Bathroom & Kitchen Waterproofing in Mittagong

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Protecting your property from moisture and leaks.

Tiled shower with a handheld showerhead and built-in wall shelf. — The Plumbing & Drainage Co. in Mittagong, NSW

Protect Your Home From Mould & Mildew

Waterproofing is an essential aspect of bathroom and kitchen renovations, as well as for any new build. It protects your home's structure from water damage, mould and mildew growth and deterioration of building materials.


At The Plumbing & Drainage Co., we provide professional waterproofing services to ensure your home remains safe and dry. We use high-quality waterproofing products and techniques to ensure a long-lasting and effective solution.


Our waterproofing services are available throughout the Southern Highlands, including Mittagong, Moss Vale and Bowral. We also offer renovation plumbing, hot water system repair, gas fitting and more. Give us a call on 0413 640 372 today.

Minimalist white bathroom with freestanding tub and glass shower enclosure — The Plumbing & Drainage Co. in Mittagong, NSW

Frequently Asked Questions

  • Why is waterproofing important in wet areas?

    Waterproofing helps protect walls, floors and structural areas from moisture damage in wet areas such as bathrooms, laundries and kitchens. Without proper waterproofing, water can seep beneath tiles and surfaces, leading to mould growth, rotting materials and costly structural repairs over time.

  • How long does waterproofing last?

    Quality waterproofing can last for many years when installed correctly and maintained properly. The lifespan can vary depending on the products used, property conditions, moisture exposure and the quality of the original installation. Damage to tiles, grout or plumbing may also affect waterproofing performance over time.

  • What are the signs of failed waterproofing?

    Common signs of failed waterproofing include cracked grout, peeling paint, damp smells, mould growth, bubbling walls, loose tiles or visible water damage in nearby rooms. These issues may indicate water is leaking beneath surfaces and should be inspected before more serious damage develops.

Modern Bathroom Vanity With Round Sink, Gold Faucet, and Wall Mirror — The Plumbing & Drainage Co. in Mittagong, NSW

Our Waterproofing Services

  • Bathroom Waterproofing: Our team has the expertise to waterproof your entire bathroom, including shower recesses, floors and walls. We use a combination of sheet and liquid membrane systems to ensure complete protection from water damage.


  • Kitchen Waterproofing: Having a watertight kitchen is essential for preserving the integrity of your home's structure. Our experienced team will thoroughly waterproof your kitchen, including benchtops, splashbacks and floors.



  • Remedial Waterproofing: If you have had previous waterproofing work done that hasn't been effective, our team can provide remedial waterproofing to fix the issue. We'll thoroughly inspect and identify the problem areas, then implement a long-lasting solution to ensure your home remains protected.