If there is one problem that convinces homeowners to call a professional, it’s when the pressure gauge on the boiler passes the red line we can fix your pressure problems before they lead to system failure the cause may be as simple as excess air in your boiler lines one of our technicians can assess the danger posed by your unit and make the correct adjustments so you can safely heat your home. If you use ad-blocking software, it may require you to allow javascript from hollandandbarrett.com.