Yes. Solar panels are designed to last 20–25 years. If a roof has hidden defects such as leaks, rust, or weak structural areas, installing solar panels without preparation can lead to water ingress, corrosion, and costly panel removal later.
Solar panels can be installed on older roofs only after a professional roof inspection. In many cases, repairs, waterproofing, or reinforcement are required to ensure the roof can safely support the solar system for its full lifespan.
Poor roof preparation can result in leaks around mounting points, accelerated roof deterioration, voided warranties, and expensive future repairs that may require removing the solar panels.
Most roof preparation projects are completed within 5-7 days, depending on the size, type, and condition of the roof. Larger commercial or industrial roofs may require additional time.
Yes. Many solar installers and manufacturers require confirmation that the roof is in good condition before installation. Failing to prepare the roof properly can affect both solar system and waterproofing warranties.
No. HMC Works specialises in preparing the roof before solar installation. We focus on inspections, repairs, waterproofing, and ensuring the roof is fully solar-ready before panels are installed.
We prepare a wide range of roofs including metal roofs, IBR sheeting, tiled roofs, flat roofs, and industrial roofing systems for residential, commercial, and industrial solar installations.
Yes. Solar panel mounting involves roof penetrations, which are a common source of leaks if not sealed correctly. Waterproofing before installation helps prevent water damage and extends the lifespan of the roof.
Yes. HMC Works provides roof preparation services for residential homes, commercial buildings, warehouses, factories, and other industrial facilities across Gauteng.
Roof preparation should always be completed before solar panels are installed. Preparing the roof first prevents damage, delays, and unnecessary costs once the panels are in place.