Yes. SEAL Plumbing & Heating is Gas Safe registered, and gas boiler work is carried out by appropriately registered engineers. Gas Safe registration applies specifically to gas work; we also provide separate oil boiler installation, servicing and repair services.

It depends on the fault, the condition and age of the boiler, parts availability and the cost of repair. We assess the appliance first and explain whether a sensible repair is available or whether replacement may offer better long-term value.

Yes. We service both gas and oil boilers. A service checks the condition and operation of the appliance, relevant components and controls, and helps identify signs of wear, faults or maintenance issues before they become larger problems.

Yes. We install replacement oil boilers as well as gas boilers. Oil boiler quotations are prepared individually because the correct appliance, flue arrangement, controls and existing oil heating setup all need to be considered before the work is priced.

A straightforward like-for-like replacement can often be completed within a day, while more involved gas or oil installations, boiler relocations, flue changes or wider heating-system upgrades can take longer. We will explain the expected timescale before work begins.

Not every home needs the same controls. We can assess your existing setup and discuss suitable options, from straightforward thermostats and programmers to smarter controls where appropriate for the boiler and heating system.

Not every heating system needs a power flush, which is why we prefer to assess the condition of the system first. Signs that a system may benefit from cleaning can include radiators with cold areas, poor circulation, dirty system water, uneven heating or recurring sludge-related problems. We use a professional Norstrom Proflush Professional Magmaster power flushing machine with powerful magnetic filtration to help remove sludge and magnetic debris from suitable central-heating systems. If you think your heating system may need a power flush, ask us and we can advise whether it is appropriate for your system.

A magnetic filter is designed to collect magnetic debris circulating in a wet central-heating system. It can help protect the boiler and other heating components from debris circulating around the system, and may form part of the protection measures used with a new boiler installation alongside appropriate system cleaning and water treatment.

Send us an enquiry through the website with a short description of what you need and tell us whether the boiler is gas or oil. For faults, include any useful details such as error codes or symptoms. For replacement or power flushing enquiries, tell us as much as you can about the existing heating system and we can advise on the appropriate next step.