Balcony Repairs Melbourne

Balcony Updates / Renewals

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    Waterproofing failure or absence of waterproofing is the main cause of 95% of balcony leaks. As your balcony repair company of choice, Cornerstone Property Group provides peace of mind with a 7-year Guarantee on waterproofing and over 30 years of combined experience in balcony renewals.

    Cornerstone Property Group focuses on long-term solutions when it comes to leaking balcony repairs. Our experienced balcony repair specialists see to it thoroughly. Balcony renovations (balcony renewals) involve stripping out the existing balcony and rebuilding it to Australian Standards. We will always highly recommend an independent leak detection from qualified and reputable companies first. They specialise in clearly identifying the cause of leaks so that we can address and fix the source of the problem. Although we can complete a renewal without one, it’s like buying a house without getting a building inspection first. Balconies can leak due to deterioration from age and weather, inadequate drainage and plumbing, faulty design, water ingress points, lack of waterproofing or insufficient maintenance. Identifying the cause or causes of balcony leaks is crucial to resolving the problem and prevent recurring leaks.

    The Need for Balcony Maintenance

    You might be surprised to learn that balconies require regular maintenance. After all, they are exposed to the elements. Check water is running to drainage points and is not pooling and clear any blockages. Regularly check tiles and grout for decay, efflorescence, and damage. Timber or composite deck tiles and synthetic grass can trap moisture and dirt underneath and cause damage. Check balustrade fixings haven’t rusted and are secure. Regular balcony checks should be conducted annually to prolong the life and enjoyment of your balcony so you can reap the benefits of having one including:

    For exercise. A balcony is your go-to place if you’re feeling too lazy to go to the gym. It’s perfect for calisthenics, yoga, aerobics, and other cardio activities. Plus, you get to enjoy the sunlight and feel refreshed afterwards.

    For ambient lighting. Natural light coming from the balcony illuminates your interiors in a great way that encourages productivity and maintains that fresh feeling in your home.

    For work. Working from home has never been more encouraging, thanks to your balcony. You can set up a table on the balcony, with hot coffee or tea, and work away to meet your deadlines while taking advantage of your natural surroundings.

    Of course, your balcony can also be a place for you and your friends to party! The benefits of having one in your home mean you really must pay attention to any repairs your balcony needs.

    Benefits of Using Cornerstone Property Group

    • Certified Waterproofing to Australian Standards
    • Repairs to resultant damaged areas (ceiling below, walls etc)
    • Servicing apartments, homes & townhouses; concrete or timber subfloors
    • Quality and trusted slip rated Tiles, Glues, Grouts and Sealants
    • Modern Decking options – composite or natural
    • Traditional tiled balconies or Pod systems

    Our Key considerations for balcony repairs:

    • Cause identification – deterioration, inadequate drainage, water ingress or lack of waterproofing
    • Plan of Action – Replace or Repair
    • Waterproof Membrane to Australian Standard
    • Slip Rated Porcelain tile or suitable decking replacement
    • Identification of any subsequent repairs from damaged balcony

    For reliable balcony repairs Melbourne property owners trust, Cornerstone Property Group is just a call away!


    How much does a leaking balcony cost to fix?

    If your balcony is leaking to a room downstairs or even worse a neighbour, the most likely cause is failure of the waterproofing membrane (or in cases the absence altogether). If you’re lucky, it could be something else however this is very unlikely.

    The very first step is to arrange a specialist leak detection company to ascertain what the cause is and verify it. Do not engage a plumber to do this unless they are specialist leak detectors as they are not specialists in this area. We can recommend a few leak detection companies who are great at what they do and provide comprehensive detailed reports. A few hundred dollars for a leak detection can save you thousands. You don’t want to complete a full balcony renewal when you don’t need to.

    Once the leak detection report confirms waterproofing failure you have a few options. At Cornerstone Property Group we only recommend and conduct full balcony renewals to ensure the issue won’t happen again and the job is done properly. We don’t do patch or repair jobs as these never address the root cause and can lead to bigger problems down the track.

    Option 1 – Full renewal of balcony (recommended) from $15,000 for a small balcony

    This involves removing all the tiles and waterproofing back to the concrete slab or in the case of timber sub-floors the flooring right back to the timber floor joists. The area is then re-sheeted in external grade sheet flooring, waterproofed in accordance with AS4654, tiled and grouted (we always recommend epoxy grout for added waterproofing). If it is on a slab the slab is prepared and then waterproofed in accordance with AS4654, screeded (to generate the required drainage falls) and then waterproofed again in accordance with AS4654, tiled and grouted.

    Option 2 – Epoxy Grout

    Sometimes if the grout has decayed (common issue as budlings move and grout is cement based) this lets water in under the tiles and thus leaking below. But remember and be aware! The job of your waterproofing membrane is to stop the above, so if someone says the leak is because of the grout decay they are correct to a degree and you should ask “but if that is the case shouldn’t the waterproofing membrane prevent the water from leaking below” as the answer is YES! You can remove the grout and then re-grout the balcony with an Epoxy grout (a lot of companies will recommend this, you may have heard some on the radio or TV, we DON’T). Epoxy grout is an impermeable product and is waterproof in itself (won’t stain, discolour and let any water in and is also elastic meaning it can withstand some building movement whereas normal cementitious grout can’t). The major reason why we don’t recommend this is because it’s not addressing the root cause (that the membrane has still failed) and you can’t possibly dry out the sub-floor of water, so what is happening in your ceiling? This is going to decay timber members rotting them until you have structural problems (big cost). Your plaster ceiling is going to go mouldy, need replacing and create Health hazards!

    The above is why we don’t recommend this. We understand some customers can’t afford to do a full renewal right now and this should only be used as a short-term fix until you can afford to do it properly.

    The above will set you back anywhere from $2,500+.

    Option 3 – UV Resistant Membrane

    Similarly to the above and only for a temporary fix until the job can be done properly, an expert can prepare and waterproof over the top of the existing tiles to prevent further leaks. This would be slightly cheaper than the epoxy option however it will look ugly and it is not recommended to put furniture on it, foot traffic will be fine.

    We service the below locations and many more!



      Don’t just take our
      word for it

      We are driven to exceed our customers’ expectations and value their feedback to ensure we are delivering the best results.


      I want vehemently to acclaim the work and character and courtesy of Steve Kavatziklis, along with this painter Hussain.   Across a pretty challenging (nit-picking) process of getting our apartment just right, Steve has constantly been courteous, patient, and professional; and his work output has been exceptional.
      You, the management of Cornerstone, have a treasure in Steve K.   Feel free to publish this acclaim of Steve K, wherever you wish; he deserves it.



      IRVA have used the services of Cornerstone Property Group for many of my clients when Preparing a Property to sell. Covering many areas including Painting, Tiling and Renovations, I can rely on their attention to detail and their efficiency to meet the clients needs and deadlines. I would highly recommend their services for anyone looking for a one stop shop.



      I approached Cornerstone after a few rejections from other water proofing companies which refused work for my balcony issue I was facing with one of my managements. I am so grateful to have contacted them and they accepted the challenge. They were professional, knowledgeable & also a responsible team that always kept me in the loop. I appreciate and trust their service and I will recommend them to all my property owners.



      Absolute professionals with great customer service!



      Cornerstone are very professional and efficient with there quoting. Great quality work.



      Cornerstone are really prompt and a lovely team to deal with. It is a company you can rely on.



      My bathroom renovation was completed to a very high standard, on time and within budget. I love it. I 100% recommend the friendly and efficient team at Cornerstone Property Group, thanks guys.



      I want to thank Dan, Narelle, Steve and the team at Cornerstone Property Group for guiding this first-time renovator through a bathroom and toilet renovation. Right from the first quote the communication and customer service have been excellent. They understood exactly what I was after, and the renovation was done on time and within budget – 2 weeks from start to finish!! I would highly recommend Cornerstone Property Group.


      Ross, Richmond VIC

      Cornerstone were very professional with great tradies & everything on time. I would recommend them without hesitation.

      Ross, Richmond VIC



      A big Thank you to Michael, Chris, Paul, Sayed and Corey for completing the balcony in the timeframe. They were all extremely professional and the quality of work is great. I would highly recommend.



      Bill, Middle Park VIC

      A quick note to thank you for the way you have dealt with us, and the professional manner in which Cornerstone carried out our recent renovation. We are very happy with the of the high standard of workmanship, and excellent quality of the finished renovation.

      Bill, Middle Park VIC


      Fiona – Blackburn VIC

      If I could give 10 Stars I would!
      We all know what it’s like dealing with trades sometimes right? We’ll think again. From beginning to end dealing with Cornerstone Property Group is a different experience, throughout our bathroom renovation they were easy to deal with, responsive, organised and trustworthy. And of course great quality work!

      Fiona - Blackburn VIC

      Bathroom Renovation 28/10/2022