About us

Aerich Waterproofing & Construction is a reputable Malaysian contractor specializing in water leakage repair and waterproofing solutions. With expertise in plumbing, drainage, roofing, and PU injection, our experienced team is committed to delivering effective solutions, quality installation, and excellent customer service — all at affordable prices. Trust our specialists to solve your water leakage problems with confidence and care.

Certified EXPERTS

Led by a certified waterproofing instructor, our team brings unmatched expertise, technical excellence, and proven methods to protect your property from water damage.

Best Price Guarantee

We guarantee the best value for your investment — premium waterproofing services at honest, competitive prices, with no compromise on quality.

24 Month Warranty

All our waterproofing services come with a full warranty on materials and workmanship, ensuring lasting protection and total peace of mind.

FREE INSPECTION & CONSULTATION

We offer a free, no-obligation inspection to assess your property's condition, identify potential issues, and recommend professional solutions — ensuring you stay ahead of costly repairs.

OUR FOUNDER

MOHAMMAD RIDHWAN BIN MALEK

Mohammad Ridhwan bin Abd Malek is the CEO and Founder of Aerich W&C Sdn. Bhd., a leading waterproofing and construction company established in 2017. With over 13 years of experience as a Project Coordinator, he has successfully implemented advanced waterproofing solutions for a wide range of structures—enhancing structural integrity and preventing long-term water damage.


Ridhwan is also a seasoned corporate trainer, known for running impactful training programs, aligning team efforts with business objectives, and fostering a culture of continuous learning and development. His strong communication skills play a crucial role in effective staff training and organizational growth.


His leadership roots trace back to his time as a cadet and police cadet, with over 10 years of experience in the field, particularly within the Criminal Investigation Department (D5). Recognized for his conflict resolution capabilities and weapons training, he was recommended by the Royal Malaysia Police Training Center, Kuching Academy, for his outstanding self-defense skills and discipline.


Driven by a passion for helping others and a deep interest in construction, Ridhwan founded Aerich W&C to offer reliable, high-quality waterproofing services while educating clients on proper systems and solutions. His mission is to deliver excellence in every project, prioritizing customer satisfaction and long-term structural stability.

Co-FOUNDER

ERYNA BINTI ABD HAMID

Eryna Binti Abd Hamid is the Co-Founder of Aerich Waterproofing & Construction, a company committed to delivering high-quality waterproofing and structural solutions. She holds a Level 4 Business (DKM) Certificate from the Ministry of Human Resources Skills Development Department and a Train The Trainer (TTT) Malaysia certification.


With over 15 years of experience in managing companies, Eryna combines practical leadership with a solid foundation in business strategy. She is skilled in interpersonal communication, team leadership, problem-solving, decision-making, and emotional intelligence.


At Aerich, Eryna is responsible for overseeing company operations, guiding staff performance, and ensuring long-term success. She believes that leadership must be built on trust, responsibility, and perseverance—values that influence both team morale and business growth.


Eryna’s motivation for entering the industry stems from her belief that while anyone can start a business, long-term success requires in-depth industry knowledge, financial management, and creative thinking. Her passion for entrepreneurship continues to drive her toward building a sustainable and competitive company.

QUALIFIED EXPERT

At Aerich Waterproofing & Construction, our commitment to excellence starts at the top. Our founder is a certified instructor in the field of waterproofing, bringing not only hands-on experience but also deep technical knowledge and teaching credentials.

With years of real-world project execution and formal training expertise, we ensure that every project is approached with precision, industry best practices, and the highest standards of workmanship.

Trust your property with a team led by a certified expert who has trained others — and now brings that same level of mastery to every project we deliver.

Solutions We Provide

At Aerich Waterproofing & Construction, we provide reliable and long-lasting solutions for both residential and commercial projects.

Our team of experts is committed to delivering high-quality workmanship with attention to detail, safety, and customer satisfaction.

Premium Roof Waterproofing
  • Seamless membrane application for maximum durability
  • Protection against heavy rain and UV exposure
  • Extends roof lifespan significantly
  • Ideal for flat and sloped roofs
Basement Leak Protection System
  • Crack injection and wall sealing
  • High-resistance waterproof coatings
  • Prevents structural damage and mold growth
  • Full internal and external protection
PU Injection Crack Sealing
  • High-pressure polyurethane injection into cracks
  • Expands to fill and seal completely
  • Stops active water leaks immediately
  • Strengthens structural integrity
Flexible Roof Coating Solutions
  • Application of elastic waterproof membranes
  • Adapts to surface movements and thermal expansion
  • Protects against weather, ponding water, and aging
  • Cost-effective alternative to roof replacement
Tile Surface Waterproofing (Wet Areas)
  • Full surface preparation and waterproof membrane
  • Ideal for bathrooms, balconies, and kitchens
  • Prevents water seepage under tiles
  • Enhances tile longevity and performance
Expansion Joint Waterproofing
  • Installation of flexible, watertight sealant systems
  • Absorbs building movements without cracking
  • Long-lasting barrier against water penetration
  • Suitable for roofs, car parks, and building facades

Explore Our Work

Our gallery showcases the successful projects we've executed across various sectors, including residential, commercial, and industrial waterproofing. Browse through our portfolio to see the high-quality materials and techniques we use to ensure long-lasting, reliable waterproofing solutions. From foundation treatments to roof sealing, our completed projects reflect our commitment to excellence and customer satisfaction.

Trusted by Our Clients

We’ve served clients from various sectors including real estate, education, healthcare, manufacturing, and private homeowners — consistently delivering results that meet or exceed expectations.

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