Why are my radiators cold at the bottom?

Cold spots at the bottom of radiators are a classic sign of heating system sludge - a common problem in older West Midlands properties. **What Causes Sludge:** - Rust and debris from aging pipework and radiators - Poor water treatment over many years - Mixing different types of inhibitor chemicals - Lack of regular system maintenance **Symptoms You'll Notice:** - Radiators hot at top, lukewarm or cold at bottom - Some radiators not heating at all - Boiler cycling on/off more frequently - Higher gas bills despite same usage - Gurgling noises from radiators or pipes **DIY Checks:** 1. Feel each radiator from top to bottom when heating is on 2. Note which rooms are most affected 3. Check if the problem is getting worse over time **Professional Solutions:** - **Powerflush** - High-pressure cleaning to remove sludge and debris - **System Filter Installation** - Prevents future sludge buildup - **Chemical Inhibitor** - Protects against corrosion - **Radiator Replacement** - If radiators are too badly affected **Prevention:** - Annual boiler service with system check - Magnetic filter installation - Regular inhibitor top-ups - Address leaks promptly A powerflush typically takes 4-6 hours and can dramatically improve heating efficiency. Our Cannock and Stafford engineers use professional Kamco equipment for thorough cleaning.