About Us
Heating Experts You Can Trust
Thermwise is a family-run heating business proudly serving homeowners across North London and the surrounding areas. Built on a foundation of honest workmanship and a passion for getting things right, we set out to offer a local heating service where every customer is treated with the same attention and respect.
Whether you need a new boiler fitted, a repair carried out or simply want your system serviced and checked over, you will always deal with experienced, qualified engineers who take pride in the work they do. We are Gas Safe registered, which means you can be completely confident that all gas work is carried out safely and to the highest professional standard.
Experienced, Qualified and Fully Prepared
Our team of heating engineers brings a high level of hands-on experience to every job. We work with some of the most trusted boiler brands in the industry – including Vaillant, Glow-worm and Worcester Bosch – so that we can recommend the right solution for your home, your budget and your heating needs.
One of the things our customers value most is that we arrive fully prepared. Our vans are stocked with parts and components, meaning the majority of jobs are completed in a single visit. No waiting around for parts to be ordered, no unnecessary second trips – just efficient, professional work carried out properly the first time.
What We Offer
Thermwise provides a comprehensive range of domestic heating and plumbing services for homeowners across our service areas. Our services include:
New boiler fitting
We supply and install energy-efficient boilers tailored to your property, ensuring reliable performance, lower energy bills, and full compliance with current UK standards.
Boiler servicing
Our comprehensive boiler servicing keeps your system running safely and efficiently, helping to prevent faults, extend lifespan, and maintain manufacturer warranties.
Plumbing repairs
From minor leaks to more complex issues, we provide fast and reliable plumbing repairs to keep your home or business running smoothly with minimal disruption.
Boiler repairs and breakdowns
We offer prompt diagnostics and repairs for all boiler faults and breakdowns, restoring your heating and hot water as quickly and efficiently as possible.
Central heating system installations
We design and install complete central heating systems to suit your property, delivering consistent warmth, improved efficiency, and long-term reliability.
Unvented cylinder fitting and servicing
We install and maintain unvented hot water cylinders, providing strong water pressure and dependable performance while ensuring full safety compliance.
Whether you are looking to replace an ageing boiler, upgrade your central heating system or keep your existing setup in peak condition, we have the experience and the right equipment to help.
