Piano Storage During a House Rewire or Damp Treatment | PianoStorage

A full house rewire tends to be underestimated until it is underway. Electricians lift floorboards in every room to run cables, drill through joists and ceiling plaster, and chase channels into walls for conduit and back-boxes. The disruption spreads through the whole property rather than being contained to a single room. Damp treatment, whether chemical injection into external walls or surface tanking, brings a different set of problems: plaster opened up and re-rendered, months of drying required, and often industrial dehumidifiers running throughout. A piano that is in the property while either of these jobs is running is in a more exposed position than it might look.

What a rewire does to a piano's surroundings

The characteristic features of a rewire are fine dust and sustained vibration across the whole building. Chasing cables into walls means angle grinding and chiselling through plaster and masonry. Lifting and relaying floorboards adds wood dust to the mix. SDS drills punching cable routes through joists produce vibration in the structural frequency range that travels through floors and walls to wherever the piano is standing. There is no room that is genuinely outside the vibration zone when a crew is working in a two-storey property.

The dust produced by a rewire is particularly fine. Plaster and masonry particles at this scale pass through covers and gaps in the piano case, settling into the action mechanism. The felt bushings that guide each key, the hammer felts, the cloth on the dampers: all of them can be compromised by particles that build up imperceptibly over the weeks a rewire takes. The result is a touch that is subtly changed, keys that develop inconsistent weight or response, and a mechanism that a tuner will note but cannot fully address on a standard visit.

Tuning is also affected. Structural vibration from drilling and hammering throughout the property works gradually into the tuning pins. The friction that holds each pin in the pinblock is a precise and fragile thing. Repeated vibration at the right frequencies, day after day over a multi-week rewire, loosens that grip in small increments. A piano that was in good tune before the electricians arrived will need more than a single tuning session to recover afterwards.

Damp treatment: a humidity problem in two stages

Chemical injection damp-proofing requires drilling into external walls to inject a waterproofing cream, followed by rendering the affected surfaces with new plaster. That plaster contains a significant amount of moisture. A newly plastered wall releases water vapour into the surrounding air for weeks and sometimes months as it cures, pushing relative humidity in the property well above the 45 to 55 percent band that wood and felt are designed to tolerate.

Once the plaster is on, contractors typically run dehumidifiers and fan heaters to accelerate the drying. The same room that had high humidity during the wet plaster stage now runs at very low humidity as the equipment strips moisture from the air. For a piano in the same building, the effect is the soundboard, glue joints and action components being pushed toward high moisture content and then pulled sharply back toward low. That cycling is more damaging than either extreme held steadily, because wood responds to the change in both directions. Shrinking and swelling, repeated and alternated, is the mechanism that loosens glue, opens splits and stresses the bridge.

Why there is nowhere safe in the property

The instinct is to move the piano to the room that seems least affected and leave it there. On a rewire, that room does not exist. Cables have to reach every socket and light fitting in the property, which means every room eventually gets its floor lifted or its ceiling drilled. Even in rooms where the electricians finish quickly, the dust, the vibration and the open-building humidity are not contained. Air moves through a property and so does vibration through shared structure.

Damp treatment in a terrace or semi-detached property similarly affects walls on multiple sides of the house. The piano may be sitting against an internal wall that feels dry and removed from the work, but it is breathing the same air as the rooms where plaster is being applied and dehumidifiers are running.

For a project that is going to run for more than a few weeks, and both rewiring and damp treatment routinely do, removing the piano from the property before work starts is the cleaner decision. The instrument leaves in good condition and comes back when the property is finished, rather than spending the project accumulating damage that may not be fully repairable.

Arranging collection and return

Specialist piano crews collect from your current address before the project starts. The piano is wrapped in fitted transit covers, moved in purpose-built vehicles with a liftgate and internal padding, and held in a climate-controlled facility at steady temperature and relative humidity throughout the project. It is not in a dusty, vibrating building. It is not breathing air that swings with a dehumidifier cycle. It is in the same conditions week after week until you are ready for it back.

The most straightforward time to book collection is a week or two before the electricians or damp contractors are due to arrive. Each postcode area has a scheduled collection day each week, so booking in advance secures the right slot. If work has already started and the piano is still in the property, we can still arrange collection: contact us with the postcode and access details and we will confirm the next available day.

• Climate-controlled facility holds temperature and humidity steady throughout the project
• Specialist piano crews collect and re-deliver, not a general removals team
• Full insurance from collection through to re-delivery
• No fixed term: storage runs for as long as the rewire or treatment requires
• Stair access is priced clearly in the booking so there are no surprises on the day
• Part of the Pianospeed Group, with crews experienced on all instrument types and sizes

When the property is finished, wait until new plaster has had a chance to dry properly before arranging re-delivery. Fresh render needs time to cure and stabilise humidity even after the visible drying is complete. A week or two of normal heating and ventilation after the work is genuinely done is a reasonable interval before booking the piano's return. Re-delivery goes to whatever address you choose, positioned where you want it, by the same specialist crew.