Thomastown is a working suburb. Alongside the housing there is a substantial industrial and commercial pocket, enough that several of the waterproofing product manufacturers and suppliers the trade buys from are based here. That shapes the work. A waterproofing job in Thomastown is as likely to be a warehouse roof, a plant-room floor or a strata block as it is a family bathroom, and those jobs are quoted, staged and certified differently.
We handle both. This page covers each in turn.
Commercial and industrial waterproofing in Thomastown
Commercial work is a different animal to a domestic bathroom, and pretending otherwise is how projects go wrong.
On commercial and industrial buildings around Thomastown, our commercial waterproofing covers:
- Rooftop and external waterproofing on warehouses, workshops and offices
- Basement waterproofing and below-ground tanking
- Retaining wall waterproofing
- Plant rooms, amenities and other internal wet areas
- Balconies, terraces and podium areas on strata and mixed-use buildings
- Screeding to correct falls where water is pooling instead of draining
What matters most to the builders, property managers and strata committees we work with is usually not the membrane itself. It is access, staging around an operating business, and getting the documentation right at the end. We plan the work around your operation. If a section of roof or a wet area has to stay in service while we work, tell us at the walkthrough and we will stage it.
0433 201 995
Comprehensive Waterproofing Services
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Swimming Pool WaterproofingYour swimming pool represents a significant investment that deserves proper protection. At 3K Waterproofing, we specialise in thorough swimming pool waterproofing services throughout Melbourne and Greater Melbourne. Our expert team makes certain your pool remains watertight, preventing costly structural damage and water loss whilst maintaining the beauty of your outdoor oasis. Whether you’re building a […]
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Sheet Membrane WaterproofingSheet membrane waterproofing is a highly effective method of protection that involves applying pre-formed sheets of waterproof material to surfaces like concrete slabs, foundations, balconies, and rooftops. Once installed, these membranes create a durable, impermeable barrier that prevents water ingress and protects structures from long-term damage. Sheet membranes are ideal for both above-ground and below-ground […]
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Basement WaterproofingMelbourne’s unpredictable weather patterns and seasonal rainfall make basement waterproofing vital for protecting your home’s structural integrity. At 3K Waterproofing, we specialise in thorough basement waterproofing services that safeguard your property from moisture damage, rising damp, and foundation issues. Our expert team services all Melbourne suburbs, delivering reliable protection that stands the test of time. […]
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Balcony & Terrace WaterproofingBalconies are some of the most exposed areas of your property. When storms or sudden downpours occur, it really pays to have the right waterproofing measures in place. This is where we step in. From apartment blocks to office spaces, we offer affordable balcony waterproofing services across Melbourne. These services are handled by licensed contractors, […]
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Commercial WaterproofingIs your business vulnerable to water-related damage? The situation may be more serious than you think! Luckily, 3K Waterproofing is here to deliver professional waterproofing solutions for local offices, retail spaces, industrial buildings, and strata properties across the city of Melbourne. Drawing on years of knowledge and experience, our licensed team understands the unique demands […]
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Bathroom WaterproofingLooking to prevent water ingress, moisture and mould? We offer a wide range of bathroom waterproofing services in Melbourne. From existing bathrooms to new builds, our expert team can ensure the bathroom has complete protection for years to come. We’re a family-owned and operated business that takes great pride in the standard of our service. […]
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Foundation WaterproofingWhen Melbourne’s unpredictable weather strikes, your home’s foundation bears the brunt. At 3K Waterproofing, we specialise in professional foundation waterproofing services that safeguard your property from costly water damage. Our expert team delivers lasting protection using advanced membrane systems and proven techniques, making certain that your home stands strong against moisture infiltration year after year. […]
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Green Roof WaterproofingTransform your Melbourne property with professional green roof waterproofing that protects both your building and the environment. At 3K Waterproofing, we specialise in creating sustainable rooftop gardens and living roof systems that withstand Melbourne’s unpredictable weather while improving your property’s value and environmental footprint. Our expert team delivers thorough waterproofing services specifically designed for green […]
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Planter Box WaterproofingTransform your outdoor spaces with confidence knowing 3K Waterproofing professionally waterproofs your planter boxes. We specialise in protecting Melbourne gardens from water damage using advanced membrane systems that keep your structures sound and your plants thriving. From rooftop gardens in South Yarra to backyard planters in Frankston, our expert team delivers lasting protection that stands […]
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Retainer Wall WaterproofingMelbourne’s unpredictable weather patterns and varying soil conditions make retaining wall waterproofing essential for protecting your property. At 3K Waterproofing, we specialise in thorough waterproofing services that prevent water damage, soil erosion, and structural deterioration. Our expert team delivers premium retaining wall protection across Melbourne, from Geelong to Glen Waverley, using advanced membrane systems and […]
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Rooftop WaterproofingFrom storms to sudden downpours, rooftops are constantly vulnerable to the elements–especially if they don’t have the proper waterproofing measures in place. The good news? We’re ready to step in and lend a helping hand. We offer affordable rooftop waterproofing solutions across Melbourne, and have licensed contractors with years of in-field experience. Whether it’s for […]
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Residential waterproofing in Thomastown
For homeowners the work is the familiar list: bathrooms, ensuites, laundries and other wet areas, balconies and terraces, and external waterproofing where water is getting into the building.
The most common call we get is a shower that has been leaking into a wall or a neighbouring room. By the time it is visible, the damage is usually not confined to the bathroom. We would rather look at it early and tell you it is a small job than open it up later and find the frame has been wet for two years.
Each service has its own page with the technical detail on how that system is built up. This page is about how those jobs run in Thomastown.
Waterproofing systems we work with
We apply sheet membrane, liquid membrane, polyurethane and cementitious systems, and we screed for drainage.
There is no single best system. There is a system that suits your substrate, your exposure and what is going on top of it, applied within the manufacturer’s specification. Industrial substrates and traffic loads push toward different products than a domestic bathroom floor does. We will tell you at the walkthrough which system we are recommending and why.
Waterproofing over an existing membrane
This is one of the most common questions we get, and the answer is genuinely “it depends”.
Sometimes an existing membrane can be overcoated, provided it is sound, compatible with the new product and properly prepared. Often it cannot, and the honest answer is that the old system has to come up. Overcoating a failed or incompatible membrane buys you a year or two and then you pay for the job twice.
We will tell you which situation you are in after we have looked at it. If you have been told elsewhere that a quick overcoat will fix a failing area, it is worth a second opinion.
Secure Your Space with Expert Waterproofing
Contact us now for a free waterproofing quote and expert advice. Call us at 0433 201 995
Our Proven Waterproofing Process
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Step 1Free Inspection & ConsultationWe start with a thorough property check to identify leaks, cracks, and problem areas.
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Step 2Custom WaterproofingOur experts create a tailored solution with transparent pricing and the best methods.
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Step 3Professional ApplicationWe use high-quality materials and proven techniques to ensure long-lasting protection.
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Step 4Final Check & GuaranteeA detailed inspection is done, and we provide maintenance tips plus a service guarantee.
What a Thomastown job costs
We do not quote waterproofing by the square metre sight unseen. A warehouse roof and an ensuite are not the same unit of work, and even two similar bathrooms price differently once you factor in what has to be stripped back.
Our process is the same for a homeowner and a facilities manager: send us the job details, we come out for a free, no-obligation on-site walkthrough, and you get a clear quote and timeline before we start. Honest pricing, no hidden costs, scoped to what the job actually needs.
For commercial work, the walkthrough is also where we work out staging and access, because those affect the price more than most people expect.
Compliance, standards and certificates
We comply with the Australian standards that apply to waterproofing in Victoria, and with the manufacturer’s recommendations for every product we apply. Both matter. A compliant product installed outside its specified use is not a compliant installation, and it is the kind of thing that surfaces in a defect inspection rather than on handover day.
Where your job needs a waterproofing certificate, we issue one. For builders and property managers closing out a stage, that document is the point of the exercise.
How we work
Send through the details of the job. We arrange a free on-site walkthrough and assess what is actually needed, including access and staging if the building is in use. You get a clear quote and a timeline. Our licensed and insured team does the work with premium-grade materials, keeps the site clean and keeps disruption to a minimum. We finish, often ahead of the predicted date, with guaranteed quality on the work.
3K Waterproofing on Melbourne’s northern side
Brothers Michael (Micky) and Joseph (Joey) started 3K Waterproofing in 2023 as a family-owned business, and it has stayed that way. Joey handles on-site management and the awkward problems; Micky handles the calls, quotes and planning. Over 150 clients later, we work across Melbourne and Greater Melbourne on both residential and commercial property.
Our full credentials (licensing, insurance, compliance and the guarantees that come with our work) are set out on our service pages and the About page.
Talk to us about your Thomastown job
Warehouse roof, plant room or family bathroom, the first step is the same. Call 0433 201 995 or email info@3kwaterproofing.com.au, Monday to Friday, 7:00am–7:00pm, and we will book your free on-site walkthrough.
See Our Work in Action
Why Choose 3K Waterproofing in Thomastown?
Run by brothers Micky and Joey, 3K Waterproofing combines decades of construction knowledge with modern waterproofing techniques. Since 2023, we’ve built our reputation on:
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ExperienceSpecialists in both residential and commercial waterproofing
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Quality assurance
Using premium materials for every project
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Professional service
Clean, productive work with minimal disruption
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Full insurance coverage
Complete peace of mind for property owners
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Transparent pricing
Clear quotes with no hidden costs
There is no single best one. Industrial substrates and traffic loads point to different products than a domestic bathroom floor. We select from your substrate, exposure and the manufacturer’s specification, and we tell you why.
Sometimes, if the existing system is sound, compatible and properly prepared. Often it cannot, and the old system has to come up. Overcoating something that has already failed buys a year and then you pay twice.
The certificate is part of the job rather than a separate product. Where your work requires one, it is issued on completion and the cost sits inside the quote you approved.
The cheapest job that lasts is the one where the preparation is done properly the first time. The genuinely cheap options tend to be skipped preparation or a system used outside its specification, and both surface again within a few years.
This is the question we would ask too, and on a commercial building it is the one that matters most. It gets decided at the walkthrough, against the substrate and the manufacturer’s specification.
Areas
From the heart of the CBD to the Mornington Peninsula, 3K Waterproofing is a Melbourne based team ready to assist with residential, commercial, and industrial projects across the city.
- Abbotsford
- Balwyn
- Berwick
- Brighton
- Brunswick
- Bulleen
- Bundoora
- Camberwell
- Caroline Springs
- Clayton
- Clyde North
- Coburg
- Doncaster
- Essendon
- Frankston
- Geelong
- Glen Iris
- Glen Waverley
- Greenvale
- Hadfield
- Hampton
- Hawthorn
- Ivanhoe
- Keilor
- Kew
- Malvern
- Mickleham
- Mornington Peninsula
- Northcote
- Pascoe Vale
- Point Cook
- Prahran
- Preston
- Reservoir
- Richmond
- Rowville
- South Yarra
- St Kilda
- Sunbury
- Sunshine
- Taylors Lakes
- Thomastown
- Toorak
- Werribee
- Wheelers Hill
- Wollert
