Whitebox Heating provides Gas Safe registered heating engineers across West Sussex, East Sussex, and Surrey. From radiator installations and zone valve replacements to full central heating system upgrades and power flushing, we handle all types of heating work to the highest standard.
We install, replace, and rebalance radiators throughout your home. Whether you're adding a towel rail to a new bathroom or replacing a cold, inefficient radiator, we'll get it done right.
Remove sludge and magnetite deposits from your system to restore heat output and protect your boiler. A power flush can make an underperforming system feel almost new again.
We fit and configure Nest, Hive, Drayton Wiser, and other smart thermostats. Upgrading your controls is one of the quickest ways to cut your heating bills.
We replace faulty zone valves, programmers, and motorised valves that affect your heating system's ability to heat different parts of the house independently.
Thermostatic radiator valves (TRVs) that stick or fail can cause cold rooms or overheating. We replace faulty TRVs quickly and cost-effectively.
Planning a home extension or full renovation? We design and install complete central heating systems with the right boiler, cylinder, and distribution to heat your home efficiently.
Describe your heating issue or project. We'll advise over the phone or arrange a visit to survey the work.
We provide a written, fixed-price quote for all planned work. No surprises.
Our qualified engineers complete the work to the highest standard, tidying up as they go.
We test all work fully, balance the system, and make sure everything is performing correctly before we leave.
We provide heating engineer services across West Sussex, East Sussex, and Surrey. Click your area for a location-specific page.
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Any work on gas appliances or pipework must be carried out by a Gas Safe registered engineer. For non-gas heating work (such as fitting radiators to an existing system), any competent plumber can do the work, but we recommend a dedicated heating engineer for system work.
Power flush prices depend on the number of radiators and the condition of the system. We'll assess the system and provide a fixed price before starting. Call us for current rates.
Yes, in many cases we can connect wet underfloor heating to your existing boiler and central heating system. We'll survey the property and advise on the best approach and any required upgrades.
Cold spots at the top of a radiator usually mean trapped air – bleeding the radiator will fix it. Cold spots at the bottom indicate sludge build-up, which requires a power flush or chemical treatment. We can diagnose and resolve both issues.
Yes. We carry out warranty-compliant work in new-build homes and are familiar with the requirements of major housebuilder warranties including NHBC Buildmark.
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Call us now for a free quote or to book a same-day visit.
Need power flushing or heating engineer services in a specific area? Power flushing in Gatwick covers the full RH6 postcode including Lowfield Heath and Charlwood. Heating engineers in Crawley and heating engineers in Horley are also available 7 days a week.
