Monday 2nd June 2025

When it comes to heating solutions, you need products you can depend on… especially when you’re the one installing them. That’s where Glow-worm comes in. Built on more than 90 years of innovation, skill, and a touch of Derbyshire charm, we’ve made it our mission to create quality-engineered heating systems that make your job as an installer easier and your customers happier.

Think we are full of hot air? Here’s a closer look at why Glow-worm is not just another heating brand, but your go-to partner for quality and reliability.

Did you know we’ve been crafting heating solutions since 1934? That’s almost a century of cosy homes, satisfied installers, and top-notch engineering - right in the heart of Derbyshire.

We’ve stayed true to our roots, but that doesn’t mean we haven’t evolved. Since joining the Vaillant Group in 2001, one of Europe’s largest heating appliance manufacturers, we’ve been able to invest in the latest innovations. The result? Quality systems that offer the flexibility to fit a wide variety of homes and budgets.

We’ve got a list and we’re checking it…499 times. Each Glow-worm boiler that leaves our state-of-the-art factory undergoes 499 quality control checks.

We’re confident in our products - and for good reason. From energy efficiency to durability, nothing escapes our watchful eye.

It’s not just about ticking boxes; it’s about ensuring every product meets our remarkably high standards. That’s why we confidently back many of our boilers with up to 10-year guarantees*. Your customers deserve peace of mind, and we make delivering that simple.

Our Energy*, Ultimate*, and Easicom boilers are proudly Made in Britain, ensuring top-tier craftsmanship while supporting local manufacturing.

Built for efficiency and affordability

We know you don’t just need heating systems to work well. You need them to fit well in the home and in budgets, too. That’s why we focus on delivering high-efficiency boilers and accessories that don’t break the bank. Your customers get performance they’ll appreciate, and you gain the confidence that you're installing a system that goes above - and importantly, beyond - expectations for its price.

You’re never working alone when you install a Glow-worm system. Our expert team of over 400 professionals are here to guide you, whether you need on-site advice, technical support, or a quick response to an urgent query.

Here’s the thing - we don’t want to just provide products; we build relationships. From online resources to customer care hotlines, our support system ensures you always have backup when you need it.

At Glow-worm, we have a very important job: to keep the nation warm and happy. And to do that we need to look after you…our beloved installers.

We believe loyalty deserves to be rewarded. Through our Club Energy programme, we give back to installers who choose Glow-worm, including exclusive merchandise, installations guarantees, and even tools to simplify your business operations. You’re not just installing our products - you’re joining a community that values and supports your hard work.

From first-time installs to ongoing support, our goal has always been to keep life simple—for you and your customers.

Whether it’s the British-made craftsmanship of our Energy boilers, the 499 checks that guarantee our products stand the test of time, or the extra-mile service from our Derbyshire team, Glow-worm is the partner you can trust.

*Energy and Ultimate ranges only - terms and conditions apply.