Concrete Water Tank Leak Repairs


Phone: 0427 427 183

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Contact us  or  Get a Quote

View Our Recent Work HERE and HERE

JOBS COMPLETED - Leaking Concrete Cracks


Farm & Domestic & Commercial Concrete Water Tanks - City Council Fire Water Storage Tanks - Goulburn Valley Water Corp ( Buxton Victoria Town Water Supply Concrete Tank ) - Gippsland Water Corp ( Warragul Waste Water Treatment Plant - Pit Repairs ) - Geelong Galvansing ( Cooling Pit repairs ) - 461 StKilda Rd Apartments, ( Carpark Leak Repairs ). Sewer & Drains, Utilities, Walls, Slab Leaks, Pool's / Spa's, etc



take a look

     Take a look at Some of our Recent Work



Quotes are easy to organise - over the phone or via text or email using photos and measurements


Please take a photo of the whole tank from further back and leaking cracks as well, email or text that information through to This email address is being protected from spambots. You need JavaScript enabled to view it. or 0427 427 183 

Send that information through with your name, full address and contact phone numbers.


Email - This email address is being protected from spambots. You need JavaScript enabled to view it.


Phone - Darren - 0427 427 183


Happy clients that are more than happy to act as a verbal reference for the process and how it works.


VIDEO SHOWING - High Flowing Concrete Water Tank Leak Repair - Using Pressure injection System





Points to consider !


If you have a conrete water tank there are some basic things that shold be done to prolong the service life of these great water storage solutions. Many of the tanks we end up repairing have been let go for many years without the owners considering what is happening to there tank.


Things to focus on are -

1. The overflow pipe on the tank must be piped away from the tank so the water overflowing doesn't sit around the base of the tank. 6 meters away. If the base starts to get undermined due to excess water erosion the tank base can then crack as well. 


2. A water tank where water sits around the base in winter conditions is a recipe for disaster down the track. The base of the tank will subside to the wet side over many years and cracks will then start to appear in your tank when the base moves. Keep the base of your tank dry at all times with the relevant drainage. Spoon drains, etc.


3. Don't plant tree's / shrubs / plants, around the tank, roots will penetrate concrete over time looking for water especially in dry months. We have seen many tanks where the floors have cracked due to tree's roots pushing from underneath. Nothing planted around the tank for 6 meters.


4. The majority of the tanks we repair the cracks will show up on the overflow side of the tank, ( that half of the tank ), this is usually where the base has been wet for many years and movement to that side occurrs.


5. Consider how long water tank cracks have been leaking - some cracks can sit in a paddock and leak for 20 + years, this will then effect the steel reinforcement inside the tank wall and floors weakening the structural strength of the tank. Installtion of steel tank bands is a must in this situation.


6. The earlier you can repair concrete water tank leaks the stronger your tank will be for future years.


NOTE :- If you maintain your tank and repair the leaks now you will get 20 - 30 + years more out of a concrete water tank. Not a bad return on an old water tank that may have already been there for 30 + years, well worth the time and effort.


Repair Your Concrete Water Tank Leaks and save for the future !


Darren Smith

Email - This email address is being protected from spambots. You need JavaScript enabled to view it.

0427 427 183






THE EARLIER YOU REPAIR TANK LEAKS - the more structural integrity your tank will have, you prevent further rusting of the concrete steel reinforcement, saving your tanks Structural Strength ! 50,000 Litres = 50 Tonnes of Water Weight on tank walls.


Crack injection is commonly used in residential and commercial applications primarily because it is far less expensive than emptying tank water, cleaning out the interior of the tank, then drying the inside surfaces out as well as grinding all surfaces smooth. There is also no need to remove tiles and other finishes from the surface in order to fix leaks. Crack injection is the most reliable leaking crack repair system.








Concrete Water Tank Leaking before repairs were carried out January 2017 - Exford, Victoria.



Concrete Water Tank Leaks - having been pressure injected to repair leaks - Polyurethane foaming underway which seals up leaking cracks from the outside of the tank without having to EMPTY tank water. Food Grade Potable Water Rated.



Concrete Water Tank Leaks Repaired - No Water Loss, Flexible, Strong, Durable, External Pressure Injection Sealant.








Jobs Completed -


  1. Injection Leak Sealant - was used to repair a cooling tank at the Geelong Galvanising Plant. The process was carried out on all visible cracks from the inside of the tank reservoir, as you can see from our photos. The cooling tank is used after the steel is removed from the furnace to cool the steel once galvanised. The water temperature inside the tank can be up to 90 oC once steel has been cooled.
  2. Goulburn Valley Water - Buxton Township, Victoria - Buxton's Township Concrete Water Tank Leak Repairs - very bad leak three places, base of tank - leaking 20 litres per minute, leaks were 20mm diameter hole size x 3 qty.
  3. Gippsland Water - Warragul & Traralgon Waste Water Treatment Plant - The pressure injection process is the same process used on Melbourne’s Burnley Tunnel, Desal Plant, Tunnels, Bridges, Drains, Reservoirs in the commercial building industry. Very effective and economical process for repairing concrete water leaks. We specialise in Commercial, Domestic, Rural repairs.
  4. Russell Mack, Water Treatment Technologist, Gippsland Water - 0427 331 586





1. Graham Code ( Boolarra, Gippsland, Victoria) = 0427 656 205

Extremely high flowing concrete tank leak, repaired 14-07-2016.


2. Ian Cocksedge ( Dairy Farmer ) Trafalgar, Victoria = 0402 410 043

Extremely high flowing crack in Dawson Tank, repaired 19-07-2016


3. Gary Sullivan ( Farmer ) Seymour, Victoria = 0475 079 479

Repaired 2014 and then more on the same tank 2016


4. Leo Kuter ( Commercial Building Industry ) Merricks North, Victoria = 0427 350 303

Repair 25,000 gallon tank on property with more than 40 meter of leaking cracks. August 2016


5. Peter Brown ( Home Owner ) Kilmore, Victoria = 0432 908 616 - September 2016


6. Val Brennan ( Farmer ) Greta West ( Glenrowan area ), Victoria = 0417 135 485 - 2013.  


( Please refer to client references Webpage )

We use a pressure injection leak sealant that has been developed over many years, ( 25 + years ), in the Commercial Construction Industry. Proven and Tested in some of the harshest conditions. Strong, Flexible, Durable. Designed to repair leaking cracks without EMPTYING your water.


The Buxton, Victoria, - Town Water Supply Tank, Victoria - leaks repaired were in a tank 4.5 meters high x 14 meters diameter with five very large leak flows almost the size of your wrist in diameter right at the base of the tank as well where pressure is at it's highest, these leaks were repaired exactly the same way as we do all rural and domestic concrete tanks with the crack injection system.









Email - This email address is being protected from spambots. You need JavaScript enabled to view it.

Phone - 0427 427 183



( Sealant is - Food Grade - Potable Water Approved as per the Australian Standards )


Crack Injection is the most effective leaking crack repair method in concrete repair industry. The widespread use of the method of crack injection is a tribute to the inherent versatility of low viscosity sealant injection for leak sealing applications.

What makes it work ?

Crack Injection is a fluid sealant which is injected into concrete cracks, rock fissures, expansion joints and other voids in concrete structures. When used in concrete crack injection applications the sealant is injected into a crack; within minutes the sealant expands transforming from a liquid to a flexible rubber solid. Flexible, Very Strong and Durable being the key, Potable Food Grade Sealant for drinking water, with a extremely high adhesion rating. The sealant will expand and contract with future concrete movement. Concrete is subject to weather conditions and will expand and conctract along with these conditions, very similar to house foundations and brickwork.


The Sealant is attracted to water - making it work amazingly well in situations where there is water actively leaking ( flowing ) out of cracks at a high flow rate. You will be amazed at some of the high pressure leaks we have repaired, ( refer to website for examples ), in water tanks that are full of water


It has a very short cure time, making it ideal for active leak sealing.


  • Extremely low viscosity allowing for even the finest fishers (cracks with a width less than 0.2mm) to be sealed. It will find cracks that you can't physically see !
  • The sealant cures normally whether a foundation crack is wet, actively leaking, or damp.
  • Sealant, once cured, is flexible, allowing for movement in the structure. 
  • Any leak in a concrete structure can be sealed as long as we can get to it.



SAVE Money, Water and Your Time !!


Click here to see Before and After examples of our concrete tank repairs. 


Strong, Flexible, Durable - Long Term Repairs

If your concrete water tank is a poured on site tank ( built on site ) with a tank wall thickness of 70mm or more, we will repair your tank wall leaks without EMPTYING the water from your tank ! Great Savings ! SAVE Money, Water and Time ! Economincal, Strong, Durable, Repair System. Proven Performance, the same system as used on Melbourne's Burnely Tunnel and Many other Commercial Building Projects.


Click here to see Before and After examples of our concrete tank repairs.






REPAIR AND SAVE ON A NEW TANK $$$ - To replace with new add up the additional costs, plumbing of downpipes and pump, new rock base for tank, excavation, machinery hire to demolish existing.

REPAIR AND SAVE $$$ These costs can be in the range of an additional = $7,000 to $10,000 extra.

We travel to you ! - Phone us for a quote - 0427 427 183




Click here to see Before and After examples of our concrete tank repairs.




Maryknoll Before After Tank Repair

Click here to see Before and After examples of our concrete tank repairs.


Click here to read more about concrete tank leak repairs.






Very Happy Clients ! Tank Leaks Repaired without Emptying Water !

We are in a rural area where the only water supply is what we catch from our roof areas.

We have 4 x 7000 gal concrete tanks for storage.Two of the tanks, poured on site more than 30 years
ago, had numerous and extensive cracks all leaking at a disastrous rate.
Many of the cracks were several metres in length, some from top to bottom of the tanks, some radial and some diagonal.

After many attempts at DIY repairs including internal concrete buttressing and paint-on solutions, the tanks were still


2013 - Hello Darren

Just a quick email to thank you for a super professional job on our tank. I was sceptical about your method when everyone else wanted to remove the cover, drain the tank and paint it or put in liners or dig it out of the
slope or otherwise spend many thousands of our money and make us move out of the house for a few weeks (hotel ?). But dealing with you was a pleasure, you did everything you said you would and the results are amazing. There are
no leaks now, the tank seems ver



REPAIR LEAKING CONCRETE WATER TANKS - Yes we can repair leaks without you having to Empty Tank Water !

Leaking Tanks = Rusting Steel Reinforcement = Tank Walls Weakening !


We Travel to You ! Victoria, NSW

WE TRAVEL TO YOU - PHONE US FOR A QUOTE - Victoria, NSW - Areas we have travelled to - Pakenham, Warragul, Traralgon, Sale, Bairnsdale, Orbost, Mallacoota, Eden, Bega, Leongatha, Korumburra, Wonthaggi, Yarram, Foster, Welshpool, Inverloch, Fish Creek, Lang Lang, Koo Wee Rup, Catani, Bayles, Pakenham South, Omeo, Geelong, Colac, Camperdown, Warrnambool, Portland, Hamilton, Mortlake, Inverleigh, Cressy, Halls gap, Horsham, Ararat, Dimboola, Ballarat, Kilmore, Kyneton, Gisborne, Lancefield, Romsey, Daylesford, Castlemaine, Bendigo, Dunolly, St Arnaud, Avoca, Stawell, Maryborough, Wedderburn, Inglewood, Wycheproof, Sea Lake, Ouyen, Mildura, Broken Hill, Robinvale, Swan Hill, Kerang, Echuca, Shepparton, Seymour, Yarrawonga, Wangaratta, Benalla, Euroa, Heathcote, Alexandra, Mansfield, Bright, Albury, Wodonga, Wagga Wagga, Jerilderie, Deniliquin, Balranald, Corryong, Myrtleford, Swanpool, Strathbogie, Taggerty, Marysville, Healesville, Warburton, Hoddles Creek, Seville, Cockatoo, Emerald, Monbulk, Yarra Glen, Toolangi, Flowerdale, Kinglake, Woori Yallock, Noojee, Powelltown, Maffra, Licola, Heyfield, Toongabbie, Walhalla, Tanjil Bren, Willow Grove, Lilydale, Kangaroo Ground, Whittlesea, Wallan, Strath Creek, Heathcote, Elmore, Neerim South, Jindivick and more.