A guitar does not wear out from being played: it wears out from being badly looked after. Dead strings, a grimy fretboard or a too-dry winter do more damage than ten years of daily practice. The good news: routine maintenance takes ten minutes a month, a handful of accessories costing under €30, and no luthier’s skills. Here are the things that matter, in the order they matter.

Strings: routine number one

This is the most rewarding maintenance there is. New strings instantly give an instrument back its brightness, its intonation and its comfort: plenty of “tired” guitars need nothing else.

When to change? Every 2 to 3 months with regular playing, or as soon as you notice one of these signs: a dull tone that no longer holds pitch, black marks under the fingers, rust or roughness to the touch. Strings rarely break by surprise; they die slowly, and the ear gets used to it — hence the spectacular effect of a change.

How to change? One string at a time, to keep the tension on the neck roughly constant. Cut the excess flush at the tuner, aim for two or three clean winds, and gently stretch each new string by pulling on it at its midpoint before retuning: you will gain days of tuning stability. Take the opportunity to get yourself a decent tuner: our tuner comparison covers every budget.

Which gauge? Stick with the guitar’s original gauge while you are starting out: changing it alters the tension on the neck and may call for a setup. Wiping the strings with a microfibre cloth after every session remains the best way to extend their life.

Cleaning the body and the fretboard

The body is happy with a dry microfibre cloth after every session, and a guitar-specific polish twice a year. Two prohibitions: household products (their solvents are aggressive towards finishes) and silicone, which would complicate any future finish repair at a luthier’s.

The fretboard deserves real attention at every string change, with the strings off. On a rosewood or ebony fretboard (unfinished), gently rub the grime built up along the frets with a barely damp cloth, then feed the wood with a few drops of fretboard lemon oil, wiped off straight away: once or twice a year is enough. On a finished maple fretboard, a plain dry cloth does the job: never oil.

The hardware (bridge, tuners, saddles) cleans up with a dry cloth. If your sweat is acidic, this one-minute routine after each session prevents the corrosion that seizes saddles and tarnishes tuners.

Humidity: the invisible enemy of acoustics

Solid wood lives with the surrounding air, and that is the weak point of acoustic guitars — including the mid-range instruments we recommend in our comparison of beginner acoustics. The comfort zone lies between 45 and 55% relative humidity.

Below 40% (typically a heated flat in midwinter), the top dries out, sinks, and can crack; fret ends suddenly protruding from the edge of the fretboard are the first symptom. Above 60%, the wood swells, the action rises and the sound goes muffled. Two accessories settle the question: a hygrometer in the room (under €15) and a case humidifier in winter. Electric guitars, made of thicker wood and often finished all over, are noticeably less sensitive, but not immune to extremes.

A corollary: spare every guitar from thermal shock. A guitar that has travelled in a boot in midwinter should acclimatise for an hour in its case before you open it.

Setup: what you can do yourself

The action (string height above the frets) governs playing comfort. Too high and the guitar tires your fingers; too low and the strings buzz. On an electric it is adjusted at the bridge saddles, in small steps, retuning each time. On an acoustic, the job means sanding the bridge saddle: leave that to a luthier.

The truss rod (the metal rod that counterbalances string tension inside the neck) corrects neck relief, not the action directly. The golden rule if you take it on: a quarter-turn maximum, wait for the wood to react, reassess. Tighten clockwise to straighten a neck with too much relief, loosen anti-clockwise to give relief back to one that is too flat. At the slightest doubt, leave it alone: a forced truss rod is an expensive repair.

Intonation (pitch accuracy up the neck, set at the twelfth fret on an electric’s saddles) is checked with a precise tuner, ideally in strobe mode. If chords sound in tune down the neck and out of tune higher up, that is what to look at.

Storage and transport

The rule fits in one sentence: a guitar lives well where you live well. Avoid the attic, the cellar, the car in summer, the top of a radiator and a south-facing window. On a stand or on the wall it is comfortable in a temperate room; in its case with a humidifier it gets through winter unscathed. There is no need to slacken the strings for everyday storage: the neck is made for that tension. Slacken by a tone only before a flight in the hold or storage lasting several months.

When to go to a luthier

Some jobs belong to a professional, and their cost is reasonable given the service rendered. A full setup (action, truss rod, intonation, nut and saddle) typically costs between €40 and €80 and transforms most guitars, new ones included: it is the best possible “upgrade” under €100. Get advice without delay for: a crack in the wood, a nut needing recutting, worn or protruding frets, a neck that moves despite a careful truss rod adjustment, or any electronics that crackle persistently.

A well-maintained instrument is also an instrument you know: ten minutes of cleaning a month is the best opportunity to spot early what is going wrong.