Professional wood repair

Knots and cracks. Gone for good.

Knot Filler melts into the damage, hardens in seconds, and takes any finish. The system flooring pros and carpenters already trust. Now shipping in the US.

Shop Wood RepairHow it works

Flexible · Water-repellent · Non-toxic · Takes any finish

After repair
Before repair
Before After
4.82 / 5 1,000+ verified reviews of Wood Repair across the World
  • ★★★★★

    Simply excellent quality. Always happy to order again.

    Uwe B.
  • ★★★★★

    Excellent quality. Highly recommended.

    Fred S.
  • ★★★★★

    Super fast shipping. Very satisfied, definitely ordering again.

    Rudi C.
  • ★★★★★

    Flawless and speedy delivery. Gladly again.

    Nicola L.
  • ★★★★★

    Everything handled smoothly, as always.

    Ulf J.

How it works

From damage to done in five steps.

  1. 1

    Fill

    Melt the filler straight into the crack.

    Fill 1 / 5
  2. 2

    Cool

    Press it flat with the cooling brick. It sets in seconds.

    Cool 2 / 5
  3. 3

    Cut

    Shave the excess off flush.

    Cut 3 / 5
  4. 4

    Sand

    Sand it smooth.

    Sand 4 / 5
  5. 5

    Finish

    Oil, stain or varnish. The repair vanishes.

    Finish 5 / 5

See it in action

Watch Knot Filler at work.

A short look at the full repair — from raw crack to invisible finish.

Why Knot Filler

Built to hold. Made to vanish.

  • Stays flexible

    Moves with the wood instead of cracking out.

    Stays flexible

  • Hardens in seconds

    Minimal downtime, minimal waste on the job.

    Hardens in seconds

  • Water-repellent & UV-stable

    Rated for indoor and outdoor repairs.

    Water-repellent & UV-stable

  • Non-toxic

    Solvent-free. Safe for you and the room.

    Non-toxic

  • Takes any finish

    Oil, stain or varnish. It disappears.

    Takes any finish

  • Every wood tone

    A color match for all species and grains.

    Every wood tone

Complete kits

Start with everything you need.

Shop all Wood Repair →
Wood Repair PRO Cordless Kit PRO

Wood Repair PRO Cordless Kit

Cordless gun, filler mix and every tool you need. Built for daily pro use.

Cordless gun · Mix bag (8 sticks) · Cooling iron + brick · Cutting tool · Saver

$389.00
Wood Repair Plus+ Kit PLUS+

Wood Repair Plus+ Kit

The WR 180 gun, 16 sticks in 8 colors, and the tools. For installers and serious DIY.

WR 180 gun · 16 sticks / 8 colors · 2x cooling brick · Cutting tool · Saver

$269.00

Cordless freedom

Runs on the batteries you already own.

One adapter and the PRO Cordless gun runs on your 18V packs. DeWalt, Bosch, Makita, Milwaukee. No new batteries, no extra chargers.

Wood Repair cordless gun on a DeWalt battery
Shown on an 18V DeWalt battery
  • DeWalt 18V
  • Bosch 18V
  • Makita 18V
  • Milwaukee 18V
The gun is a one-time buy. The sticks keep your jobs moving.

Refills · the consumable

Match any grain. Reorder in seconds.

Sticks are the heart of the system. Eight tones, mixed on the iron to match any wood. Keep a few bags on the shelf and the next repair is already handled.

$29.99 / bag · Knot
Also in 150 mm Compact — $24.99 →Subscribe & save — coming soon
Knot Filler sticks
8 tonesMix to matchHardens in secondsIndoor + outdoor

For the trade

A pro partner in Virginia and the Carolinas.

We supply Wood Repair to installers, cabinet shops and contractors across Virginia and the Carolinas. Fast US shipping, trade pricing for accounts.

  • Volume pricing
  • Ships from the USA
  • Same-day dispatch
  • Account support
Talk to us about trade pricing
  • VA Virginia →
  • NC North Carolina →
  • SC South Carolina →