Renewable Service

System Design

Good designs are incredibly important if you are going to get the highest level of efficiency and pay back from a renewables system. Our expert design service is completely tailored to suit your individual site requirements. Using the latest state of the art CAD technology we provide high quality designs supported by full indemnity cover.

Our expert systems technologies team will also provide planning and on site support for the most unique and challenging of renewables projects.

Straightforward Delivery

Glow-worm will deliver your renewables system anywhere you want, be it direct to site or to your local trade counter where you placed your order. Our standard delivery service is 3 – 5 days from receipt of order, but you can choose a next day or timed delivery if you need things quicker.*

To ensure the site is ready to accept the delivery, we will call when we are 1 hour away from the delivery destination and will arrive with all the correct lifting equipment to ensure that the product is safely transferred to site – life couldn’t be easier.

*Subject to an additional charge

Technical Help

If you are planning or even in the middle of an installation and have a technical question you need answering, simply call our technical help line for a straightforward answer.

Assisted Commissioning*

Service engineers will visit the installation, and support you through the first system commissioning, helping with the final stages and handover of the installation as needed.

*A charge may apply for this service

Full Local Support

Our nationwide sales team provide installers and specifiers with support and partnership from beginning to end.

Nationwide After Sales Service

We are committed to supporting you with technical help and after sales service online, over the telephone and on the road.

Our national network of 230 fully trained engineers based across the UK, each carrying over 1,500 different spare parts in their van, enables us to offer next working day or sooner response and an outstanding 97% first time fix. Our renewable engineers are fully trained on either solar or heat pumps. All our service engineers are Gas Safe registered.


Glow-worm has a network of dedicated approved spare part distributors in over 680 outlets across the UK. Each stockist has been approved by us and commits to hold the majority of Glow-worm spares requirements at any one time; otherwise it’s only a call away! All our approved stockists sell only genuine Glow-worm spare parts. These have been endorsed as meeting the original safety and performance specification of our appliances, giving you the confidence that you’re buying genuine spare parts for the maintenance repair of your customer’s Glow-worm appliance.