Quieter elevators: reduce noise, vibrations, and structure-borne noise – soundproofing that works

Elevators are an essential part of modern buildings, but they can also be one of the most disruptive sources of noise in a building.
Noise from the elevator shaft is often perceived as a dull hum, squeaking, or vibrations that travel through walls, floors, and joists.
Especially in residential apartments, hotels, offices, and hospitals, elevator noise can affect comfort, sleep, and the ability to work in peace—even when the elevator isn’t actively in use.

What makes elevator noise particularly problematic is that it often consists of low-frequency vibrations and structure-borne noise that travel deep into the building’s structure.
Motors, cables, guide rails, and the movements of the elevator car create vibrations that are easily transmitted to the elevator shaft walls and further into adjacent rooms.
Without proper sound insulation, the entire building can act as a resonance chamber where sound is amplified rather than dampened.

Therefore, effectively soundproofing an elevator shaft requires more than a single measure.
An effective solution is based on a combination of vibration damping, sound barriers, and sound absorption.
By working layer by layer, both airborne sound and structure-borne noise can be reduced in a controlled and sustainable manner.
All tailored to the elevator’s design and the building’s conditions.

In this guide, we’ll walk you through the best ways to soundproof an elevator shaft using proven methods and professional materials.
You’ll get a clear overview of where sound originates, how it spreads, and which solutions deliver real results.
The goal is to create quieter elevators, more peaceful homes, and a better acoustic environment for everyone in the building.

Here are some benefits of soundproofing elevator shafts

Reduced disruptive elevator noise
Soundproofing elevator shafts reduces both airborne noise and structure-borne noise from the elevator’s motor, cables, and movements.
This prevents humming, scraping, and thumping sounds from spreading into apartments, offices, or common areas.

Improved living comfort and well-being
Disturbing elevator noise can be particularly stressful, especially in bedrooms, living rooms, and workspaces adjacent to the elevator shaft.
Soundproofing the shaft creates a quieter and more pleasant indoor environment for residents and users.

Less structure-borne noise between floors
Elevator noise often travels through the building’s structure and can be heard several floors away.
With the right sound insulation, vibration pathways are broken, reducing sound transmission through walls, floors, and joists.

Improved sleep and a quiet work environment
In residential and office environments where elevator shafts are located near bedrooms or workspaces, sound insulation can make a significant difference.
When recurring elevator noises are dampened, it becomes easier to sleep undisturbed, work with concentration, and spend time in the room without stress.

Enhanced property standards and value
A property with good acoustic comfort is perceived as better built and more thoughtfully designed.
Addressing elevator noise contributes to higher quality of living, fewer complaints, and can increase the property’s attractiveness and long-term value.

Effective solution without altering the elevator system
Soundproofing of elevator shafts can usually be performed without affecting the elevator’s function or operation.
This means the noise problem can be solved without making changes to the elevator itself, which is both cost-effective and safe.

Reduced noise stress in common areas
In stairwells, entrances, and corridors, elevator noise can be amplified by hard surfaces.
By combining sound insulation and sound absorption in and around the elevator shaft, quieter and more pleasant acoustics are created throughout the building.

Step-by-step: How to soundproof an elevator shaft – solutions for quiet elevators

Elevator noise is often particularly difficult to eliminate because it consists of both:

- structure-borne sound (vibrations that travel through the building)
- airborne sound (hum and mechanical noises that leak into rooms and stairwells).

To achieve real results, you therefore need to work systematically and treat the elevator shaft as a complete sound path—from source to propagation.
Here is a clear and practical step-by-step guide.

Step 1: Identify where the sound originates and where it is most audible

Start by documenting when the sound occurs: at start/stop, during operation, at floor stops, or when the doors open. Listen in several areas:

– In apartments/offices located right next to the shaft.
– In stairwells, hallways, and entryways.
– Above and below the floor where the elevator is perceived as most disruptive.

This makes it easier to determine whether you primarily have a problem with structure-borne noise, airborne noise, or a combination of both.

Step 2: Start by reducing vibrations where they originate

Structure-borne noise is often the main culprit in elevator problems. Vibrations from the motor, guide rails, and mountings can cause the entire building to “carry” the sound.
The goal is to reduce how easily the structure can start to resonate.

– Apply SilentDirect Polaric to surfaces that tend to vibrate and amplify sound, such as thin sheet metal surfaces or panel structures around the shaft.
– Use SilentDirect Neo as a softer intermediate layer where you want to decouple and reduce vibrations at contact points.
– On and around studs, both Polaric and SilentDirect Seal 50/4mm can be used.

This step is about reducing the “grip” of vibrations in the building’s frame before continuing construction.

Step 3: Install absorption behind barriers to reduce resonance

When sound is stopped by a barrier, there is a risk that it will instead bounce around in cavities and structures. Therefore, absorption is needed to “calm” the sound.

– Install SilentDirect Egg behind the barrier where you have space, for example in cavities or behind a panel structure.
– If space is limited, use SilentDirect Neo as a thinner alternative.

This ensures that sound energy is dampened and absorbed within the structure rather than building up and finding its way out through other paths.

Step 4: Build a sound barrier in the walls facing the elevator shaft

Once the vibrations are under control, you need to stop airborne sound that would otherwise travel straight through the shaft walls and into adjacent rooms.
Here, mass and density are crucial.

– Install SilentDirect MLV as a heavy sound barrier on studs, inside a secondary wall structure, or behind new panel layers.
– Ensure the barrier covers large, continuous surfaces to avoid weak points.
– Keep in mind that a barrier works best when installed without unnecessary gaps or interruptions.

MLV reduces sound transmission and makes the elevator’s hum and mechanical noises significantly less noticeable in adjacent rooms.

Step 5: Seal all joints and penetrations – otherwise sound will leak out

Elevator shafts often have penetrations, joints, and connections that can act as sound leaks. Even small openings can cause major problems.

– Seal around penetrations and joints with SilentDirect Seal where it fits as an elastic seal.
– Pay special attention to connections to walls, ceilings, doorways, and service openings.
– The goal is to prevent airborne sound from finding “shortcuts” out into the building.

This seals the structure and prevents sound leakage from occurring.

Step 6: Soundproof stairwells and hallways for a lower perceived noise level

Even if you insulate the shaft itself, sound may be perceived as louder in stairwells and corridors due to echoes and reverberation.
Here, sound absorption is a crucial comfort measure.

– Install SilentDirect PES Ceiling on ceilings to reduce reverberation in stairwells and entryways.
– Complement this with SilentDirect PES Wall on wall surfaces where sound is highly reflective.
– For a more aesthetic look, the PES Fabric variants can be a good option.

This makes elevator noise seem softer and less intrusive, even though the sound source remains the same.

Step 7: Test the effect and fine-tune

Once the measures are in place, you should test again at different times of the day and under varying loads. Listen for:

– Has the hum decreased in adjacent rooms?
– Have vibrations and “thumping” decreased in the structure?
– Have stairwells and hallways become quieter?

Often, small adjustments have a big impact, such as adding extra sealing at a joint or installing additional sound absorption on a hard surface.

Products that are effective for soundproofing elevator shafts

To effectively soundproof an elevator shaft, you need materials that address structural noise, airborne noise, and reverberation.
Listed below are products that work best in each stage of soundproofing—from source to transmission.

SilentDirect Polaric – vibration damping and resonance control

SilentDirect Polaric is a heavy damping mat with a butyl core that dampens structure-borne noise and vibrations in the shaft’s structure.
The product is used to make surfaces and sheet metal components more stable and less prone to amplifying noise and resonance.
Polaric works particularly well as a first layer against the parts of the structure that otherwise vibrate the most.

SilentDirect Neo – flexible vibration and sound damping

SilentDirect Neo is a smooth, vibration-damping mat made of NBR rubber that functions both as vibration insulation and as an absorber in confined spaces.
Neo is often used where space is limited or where you want to provide a softer intermediate layer between the structure and the barrier/absorber.

SilentDirect Dampio – point vibration damping

SilentDirect Dampio is ideal for point vibrations where sound is transmitted through specific contact points, such as under motor mounts, screws, or fasteners in the elevator shaft frame.
Dampio helps break resonance at these critical points.

SilentDirect MLV – heavy sound barrier against airborne sound

SilentDirect MLV (Mass Loaded Vinyl) is a heavy and flexible sound barrier used to block airborne sound from elevator machinery, motors, and mechanical components. The product is installed in the shaft walls or in built-up barrier structures to significantly reduce sound transmission to adjacent rooms.

SilentDirect Egg – Absorber for Resonance and Reflection

SilentDirect Egg is a high-density sound absorber with a patterned surface that effectively captures sound energy in cavities or behind barriers.
Egg is used to reduce resonance and sound reflections that can otherwise amplify noise within the structure.

SilentDirect Seal – elastic sealing strip

SilentDirect Seal is a flexible seal used to seal joints, penetrations, and openings in the elevator shaft structure.
Sound often takes the easiest route out, which frequently becomes a problem when there are many leaks.
By sealing gaps, you prevent sound from escaping through cracks around cables, panels, or pipes.

SilentDirect PES / PES Fabric – acoustic absorbers for rooms

SilentDirect PES and SilentDirect PES Fabric are sound absorbers for walls or ceilings in stairwells, corridors, and common areas where elevator noise is heard.
PES Fabric is a fabric-covered option that both absorbs sound and provides a more aesthetically pleasing appearance.

By combining these products in the right way, you create a soundproof elevator shaft that both dampens disruptive noise and improves comfort throughout the building.

Did you know that…

Many people feel that elevator noises “come out of nowhere,” even though the elevator shaft is several meters away.
This is because elevators often generate structure-borne noise —vibrations that travel through the building’s load-bearing structure.
The sound then travels through walls, floor joists, and columns and can appear far from the elevator itself.

An elevator shaft can act as a vertical sound channel.
When sound and vibrations are not dampened in the shaft, they can spread between floors, which means that the noise is sometimes louder higher up in the building than right next to the elevator.

Small details often make a big difference. A single unsealed opening for cables or pipes in the elevator shaft can let through a surprising amount of sound.
In fact, sound prefers to travel through a small gap rather than through a thick wall—which is why sealing is just as important as the sound insulation itself.

Reverberation also plays an unexpectedly significant role. In stairwells and hallways, hard surfaces can amplify elevator noise so that it is perceived as significantly louder than it actually is.
When reverberation is dampened, the elevator noise is often perceived as both shorter and softer, even though the sound source remains the same.

The most effective results are almost never achieved with a single measure.
Only when vibrations are dampened, airborne sound is blocked, and resonance is absorbed in several stages does that distinct difference emerge that makes the elevator feel significantly quieter.