Energy efficiency upgrades such as insulation systems, heat pumps and ventilation installations are intended to improve the performance of homes. However, some homeowners experience problems when work is poorly carried out or incorrectly installed.

Faulty installations may lead to issues such as damp, mould, heating problems or structural defects. When this happens, homeowners may need to raise a complaint with the installer or the organisation responsible for the upgrade scheme.

Understanding how to report faulty work can help ensure that problems are properly investigated and corrected.

Common Problems After Energy Upgrade Work

Complaints often arise when retrofit projects create unexpected issues within the property.

Typical problems include:

• damp appearing after insulation work
• heating systems not performing properly
• ventilation systems failing to control condensation
• render or insulation systems becoming damaged
• structural elements affected by poor installation

These issues may appear soon after installation or develop gradually over time.

Steps to Take When Problems Appear

Homeowners experiencing problems should begin by documenting the issue carefully.

Recommended steps include:

• taking photographs of visible defects
• recording when the problem first appeared
• keeping copies of installation documents
• contacting the installer to report the issue

Providing clear information can help ensure the problem is investigated properly.

Raising a Formal Complaint

If the installer does not resolve the issue, homeowners may need to raise a formal complaint through the relevant organisation or warranty provider associated with the installation scheme.

Many retrofit projects include warranties or guarantee schemes designed to address defects in installation work.

These organisations may arrange inspections or repairs if the work is found to be defective.

When Professional Advice May Be Needed

In some situations homeowners may seek independent advice from building professionals such as surveyors or building inspectors.

These professionals can assess the installation and provide reports identifying whether the work has been carried out correctly.

This information can help support complaints and ensure appropriate repairs are carried out.