— Our preferred brands
Vaillant boilers — installed by OneHeat
We're proud to install Vaillant boilers across Barnsley, Rotherham, Wakefield and Sheffield. With over 150 years of heating expertise behind them, Vaillant is one of the most trusted names in the industry — and we think they're among the best boilers you can put in a home.
— About
About Vaillant
Vaillant has been manufacturing heating systems since 1874. Their boilers are engineered in Germany and produced in their UK factory in Belper, Derbyshire — meaning you get the precision of German design with local manufacturing know-how. From compact combi boilers for smaller homes to high-output system boilers for larger properties, Vaillant's range covers virtually every household need.
Their ecoTEC and ecoFIT ranges are A-rated for energy efficiency, helping to reduce gas consumption and keep heating bills down. Most models are also Quiet Mark accredited — so you won't hear your boiler working in the background.
— Benefits
Why homeowners choose Vaillant
150+ years of expertise
One of the oldest and most established boiler manufacturers in Europe.
A-rated efficiency
High-efficiency models that reduce energy waste and cut heating bills.
Manufacturer warranty
Backed by strong warranty options for long-term peace of mind.
Quiet operation
Quiet Mark accredited — engineered to run quietly in the background.
Ready to get a Vaillant boiler installed?
Our Gas Safe engineers cover Rotherham, Barnsley, Wakefield and Sheffield. Get in touch for a no-obligation quote.