Leaking Balcony

Leaking Balcony Repair

Leaking balcony problems are surprisingly common although they can cause serious danger.
Problems resulting from leaking balconies can be expensive and get worse if left unchecked. Balconies often leak slowly for some time before they are noticed, often causing substantial damage and leading to more serious structural issues for your home. This can be a very dangerous situation that needs to be rectified immediately.

Here are some signs that your balcony may have a leak:
• Cracking in surfaces or grout lines
• Calcification in grout lines
• Lifting of tiles and surfaces
• Water damage to paint or plaster

Causes of leaking balconies

• Building movement
• Incorrect application or failure of the waterproofing membrane
• Poor substrate or structure construction
• Inadequate drainage or poor substrate gradient fall


Repairing a leaking balcony offers several benefits, addressing both practical and aesthetic concerns. Here are some key advantages:

  1. Prevent Structural Damage: Leaks in balconies can lead to water seepage into the underlying structure, causing rot, rust, and weakening of the building materials. Repairing the leak promptly helps prevent costly structural damage.
  2. Extend the Lifespan of the Balcony: Continuous exposure to water can deteriorate balcony materials over time. Repairing leaks and waterproofing the balcony surface can help extend its lifespan, reducing the need for premature replacement.
  3. Protect Indoor Spaces: Water entering through a leaking balcony can damage interior walls, ceilings, and floors. Repairing the leak prevents water intrusion, protecting the integrity of indoor spaces and avoiding potential mold growth.
  4. Preserve Property Value: A well-maintained balcony enhances the overall value and curb appeal of a property. Repairing leaks ensures that the balcony remains structurally sound and aesthetically pleasing, thereby preserving its value.
  5. Prevent Costly Repairs: Ignoring a leaking balcony can lead to more extensive damage over time, necessitating costly repairs or even reconstruction. Repairing the leak promptly helps avoid these expensive repairs down the line.
  6. Improve Energy Efficiency: Water intrusion through leaks can compromise the insulation of a building, leading to energy loss. Repairing leaks helps maintain the energy efficiency of the structure, reducing heating and cooling costs.


We work closely with our suppliers to be at the forefront of waterproofing membrane and product technology, using only the best quality products required for the specified project.


Our WP85sealed Standard Service is ideal if you have a limited budget or just need to give your home a facelift. A GripSeal technician will completely remove all grout from the balcony and replace the product with a new grout( 2part epoxy or cement base waterproofing grout) and seal all the perimeter with a hybrid Pu UV resistant polyurethane sealant in a colour of your choice.

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