Concrete Repair Singapore

Your Trusted Concrete Repair Service Specialist

Have you been noticing signs of wear and tear, with concrete surfaces revealing cracks, spalling, or structural weaknesses in your walls and ceilings?


You’ve been staring at your concrete cracks for far too long!


Ignoring even the tiniest fissure in your concrete can set off a chain reaction of damage, risking the structural integrity of your building or even your safety, such as in the case of falling spalling concrete slabs.


When it comes to addressing concrete cracks, you need specialised professionals to safeguard your property’s structural integrity.


Time is of the essence – secure your property’s strength today with Allstar Waterproofing!

Concrete Spalling Repair

Concrete Spalling Repair

Structural Crack Repair

Structural Crack Repair

Non-Structural Crack Repair

Non-Structural Crack Repair

Trusted By

Allstar Waterproofing & Services customers

Why We Are the Go-to for Concrete Repairs



Discover the hidden problems beneath the concrete surface with our meticulous evaluation process. We delve deep to unearth both visible and underlying issues, ensuring a complete diagnosis of your concrete needs—absolutely free of charge.

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Our approach to quotations is built on clarity and integrity. We engage in detailed discussions to guide you through every step, ensuring you understand the full scope of the work required. With us, you won't have to worry about any hidden costs.

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Allstar Waterproofing brings 20+ years of unwavering commitment and expertise to every project. With over 3000 clients served across residential, commercial and industrial properties, our legacy is built on consistent, professional solutions tailored to every project.

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We're in the business of building relationships as solid as our repairs. Our client-first philosophy means we're dedicated to honouring your trust, prioritising your needs, and delivering beyond your expectations every time.

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We pledge nothing less than top-notch workmanship for lasting concrete repairs. Our stringent quality standards, combined with the use of premium materials and skilled professionals, ensure that our solutions are not just temporary fixes but long-term protections for your property.

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Rest easy knowing that a solid 1-year warranty backs our commitment to quality repair work. Want even more security? You can talk to us about extended warranty options—because your peace of mind is our priority.

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Common Concrete Issues


Spalling concrete is a common issue predominantly found in older buildings, which often feature reinforced concrete structures.

It is primarily caused by the natural deterioration process of carbon dioxide in concrete interacting with water, leading to corroded steel bars within the ceiling slab.

This corrosion results in cracked and bulging concrete cover, which can look like flaking concrete surfaces or exposed coarse rocky concrete aggregate, potentially compromising the structural integrity of the building.

repair spalling concrete slab
non structural cracks on concrete surface

Structural Cracks

Structural cracks within buildings occur when the building structure fails to account for variations such as defects, ground movements and concrete deterioration, impacting the building’s safety and stability.

These cracks typically exceed 3mm in width and appear in different orientations—horizontal, vertical, diagonal, or resembling staircases in foundation blocks.

Their presence can induce issues within the property, such as sloping floors and difficulty in closing doors and windows.

Non-Structural Cracks

Non-structural cracks usually appear less than 3mm wide and don’t directly compromise the structural stability of the building, typically stemming from internally induced stress on concrete slabs.

Factors such as temperature fluctuations, weather changes, moisture build-up, shifting foundations, hydrostatic pressure, the presence of vegetation, and poor construction conditions are common causes of non-structural cracks.

building structure cracks

The Allstar Promise: Precision Repairs Tailored to Your Needs

Embrace the Allstar Waterproofing difference, where our unwavering precision in concrete repair ensures only the correct techniques will be used for the specific problem at hand.

Here are some possible methods we use to repair spalling concrete and cracks:

Epoxy Injection

Epoxy resin is injected into cracks to restore and repair concrete back to its original state, with or without added reinforcement. The injected epoxy resin is actually stronger than the concrete and can restore the concrete’s strength.


Grouting and Sealing of Cracks

Grouting and sealing can be used where structural repair is not necessary. This remedial repair method involves enlarging the crack along the affected surface and then filling and sealing it with a suitable joint sealant.


Filling of Cracks

Concrete cracks can be filled using masonry crack filler. Very small cracks, such as hairline cracks, can be repaired using a concrete patching compound, which is applied over the crack and smoothed with a putty knife or trowel.


Concrete Spalling Repair

Remove the spalled concrete to expose the corroded steel bars. Next, remove the rust by using a wire brush and then coat the exposed steel bars with anti-corrosion treatment. Patched back with a non-shrink repair mortar reinforced with fibre.

4 Easy Steps to Get Your Concrete Repairs

Step 1: WhatsApp Us for Your Free Consultation

Begin by sending a message to us via WhatsApp to kickstart your free consultation. One of our specialists will promptly get in touch to learn more about your concrete problems and schedule an on-site inspection.

Step 2: On-Site Inspection and No-obligation Quotation

Our team will visit your property to evaluate the concrete’s condition and discuss tailored solutions. You’ll receive an on-the-spot quotation for straightforward cases or a detailed proposal within 1-3 working days for more complex repairs.

Step 3: Payment and Scheduling

Upon settling the deposit, we’ll pinpoint the perfect timeline to commence repairs. The completion of repair works may range from weeks to months, tailored to the project’s demands, scale and complexity.

Step 4: Begin Work!

Finally, we can roll up our sleeves and begin the transformation. Our repairs are backed by a 1-year warranty, with the opportunity to explore extended warranty options – just have a chat with our team!

Hear what our happy clients have to say!

Client Testimonials

Your Safety is Our Priority

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BCA logo for Allstar Waterproofing & Services
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SCA logo for Allstar Waterproofing & Services

At Allstar Waterproofing, your safety is the cornerstone of our services. We are not just experts in concrete repair; we are certified guardians of your property’s integrity.


Our esteemed credentials, including certification from the Building and Construction Authority (BCA), bizSAFE3, and membership with the Singapore Contractors Association, are testaments to our unwavering commitment to upholding the highest safety and quality standards.

Our Previous Works

Our Concrete Repair Experts in Action

Secure Your Concrete Structures and Protect Your Property with Allstar Waterproofing!

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Concrete Repair by Allstar Waterproofing & Services

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