How To Fix Conservatory Subsidence


Conservatories are a wonderful addition to any home, providing an extra space to enjoy natural light and the beauty of your surroundings. However, over time, they can experience subsidence, which can lead to issues such as cracks, sticking doors, and uneven floors. If you notice any of these signs, it’s important to address them promptly to prevent further damage. In this article, we will discuss how to fix conservatory subsidence in easy-to-understand language.

Identifying the Issue

The first step in fixing conservatory subsidence is to properly identify the issue. Subsidence can occur due to a range of factors, including soil movement, inadequate foundations, or water leakage. If you notice any of the following signs, it’s likely that subsidence is the culprit:

  • Cracks in the walls or floor
  • Sticking doors and windows
  • Uneven or sloping floors
  • Gaps between the conservatory and the main property

If you observe any of these symptoms, it’s important to address the issue promptly to avoid further damage.

Consulting with a Professional

Once you’ve identified the signs of conservatory subsidence, it is highly recommended to consult with a professional. They will have the necessary expertise to assess the extent of the subsidence and determine the best course of action. A structural engineer or a specialist conservatory repair company can provide valuable insights and guidance for fixing the issue.

Repair Options

The repair options for conservatory subsidence will depend on the severity and cause of the issue. Here are some common repair methods:

  • Foundation Underpinning: If the subsidence is caused by inadequate foundations, underpinning may be required. This involves strengthening the existing foundations by excavating beneath them and adding additional support. Foundation underpinning should only be carried out by trained professionals.
  • Resin Injection: In cases where subsidence is caused by soil movement or voids beneath the conservatory, resin injection can be an effective solution. This process involves injecting a specialized resin into the affected areas to stabilize the ground and prevent further movement.
  • Re-leveling the Conservatory: If the subsidence has caused the conservatory to become uneven, re-leveling may be necessary. This involves adjusting the supports and foundation to restore the conservatory to its original level position.
  • Repairing Cracks: Once the underlying subsidence issue has been addressed, it’s important to repair any cracks in the walls or floor. This may involve filling the cracks with an appropriate filler and repainting the affected areas.

Preventive Measures

While it’s essential to fix conservatory subsidence once it occurs, taking preventive measures can help minimize the risk of future issues. Here are some tips to help prevent conservatory subsidence:

  • Regular Inspections: Conduct regular inspections of your conservatory to identify any signs of subsidence early on. Look for cracks, uneven floors, or other indicators that may suggest a problem.
  • Maintain Good Drainage: Ensure that the drainage systems around your conservatory are functioning properly. Poor drainage can lead to soil erosion or water leakage, both of which can contribute to subsidence.
  • Avoid Overloading: Be mindful of the weight you place on your conservatory, especially if you plan to use it as an additional storage space. Overloading can cause excessive stress on the structure, potentially leading to subsidence.
  • Choose Quality Materials: When constructing or renovating your conservatory, opt for high-quality materials and hire reputable professionals. Investing in a well-built conservatory from the start can help reduce the risk of future subsidence.


Conservatory subsidence can be a concerning issue for homeowners, but with the right approach, it can be successfully fixed. By identifying the signs, consulting with professionals, and choosing the appropriate repair methods, you can restore the stability and functionality of your conservatory. Additionally, adopting preventive measures will help minimize the risk of subsidence in the future, allowing you to continue enjoying your conservatory for years to come.

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