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How Important Is Waterproofing In Your Property?

When it comes to maintaining and renovating your property, some of the most critical aspects are often the ones you can't see. Proper waterproofing is one of these crucial yet hidden elements. Ensuring that your property is adequately waterproofed by a skilled tradesperson can save you from substantial future expenses and headaches.

In this comprehensive guide, we'll delve into why waterproofing is essential, the importance of selecting the right professional for the job, and what to look for in waterproofing solutions.

A man waterproofing the sidewall

Understanding Waterproofing

Waterproofing involves the application of a physical barrier or waterproof membrane designed to prevent moisture from penetrating various areas of a building. It’s a critical aspect of construction and renovation that ensures the longevity and integrity of structures.

What Does Waterproofing Entail?

Waterproofing typically involves treating certain "wet areas" as mandated by building codes. These areas include:

Showers: Floors and walls within shower cubicles.

Bathrooms: Walls adjacent to baths and tubs.

Laundry Areas: Spaces around laundry troughs.

Kitchens: Areas surrounding basins and sinks.

Public Amenities: Regions near urinals. But waterproofing isn't limited to interiors. It's also essential for external applications, such as:

Swimming Pools: Preventing water leakage and maintaining structural integrity.

Car Parks: Protecting the underlying structure from water damage.

Retaining Walls: Ensuring longevity and stability by preventing water ingress.

A worker carefully sprays with waterproofing the building

The Necessity of Waterproofing

Waterproofing is fundamental to maintaining the health, safety, and comfort of a building's occupants. Without it, you could face significant structural issues and health hazards. Here’s why waterproofing is indispensable:

Health and Safety

Uncontrolled moisture can create unhealthy living conditions. If water seeps into your building's structure, it can lead to mold growth, which poses severe health risks, including respiratory problems and allergies.

Structural Integrity

Water damage can cause the deterioration of building materials. Over time, this can compromise the structural integrity of your property, leading to costly repairs or even making parts of the building unsafe.

Long-Term Financial Savings

Investing in quality waterproofing from the outset can save you substantial amounts in the long run. The cost of addressing water damage far exceeds the initial outlay for professional waterproofing. By preventing water ingress, you can avoid the need for expensive repairs and maintain the value of your property.

Two waterproofing professionals working on the building

Why Hiring a Full-Time Waterproofer is the Best Decision for Your Property

When it comes to safeguarding your property from water damage, hiring a professional, full-time waterproofer is unequivocally the best choice. Opting for someone who does it on the side might seem like a cost-effective solution initially, but the long-term benefits of engaging a dedicated expert far outweigh the potential savings. Here’s why a full-time waterproofer is essential for a job well done.

Qualifications and Experience

Ensure that the tradesperson is qualified and experienced in waterproofing. Check their credentials and ask for references from previous clients. Experience in similar projects can be a good indicator of their expertise.

Knowledge of Building Codes

A knowledgeable professional will be well-versed in local building codes and standards. This ensures that the waterproofing is compliant with regulations and provides effective protection.

Quality of Materials

Inquire about the materials and techniques the tradesperson plans to use. High-quality waterproofing membranes and barriers are essential for long-lasting protection.

Warranty and Guarantees

A reputable tradesperson will offer a warranty or guarantee on their work. This provides peace of mind and assurance that the job will be done correctly.

The Importance of Expertise in Waterproofing

Waterproofing is a complex process that requires a deep understanding of various materials, systems, and techniques. A full-time waterproofer brings knowledge and experience, ensuring that every aspect of the job is handled with precision and care. They are well-versed in the latest industry standards, technologies, and best practices, which translates to a higher quality of work and longer-lasting results.

A worker cleaning debris before waterproofing the floor

Steps to Take Before Choosing Waterproofing Materials and Systems

Successful waterproofing begins long before the first layer of membrane is applied. It involves a series of crucial preparatory steps, particularly in the case of terraces and roofs. Here’s a detailed guide on what to consider:

Climatic Conditions

Warm weather and rising temperatures provide the ideal conditions for waterproofing. Low temperatures and high humidity, common in winter, can lead to inefficiencies, such as condensation and bubble formation in the membrane. Always plan waterproofing projects during suitable climatic periods to ensure optimal results.

Cleaning the Substrate

Thoroughly clean the surface to remove any dirt, debris, or contaminants. This ensures that the waterproofing material adheres properly and performs effectively.

Examining the Surfaces

Inspect the surfaces for any signs of damage, cracks, or imperfections. Addressing these issues beforehand prevents potential failures in the waterproofing system.

Preparation of the Surfaces:

Repairing and Smoothing

Prepare the surfaces by repairing any defects and smoothing out uneven areas. This creates a solid foundation for waterproofing materials, enhancing their durability and effectiveness.

Renovating Joints and Wells

Check and renovate joints, wells, and other critical points to ensure they are in good condition. Proper attention to these areas is crucial to prevent water ingress and ensure a seamless waterproofing application.

Sealing Joints and Drains

Proceed with waterproofing the joints and drains meticulously. These are vulnerable points where water can easily penetrate if not properly sealed. Using high-quality materials and techniques here is essential for a robust waterproofing system.

Consistent Quality

A full-time professional is dedicated to maintaining high standards of work consistently. They are less likely to cut corners or rush through the job, ensuring that every step is performed with utmost precision.


Full-time waterproofers take pride in their reputation and are more accountable for their work. They are more likely to offer warranties and stand by their work, providing peace of mind to property owners.

Expertise and Experience

With years of experience under their belt, full-time waterproofers have encountered and resolved a wide range of challenges. Their expertise allows them to identify potential issues early and apply the best solutions, preventing costly mistakes.

Access to Quality Materials

Professional waterproofers can access high-quality materials and advanced tools that are not always available to part-timers. This ensures that the waterproofing system they install is durable and effective.

Time Efficiency

A full-time professional can complete the job more efficiently, minimizing disruption to your daily life. They have the skills and resources to handle unexpected challenges swiftly, ensuring the project stays on schedule.

Compliance with Regulations

Building codes and regulations regarding waterproofing can be complex. Full-time waterproofers are well-versed in these requirements and ensure that their work complies with all relevant standards, avoiding potential legal issues.

A man waterproofing the roof

Practical Applications of Waterproofing

Beyond the basic requirements, waterproofing has several practical applications that enhance the durability and usability of various spaces.

Residential Applications

Basements: Waterproofing basements prevent water ingress, which is crucial for maintaining a dry and usable space.

Balconies and Terraces: Proper waterproofing extends the life of these outdoor areas by preventing water damage.

Bathrooms and Wet Rooms: Effective waterproofing in these areas ensures they remain functional and free from mold and mildew.

Commercial Applications

Industrial Kitchens: Waterproofing in commercial kitchens prevents damage from spills and frequent cleaning.

Public Restrooms: Ensures these high-traffic areas remain hygienic and free from water damage.

Commercial Pools and Spas: Proper waterproofing is essential for maintaining the structural integrity and hygiene of commercial aquatic facilities.


So, there you have it! Waterproofing may not be the most glamorous aspect of property maintenance, but its importance cannot be overstated. Investing in professional waterproofing from the outset safeguards your property's structural integrity, protects your health, and saves you money in the long run. Remember, when it comes to waterproofing,  hiring a qualified and experienced full-time professional is an investment that pays off for years to come.


1. What are the most common areas in a house that require waterproofing?

In bathrooms, waterproofing is crucial for floors, walls around showers and tubs, and areas surrounding basins and sinks. Laundry rooms and kitchens with laundry troughs and sinks also require attention.  For exteriors, waterproofing is essential for swimming pools, retaining walls, and car parks.

2.  Why is it important to hire a qualified professional for waterproofing?

Hiring a qualified professional ensures the job is done correctly using high-quality materials and techniques. They understand building codes, have experience handling diverse projects, and offer warranties for peace of mind.

3. What are some of the benefits of hiring a full-time waterproofer?

Full-time waterproofers prioritize consistent quality, accountability, and expertise. They have access to superior materials and can complete the job efficiently while adhering to regulations.

4. Besides basements, balconies, and bathrooms, are there other areas in a house that benefit from waterproofing?

Yes! Waterproofing roof decks, crawl spaces, and around windows and doors can prevent water damage and extend the lifespan of your property.

5. What factors should I consider when choosing a waterproofing material?

The ideal waterproofing material depends on the specific application and surface being treated. Key factors include climate, water pressure, and desired lifespan. Consulting a professional waterproofer ensures you select the most suitable and effective material.

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