When Sound Becomes Noise: A Guide to Soundproofing Noise in Modern Homes

We all have to live with a certain amount of noise within our lives, but when this escalates, we all suffer and start looking for a solution. Pinnacle Sound has grown considerably over the years, because now more than ever, a lot of homes, businesses and places of recreation are experiencing noise. The phone calls we receive every week tell the same story. People who once felt comfortable in their own homes are now lying awake at night, working from kitchen tables because the home office is too loud, or avoiding rooms that share a wall with a neighbour. Soundproofing noise isn't a luxury anymore. For many families, it has become a necessity.

Why Soundproofing Noise Has Become So Important

There are a few reasons why noise complaints have shot up in the last decade. Homes are being built closer together. Open plan living means sound travels further inside the property. Working from home has put us in our houses for far longer hours than ever before, and we're noticing things we used to be away from for eight or nine hours a day. On top of all that, modern lightweight building methods just don't block sound the way the older, heavier traditional builds did.

Within new builds in particular, dot and dab is the cause of a lot of noise through untreated flanking paths, most builders are not aware of, but the consequences for new home owners is sometimes unbearable. Unfortunately, we hear this far too often. Families move into a brand new home expecting peace and quiet, and within a few weeks they realise they can hear every footstep, every conversation and every television set from next door.

What Dot and Dab Actually Is

Dot and dab is used to explain a common process within the building industry. The adhering of plasterboards to party walls in this way is fast and inexpensive, allowing projects to be finished quickly and more cost effectively. A builder simply applies blobs (or "dabs") of adhesive to the back of a plasterboard sheet, presses it onto the blockwork, and moves on. The job that might take a plasterer two days with traditional wet plaster is done in a few hours.

From a commercial standpoint, you can see why it's popular. From an acoustic standpoint, it's a disaster.

In our experience as sound insulation contractors, dot and dab is the main cause of the problems we uncover. Flanking paths behind these dot and dab plasterboard applications create real problems for homeowners. Builders, developers and architects focus on the cost, speed, finish and aesthetics of a build, but they rarely consider how the build is going to sound once people are living in it.

The Hidden Cavity Behind Your Wall

Here's the part most homeowners don't realise. When a plasterboard is dot and dabbed onto a blockwork party wall, it isn't sitting flush against the block. The dabs of adhesive create a gap between the back of the board and the wall behind it. That gap is usually somewhere between 10 mm and 25 mm of trapped air.

What you've effectively built is a drum. Sound waves hit the plasterboard on one side, the trapped air pocket vibrates, the energy is amplified by the cavity, and then it's passed straight through to your room. Acousticians sometimes call this the "drum effect," and once you understand it, you can never un-hear it.

So in an apartment block, if you can hear your neighbours above on their phones, watching their TVs or talking, this can be very annoying. It isn't necessarily the fault of your neighbours, rather the lack of sound insulation in the homes or the dot and dab applications creating flanking issues. They are simply living their lives. The wall is doing the broadcasting.

What Are Flanking Paths and Why Do They Matter

When we talk about soundproofing noise, most people picture sound going straight through a wall. The reality is more complicated. Sound is energy, and energy will always find the easiest route. If the wall itself is reasonably solid, the noise simply travels around it instead, through floors, ceilings, skirting boards, electrical sockets, junctions between walls, and yes, through the air gap behind dot and dab plasterboard.

These indirect routes are what we call flanking paths. They are the reason you can spend thousands on upgrading a single wall and still hear your neighbours afterwards. If the flanking paths haven't been addressed, the sound just goes around your new wall like water flowing around a rock in a stream.

Dot and dab creates the perfect path for the energy, and forces sound to travel along, causing you to hear things you would rather not. Unfortunately, when you hear noise you cannot just not hear it. Once your brain has tuned in to your neighbour's TV at 10pm, every evening becomes a waiting game.

How Bad Can It Really Be

We've been into properties where the homeowners can recite their neighbour's dinner conversations. We've seen young parents put babies to bed in nurseries, only for the baby to be woken every time next door uses the stairs. We've visited home offices where Zoom calls have to be paused because the neighbour's washing machine starts spinning. These aren't extreme cases. These are typical of the issues we deal with week in, week out, in new builds across the country.

In the worst examples, families end up sleeping in living rooms, selling up at a loss, or living in a constant low level of stress that affects their health. Noise is not just an inconvenience. Long term exposure has been linked to raised blood pressure, poor sleep quality, anxiety and reduced concentration. Soundproofing noise properly isn't about being fussy. It's about reclaiming your home.

What Building Regulations Say (and Where They Fall Short)

Under Part E of the Building Regulations, party walls in new homes are required to meet a minimum acoustic performance. On paper, that should give homeowners confidence. In practice, pre-completion sound testing is often only carried out on a sample of plots, and the regulations set a minimum floor, not a comfortable standard for everyday living. A wall can technically pass the test and still let through enough noise to make life miserable.

This is why so many new build owners contact us within the first year of moving in. The legal box has been ticked. The reality of living in the house tells a very different story.

How We Approach Soundproofing Noise at Pinnacle Sound

Every property is different, so the first thing we do is listen. Not just to what you can hear through the wall, but to where you can hear it, when, and what type of noise is causing the most distress. Low frequency sounds like bass from a TV or a washing machine drum need a very different approach to high frequency airborne sounds like voices.

A typical solution on a dot and dab party wall involves stripping the existing plasterboard back, treating the flanking paths at the floor, ceiling and adjoining walls, and then building up a properly decoupled wall system using mass, damping and isolation. Done correctly, the difference is genuinely life changing. Customers often tell us they had forgotten what silence sounded like.

What we never do is fit acoustic products on top of dot and dab and hope for the best. It is a common mistake, and a costly one. If the underlying flanking path isn't dealt with, the noise will keep finding its way through.

What to Do If You Think You Have a Dot and Dab Problem

If any of this sounds familiar, a few simple checks can give you an idea of what you're dealing with. Tap the party wall in different spots. If it sounds hollow in places, there's a good chance it's dot and dabbed onto blockwork. Listen to where the noise feels strongest. Is it coming through the wall itself, or down through the ceiling and back up through the floor? Is it worse at certain times of day, with certain types of sound?

The honest answer is that diagnosing flanking properly takes a site visit. Photos and descriptions only get us so far. Once we're on site, we can identify the routes the sound is taking and put together a plan that actually solves the issue rather than masking it.

Quiet Is Worth Investing In

Soundproofing noise properly is not a small job, and we won't ever pretend otherwise. But the cost of doing it right, once, is almost always less than the cost of living with the problem for years, trying half measures that don't work, or eventually selling a home you should have loved.

If you're hearing things in your home you'd rather not, we'd be happy to come and have a look. The first step is just a conversation. Tell us what you're hearing, when you're hearing it, and we'll take it from there.

Get in touch with Pinnacle Sound for a no obligation site visit and an honest assessment of your noise problem.