comScore
CASACOR
Decoration

Bathroom renovation: essential care for making repairs

With attention to planning, it is possible to avoid future problems in the bathroom renovation and achieve a lasting result.

By CASACOR Publisher

Submitted at Sep 23, 2025, 12:08 PM

08 min de leitura
Marina Linhares Interiors - Alchemy of Living Portinari. Project of CASACOR São Paulo 2025.

Marina Linhares Interiors - Alchemy of Living Portinari. Project of CASACOR São Paulo 2025. (Denilson Machado/MCA Estúdio)

The bathroom renovation is one of the most challenging within a house, as it involves plumbing installations, finishes, and details that need to be thought out with precision. A well-executed planning prevents future problems such as leaks and waste of materials, in addition to ensuring that the space becomes functional and aesthetically pleasing.
Vanessa Figueiredo and Giovanna Arimatéa - Couple's Bath. CASACOR Goiás 2025 project.

Vanessa Figueiredo e Giovanna Arimatéa - Banho do Casal. Projeto da CASACOR Goiás 2025. (Edgard César/CASACOR)

More than choosing beautiful coverings or modern fixtures, the bathroom renovation requires attention to technical and structural stages. From choosing professionals to defining each item, it is important to evaluate the durability, comfort, and ease of maintenance, so the investment is maximized in everyday life.

Initial Planning and Budget


Before starting the bathroom renovation, planning is the most important step. It is essential to define the project's goal: just spot repairs such as changing coverings and fixtures, or a complete transformation that involves changes to the plumbing and electrical systems. This decision directly impacts the budget and the time required for execution.
architect - design - interiors

(Freepik/Divulgação)

The ideal is to develop a timeline and look for style references to facilitate material selection. Furthermore, reserving a margin in the budget for unforeseen events helps to deal with adjustments that may arise during the work, avoiding interruptions and uncontrolled expenses.

Structure and Installations


The structural aspect is one of the most delicate points in the bathroom renovation. Any modification to plumbing or electrical networks should be performed under technical supervision to ensure safety and efficiency. Checking the existence of leaks, water damage, or wear in walls and floors is fundamental before installing new coverings.
Bathroom renovation

(Freepik/Divulgação)

Another consideration is to choose moisture-resistant materials, for both floors and walls. Ceramic coverings, porcelain tiles, and natural stones are good options, as they combine ease of cleaning and durability, without compromising the projects' aesthetics.

Ventilation and Lighting


Proper ventilation is an often neglected aspect of bathroom renovation, but it makes all the difference for the durability of materials and the comfort of the projects. Whenever possible, prioritize windows and natural air inlets. If that's not feasible, invest in efficient exhaust fans.
Suite Lite Igor Zanon CASACOR Minas Gerais 2021 room MDF brises garden wood decoration

Suíte Lite, por Igor Zanon. Projeto da CASACOR Minas 2021. (Gustavo Xavier/CASACOR)

The lighting also deserves emphasis, combining general light with focal points for mirrors and countertops. Besides enhancing the decoration, this care ensures practicality in daily activities, such as makeup and personal care.

Choice of Fixtures and Metals


Fixtures and metals define part of the visual identity of the space and should be chosen carefully. In the bathroom renovation, it's worth investing in quality pieces that can withstand daily use without compromising durability. Faucets, showers, and valves need to be durable and perform well, as well as correspond to the style chosen for the projects.
Ramiro Mendes - Bathroom - Hotel Serendipity - CASACOR Ceará

Hotel Serendipity, por Ramiro Mendes. Projeto da CASACOR Ceará 2023. (Victor Eleutério/CASACOR)

The countertops, sinks, and toilets can also follow more modern or classic lines, depending on the proposal. Today, the market offers versions with technologies that facilitate cleaning and reduce water consumption, combining functionality and sustainability.

Coverings and Finishes


The coverings are one of the elements that most visually impact the bathroom renovation. It is important to consider not only the aesthetics but also the practicality. Non-slip floors, for example, are essential to avoid accidents in wet areas.
Decompression Suite, by Estevão Garcia. Projects of CASACOR Goiás 2022.

Suíte Descompressão, por Estevão Garcia. Ambiente da CASACOR Goiás 2022. (Edgard César/CASACOR)

The color palette can help to expand the feeling of space. Lighter tones bring lightness and brightness, while darker colors can create sophisticated and intimate projects. Natural textures and wood or stone details contribute to a cozy atmosphere. CASACOR Publisher is a creator of exclusive content, developed by the CASACOR Technology team based on the knowledge base of casacor.com.br. This text was edited by Yeska Coelho.