Waterproofing Solutions to Leakage on Concrete Repair

Concrete structures are built for strength and durability, but over time they can develop cracks, water leakage, and concrete spalling caused by moisture ingress and reinforcement corrosion. These defects allow water to penetrate deeper into the structure, accelerating deterioration and compromising structural integrity. Without proper concrete repair and waterproofing, the damage can worsen, leading to long-term safety and performance issues.

Signs & Causes of Concrete Spalling

Concrete spalling occurs when moisture, corrosion, or weakened materials cause the concrete surface to crack, flake, or break away. These issues often start small but can rapidly worsen if left untreated.

Water Ingress & Poor Waterproofing

Signs include damp areas, white salt deposits, hollow patches, and cracks that continue to spread.

Corroding Reinforcement

Concrete may show rust streaks, cracking along the steel bars, and areas where the rebar becomes exposed or expanded.

Poor Concrete Mix or Workmanship

Soft spots, hollow-sounding sections, early surface cracks, and peeling layers often begin to appear.

Chemical Attack

The concrete surface can discolour, form isolated cracks, and gradually break down over time.

Concrete Spalling Commonly Occurs

Concrete spalling typically occurs in areas exposed to constant moisture, weather, or structural stress, especially on external walls, balconies, roofs, structural elements, basements, and high-traffic concrete surfaces.

External Walls & Building Facades

Balconies, Parapets & Roof Edges

Roof Slabs & Flat Roofs

Beams, Columns & Structural Slabs

Bridges, Overpasses & Coastal Structures

Basements, Industrial Floors & High-Traffic Areas

ARCHTECH Spalling Concrete Repair & Preventive Solution

ARCHTECH delivers a complete concrete spalling solution by combining advanced structural repair with long-term waterproofing protection. We ensures every surface is properly repaired and prepared before applying our high-performance waterproofing systems, resulting in long-lasting durability, safety, and complete protection against future spalling.

How ARCHTECH Solves Concrete Repair Leakage

We provide a systematic, long-lasting solution that protects your property from leaks, mould, and structural damage. Here’s how we do it:

1

Initial Site Assessment & Safety Protocols

Our specialists utilise advanced thermal imaging to pinpoint the exact source of leaks with surgical accuracy. By identifying hidden damage early and ensuring minimal disruption, we provide a long-term solution that protects your property.  
2

Crack Repair & Substrate Restoration

We repair all cracks and reinforce weak areas immediately to make sure the surface is strong before we start waterproofing.
3

Application of ARCHTECH Waterproofing Solution

Multiple waterproofing layers are applied to protect your area from leaks for years. Completion usually takes just 1 day depending on the size of the area.
4

Final Check

A final walkthrough ensures every area is fully coated with our waterproofing solution, providing long-term protection against balcony leaks.

The solution leaves your area fully sealed and dry, providing lasting protection against leaks and daily moisture.

Proven Waterproofing Solutions for Spalling Concrete

Our certified team diagnoses spalling concrete issues and applies targeted waterproofing solutions. By combining effective repair methods with quality materials, we protect your surfaces and maintain structural integrity for years.  

In-House Specialist Expertise

We rely on our certified in-house team to diagnose concrete spalling at its root cause, delivering precise corrosion treatment and structural patching for long-lasting repairs.      

Comprehensive Leak Resolution

We handle spalling repairs end to end, from treating rusted rebar to rebuilding concrete and waterproofing, restoring strength and appearance across ceilings, balconies, columns, and slabs.

Tailored Repair Systems for Concrete Spalling

We apply the right repair method for each type of concrete damage, using specialised system to ensures long-term durability for any structure.  

Comprehensive 3-years Warranty for a Piece of Mind

Our long-term warranty covers all flat roof waterproofing work, giving you confidence in durability and reliability of ARCHTECH’s leak-proof solution.

Our Past Projects

ARCHTECH Waterproofing has been trusted across nation wide, from hospitality developments and government facilities to large-scale engineering works and premium residential properties. Our solutions are engineered for long-term performance, backed by technical expertise at every stage of the project.

Clear Coating

Waterproofing Bathroom in Cyberjaya

November 12, 2025•

Clear Coating

Waterproofing for Toilet

November 12, 2025•

Can’t Describe the Leak? Just Show Us.

Send us a photo or video of the leak.

Cracked Concrete? We Repair It.

Tell us what you’re facing, whether it’s a leak, damp smell, mould stain or bubbling paint. You can also upload a photo for faster assessment. Our team will review your case and get back to you with a personalised solution and quotation.

Explore Our Comprehensive Range of Waterproofing Solutions for Other Areas

Discover how we protect every area of your property.

HOW CAN WE ASSIST?

Frequently Asked Questions

Is concrete spalling caused by water leakage?

Yes, water leakage is one of the most common causes of concrete spalling. When water seeps through cracks or porous surfaces and reaches the steel bars (rebar) inside the concrete, it causes rust. As the steel corrodes, it expands and puts pressure on the concrete, causing it to crack, bulge, or break off.

Can leaking balconies or bathrooms cause concrete spalling on ceilings below?

Yes, definitely. Water leaking from above, such as from a balcony, bathroom, or roof slab, can soak into the concrete and trigger spalling in the ceiling or beams below. If left untreated, it can compromise the structure over time. ARCHTECH can inspect both the leak and the damage to recommend the right repair approach.

Can waterproofing prevent future concrete spalling?

Absolutely. A good waterproofing system acts as the first line of defence, preventing water from reaching the steel inside your concrete. Whether it’s for balconies, roofs, or wet areas, waterproofing protects your structure and reduces the risk of spalling in the future.

Is it dangerous to leave spalled concrete untreated?

Yes, untreated concrete spalling can pose a serious risk. Over time, chunks of concrete may fall, and the exposed steel may weaken the structural integrity of the slab or beam. What starts as a minor leak can eventually become a safety hazard. Early intervention helps avoid costly repairs later.

Can water from external walls or windows cause concrete spalling?

Yes. Water seepage through external walls, windows, or poorly sealed joints can enter the structure and lead to spalling in nearby beams, walls, or ceilings. These kinds of leaks are common in high-rise buildings. Our specialists can trace the entry point and stop the leak before restoring the affected areas.