Reliable Waterproofing Services That Last!

  • Servicing areas from Illawarra & Shoalhaven
  • Expert waterproofing solutions for residential, strata, and remedial projects
  • Clear, upfront pricing with no hidden fees
  • Backed by a 7-year workmanship warranty
  • 100% satisfaction guarantee on all jobs

Start Your Quote!

recent projects

Waterproofing in Action

DD Certified Waterproofing

specialising in residential, strata, and remedial waterproofing solutions.

recent projects

Before & After Examples

Why Homeowners Choose

DD Certified Waterproofing

Expert Waterproofing Solutions

Our team has years of experience in residential, remedial, and strata waterproofing, ensuring high-quality results that last.

Premium Materials for Maximum Protection

We use only industry-leading, durable materials to provide long-term defense against leaks, moisture, and water damage.

100%

Satisfaction Guarantee

We stand by our work with a satisfaction guarantee—if you're unhappy, we’ll make it right. Our goal is to provide you with complete peace of mind.,

Transparent Pricing, No Hidden Fees

Get upfront quotes with no surprises. We believe in honest pricing and delivering real value for your investment.

Seamless, Stress-Free Process

From consultation to completion, we handle everything efficiently, keeping you informed every step of the way.

Proven Track Record & Happy Homeowners

Our work speaks for itself! With many satisfied customers & successful projects, you can trust us to protect your project.

Meet Dan (Founder & Director)

Hi, I’m Dan, the founder of DD Certified Waterproofing. With years of experience in the industry, I’ve seen firsthand how water damage can lead to major structural issues, mold growth, and costly repairs. That’s why I’m committed to providing homeowners with reliable, long-lasting waterproofing solutions that truly stand the test of time.


At DD Certified Waterproofing, we follow a simple, hassle-free process to protect your home—no hidden surprises, just quality workmanship you can trust. We use only premium materials to ensure the best results, and I personally stand behind every job with a 100% satisfaction guarantee.


Whether it’s a leaky bathroom, damp basement, or a wet balcony, my team and I are here to help. Let’s make your home watertight and worry-free. Get in touch today for a free quote!

Call ME today

DD Certifiedwaterproofing PRojects

More Completed Projects

FREQUENTLY ASKED QUESTION

Finding Solutions for Residential Property

  • How do I know if my property needs waterproofing?

    Signs include water stains, mould growth, musty odours, or visible cracks in walls and foundations. If you notice any of these, it’s time to get a professional inspection.

  • How long does the waterproofing process take?

    The duration depends on the size and complexity of the project. Most residential waterproofing jobs are completed within 1–3 days.

  • Do you offer warranties for your waterproofing services?

    Yes, we provide warranties ranging from 5 to 10 years, depending on the service, to ensure peace of mind and long-lasting results.

  • What areas of my property can you waterproof?

    We specialise in waterproofing bathrooms, balconies, basements, rooftops, retaining walls, and other high-moisture areas such as basements, swimming pools and garages.

  • How much does waterproofing cost?

    Costs vary based on the area size and type of waterproofing needed. We offer free quotes with transparent pricing and no hidden fees.

call now

Let’s bring your vision to life!

Schedule Your FREE Quote Today!

Get in touch with our team today to discuss your project. Once you contact us, we’ll provide a consultation, assess your site, and deliver a detailed quote tailored to your needs.