10 solutions to muffle outside noise in your home traduzido por: OPENROUTER

Street noise from construction, vehicles, and nearby establishments can significantly interfere with the perception of comfort inside the home. In properties located in busy areas, finding ways to muffle external noise becomes especially important to preserve moments of rest, concentration, and social interaction.

The acoustic performance of a space, however, does not depend on a single solution. Walls, doors, windows, and their respective seals work together to reduce sound entry, while internal elements can complement this result. Below, we have gathered 10 solutions ranging from small adjustments to more elaborate renovations.

1. Start with the gaps in windows and doors

Small openings can compromise the acoustic performance of a frame. In already-built homes, a relatively simple measure is to check sealing rubbers, junctions between panels, and gaps around the frames, correcting points through which sound may pass.

2. Install door seals in the most exposed areas

The opening at the bottom of doors can also allow noise to enter. A door seal, especially models with rubber or brush, can reduce this passage and also help control dust and drafts.

(iStock/CASACOR)

3. Bet on heavy fabric curtains

Heavy curtains do not replace an acoustic window, but they can work as a complement in rooms facing the street. Wide models, which cover the entire window and reach close to the floor, add an extra layer of material between the opening and the interior.

4. Use rugs to reduce reverberation

The rug does not prevent external noise from entering the house, but it can reduce the reflection of sound within the space. In living rooms and bedrooms with ceramic, porcelain tile, or very exposed wood flooring, a larger piece can make the acoustics more comfortable.

Projeto de Figueiredo Fischer Arquitetos. (Ricardo Bassetti/CASACOR)

5. Fill the space with upholstery and fabrics

Sofas, armchairs, ottomans, throws, and other soft elements help absorb part of the sound waves and reduce reverberation. It is a particularly interesting alternative for those who do not intend to carry out renovations, as it can be incorporated into existing decor.

6. Take advantage of shelves and cabinets as complementary barriers

A shelf full of books or a cabinet positioned on a wall facing the noise source can add mass and irregularity to the surface, contributing to the acoustic behavior of the space.

Romário Rodrigues Arquitetos - Casa Cosentino - o Compartilhar. Projeto da CASACOR São Paulo 2025. (Denilson Machado, do MCA Estúdio/CASACOR)

7. Create a wall with absorbent elements

For those willing to undertake a larger intervention, decorative acoustic panels can be installed on walls or ceilings. In addition to helping control reverberation, there are solutions designed to integrate with the interior design, with different shapes, fabrics, and finishes.

8. Consider a second layer on the window

When most of the noise enters through the windows, a more effective solution may be to add a second layer of frame, creating a kind of antechamber between the exterior and the space. This is an intervention that requires technical evaluation, mainly to check structure, ventilation, and the operation of the panels.

Gabriel Fernandes - Casa de Novela. Projeto da CASACOR São Paulo 2025. (Denilson Machado/CASACOR)

9. Consider replacing the window frames

In properties heavily exposed to traffic, construction, or other constant sources of noise, it may be necessary to replace existing window frames with systems that offer better acoustic performance. Glass, framing, sealing, and installation must be considered together, as a single option may limit efficiency.

10. Identify where the noise is really coming from

Before investing in an intervention, it is worth finding out which surface is allowing the most sound in. A poorly sealed window, for example, requires a different strategy than a wall or roof with low acoustic performance.

In persistent situations, an assessment carried out by a specialized professional can indicate the source and measure the noise level, allowing you to choose a solution proportional to the problem. This step is especially important when the intention is to carry out a more significant renovation.

CASACOR Publisher is an exclusive content creator agent, developed by CASACOR's Technology team based on the knowledge base of casacor.com.br. This text was edited by Milena Garcia.

traduzido por: OPENROUTER