Welcome to Jacks Waterproofing NSW in Double Bay

We are the ultimate waterproofing company in Double Bay

Jack’s Waterproofing provides premium waterproofing services for domestic and commercial interiors and exteriors in Double Bay. Whether you’re remodeling an old retro bathroom or constructing your dream home, we can manage any tasks of all sizes and problems. Visit our website to find out more about the services we provide or call 0432 334 355 today to chat with among our friendly team members.

Why us?


Jack’s Waterproofing is well known for offering quality roof services for some of the more difficult jobs in the area. Whether you are constructing your first home, an architecturally created masterpiece or a commercial home, Jack’s Waterproofing can offer you a quick and trusted service from a skilled and dedicated roof team. You need to consider a Jack’s waterproofing shower option to fix the leaking shower once and for all.

We offer waterproofing solutions in Double Bay and Darling Point, Edgecliff, Point Piper, Woollahra, Rushcutters Bay, Bondi Junction, Bellevue Hill, Elizabeth Bay, Paddington, Potts Point. Call us today!

It is essential that you pick the right service proper for your circumstance, something which your local Megasealed ™ expert will help you with upon estimating at the site.

Our Double Bay Services

bathroom wet areas Double BayWater penetration through ceramic tiles in bath/shower rooms and other wet areas triggered by leaks, floods, substrate motion, and grout failure can lead to substantial expenses and much inconvenience to all those parties involved.

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

Terraces and balconies can vary in size & building – this will affect the selection of the waterproof membrane. There are many considerations to take into consideration consisting of deck movement, differential movement, drain, waterproofing connection at expansion joints, drain outlets, deck surfaces and most important what is below the balcony or terrace– car parking? Habitable space?

Jack’s waterproofing can provide a suitable product for your needs.

Modern flat roofings tend to utilize a constant membrane covering which can better withstand swimming pools of standing water. These membranes are used as a constant sheet where possible, though sealants and heat welding is available to permit bonding multiple sheets and handling structures penetrating the roofing system surface and forms a homogenous layer resistant to moisture.

Spalling likewise referred to as Concrete Cancer is an outcome of water entering brick, concrete or natural stone and forcing the surface to peel, pop out or exfoliate. This is because there is salt in water. Salt pushes external from the within. Ultimately, spalling can cause collapsing and damage of a structure.

Structure or remediation of water features. We are qualified plumbers in Double Bay.

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

Double Bay concrete crack repairConcrete fracture repairs and concrete cancer treatment. High pressure fracture injection to stop leaks.

Sealing new and existing water tanks.

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

Our Basement Renovation Begins With Long-term Waterproofing

basement waterproofing Double BayBasement improvement can add lots of additional home to your home but beware; basement water leak might put a real damper on your hopes if not correctly remedied.
There are 2 conditions you must resolve for a dry basement, real water leak, and condensation. Water leak is a quite apparent concern to homeowners but many are unaware of the problems that high humidity can cause to a finished basement.

Humidity Problems

Because a basement is listed below ground, it will be naturally cooler than the floors above ground. When warmer air from upstairs or outside enters the basement, it diminishes in volume as it cools. This shrinking or “condensing” of the air volume leads to higher humidity. Everything permeable in your basement will absorb the additional moisture in the air and cause a foul odor. Dehumidifiers are home appliances which mechanically eliminate the unwanted additional humidity from your basement. A great dehumidifier is a need to if you plan on redesigning your basement. Even a basement that doesn’t leak will take advantage of utilizing a dehumidifier.

Water Leak

Without doubt, water leak into the basement must be permanently remedied before you begin your improvement project. Start by fixing apparent sources of the problem; broken or non-existent gutter, downspouts emptying next to the foundation, ground outside sloping toward the home, exposed underground windows, and so on
. After you exhaust all preventative measures outside, attempt to recognize areas inside where you are experiencing the leak. If a corner of the basement seems to be a particular problem, once again, look outside at your rain gutter downspouts. If you see fractures in the walls leaking, some of these can be repaired with hydraulic cement or fracture injection. If water seems to be can be found in from an isolated area, setting up a sump pump listed below floor level can decrease the water level and underground hydrostatic pressure because area. If you are unsure or your problems seem to be widespread, it might be best to hire a structure inspector, engineer or other expert to help you recognize and solve your problem. There are a range of services available to solve your leak problems. These include; outside excavating, re-parging your walls, interior or exterior drain systems, interior cove systems, grout or epoxy injection and others. Most of these options will require a professional.

Basement Renovation Starts

remodelling Double BayIf you can spare the additional space, 2X6s are even better because they enable room for more insulation. Never, under any situations, nail furring strips onto the walls. Permeating the foundation will compromise its barrier versus 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 break and ultimately need to be changed. Glued down carpets creates a real problem later on when attempting to eliminate it. Tell your carpet installer to utilize building adhesive to install the carpet tack strips around the border. Do not enable them to drive nails into the cement floor.


With some common sense, building technique, a dependable waterproofing system, and humidity control, and a great waterproofing company like Jacks Waterproofing NSW, you can take pleasure in a great deal of additional home by redesigning your basement in Double Bay.

Call Us Now

0432 334 355