Waterproofing Brisbane

Trusted on the Northside for over 20 years
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Professional Waterproofing Services
We provide complete waterproofing Brisbane services, including preparation, application, and inspection. Our services cover:
- Bathroom and wet area waterproofing
- Basement and subfloor waterproofing
- Balcony and rooftop waterproofing
- Retaining wall and foundation waterproofing
- Commercial and industrial waterproofing solutions
- Repairs and resealing of failed waterproofing systems
By combining high-quality membranes, sealants, and drainage solutions, we ensure your property is fully protected against leaks and seepage.





Hear From Our Clients
Benefits of Hiring a Professional Waterproofer
A licensed waterproofer provides expertise and long-lasting results that DIY methods simply can’t match. Benefits include:
- Prevents mould, mildew, and rising damp
- Protects structural integrity of buildings
- Reduces risk of costly water damage repairs
- Ensures compliance with Australian Standards
- Adds value and longevity to your property
With Brisbane’s heavy rainfall and humid climate, professional waterproofing is one of the most important investments you can make.


Why Choose LJM Plumbing for Waterproofing Brisbane?
At LJM Plumbing, Gas and Drainage, we take a comprehensive approach to waterproofing. We don’t just apply membranes – we integrate waterproofing with effective plumbing and drainage solutions to deliver complete protection. Our clients choose us because we offer:
- Licensed and insured waterproofing specialists
- More than 25 years of plumbing and drainage expertise
- Custom waterproofing systems for homes and businesses
- High-quality materials built for Australian conditions
- Transparent pricing with no hidden costs
- Full compliance with Queensland building codes
We handle projects of all sizes, from small bathroom renovations to large-scale commercial waterproofing.
Long-Term Protection Against Water Damage

Frequently Asked Questions
- What does a waterproofer do?
A waterproofer applies protective membranes and sealants to areas prone to water exposure, preventing leaks and damage.
- Do you provide waterproofing for bathrooms and wet areas?
Yes. We specialise in bathroom, laundry, and kitchen waterproofing to prevent leaks and mould.
- Can you waterproof basements and retaining walls?
Absolutely. We provide complete waterproofing Brisbane solutions for below-ground areas and retaining walls to stop seepage.
- How long does waterproofing last?
High-quality waterproofing can last 10–15 years or more, depending on the materials used and maintenance.
- Do you repair failed waterproofing?
Yes. We assess failed systems, remove defective materials, and install new, compliant waterproofing solutions.
- Is waterproofing required by law in Brisbane?
Yes. Waterproofing in wet areas must comply with Australian Standards (AS 3740) and Queensland building regulations.
- Do you provide commercial waterproofing services?
Yes. We handle everything from apartment complexes to industrial facilities.
For expert waterproofing Brisbane, contact LJM Plumbing, Gas and Drainage today. Our professional waterproofer team will protect your property with reliable, long-lasting solutions.
