How to renovate a bathroom? Learn about bathroom renovation projects, costs, and precautions in 5 minutes!

The bathroom is one of the most frequently used spaces in a home. Over time, it is inevitable that issues such as aging, mold, or wear and tear will appear. An old bathroom not only affects living quality but may also pose safety risks for family members. Therefore, renovating the bathroom has become an important choice for many households to improve their living environment. This article will guide you through the bathroom renovation process, cost estimation, and types of renovation work to maintain a comfortable and safe bathroom environment.

〈Further Reading: What Does Interior Renovation Include? A Must-Read Guide Before Home Repairs!〉

What is Bathroom Renovation? How to Determine if Your Bathroom Needs Renovation?

Bathroom renovation refers to the process of redesigning and reconstructing an old or damaged bathroom, aiming to enhance aesthetics while addressing safety issues caused by aging. Homeowners can evaluate whether the bathroom waterproofing layer has been in use for over 10-15 years, if there are unpleasant odors, falling tiles, leaking pipes, or mold in corners that is difficult to remove. If any of these conditions exist, it is recommended to consider a bathroom renovation, which can improve living quality and create a safer and more comfortable bathroom space.

Introducing the 3 Major Bathroom Renovation Projects!

If you want to renovate your bathroom but don’t know where to start, keep in mind that bathroom renovation is more than just replacing tiles or updating fixtures. Every detail, from safety to functionality and design aesthetics, affects user comfort. Below are the three most important renovation projects to help make your bathroom both practical and refreshed!

Bathroom Renovation Project Type 1: Bathtub Installation

Bathroom renovation is usually adjusted according to family needs. Special attention should be given to waterproofing, ensuring the seal between the bathtub and the floor is secure to prevent future leakage. Minor scratches on the bathtub can be repaired, but cracks or holes should be handled by a professional team.

Bathroom Renovation Project Type 2: Ceiling Installation

When choosing ceiling materials, pay close attention to waterproof and moisture-resistant properties to ensure long-term durability. During renovation, piping layout must be planned first, reinforced with steel and fixtures, followed by panel installation, joint filling, and finally inspection to ensure a flat and sturdy ceiling.

Bathroom Renovation Project Type 3: Waterproofing Work

The primary function of the waterproof layer is to prevent water from penetrating walls and floors, which could damage the structure. During renovation, old waterproof layers are removed and reapplied, including floor and wall coatings, as well as sealing key joints. It is recommended to inspect and renew the waterproof layer every 10-15 years to maintain the bathroom’s functionality and safety.

What Should You Do Before Renovating a Bathroom? Understanding Your Needs for a Smoother Plan!

Before renovating, homeowners should clarify their needs to decide on the renovation direction, saving time on repeated discussions with designers. Proper planning of piping and waterproofing is essential to prevent future leaks or safety issues. Before starting, discuss project scope and budget with a designer or general contractor to arrange materials and methods accordingly, ensuring the renovation can be completed on schedule and meet expectations.

〈Further Reading: What’s the Difference Between Interior Renovation and Interior Decoration? Understand the Differences at a Glance〉

What is the Bathroom Renovation Process?

Planning a major bathroom overhaul can seem daunting, but by following the correct steps, you can effectively control time and budget. Below is a complete bathroom renovation process to help ensure a smooth and successful project.

Plumbing and Electrical Work

Before construction, inspect existing plumbing and electrical layouts to determine if updates or changes are needed. New layouts require planning, installation, insulation, and waterproofing. After installation, test water and electricity to ensure everything functions properly. Finally, electricians will install switches and outlets to ensure the bathroom’s plumbing and electrical systems operate safely.

Masonry Work

During renovation, old wall and floor tiles, waterproof layers, and bathroom fixtures are removed to expose interior walls and clear debris. Then, primer and cement base are applied, piping is concealed within walls, and water-stopping blocks and floor slopes are installed to ensure smooth waterproofing and tile installation.

〈Further Reading: What is Masonry Work? Introducing 5 Standard Procedures for Masonry Projects〉

Waterproofing Work

Waterproofing involves applying elastic cement to form a protective layer that reaches at least shower height, ensuring complete wall coverage. Typically, three layers are applied, each depending on drying time, followed by a curing period of several days. The waterproof layer should be at least 0.5mm thick to prevent cracking and effectively avoid leaks or wall damage.

5 Key Points to Ensure a Worry-Free Bathroom Renovation

The bathroom is a high-usage space, and any oversight during renovation may affect comfort and durability. Proper planning before renovation can greatly reduce future problems. Follow these five key points for a safer, smoother bathroom renovation!

Bathroom Renovation Tip 1: Use Waterproof Materials for Door Sills

To prevent moisture damage, the bathroom walls need proper waterproofing, and the door should also be protected. It is recommended to install the bathroom door on a marble or artificial stone sill, which prevents water from seeping under the door during cleaning, avoiding moisture accumulation and wood rot.

Bathroom Renovation Tip 2: Ensure Complete Waterproofing

Thoroughly remove old flooring and wall surfaces, and use high-quality, stable waterproof materials. Apply each layer evenly, especially around corners and pipes. Proper waterproofing prevents future leaks and wall damage, extends the bathroom’s lifespan, and reduces maintenance costs.

Bathroom Renovation Tip 3: Install Proper Drainage

For smaller floor tiles, design the area around drains as funnel-shaped to ensure smooth water flow. For larger tiles, use linear drainage with a slight slope toward the drain so water naturally flows, keeping the bathroom floor dry.

Bathroom Renovation Tip 4: Install an Exhaust Fan to Keep the Bathroom Dry

An exhaust fan removes moisture produced during showers, keeping the bathroom dry, reducing mold growth, and minimizing odors.

Bathroom Renovation Tip 5: Conduct Waterproof and Water Accumulation Tests After Completion

After renovation, perform waterproof and water accumulation tests to ensure the drainage system functions correctly. Water retention tests detect leaks, while accumulation tests check for poor drainage or stagnant water. Neglecting this step can result in leaks and additional repairs, increasing renovation costs and time.

How Much Does a Bathroom Renovation Cost?

The cost of bathroom renovation varies depending on the scope of work, generally ranging from NT$100,000 to NT$300,000. Basic renovations replacing toilets, sinks, and other simple fixtures cost around NT$100,000–150,000. Standard renovations, including basic waterproofing and most equipment replacements, cost approximately NT$120,000–200,000. Full renovations, involving complete demolition, new waterproofing, and piping updates, cost about NT$200,000–300,000.

Bathroom Renovation Projects and Prices

Bathroom Maintenance Tips After Renovation

After renovation, proper daily maintenance can extend the life of fixtures and keep the space clean. Here are three practical tips to keep your newly renovated bathroom in optimal condition, reducing future repair troubles and expenses.

Clean the Bathroom Regularly to Prevent Mold

Avoid harsh acidic or alkaline cleaners that can damage tiles, glass, or plastic surfaces. Use mild cleaners with a sponge or soft brush to clean walls and floor joints, preventing mold and mineral buildup. Use non-abrasive glass cleaners for mirrors and glass surfaces to keep them clear.

Inspect and Maintain Bathroom Fixtures Regularly

Periodically check faucets, showerheads, drains, and toilets for leaks, blockages, or malfunction. Address water pressure issues or slow drainage immediately to prevent wall or floor damage. Also, check hardware for looseness or rust and replace if necessary.

Maintain Proper Bathroom Ventilation

Bathrooms are prone to humidity, which can cause mold in tile joints, rust metal fixtures, and deform plastic parts. Use exhaust fans or open windows during use to circulate air and remove moisture. If no window is available, use a dehumidifier to maintain a dry and fresh space.

Weiden Engineering｜Professional Bathroom Renovation in Central Taiwan

Weiden Engineering has extensive experience in bathroom renovation, focusing on the central region. With professional designers and skilled construction teams, we create tailored solutions to meet customer needs. Every detail, from waterproofing and piping updates to fixture replacement, is carefully managed to ensure a comfortable, clean, and safe bathroom.

Conclusion

Old bathrooms are prone to mold and dirt accumulation in corners and floor joints due to prolonged humidity, which can affect family health and pose safety hazards such as leaks or electrical risks. Renovation can improve comfort and safety while allowing personalized space planning and functional design, extending the bathroom’s lifespan. For a worry-free renovation, contact Weiden Engineering. Weiden offers comprehensive bathroom renovation services in Central Taiwan, from planning to construction, all handled by a professional team. Schedule a consultation to create a comfortable and durable ideal bathroom with Weiden Engineering.