Banging noises in steam pipes are usually caused by the expansion and contraction of the pipes as they heat up and cool down. This can be due to a variety of factors, such as improper installation, air trapped in the pipes, or a malfunctioning steam trap. If left unchecked, these noises can lead to damage to the pipes and other components of the heating system. To prevent further damage, it is important to have a professional HVAC technician inspect and repair the system as soon as possible. At HVAC Alliance Expert, our specialists are trained to handle any heating system issue, from steam pipe repair to thermostat replacement. Contact us today for all your HVAC and AC service needs.