Effective and environmentally friendly! Old boilers are less efficient than new ones that’s because they use more fuel to produce the same amount of heat they also breakdown more often than new gas boilers. Our plumbing technicians are ready to help! get in touch with us by calling the number or filling out the form below. Do you have urgent problems with blocked toilets and drains, hot water systems, leaking taps or burst pipes? we can help you with this and much more! Vaillant eco-tec boilers deliver.