Welcome to Jacks Waterproofing NSW in Randwick

We are the ultimate waterproofing company in Randwick

Jack’s Waterproofing provides premium waterproofing services for residential and commercial exterior and interiors in Randwick. Whether you’re renovating an old retro bathroom or developing your dream house, we can handle any tasks of all sizes and problems. Visit our site to learn more about the services we provide or call 0432 334 355 today to chat with one of our friendly employee.

Why us?


Jack’s Waterproofing is well known for providing quality roofing services for a few of the more difficult tasks in the area. Whether you are developing your very first house, an architecturally designed masterpiece or a commercial residence, Jack’s Waterproofing can offer you a fast and trustworthy service from a knowledgeable and dedicated roofing team. You need to think about a Jack’s waterproofing shower alternative to fix the dripping shower once and for all.

We offer waterproofing solutions in Randwick and Coogee, Queens Park, Kensington, Clovelly, Kingsford, Waverley, Daceyville, Centennial Park, Bronte, Bondi Junction. Call us today!

It‘s important that you pick the best service suitable for your scenario, something which your local Megasealed ™ specialist will help you with upon pricing estimate at the site.

Our Randwick Services

bathroom wet areas RandwickWater penetration through ceramic tiles in bath/shower rooms and other wet areas triggered by leakages, floods, substrate movement, and grout failure can cause comprehensive expenses and much trouble to all those celebrations included.

Jack’s waterproofing can install an authorized waterproofing system to prevent these problems listed above.

Balconies and terraces can differ in size & building – this will influence the selection of the waterproof membrane. There are lots of factors to consider to take into account including deck movement, differential movement, drain, waterproofing connection at expansion joints, drain outlets, deck surfaces and most important what is below the balcony or terrace– vehicle parking? Habitable space?

Jack’s waterproofing can provide an appropriate product for your needs.

Modern flat roofings tend to use a constant membrane covering which can much better resist swimming pools of standing water. These membranes are used as a constant sheet where possible, though sealants and heat welding is offered to allow for bonding several sheets and dealing with structures penetrating the roofing system surface area and forms a homogenous layer invulnerable to moisture.

Spalling likewise called Concrete Cancer is an outcome of water getting in brick, concrete or natural stone and forcing the surface area to peel, pop out or flake off. This is because there is salt in water. Salt presses outside from the within. Eventually, spalling can trigger falling apart and damage of a structure.

Building or repair of water features. We are qualified plumbing professionals in Randwick.

Internal and external areas in colored non-slip coverings. Treatment of tiled areas to give more grip.

Randwick concrete crack repairConcrete crack repair work and concrete cancer treatment. High pressure crack injection to stop leakages.

Sealing new and current water tanks.

Expert in negative side waterproofing of internal and external retaining walls.

Our Basement Renovation Begins With Irreversible Waterproofing

basement waterproofing RandwickBasement renovation can add lots of additional living space to your house but beware; basement water leak might put a real damper on your hopes if not properly corrected.
There are 2 conditions you must attend to for a dry basement, actual water leak, and condensation. Water leak is a pretty obvious concern to property owners but lots of are unaware of the problems that high humidity can trigger to a completed basement.

Humidity Issues

Because a basement is below ground, it will be naturally cooler than the floors above ground. When warmer air from upstairs or outside gets in the basement, it shrinks in volume as it cools. This shrinking or “condensing” of the air volume leads to higher humidity. Everything porous in your basement will take in the additional moisture in the air and trigger a nasty smell. Dehumidifiers are appliances which mechanically remove the undesirable additional humidity from your basement. A good dehumidifier is a should if you intend on renovating your basement. Even a basement that does not leakage will take advantage of using a dehumidifier.

Water Leak

Without doubt, water leak into the basement must be completely corrected before you begin your renovation project. Start by remedying obvious sources of the problem; broken or non-existent gutter, downspouts emptying next to the structure, ground outside sloping towards the house, uncovered underground windows, etc
. After you exhaust all preventative measures outside, try to recognize areas inside where you are experiencing the leak. If a corner of the basement seems to be a specific problem, again, look outside at your gutter downspouts. If you see cracks in the walls dripping, a few of these can be repaired with hydraulic cement or crack injection. If water seems to be coming in from a separated area, setting up a sump pump below floor level can reduce the water table and underground hydrostatic pressure because area. If you are unsure or your problems appear to be extensive, it might be best to employ a building inspector, engineer or other expert to help you recognize and solve your problem. There are a variety of services offered to solve your leak problems. These include; outside excavating, re-parging your walls, interior or outside drain systems, interior cove systems, grout or epoxy injection and others. The majority of these alternatives will need an expert.

Basement Renovation Begins

remodelling RandwickIf you can spare the additional space, 2X6s are even much better because they enable space for more insulation. Never ever, under any circumstances, nail furring strips onto the walls. Penetrating the structure will jeopardize its barrier against water.
Use building adhesive rather than nails or screws to adhere your bottom wall plate to the floor. It’s okay to nail the upper wall plates into the upper floor joists.
Do not glue down your basement carpet. Carpet is something that is going to wear and eventually need to be replaced. Glued down carpets produces a real problem in the future when trying to eliminate it. Inform your carpet installer to use building adhesive to install the carpet tack strips around the perimeter. Do not enable them to drive nails into the cement floor.


With some good sense, building method, a dependable waterproofing system, and humidity control, and an excellent waterproofing company like Jacks Waterproofing NSW, you can delight in a great deal of additional living space by renovating your basement in Randwick.

Call Us Now

0432 334 355