The survey asks thousands of combi, system and heat-only boiler owners how satisfied they are with their current appliance and whether they’ve suffered any faults or breakdowns. They also asked heating engineers to gauge their thoughts on each manufacturer, including how well the boilers are built, how easy they are to repair, service, and the availability of spare parts.
The Which? recommendation provides reassurance to homeowners seeking dependable gas boiler solutions. It confirms that Vaillant’s products are designed with quality craftsmanship, tested for longevity, and supported by high levels of customer satisfaction. The endorsement reflects Vaillant’s ongoing commitment to innovation, industry-leading standards, and customer care.
James Fowler, Marketing, Strategy & Transformation Director at Vaillant, comments: “We are delighted to have not only topped the gas boiler chart this year but to also have secured the Recommended Brand status across the range. Such independent scrutiny is important for heating engineers and consumers to help them make informed decisions as they work with or invest in a new gas boiler.
“Vaillant is continually listening to heating professionals to take on board views and feedback. It is great to see that areas such as ease of install, our high-quality components and spare part availability have been strongly recognised by the trade. And the extremely low level of faults also reported by consumers is testimony to the design and build quality and long-term performance of Vaillant’s gas boiler range.”