Boiler installation & upgrades
A well-planned heating system starts with the right appliance for your home and hot water needs.
- Advice on boiler and system options
- Replacement boilers and system upgrades
- Commissioning and handover
Gasonic · London & the South East
Expert care for your
home’s heating.
Boiler installation, servicing, repairs and plumbing for homeowners and landlords across London and the South East.
domestic services
From everyday care
to complete installations.
Boiler servicing
Planned servicing helps you look after your boiler and identify issues that need attention.
- Manufacturer-recommended servicing procedures
- Appliance safety and performance checks
- Service records and practical advice
Boiler repairs
When heating or hot water stops working, our team can investigate the fault and explain your options.
- Boiler and heating system fault diagnosis
- Clear advice before repairs proceed
- Quality replacement components
Powerflushing & system cleaning
Sludge and debris can restrict circulation. We assess the system and recommend suitable cleaning work.
- Heating system assessment
- Removal of accumulated sludge and debris
- Support for better heat distribution
Smart heating controls
Make your heating easier to manage with controls suited to your home, routine and existing system.
- Smart thermostat installation
- Heating zones and system integration
- Help understanding your new controls
Landlord gas safety checks
We help landlords arrange gas safety inspections and keep clear records for their properties.
- Domestic gas safety inspections
- Landlord gas safety records
- Advice on any remedial work identified
Your questions, answered.
Can you advise on a replacement boiler?
Yes. We assess the property, heating system and hot water demand before recommending suitable options.
Do you install smart controls?
Yes. Our team can discuss compatible smart thermostats and zoning options, and explain how to use the completed installation.
Can landlords book a gas safety inspection?
Yes. Contact our team with the property postcode, appliance details and your preferred timing to arrange an inspection.
Our work in practice
One home. More control.
A redesigned heating system with four zones, smart controls and two hot water cylinders.
Explore the project
Let’s talk about your next project.
From a boiler service to a complete plant room upgrade, talk to our team.