
Which? Best buy award for 6th consecutive year
Published: 22-09-2015
- Greenstar gas range wins Which? Best Buy for 6th consecutive year
- Overall rating of 79%, with maximum score in 5 out of 6 categories.
- Award takes into account engineer’s views for first time
- Oil boiler range also highly recommended
Our entire range of Greenstar gas boilers has once again come out on top in the Which? boiler report, having been awarded Which? Best Buy for the 6th year running.
With the peak heating season just around the corner, our gas boilers continue to be among the best in the market, earning an overall score of 79 percent, based on customers scores and engineers views. Our Greenstar range scored 5 stars for reliability, customer satisfaction and build quality as well as achieving the maximum star rating in 5 of the 6 categories.
The annual survey compared 11 brands in total, revealing us to be the most reliable, with our boilers remaining fault free longer than all other manufacturers. The results were calculated from the views of 10,779 owners and for the first time a 110 Which? Trusted Trader heating engineers were surveyed, with responses included only for brands they were not incentivised to install.
A summary of the report noted that our gas appliances offer: “Fantastic build quality and easy to source parts and spares.” It continues, “[with] extremely reliable products across the range… a Worcester, Bosch Group gas boiler is worthy of its Best Buy status.”
Our range of oil boilers were also rated highly, with one Which? Trusted Trader engineer stating: “They have great build quality, good aftersales support and they’re easy to install.”
For more information on our award-winning Greenstar boiler range, click here.
More News

Helping homeowners find the perfect match between their home and heating system
We’re pleased to announce the launch of our new consumer campaign aimed at guiding UK homeowners to find their perfect heating system and restore heating harmony at home.

£500 Clean Heat Cashback
£500 cashback with every qualifying heat pump installation from 1st April 2025 to 31st March 2026

How to ensure boilers condense - what installers need to know
Martyn Bridges, our Director of External Affairs, discusses best practices for installers to follow when maximising boiler efficiency.