Gasonic · London & the South East
A family-run business.
A team you can rely on.
Practical experience, clear communication and a shared commitment to getting the job done properly.
About Gasonic
Personal service.
Professional teamwork.
Gasonic brings together domestic and commercial gas, heating and plumbing expertise for customers across London and the South East.
Founded by Luke Lewis, an experienced former British Gas technical engineer, our family-run business is built on practical knowledge and trusted customer relationships.
Today, our team supports homeowners, landlords, property managers and businesses. We take time to understand the property, explain the options and coordinate the work, from the first assessment to the handover.
Our approach is simple: thoughtful system design, careful workmanship and clear communication throughout.
Built on practical experience
years of industry experience
- Domestic and commercial expertise
- Gas Safe registered engineers
- Fully insured work
- Support from assessment to aftercare
What you can expect
Shared standards.
At every stage.
Clear communication
We explain what your system needs, agree the work and keep you informed as it progresses.
Practical problem-solving
We consider the whole system and the way your property is used, so the work suits your needs.
Care in the details
From installation to testing and handover, our team takes pride in work completed properly.
For homes and businesses
One team.
A broad range of expertise.
Our work spans boiler installations, planned maintenance, fault diagnosis, water systems and heating controls. That mix of experience helps us support both everyday requirements and more complex projects.
See our workWorking across the region
We serve London and the South East, with project experience including Northfleet, Gravesend and Sidcup.
Tell us your postcode and what you need. We’ll discuss coverage, access and a suitable next step.
Contact our teamLet’s talk about your next project.
From a boiler service to a complete plant room upgrade, talk to our team.