Found a Crack in Your Acoustic Guitar? What to Do Right Now
Most acoustic cracks are caused by dry air, and most are very repairable - if you handle them right in the first few days. The key is to stop the crack spreading, keep it clean, and get it to a repairer. Here's what to do and what to expect.
Editorial guide built from manufacturer instructions and specs - not hands-on testing. Product cards link to Amazon; we never show Amazon prices here.
Quick answer
Loosen the strings to take tension off, don't touch or press on the crack (skin oils make it harder to glue), and don't try superglue or wood glue. Put the guitar in its case with a humidifier if the crack is from dryness, and book a repair luthier soon. Simple cleated top cracks typically cost around $150-250 at published shop rates; finish touch-up is extra.
Take the lesson finder quiz
Prices last checked: Oct 2026 where a verified price is shown on a card - confirm at checkout. Editorial from published facts, not hands-on testing: How we rate.
Step by step: the first 48 hours
- Slacken the strings so the crack isn't under load - especially if it's near the bridge.
- Don't run your finger over it or press it. Premier Guitar notes oils from your skin get into the crack and make a clean glue joint harder.
- Don't glue it yourself. Glue in the wrong place, or the wrong glue, makes a proper repair harder and more expensive.
- Keep it in its case with a humidifier if the room is dry - many dryness cracks close partly as the wood rehydrates, and luthiers often humidify a crack closed before gluing.
- Photograph it and note its length and where it is (top, back, side; near the bridge or soundhole).
- Book a repair luthier soon - fresh cracks are easier to repair than old ones.
How serious is it?
| Type | What it means |
|---|
| Finish crack only (no gap in wood, often fine lines) | Usually cosmetic; caused by temperature change. Have it checked. |
| Top or back crack along the grain | The most common dryness crack. Usually cleated and glued. |
| Crack near or behind the bridge | Can be structural; slacken strings and get it checked promptly. |
| Lifting bridge, bulging top or cracked neck/headstock | Structural - stop playing it and see a repairer. |
What it costs (published shop rates, Oct 2026)
Prices vary by shop, guitar and crack. Examples from published price lists:
- Chicago Fret Works: $175-250 including cleats; finish touch-up from $50.
- The Village Luthier: $150-250; touch-up from $50.
- KC Fret Shop: $150-200 for a crack behind the bridge; they note humidifying a crack before repair can take a week or more.
- Brothers Guitar Shop: from $300.
Old, dirty or open cracks may need a splint (a sliver of wood) and more finish work, which costs more.
Prevention: humidity
Cracks usually come from dry air - heated homes in winter, air conditioning, or a guitar stored near a heater. Keep acoustic guitars around 45-55% relative humidity: use a hygrometer, and in dry months keep the guitar in its case with a humidifier. These won't fix a crack, but they help prevent the next one. Compare them in Humidipak vs Humitar.
Illustration - AI-generated, not a photo of the exact product.
Step-upD'Addario Humidipak Maintain Kit
Acoustic owners in dry/heated homes - prevents cracks, sharp frets and sunken tops
No list price listed here - we only publish prices we verified on a manufacturer/retailer page. Check the maker and Amazon for current pricing.
Two-way case humidity controlautomatically maintains 45-50% RH3 packets + pouches (per D'Addario)
Maker/retailer source for the price & specs above (citation, not a buy link): D'Addario
See price on Amazon
As an Amazon Associate, FretCompare earns from qualifying purchases. Price shown only on Amazon.
Illustration - AI-generated, not a photo of the exact product.
StarterMusicNomad The Humitar Acoustic Guitar Humidifier (MN300)
Simple soundhole humidity for an acoustic kept in its case - check and re-wet the sponge regularly in dry months
No list price listed here - we only publish prices we verified on a manufacturer/retailer page. Check the maker and Amazon for current pricing.
Soundhole humidifier: sponge humidifier that rests between the strings over the soundhole (MusicNomad Humitar line)
Maker/retailer source for the price & specs above (citation, not a buy link): MusicNomad
See price on Amazon
As an Amazon Associate, FretCompare earns from qualifying purchases. Price shown only on Amazon.
Illustration - AI-generated, not a photo of the exact product.
StarterKyser Lifeguard Acoustic Guitar Humidifier (KLHA)
Covers the soundhole so moisture stays in the body - a long-running, inexpensive dry-climate safeguard
No list price listed here - we only publish prices we verified on a manufacturer/retailer page. Check the maker and Amazon for current pricing.
Soundhole humidifier covering the soundhole to hold case humidity (Kyser Lifeguard line)
Maker/retailer source for the price & specs above (citation, not a buy link): Kyser
See price on Amazon
As an Amazon Associate, FretCompare earns from qualifying purchases. Price shown only on Amazon.
Prices last checked: Oct 2026 where a verified price is shown on a card - confirm at checkout. Editorial from published facts, not hands-on testing: How we rate.
Safety
- Don't play a guitar with a lifting bridge or a cracked neck under full tension - parts can fail suddenly.
- Never use superglue or household glue on a crack; leave adhesives and clamps to a repairer.
- Don't force a crack closed or press on it.
- Avoid sudden temperature changes - let a cold guitar warm up in its case.
FAQ
Can a cracked acoustic guitar be fixed?
Usually, yes. Most top and back cracks are repairable with glue and cleats, especially if they are fresh and clean.
Should I loosen the strings on a cracked guitar?
Yes. Slacken them to take stress off the crack until it is repaired.
Can I superglue a crack in my guitar?
No. Superglue in the wrong place makes a proper repair harder and more costly. Take it to a repairer.
How much does it cost to fix a crack in an acoustic guitar?
Published shop rates we checked range from about $150-250 for a simple cleated crack, with finish touch-up from about $50 extra. Complex repairs cost more.
Will a humidifier fix a crack?
No, but humidifying can help a dryness crack close before a repairer glues it, and it helps prevent new cracks.
More fix-it and buying guides: Guitars for small hands - Your first pedal - Travel guitars - Clean a guitar body - Are wall hangers safe? - Floyd Rose won't stay in tune - Put on a strap - Sounds bad even when tuned - Acoustic guitar crack - Do you need a case?
Related: Care & humidifiers - How to store a guitar - Humidipak vs Humitar
Sources checked Oct 19, 2026: Premier Guitar crack repair guidance, published repair price lists from Chicago Fret Works, The Village Luthier, KC Fret Shop and Brothers Guitar Shop, D'Addario Humidipak page, current top Google guides. Safety: no DIY gluing; slacken strings; stop playing with a lifting bridge or cracked neck.
ILLUSTRATION
