Welcome to Jacks Waterproofing NSW in Double Bay

We are the ultimate waterproofing company in Double Bay

Jack’s Waterproofing uses premium waterproofing services for property and commercial exterior and interiors in Double Bay. Whether you’re remodeling an old retro bathroom or constructing your dream house, we can manage any jobs of all sizes and troubles. 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 a few of the more tough tasks in the area. Whether you are constructing your very first house, an architecturally developed work of art or a commercial dwelling, Jack’s Waterproofing can offer you a quick and trusted service from an experienced and dedicated roof group. You need to consider a Jack’s waterproofing shower alternative to repair 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 choose the right service appropriate for your circumstance, something which your local Megasealed ™ consultant 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 spaces and other wet areas caused by leakages, floods, substrate movement, and grout failure can cause comprehensive expenses and much inconvenience to all those parties included.

Jack’s waterproofing can set up an approved waterproofing system to prevent these problems listed above.

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

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

Modern flat roofing systems tend to utilize a continuous membrane covering which can much better resist swimming pools of standing water. These membranes are applied as a continuous sheet where possible, though sealants and heat welding is available to permit bonding multiple sheets and handling structures permeating the roofing surface and forms a homogenous layer resistant to wetness.

Spalling likewise know as Concrete Cancer is a result of water entering brick, concrete or natural stone and forcing the surface to peel, pop out or flake off. This is because there is salt in water. Salt presses external from the within. Ultimately, spalling can cause collapsing and destruction of a structure.

Building or restoration of water features. We are qualified plumbing professionals in Double Bay.

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

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

Sealing new and current water tanks.

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

Our Basement Renovation Begins With Permanent Waterproofing

basement waterproofing Double BayBasement renovation can add lots of extra living space to your house but beware; basement water leak might put a real damper on your hopes if not correctly fixed.
There are two conditions you need to address for a dry basement, actual water leak, and condensation. Water leak is a quite obvious issue to homeowners but many are unaware of the issues that high humidity can cause to an ended up basement.

Humidity Issues

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 results in higher humidity. Everything permeable in your basement will soak up the extra wetness in the air and cause a foul odor. Dehumidifiers are appliances which mechanically get rid of the unwanted extra humidity from your basement. An excellent dehumidifier is a need to if you plan on redesigning your basement. Even a basement that does not leakage will benefit from using a dehumidifier.

Water Leak

Without doubt, water leak into the basement need to be permanently fixed before you start your renovation project. Start by remedying obvious sources of the problem; broken or non-existent rain gutters, downspouts emptying next to the foundation, ground outside sloping toward the house, exposed underground windows, etc
. After you tire all preventative steps outside, try to identify areas inside where you are experiencing the leak. If a corner of the basement seems to be a specific problem, once again, look outside at your rain gutter downspouts. If you see fractures in the walls leaking, a few of these can be fixed with hydraulic cement or crack injection. If water seems to be coming in from a separated area, installing a sump pump listed below floor level can decrease the water table and underground hydrostatic pressure in that area. If you are not sure or your issues appear to be widespread, it might be best to call in a structure inspector, engineer or other professional to help you identify and solve your problem. There are a range of services available to solve your leak issues. These consist of; outside excavating, re-parging your walls, interior or outside drainage systems, interior cove systems, grout or epoxy injection and others. Most of these choices will need a professional.

Basement Renovation Starts

remodelling Double BayIf you can spare the extra space, 2X6s are even much better because they permit space for more insulation. Never, under any scenarios, nail furring strips onto the walls. Permeating the foundation will compromise its barrier versus water.
Usage building adhesive rather than nails or screws to adhere your bottom wall plate to the floor. It’s ok to nail the upper wall plates into the upper floor joists.
Don’t glue down your basement carpet. Carpet is something that is going to break and ultimately need to be replaced. Glued down carpets develops a real problem later on when attempting to eliminate it. Tell your carpet installer to utilize building adhesive to set up the carpet tack strips around the perimeter. Do not permit them to drive nails into the cement floor.


With some good sense, building strategy, a trustworthy waterproofing system, and humidity control, and a great waterproofing company like Jacks Waterproofing NSW, you can delight in a lot of extra living space by redesigning your basement in Double Bay.

Call Us Now

0432 334 355