Best Waterproofing Services in Sydney

We reviewed 139 waterproofing companies in Sydney to find the best in the city. If you’re looking for waterproofing near you, you’ll want to trust a Top Expert.

Best Waterproofing Services in Sydney Logo
By Christian Sculthorp
Last edited on: March 22, 2023
We do all of the research, so you don't have to!

Looking for a reliable waterproofing service in Sydney? Our team has scoured the city to bring you the top-rated waterproofing services, taking into account factors such as customer satisfaction, quality of work, and affordability. 

Whether you’re dealing with a leaky basement or need to waterproof your entire home or office, our list of the best waterproofing services in Sydney is sure to have you covered. Trust Top Experts to help you make an informed decision and protect your property from the elements.

Top 15 Waterproofing Services in Sydney

We used the following criteria to help determine the top waterproofing services in Sydney: 

Table of Contents
Thrifty Seal Logo

1. Thrifty Seal Pty Ltd

Thrifty Seal Pty Ltd Website
Address:1 Palmer Street, Cammeray NSW, 2062
Phone:1300 397 604
Reviews:4.8/5 ⭐ from 90 reviews across 3 profiles
Services:Leaking Showers Service, Silicone Seal Replacement Service, Leaking Balconies Service, Bathroom Transformations Service, Tiling Service

With a reputation for quality workmanship, Thrifty Seal is a Sydney-based company specialising in waterproofing and sealing projects. They can take care of their client’s leaking shower or bathroom without removing any tiles. 

The company serves clients from Abbotsbury, Annandale, Alexandria, Balmain, Bankstown, Cremorne, Crows Nest, Dolls Point, Darling Point, East Sydney, Ellis Lane, Fairfield East, and a lot more. 

Thrifty Seal offers three grout line options: sanded grout, unsanded grout, and epoxy grout. The sanded grout is very ideal for large grout joints on outdoor tiled areas like balconies. On the other hand, unsanded grout is perfect for smaller grout joints. 

The epoxy grout is used for shower floors, bathroom floors, kitchen floors, and splashbacks. The office of Thrifty Seal is on Palmer Street, Cammeray, NSW.

Customer Review Highlights:

“Thrifty Seal were fantastic to deal with, right from my initial call, straight through to the completion of re-sealing my whole shower. They were professional, on time and friendly. My shower, once an eyesore of my bathroom, now looks new and I could not be happier. I would highly recommend them, if you are looking to improve your bathroom without the expense & trouble of an entire renovation.”

2. Top Marks Waterproofing Pty Ltd

Address:18/63-65 St Marks Rd, Randwick NSW 2031
Phone:0474 918 488
Reviews:5/5 ⭐ from 37 reviews across 3 profiles
Services:Residential Waterproofing Service, Commercial Waterproofing Service, Strata Waterproofing Service

Top Marks Waterproofing Pty Ltd is a Sydney-based company of licensed waterproofing professionals with over 20 years of combined experience. 

They offer a wide range of waterproofing services for rooftops, bathrooms, balconies, and planter boxes. The experienced team of Top Marks is familiar with the latest waterproofing technology and techniques, and they pride themselves on providing high-quality workmanship at competitive prices. 

They specialise in Residential Waterproofing (leaks in wet areas of the house), Commercial Waterproofing (all types of Waterproofing repairs in the building or commercial area), and Strata Waterproofing: leaking balconies, flooded courtyards or garages, water drips from ceilings and nasty concrete cancers. 

Gail Dempsey, one of the customers, commented that the team of Top Marks was extremely helpful and quick to respond to any enquiry. The work performed was professional and guaranteed, he added.

Customer Review Highlights:

“Excellent service throughout the job and the results are great! We had a leaking roof for some time and since the job was done we have had no problem. The follow up service that was also provided on another unrelated matter was very much appreciated. Highly recommended in all aspects. Would certainly recommend using Top Marks Waterproofing.”

Shower Seal of Approval Logo

3. Shower Seal of Approval

Shower Seal of Approval Website
Address:Sydney, NSW
Phone:0424 508 040
Reviews:5/5 ⭐ from 28 reviews across 2 profiles
Services:Non-Invasive Leak Repairs for Wet Areas Service, Re-grouting Service, Epoxy Grout Specialists Service, Residential Service, Commercial Service, Strata Service

Shower Seal of Approval provides homeowners and businesses with comprehensive leak repair solutions. They specialize in non-invasive leak repairs, meaning that there is no need to remove tiles in order to fix the problem. 

This process results in minimal disruption and allows their team of experts to quickly and efficiently solve the issue. In addition to leak repair, they also offer re-grouting, epoxy grout specialists, strata, residential and commercial waterproofing, and rejuvenation services. 

They are a highly experienced and qualified team that is dedicated to providing quality services and products to their customers. 

Shower Seal provides a full warranty on all its work and offers free, no-obligation quotes. The team services Sydney and the surrounding areas.

Customer Review Highlights:

“Ben at Shower Seal of Approval is most professional, friendly and obliging at all times. He redid the grout when we were not totally happy with the colour (even though we picked it), kept us updated on arrival times, cleaned up after the job and overall did a cracking job. Cannot recommend Ben at Shower Seal of Approval highly enough.”

Sydney Waterproofing Services Logo

4. Sydney Waterproofing Services

Address:Gordon Rd, Auburn NSW 2144
Phone:1300 488 660
Reviews:5/5 ⭐ from 27 reviews across 2 profiles
Services:Bathroom Waterproofing Service, Pool Waterproofing Service, Ramp Waterproofing Service, Balcony Waterproofing Service, Pond Waterproofing Service, Rooftop Waterproofing Service, Kitchen and Laundry Waterproofing Service, Planterbox Waterproofing Service, Caulking and Sealing Service

Sydney Waterproofing Services is one of the leading waterproofing companies in Sydney that started in 2016. With over 20 years of combined experience, their team of experts are confident in tackling all of their client’s waterproofing requirements. 

The company pride itself on its quality workmanship and outstanding customer service, which earned them a reputation as the go-to waterproofing company in the industry. 

They offer bathroom waterproofing, balcony waterproofing, kitchen and laundry waterproofing, pool waterproofing, pond waterproofing, planter box waterproofing, ramp waterproofing, rooftop waterproofing, caulking, and sealing. In addition, they also provide proper installation of waterproofing membranes, bond breakers, shower recesses and drainage systems. 

Sydney Waterproofing Services has a wealth of experience in both commercial and residential waterproofing, and its services are available across Sydney and the surrounding areas. 

The company offers a comprehensive warranty on all of its work, so clients can be assured that their investment is protected. 

Sydney Waterproofing is a Master Builders Association Member and an Australian Institute of Waterproofing Member. 

Among their partners are Durotech, Tremco, Projex, Ardex, BASF, Bostik, Parchem, DRIZORO, GCP Applied Technology, Building Trust, GRIPSET, and MAPEI (products and tools sourcing).

Customer Review Highlights:

“Great job done by Tom . Previous tiler wouldn’t do the job because tiles were mosaic and harder to do. No problem for this company. Tom even stayed back until 6.30 to make sure he got the job completed. Finished product is beautiful. Woul recommend anytime. Well done.”

5. E&A Sealing Solutions

Address:Sydney, NSW
Phone:0411 437 619
Reviews:5/5 ⭐ from 26 reviews across 3 profiles
Services:Internal Caulking Service, External Caulking Service, Waterproofing Service

E&A Sealing Solutions is a family-owned caulking and waterproofing business. They have been providing expert caulking services and quality waterproofing with high-standard products. 

In their decades of experience, they have proven knowledge in safeguarding and maintaining buildings in Australia. They can take on your caulking needs, whether in your bathrooms, kitchens, or external areas of your property. 

They provide waterproofing services to your bathrooms and kitchen. They can handle repair, new building caulking, joint sealing, or waterproofing of roofs/facades/wet areas/retaining walls, and utilise some of the most trusted brands in the industry, including Soudal, Ardex, and Bostik. 

For all these services, E&A Sealing Solutions guarantees excellent installation without any hidden cost. Their office is located in Parramatta, Sydney. They welcome customers on Mondays to Fridays from 7:00 a.m. to 5:00 p.m. and Saturdays from 8:00 a.m. to 3:00 p.m.

Customer Review Highlights:

“We engaged E & A Sealing to seal our floor skirting and kitchen kickboards. Andre and his team were extremely professional, patient, reliable, respectful and very detailed; they did an awesome job with sealing all the required areas!”

United Trade Links Logo

6. United Trade Links

United Trade Links Logo
Address:Sydney, NSW
Phone:1800 490 049
Reviews:4.7/5 ⭐ from 40 reviews across 2 profiles
Services:Water-Proofing Service, Roof Restoration Service, Painting and Decorating Service, Tile and Grout Restoration Service, High Pressure Cleaning Service, Resurfacing and Concrete Service, Home Renovation Service, Remodeling Service, Building Maintenance, Repairs and Upgrades Service

United Trade Links offers various construction services with quality and expert results. They provide water-proofing services, roof restoration, painting and decorating, tile and grout restoration, high-pressure cleaning, home renovation, building maintenance, upgrades, and repairs. 

They have a team of fully-equipped and professional builders trained to follow high standards of quality that align with the client’s demands. 

Sam Saman, Founder and CEO of United Trade Links, is at the forefront of keeping his team customer service-oriented. 

They offer services to a wide range of sectors, including residential, commercial, industrial, insurance, strata, and government. 

United Trade Links provides facilities and project management, transaction and portfolio services, and consulting services. This gives their client access to an experienced and knowledgeable team who can provide an all-in-one service. 

They are a renowned government contractor in Sydney, assuring you that you are assisted by people who strictly uphold building codes and construction guidelines.

Customer Review Highlights:

“I had a fantastic and very excellent experience with united trade links for my home renovation . We worked with Sam and David during the initial consultation and design stage who took the time to understand our vision and family needs. During the renovation we worked with David and he’s team who was professional, organised and available anytime we had questions. The trades crew were efficient, professional and tidy throughout the renovation .”

Waterproofing Sydney Logo

7. Waterproofing Sydney

Waterproofing Sydney Website
Address:Sydney, NSW
Phone:01800 490 049
Reviews:4.8/5 ⭐ from 21 reviews across 2 profiles
Services:Bathrooms Waterproofing Service, Planter Boxes Waterproofing Service, Retaining Walls Waterproofing Service, Basement Waterproofing Service, Rooftops Waterproofing Service, Foundation Waterproofing Service, Swimming Pool Waterproofing Service, Balcony and Terrace Waterproofing Service

Waterproofing Sydney provides installation and fixing services for residential waterproofing parts. They have more than 15 years of expertise in waterproofing and are skilled at waterproofing various areas of your home, including your floors, rooftops, balconies, terraces and courtyards, laundry space, basement walls, lift shafts, swimming pools and more. 

All members of their waterproofing team are certified, trained, and qualified, and they only utilise waterproofing technologies and techniques that guarantee quality and long-lasting solutions. 

Waterproofing Sydney caters to waterproofing installation and repair needs around Sydney CBD and the surrounding suburbs, as well as in areas in Richmond and across Campbelltown. 

Besides residential customers, they also extend their services to industrial, strata, government, and commercial industries. Customers have remarked that their services are appropriately priced, and their works come with a written guarantee for a minimum of seven years.

Customer Review Highlights:

“Very honest advice given and saves you a lot of time and money. The quality of workmanship, effort, responsiveness, and the way he explained each step of the roof waterproofing process is second to none. From my initial call to completion of the work, I am thoroughly impressed. If you’re thinking of who to use for your waterproofing, my strong recommendation is waterproofing Sydney.”

8. Waterstop Solutions NSW

Waterstop Solutions NSW Website
Address:Unit 108/14 Loyalty Rd, North Rocks NSW 2151
Phone:02 9346 8308
Reviews:4.6/5 ⭐ from 24 reviews across 2 profiles
Services:Waterproofing Service, Crack Injection Service, Concreate Leak Sealing Service, Rising Damp Service, Concrete Repair Service, Protective Coating Service, Ground Improvement Service, Joint Repair Service, Inspection Service

Waterstop Solutions is a company that has provided leak sealing injections, concrete repair solutions, remedial waterproofing, and industry-leading concrete crack since 2009. 

The company Directors, Chris Anderson and Harold Du Toit, together with its NSW Manager Adrian Schokman, have a shared experience of 60 years in the industry-leading remedial waterproofing and concrete repair industry. 

They have utilised this experience to provide high-quality services and products to their clients across Queensland and New South Wales. 

The company has completed over 10,000 projects, including Clem 7 tunnel, Brisbane City tunnels, airport link tunnel, gateway duplication, cross river rail, West Connex New M5 tunnel, Wivenhoe dam, Green Hill reservoir, and more. 

Some of their clients include BCC, GCCC, Redland Bay Shire Council, Brisbane Motorways, Bayer Crop Science, Clinton Coal, Australand, Frasers, MINC Body Corporates, and Metcash.

Waterstop Solutions is proud to be an Australian, family-owned, and operated company dedicated to providing excellent customer service and quality workmanship. 

The company has eight qualified staff members with a Certificate III in Waterproofing.

Customer Review Highlights:

“Adrian and his team were helpful and responsive and went out of their way to fix my problem. Adrian also helped with his expertise in ensuring my insurance company came to the party to fix the water damage.”

Sydney Waterproofing Services SWPS Logo

9. Sydney Waterproofing Services SWPS

Sydney Waterproofing Services SWPS Website
Address:18 Ritchie St, Riverstone NSW 2765
Phone:1300 949 191
Reviews:4.7/5 ⭐ from 12 reviews across 3 profiles
Services:Wet Area Waterproofing Service, Balcony Waterproofing Service, Pool and Pond Waterproofing Service, High Pressure Cleaning Service, Driveway Coating Service, Floor Leveling Service, Damp Diagnostic Testing Service, Rising Damp Solution Service, Caulking and Sealing Service

Sydney Waterproofing Services has over six years of experience in the field of waterproofing, and their team of qualified technicians are dedicated to providing the top-notch service possible. 

They currently offer a wide range of waterproofing services, including roof waterproofing, basement waterproofing, and wet area waterproofing, since its inception in 2016. 

The team also does balcony waterproofing, floor levelling, driveway coating, high-pressure cleaning, and pool and pond waterproofing in all residential and commercial areas across Sydney and Gerringong, New South Wales. 

In addition, Sydney Waterproofing offers a free consultation service so that the team can assess the client’s individual needs and provide them with a customised quote. 

All staff are certified with a current Certificate III in Waterproofing/General Construction BCG 3140 and compliant with the Waterproofing standard AS 3740. The company partners with Durotech, Bostik, Ardex, GRIPSET, Parchem, and MAPEI.

Customer Review Highlights:

“Aaron from Sydney waterproofing services attended to our water leakage issue throughout side of stairs to the room behind. very professional and explained every step of the way. highly recommended.”

Dr Waterproofing Logo

10. Dr Waterproofing

Address:Sydney, NSW
Phone:02 9099 5275
Reviews:5/5 ⭐ from 11 reviews across 3 profiles
Services:Roof Waterproofing Service, Bathroom Waterproofing Service, Balcony Waterproofing Service, Crack Injection Service, Retaining Wall Waterproofing Service, Basement Waterproofing Service, Planter Box Waterproofing Service, Expansion Joint Service, Water Feature Service

DR Waterproofing provides quality waterproofing solutions around the Greater Sydney Region. Their services were established in 2017, and they have become a dependable provider of waterproofing. 

They are a member of the Master Builders Association. This assures their clients that they are skilled at delivering waterproofing needs. They have expertise in Torch on Membrane, an innovative waterproofing solution great for concrete rooftops or low-angle roofs. 

DR Waterproofing’s specialised team is qualified to provide waterproofing systems for any situation, whether for building construction, a home renovation, or a remedial. They offer waterproofing solutions to companies, public facilities, strata and property owners, as well as building consultants. 

They are also skilled in expansion joints or joint sealing, polyurethane injection for leaking cracks, installing planter boxes, retaining walls, and more.

Customer Review Highlights:

“Dr waterproofing team is very professional team. Their jobs for our site is amazing. Very reliable team. Will definitely refer them to all our related business partner. Thanks Anilton.”

Envirosystems Technologies Logo

11. Envirosystems Technologies

Address:295 Princes Hwy, St Peters NSW 2044
Phone:02 8595 8699
Reviews:5/5 ⭐ from 11 reviews across 2 profiles
Services:Adhesive Service, Coating Service, Flooring Service, Primer Service, Remedial Service, Sealant Service, Tools and Accessories Service, Waterproofing Service

Envirosystems is an Australian manufacturing business that provides protective coatings. With over three decades of service, they have developed their brand into an environmentally-conscious company and a reliable brand for quality, advanced, and valuable products. As their products are made, they focus on sustainability and quality. 

They offer a range of quality products for your building or construction needs. This includes adhesives, sealants, coatings, remedial, flooring, primers, waterproofing, and tools and accessories. 

Envirosystems’ products can be used for residences, commercial properties, educational institutions, hospitals and healthcare centres, infrastructure, and sporting facilities. One of the most prominent buildings that use their products is 1 Denison Street, North Sydney. 

With their impressive background, projects, and immense advocacy for research and development, you know that Envirosystems’ products are dependable at producing high-quality results.

Customer Review Highlights:

“Wow!!! After weeks of to and fro with plumbers / waterproofers, manufacturers and getting lots of false and old fashioned advice – I found the experts!!! Website said it all and so I went there today – so helpful and knowledgeable! Thank you!!! Most comprehensive and easy to understand data sheets too!! And parking…… sometimes it just all works!”

Megasealed Logo

12. Megasealed

Megasealed Website
Address:Sydney, NSW
Phone:1300 658 007
Reviews:4.9/5 ⭐ from 9 reviews across 3 profiles
Services:Leaking Shower Service, Leaking Balcony Service, Bathroom Rejuvenation Service, Leak Detection Service, Bathroom Tiling Solution Service

Megasealed Bathrooms & Balconies was launched in 1996 by Jacques Courtin. He started his business to provide lasting quality leakage repair. Now, Megasealed has grown to provide services to more than 20,000 clients all over the major towns in Australia. 

They are members of the Australian Institute of Waterproofing (AIW), the Housing Industry Association (HIA) and the Master Plumbers Association. They use technology to repair leaking showers without taking out tiles. 

They also help with leaking balconies or terraces using advanced electronic water detection and thermal imaging. Megasealed Bathrooms & Balconies offer their services to homes, businesses, strata, retirement facilities, healthcare centres, and government departments. What’s unique about Megasealed is that they develop their own products. 

This includes Megaclean Green™, a biodegradable, natural, household-grade bathroom cleaner and Megagrip™, an anti-slip product for ceramic tile, natural stone, and other surfaces.

Customer Review Highlights:

“Outstanding job, great person, very professional, would recommend, thank you.”

Poseidon Remedial Waterproofing Logo

13. Poseidon Remedial Waterproofing

Poseidon Remedial Waterproofing Website
Address:Sydney, NSW
Phone:1300 312 519
Reviews:5/5 ⭐ from 9 reviews across 2 profiles
Services:Above Tile Membrane System Service, Floors Waterproofing Service, Rooftops Waterproofing Service. Bathrooms Waterproofing Service, Balconies, terraces & courtyards Waterproofing Service, Laundries Waterproofing Service, Box gutters Waterproofing Service, Planter boxes Waterproofing Service, Retaining walls Waterproofing Service, Basement walls Waterproofing Service, Lift shafts Waterproofing Service, Rooftop Gardens Waterproofing Service

Poseidon Remedial Waterproofing is a provider of waterproofing services across Australia. Established in 2003, they boast years of experience and skill in residential and commercial waterproofing. 

Their team of technicians are qualified and trained, with an excellent background in remedial building. If you choose their services, you know you are in dependable and informed hands. 

They provide waterproofing services for your floors, rooftops, bathrooms, balconies, terraces, courtyards, laundry space, and more. 

They can also help with leaky showers, wet walls behind your shower, mouldy ceilings, mouldy silicone works, and wet tiles. Poseidon Remedial Waterproofing services come with a waterproofing applicator warranty which means they will fix any problems that occur due to their workmanship, for free. 

Their waterproof applicators have expertise in all liquid, water-based poly, bitumen and sheet membrane systems that can cater to any surface you need waterproofing on. 

Clients of Poseidon Remedial Waterproofing compliment their responsive and informative service.

Customer Review Highlights:

“We would highly recommend Poseidon. We received several quotes to fix a couple of leaking external balconies. Poseidon was not the cheapest but stood out with their high-level quote detailing each step of the process to complete the work and their ability to clearly walk you through each stage. Kyri clearly and happily answered any questions as the work progressed giving us the confidence that our money was well spent. The end result was a quality finish and a very happy customer.”

Polyseal Group Australia Logo

14. Polyseal Group Australia

Polyseal Group Australia Website
Address:2/305 Princes Hwy, St Peters NSW 2044
Phone:02 8594 1000
Reviews:4.9/5 ⭐ from 7 reviews across 3 profiles
Services:Building Repair and Refurbishment Service, Concrete Repair and Protection Service, Fire Safety Upgrades Service, Flooring Service, Grouting Service, Jointing Service, Protective Coating Service, Structural Strengthening Service, Waterproofing Service

Polyseal has been one of the leading service providers in the construction and building industry, operating for 33 years in New South Wales, Victoria, Western Australia and Queensland. 

They have maintained their presence by cultivating an experienced team of professionals who are all committed to solving complex technical issues while delivering high-quality end products for customers. The company has completed more than 1000 projects since its inception in 1989. 

Their services include building repair and refurbishment, concrete repair and protection, fire safety upgrades, flooring, grouting, jointing, protective coatings, structural strengthening, and waterproofing. 

Polyseal is a waterproofing specialist that has been working as a subcontractor to some of Australia’s leading first-tier construction firms. 

The company provides remedial expertise to building, asset and infrastructure owners. They worked with Westfield, Mirvac, Lendlease, RioTinto, Multiplex, and Built.

Customer Review Highlights:

“Great service and so informative and practical especially regarding application systems… fantastic!”

Pasco Construction Solutions NSW Logo

15. Pasco Construction Solutions NSW

Pasco Construction Solutions NSW Website
Address:4/14 Tennyson Rd, Gladesville NSW 2111
Phone:02 9817 4441
Reviews:4.6/5 ⭐ from 7 reviews across 1 profile
Services:Silicone and Sealants Service, Waterproofing Service, Primers Service, Waterstop Service, Concrete Repair Service, Adhesives Service

Pasco Construction Solutions NSW is an Australian-owned and operated business that started in Melbourne in 2005. The company’s market knowledge allowed it to identify a gap in the commercial and residential building sector by supplying a comprehensive range of waterproofing and sealant products. 

Pasco Construction Solutions NSW has since grown to become a leading supplier of these products, with a strong reputation for quality and service. 

The company’s product range includes silicones and sealants, adhesives, waterproofing accessories, drainage systems, caulking tools, primers, safety equipment, backing rods, water stop, sealers and floor coatings. 

Pasco Construction Solutions NSW also offers a wide range of technical support services, including concrete repairs, fire protection, and waterproofing. 

Some of the projects they have handled are with Albert Tower Apartments, Toorak Park Apartments, Convention Centre in Melbourne, Westfield Doncaster, HP Office, The Face Apartments, Luna Apartments, Ikea, and more. Pasco Construction Solutions office in NSW is on Tennyson Rd, Gladesville.

Customer Review Highlights:

“Right place to go to for all your waterproofing products.”


In conclusion, when it comes to finding the best waterproofing services in Sydney, it’s important to consider factors such as quality of workmanship, use of quality materials, and attention to detail. By choosing a reliable and experienced waterproofing service, you can ensure that your property is protected against the damaging effects of water and moisture, giving you peace of mind and protecting your investment for years to come.


While it may be possible to perform some waterproofing tasks on your own, it’s always recommended that you hire a professional. A skilled and experienced waterproofing service will have the tools, materials, and expertise needed to ensure that your property is properly protected against water damage.

The duration of the service will depend on the size and complexity of the project. A reliable waterproofing service will provide you with a detailed timeline for the project, including the duration of the work and any necessary follow-up visits.