dust and debris fall into your eyes.
- In crawl spaces, use a good light, wear gloves and a dust mask, watch for sharp nails, and tell someone you’re down there.
- Wear a dust mask when cutting shims or blocking, and keep hands clear of saw blades.
Tools & materials
Tools
- Drill/driver with bits
- Stud/pipe/wire detector
- Tape measure and pencil
- Hammer
- Caulking gun
- Handsaw (for blocking)
- Torch/flashlight
- Safety glasses and gloves
Materials
- Wooden shims
- Construction adhesive or wood glue
- Wood screws, 32-40 mm (1-1/4 to 1-5/8 in), shorter than the floor thickness when fixing from below
- Offcuts of timber the same size as the joists (for blocking)
- Floor squeak repair kit with break-off screws (for carpet or wood floors from above)
- Wood filler matched to the floor colour
Step-by-step fix
- 1
Find the squeak
Walk slowly over the floor to find the exact spot. Have someone walk on it while you listen or watch from below, if you have access. Mark the spot on the floor with tape. Find the nearest joist using a stud finder, or by looking for nail lines in the floor. Joists are usually spaced about 40 cm (16 in) or 60 cm (24 in) apart.
- 2
From below: shim the gaps
Where you can see a gap between a joist and the subfloor, apply a little construction adhesive or wood glue to a thin wooden shim and tap it gently into the gap. Stop once it is snug. Driving it too hard pushes the floor up and can make a new bump or squeak.
- 3
From below: glue longer gaps
For gaps running along a joist, run a bead of construction adhesive along both sides of the joist where it meets the subfloor. It fills the gap and bonds the two together. Let it cure fully before judging the result.
- 4
From below: add blocking or screws
Where the subfloor still flexes, cut a length of timber, glue its top edge, press it up tight under the subfloor against the side of the joist, and screw it to the joist. You can also drive short screws up through the subfloor into the floorboards to pull them down, using screws short enough that they can’t come through the finished floor.
Warning: Measure the total floor thickness before choosing screws, and check for pipes and cables on both sides of the joist.
- 5
From above through carpet: use a squeak repair kit
Locate the joist and use the kit’s depth-control fixture to drive the special screw through the carpet and subfloor into the joist. The screw head snaps off below the surface, and the carpet pile covers the spot. Drive two or three screws around the squeak.
Warning: Check first for heating pipes, cables and ducts under the floor. Screws going through carpet can hit hidden services.
- 6
From above on wood floors: use trim-head screws
On exposed wooden floorboards, drill a small pilot hole through the board at an angle into the joist, then drive a slim trim-head screw until its head sits just below the surface. Fill the hole with matching wood filler. Many squeak repair kits also include versions for hardwood floors.
Tip: Drive screws in pairs angled toward each other for a stronger hold.
- 7
Quiet rubbing between boards
For boards rubbing at their edges, work a little talc or powdered graphite into the joints with a soft brush and walk over them. It’s a temporary fix but often quiets minor squeaks.
- 8
Tile and concrete floors
Squeaks or clicks on tiled floors usually mean a loose or hollow tile, or subfloor movement below the tile. Tap tiles with a coin handle; a hollow sound means the tile is loose. Loose tiles need to be reset with fresh adhesive, and cracked grout or moving tiles can let water in. See the cracked grout guide, and call a professional if large areas are hollow.
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How to check it's fixed
- Walking on the marked spot no longer makes noise
- The floor feels solid without movement or springiness
- No screw heads or bumps are visible or can be felt through the carpet
When to stop and call a professional
- The floor feels soft, springy or sags, or you can see water stains or rot on the joists
- You find termite damage, cracked joists or joists that have split
- Floor squeaks come with sloping floors, cracks in walls or sticking doors
- Underfloor heating, pipes or cables are present and you can’t locate them safely
- Large areas of tiles sound hollow or are moving
How to prevent it
- Keep indoor humidity fairly steady to reduce wood shrinking and swelling.
- Fix plumbing leaks quickly so water doesn’t reach the subfloor.
- Use glue and screws, not just nails, when laying or repairing subfloors.
- Keep crawl spaces dry and ventilated.
Frequently asked questions
Can I fix a squeaky floor without removing the carpet?
Yes. Squeak repair kits use special screws that go through carpet into the joist and snap off below the surface. The carpet pile hides the spot. Check for pipes and cables first.
Why is my floor squeakier in winter?
Heating makes indoor air drier, so timber shrinks and small gaps open between the floor and joists. Squeaks often ease in more humid months.
Is a squeaky floor a structural problem?
Usually not. Most squeaks are just wood rubbing on wood or nails. A floor that feels soft, bouncy or sags, or has water staining, is more serious and should be inspected.
Should I use nails or screws?
Screws. Nails can work loose again with the same movement that caused the squeak. Screws, ideally with construction adhesive, hold the floor tightly to the joist.
How do I avoid hitting pipes under the floor?
Look from below if possible, check where plumbing runs to kitchens and bathrooms, scan with a detector, and ask about underfloor heating. Keep screws to the centre of joists and use the shortest screw that holds.
This guide is general information, not professional advice. Homes differ, so follow your product manuals and local codes. If anything looks different from what's described, or you feel unsure, stop and call a qualified professional. In an emergency, leave the area and call your local emergency number.
Related guides
Cracked grout
Safe to DIYYes, regrouting is a safe and satisfying DIY job. Wear eye protection and a dust mask when removing old grout. Loose, hollow-sounding tiles or a soft floor point to water damage underneath and need a professional.
Squeaky door
Safe to DIYYes, this is one of the easiest and safest home repairs. The only real risks are a heavy door dropping if you pull every pin at once, and oily drips on floors and carpets.
Nail pops
Safe to DIYYes, fixing a few nail pops is an easy, safe job. Check for wires and pipes before driving screws, use a stable ladder for ceilings, and test for asbestos in older homes before sanding. Widespread cracking or a sagging ceiling needs a professional.
Ceiling water stain
DIY with precautionsCovering a dry, stable stain is a safe DIY job. Finding the leak is the real work, and a sagging, bulging or dripping ceiling is a stop sign: keep people away and get help, because wet ceiling boards can collapse.