Why Your New Renovation Smells — And How to Avoid It

You’ve just completed your renovation. Everything looks brand new — but there’s one problem.

That strong “renovation smell.”

Many homeowners assume it’s normal and harmless. But in reality, that smell often comes from chemicals released by renovation materials, and it can linger for weeks or even months if not properly managed.

Here’s what’s really causing it — and how to avoid it in your next renovation.

What Causes the Renovation Smell?

The smell is usually a mix of volatile organic compounds (VOCs) and formaldehyde emissions released from materials used during renovation.

Common sources include:

• Carpentry boards (plywood, particle board)

• Adhesives and glue

• Laminates and finishes

• Paint and coatings

• Sealants used in installation

In Singapore homes, where space is compact and ventilation may be limited, these smells can feel even stronger.

Is It Harmful?

Short-term exposure may cause:

• Headaches

• Eye or throat irritation

• Dizziness

• Sensitivity to smells

Long-term exposure to high levels of formaldehyde is not ideal for health — especially for children, elderly, or those with allergies.

This is why material choice during renovation matters more than many realise.

Why Some Homes Smell More Than Others

Not all renovations produce the same level of smell.

Stronger smells usually happen when:

• Lower-grade boards with higher emissions are used

• Too much built-in carpentry is installed

• Poor ventilation traps the air indoors

• Adhesives and finishes are heavily applied

• The home is occupied too soon after completion

  

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How to Avoid That Strong Renovation Smell

1. Choose Low-Emission Materials (E0 Boards)

Carpentry is one of the biggest contributors.

Using E0 boards significantly reduces formaldehyde emissions compared to standard boards.

This is one of the most effective ways to minimise odour at the source.

2. Use Low-VOC Paints and Finishes

Paint and coatings can release strong chemical smells.

Switch to:

• Low-VOC or zero-VOC paints

• Water-based finishes

These reduce both smell and indoor air pollution.

3. Don’t Overbuild Carpentry

More cabinets = more materials = more emissions.

Instead:

• Build only what you need

• Combine built-in carpentry with loose furniture

• Avoid unnecessary full-wall storage

  
  

4. Ensure Proper Ventilation

Ventilation helps remove trapped chemicals.

After renovation:

• Open windows daily

• Use fans to improve airflow

• Install exhaust fans in kitchen and bathrooms

Good airflow speeds up the release of remaining emissions.

5. Allow Time Before Moving In

One of the biggest mistakes is moving in too quickly.

Even with better materials, some smell is normal initially.

Recommendation:

• Air the house for several days or weeks before moving in

• Do a proper post-renovation cleaning

  
  

6. Consider Air Treatment Solutions

For extra peace of mind:

• Use air purifiers

• Consider formaldehyde removal services

• Add plants that improve air quality

These can help reduce lingering smells faster.

How Long Does the Smell Last?

It depends on:

• Materials used

• Amount of carpentry

• Ventilation

• Weather conditions

With standard materials, the smell may last weeks to months.With low-emission materials and proper ventilation, it can be significantly reduced.

That “new renovation smell” isn’t just a sign of a fresh home — it’s a sign of the materials used.

The good news is, it’s preventable.

By choosing better materials, planning wisely, and allowing proper ventilation, you can create a home that not only looks good — but also feels clean, comfortable, and safe to live in.

Planning Your Renovation?

At How 2 Design 4U, we focus on E0 board carpentry, low-emission materials, and proper planning to help homeowners achieve healthier, more comfortable living spaces. Contact How 2 Design for a consultation today!