5 Best Foundation Repair Services in Singapore (2026)

SWC Construction Waterproofing Singapore specializes in water leakage detection and repair for toilets, bathrooms, balconies and roofs, and is registered with the Building and Construction Authority and HDB per its own site. Reviewers consistently name the same consultant, Shaun, for accurate diagnosis and clear explanation of the injection grouting and waterproofing membrane process. It's the most-reviewed business on this page, with over 20 years of experience claimed.

Proof-Tech Waterproofing & Maintenance handles roofing, water leakage repair and concrete restoration for both residential and larger commercial or institutional buildings. Reviewers describe multi-year relationships with the same account manager, Stanley Hoi, and detailed, warranty-backed assessments before any work begins. One reviewer specifically describes a church rooftop waterproofing project completed to a high standard.

WaterproofSG handles roof slab, bathroom and general waterproofing, with reviewers specifically praising the company's thoroughness diagnosing long-standing leak problems in landed properties. Multiple reviewers name different consultants, all described as patient, non-pushy and willing to work around weekend schedules. It holds a perfect rating across nearly 200 reviews.

Atlas Works specializes in non-hacking nano waterproofing technology for toilets, balconies and walls, advertising a warranty and no-hacking approach that avoids tearing up existing tiles. Most reviews describe smooth, fast results, but one extensively detailed negative review describes five separate repair attempts over an extended period that ultimately failed to resolve a toilet seepage issue, ending in a refund after the customer requested one.

Flux Solutions is a BCA-registered waterproofing contractor with more than 15 years of experience, handling balcony, roof and toilet leakage alongside general building repair work. Reviewers describe non-hacking balcony waterproofing completed within two days, and one detailed review describes a high-rise signage and glass panel project completed safely and within a tight timeline. It holds a strong 4.9 rating across 162 reviews.