
Roof Waterproofing & Repair
Facing persistent roof leakage or worried about potential water damage? General Waterproofing provides comprehensive roof waterproofing services in Singapore, catering to residential, commercial, and industrial properties. As a trusted roof waterproofing contractor with over 17 years of experience, we specialize in protecting your property from the harsh Singapore climate. Our services cover all roof types, including metal roofs, concrete roofs, and waterproofing tiles, ensuring long-lasting protection against water intrusion.
Why Choose General Waterproofing?
When it comes to roof repair and roof waterproofing, you need a reliable partner. Here’s why General Waterproofing is the preferred choice in Singapore:
Detailed Roof Inspections
We conduct thorough inspections to identify all vulnerabilities, including potential sources of roof leakage and areas susceptible to mould spores.
Professional Assessment & Transparent Solutions
Our experts provide clear, detailed assessments and recommend the most cost-effective roof waterproofing services tailored to your needs. We explain the proper use of waterproofing membrane and other materials.
Comprehensive Maintenance & Repair
From replacing damaged waterproofing tiles to applying advanced membrane systems, we handle all aspects of roof repair and maintenance.
17
Years
Incorporated on
14 March 2007

Well Trained and
Certified Worker

Ensuring Best
Quality Work

Bizsafe 3 Certified
What is Causing Your Roof to Leak?

Prolonged Downpours
Abrupt and prolonged periods of rain can cause gutters to flood and subject roofing materials like metal roofs and concrete to excessive water, accelerating wear and tear. This can be particularly problematic for properties with waterproofing roof tiles.

Excessive Humidity
The constant humidity in Singapore’s tropical climate creates an ideal environment for the growth of mould and mildew. These fungi thrive in damp conditions, and once they take hold on your roof, they can quickly spread, causing significant damage.

Thermal Fluctuations
The daily fluctuation between intense heat and cooler temperatures can make roofing materials expand and contract, resulting in cracks and structural weaknesses.
The Dangers of Neglected Roof Waterproofing
Ignoring roof leakage and inadequate roof waterproofing can lead to serious problems in Singapore’s humid climate:
- Mould Growth & Health Risks: Singapore’s high humidity, combined with unchecked water intrusion, creates an ideal breeding ground for mould spores. These spores thrive in damp environments, quickly spreading throughout your property. Exposure to mould can trigger a range of health issues, from allergic reactions like sneezing, coughing, and skin irritation, to more severe respiratory problems like asthma. Furthermore, circulating mould spores drastically reduce indoor air quality, making your home or business an unhealthy environment for occupants, especially those with pre-existing respiratory conditions or sensitivities.
- Structural Damage: Prolonged exposure to water can severely compromise the structural integrity of your roof and the building as a whole. Constant dampness leads to the erosion of roofing materials such as wooden beams, concrete, and insulation. Over time, this weakening can cause structural instability, potentially leading to roof sagging or, in extreme cases, a catastrophic collapse. This poses a significant safety hazard to everyone inside the property and can result in extremely costly repairs or even complete reconstruction.
- Interior Water Damage: Water seepage is one of the most visible and immediate consequences of poor roof waterproofing. Leaks can cause unsightly water stains on ceilings and walls, leading to peeling paint, wallpaper damage, and ruined plasterwork. Furniture, carpets, and other belongings can also suffer irreparable damage. Beyond the cosmetic issues, persistent dampness can cause electrical wiring to corrode, posing a fire risk. The cost of repairing or replacing damaged interiors can quickly escalate, making proactive roof repair and waterproofing services a far more economical solution in the long run.
Our Specialized Roof Waterproofing Solutions
We offer a range of solutions to address various roof types and waterproofing needs:
- Waterproofing Tiles: We specialize in waterproofing tiles, ensuring proper sealing and replacement to prevent water absorption and damage.
- Metal Roof Waterproofing: Our solutions protect metal roofs from corrosion and leaks, using durable coatings and sealants.
- Concrete Roof Waterproofing: We apply high-quality membrane systems and coatings to prevent water penetration and structural damage.
- Membrane Application: We use high quality waterproofing membrane for long lasting protection.
Understanding Roof Tile Waterproofing: Tailored Solutions for Every Tile Type
Different roof tiles possess unique characteristics, requiring specific waterproofing techniques to ensure optimal protection. Understanding these differences is crucial for maintaining a durable, leak-free roof in Singapore’s challenging climate.
- Clay Tiles:
- Characteristics: Clay tiles are renowned for their natural beauty, durability, and eco-friendly composition. They offer excellent thermal insulation and are resistant to fire.
- Strengths: High durability, natural aesthetic, excellent thermal insulation, and fire resistance.
- Weaknesses: Their porous nature makes them susceptible to water absorption if not properly sealed.
- Waterproofing Techniques: Require high-quality, breathable sealants to minimize porosity and prevent water ingress. Regular inspections are essential to identify and replace cracked or damaged tiles. Professional waterproofing services are recommended for proper application and maintenance.
- Additional points: Mould and algae can grow easily on the surface of unsealed clay tiles.
- Concrete Tiles:
- Characteristics: Concrete tiles offer versatility in design and color, are cost-effective, and provide good durability.
- Strengths: Cost-effective, versatile designs and colors, and long lifespan.
- Weaknesses: They can absorb water over time, leading to increased weight and potential structural issues. Surface cracking can occur due to weathering.
- Waterproofing Techniques: Need water-repellent coatings to prevent water absorption and proper underlayment installation to enhance protection. Regular maintenance and inspections are crucial to address cracks and weathering.
- Additional points: Concrete tiles can be heavy, requiring a strong roof structure.
- Slate Tiles:
- Characteristics: Slate tiles are naturally water-resistant, durable, and aesthetically appealing, offering a timeless look.
- Strengths: Naturally water-resistant, highly durable, and aesthetically pleasing.
- Weaknesses: They are heavy, requiring a robust roof structure, and can be expensive. Broken tiles need immediate replacement.
- Waterproofing Techniques: Benefit from regular inspections to detect and replace broken tiles. Installing a waterproof membrane underneath provides an additional layer of protection. Proper installation is critical to prevent water penetration.
- Additional points: Slate tiles can last for a very long time, but are expensive to purchase and install.
- Synthetic Tiles:
- Characteristics: Synthetic tiles, made from materials like rubber or plastic, are lightweight, versatile, and often pre-treated for water resistance.
- Strengths: Lightweight, versatile, and often pre-treated for water resistance.
- Weaknesses: While inherently water-resistant, they can still experience wear and tear over time.
- Waterproofing Techniques: Require periodic sealing and professional maintenance to address wear and tear. Regular inspections are necessary to ensure proper sealing and prevent water penetration at joints and seams.
- Additional points: Synthetic tiles come in many different colours and styles.
Comprehensive Roof Care:
Repair, Maintenance, and Waterproofing Excellence
Proactive Roof Repair and Maintenance
- Comprehensive Inspections:
- Meticulous inspections to detect early signs of damage, ensuring timely repairs and preventing costly water damage.
- Gutter and Drain Cleaning:
- Thorough cleaning of gutters and downspouts to prevent water pooling and safeguard your property.
- Prompt Repairs:
- Efficiently addressing cracks, holes, and damaged tiles to restore roof integrity and prevent future leaks.
- Protective Coatings:
- Applying high-quality coatings to enhance durability and resistance to weathering, extending your roof’s lifespan.
Systematic Roof Waterproofing Process
- Thorough Inspection:
- Pinpointing leak sources and vulnerabilities to develop a customized waterproofing solution.
- Surface Preparation:
- Cleaning and removing debris to ensure optimal adhesion of waterproofing materials.
- Damage Repair:
- Repairing cracks and holes to prevent water ingress and create a smooth surface for waterproofing.
- Waterproofing Application:
- Applying premium membranes or coatings to create a durable and impenetrable barrier against water.
- Final Testing:
- Rigorous testing to ensure waterproofing effectiveness and long-lasting protection.
Maintenance Tips for Long-Lasting Roof Waterproofing
Regular Inspections
Inspect your roof at least twice a year for early signs of damage like cracks, loose tiles, or signs of roof leakage. For a thorough assessment, engage experts in roof waterproofing repair.
Clear Gutters and Drains
Regularly remove debris from gutters and drains to ensure proper water flow and prevent water pooling, which can strain your waterproofing and lead to the need for roof repair.
Address Damage Immediately
Don't ignore signs of roof leakage or damage. Promptly address any issues to prevent further deterioration and costly roof repair. Contact a roof waterproofing specialist for assessment and repairs.
Reapply Waterproofing Coatings
Waterproofing coatings wear down over time due to harsh weather. Reapply coatings as recommended by your waterproofing contractor to maintain optimal protection for your waterproofing tiles.
Invest in Professional Maintenance
Partner with a reputable roof waterproofing contractor in Singapore for expert maintenance, ensuring your roof remains in top condition and maximizing its lifespan. This includes specialized services like waterproofing membrane application and maintenance.
Don’t let roof leakage damage your property. Contact General Waterproofing today for expert roof waterproofing services in Singapore. Get a free inspection and protect your investment.
Roof Waterproofing




Our Roof
Waterproofing Solutions
At General Waterproofing, our roof waterproofing solutions cater to various roofing types, including metal, concrete, and waterproofing roof tiles. We offer comprehensive services from start to end, including applying waterproofing membranes, installation, and proactive maintenance work, ensuring your property’s roof remains in excellent condition for years to come.
DID YOU KNOW?
Did you know that ancient civilizations used the earliest waterproofing techniques? Some of the first people who developed techniques for waterproofing walls, boats, and roofs were the Greeks, Egyptians, and Mesopotamians.
One interesting example is from ancient Egypt, when they waterproofed the hulls of their boats using a mixture of straw and bitumen, a naturally occurring material akin to asphalt. This kind of waterproofing was vital for trade and transit in the area, as well as for navigating the Nile River.
By employing locally accessible resources to create waterproofing procedures, these ancient civilizations showed extraordinary resourcefulness and set the groundwork for today’s advanced building techniques.
Our Accomplished Projects
Frequently Asked Questions About Roof Waterproofing in Singapore
What is included in your roof waterproofing repair services?
Our comprehensive roof waterproofing repair services include thorough inspections to identify leaks and damage, cleaning and preparing the roof surface, repairing cracks and holes, applying high-quality waterproofing membranes or coatings, and conducting final tests to ensure effectiveness. We also provide gutter cleaning and maintenance to prevent water damage.
How long does roof waterproofing last in Singapore?
The lifespan of roof waterproofing in Singapore depends on factors like the type of roof, materials used, and environmental conditions. Generally, a well-maintained waterproofing system can last between 5 to 20 years. Regular inspections and maintenance can significantly extend its lifespan.
What is the process of waterproofing a roof using a membrane?
Waterproofing a roof with a membrane involves a thorough inspection, surface preparation, and repair of any damage. Then, a specialized waterproofing membrane is applied to create a seamless, watertight barrier. This membrane can be torch-applied, self-adhesive, or liquid-applied, depending on the specific needs of the roof.
How do I know if my waterproofing tiles need replacement?
Signs that your waterproofing tiles may need replacement include visible cracks, chips, or missing tiles, water stains on your ceiling or walls, and persistent leaks despite repairs. A professional roof inspection can accurately assess the condition of your tiles and recommend necessary replacements.
Can waterproofing roof tiles improve energy efficiency?
Yes, waterproofing roof tiles can improve energy efficiency. By preventing water leaks and moisture penetration, waterproofing helps maintain a stable indoor temperature, reducing the need for excessive air conditioning or heating. This can lead to lower energy consumption and cost savings.