Staying in the same place
The new boiler goes back where the old one was, on a flue route that already meets the requirements. Simpler and quicker than the age of the housing suggests — and nothing needs reconsidering.
Chiswick is period housing almost throughout, and the practical side is more reassuring than most people expect. Nearly every boiler we replace goes back in the same position, on a flue route that's already compliant — so the first question is usually whether it needs to move at all.
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Chiswick, across W4, is largely period housing — Victorian and Edwardian terraces, the leafy streets of Bedford Park, mansion flats towards the river, and a good many houses since divided into flats.
The practical reality of working on it is more reassuring than people expect.
London's very hard water means limescale is a constant background problem on domestic-hot-water plate heat exchangers, cylinders and tap valves across W4.
What people call us about here
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We cover a range of domestic boiler, heating, plumbing and Gas Safe work in Chiswick. Choose the service you need below or contact us with your postcode and we’ll confirm the best route.
The first question on a Chiswick quote is usually not 'what will the council allow' but 'does this boiler need to move at all' — and most of the time the honest answer is no.
The new boiler goes back where the old one was, on a flue route that already meets the requirements. Simpler and quicker than the age of the housing suggests — and nothing needs reconsidering.
A kitchen refit, a conversion, a cylinder coming out. Now the flue, the pipe runs and the access all have to be looked at together — the conversation worth having at survey, not after a boiler is ordered.
A cheap chemical flush is not the same as a powerflush.
Older housing tends to mean older heating systems, and on those we see a lot of sludge — the black magnetite that forms as a sealed heating circuit corrodes internally. It settles in radiators as cold spots at the bottom, jams diverter valves, clogs circulating pumps and restricts the heat exchanger.
We've been called to systems that were flushed by a large firm and were still visibly sludged. So we check the system water and the filter before recommending which one a system actually needs — rather than selling a flush to every cold radiator.
Every year once the heating goes off, larger houses report the radiators warming when someone runs the hot tap. It's usually the diverter valve, failing quietly for months. Summer is the cheapest time to deal with it, not the least important.
An annual service does two things in a period property, and only one of them is about the boiler itself.
It keeps the appliance running to the manufacturer's schedule — and manufacturers commonly make servicing a condition of the guarantee, with the exact requirement set by your manufacturer rather than by us.
We check the system water and the magnetic filter on both of our service types, because in older Chiswick housing that is where the expensive problems announce themselves early — a filter loading up quickly tells you something a visual glance never will. Worth being clear on where the line sits, though: testing or topping up the corrosion inhibitor is separate work, not something a service automatically includes. If what we see points that way we will say so and explain what it involves, rather than quietly adding it.
WHAT A SERVICE COVERS
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Customers in Chiswick often contact us for both planned and urgent work, from annual boiler servicing and heating faults to plumbing repairs, landlord gas safety checks and Gas Safe appliance installation.
Common enquiries in Chiswick include boiler servicing for family homes, heating faults and radiator problems, boiler replacement advice, as well as everyday plumbing and Gas Safe work.
We help diagnose boiler faults, pressure issues, controls problems and heating system faults that leave the property cold or without hot water.
Leaking boilers, error codes and repeated lockouts are checked safely, with repair options explained before parts are fitted.
Planned servicing helps keep boilers safe, efficient and ready for regular use, especially before colder months.
We handle everyday plumbing issues such as dripping taps, running toilets, failed valves, stopcock problems and small pipework leaks.
We help landlords and agents arrange CP12 checks, boiler servicing and clear records for rented homes.
Clear answers for homeowners, landlords and tenants across West and North West London.
Ask on WhatsAppYes, across W4 — including Bedford Park, Grove Park, Strand-on-the-Green and the streets around Chiswick High Road. If your postcode sits on the boundary with Acton or Hammersmith, send it over and we will confirm before you book anything, so you are not left guessing.
Usually less than people fear. Most replacements go back in the same position, reusing a flue route that already meets the requirements. It is moving a boiler to a new location that adds work, because the flue, the pipework and the access all have to be reconsidered. We confirm which applies at the free survey.
Often limescale. West London's water is hard, and scale builds where fresh mains water is heated — including the plate heat exchanger inside a combi, whose narrow channels it gradually restricts. It is a hot-water-side problem and needs different treatment from heating circuit sludge.
Yes. Converted flats and mansion flats are both common here, and each usually means limited cupboard space and pipework routed around the conversion rather than planned for the system. We survey before quoting so the price reflects the actual property rather than a generic assumption.
Yes, where availability allows. We prioritise urgent boiler issues such as no heating, no hot water, leaking boilers, lockouts, fault codes and pressure problems. Call us with your postcode and we will confirm availability.
Yes. We help with everyday plumbing issues such as leaking taps, running toilets, faulty stopcocks, leaking valves, pipework repairs, outside taps and urgent plumbing problems.
Yes. We provide Gas Safe cooker and hob installation in Chiswick, including like-for-like replacements, gas cooker connections, gas hob fitting and safety checks where the installation is suitable.
Nearby areas include Hammersmith, Acton, Ealing, Fulham, Kensington and Shepherd’s Bush. Send us your postcode and the service you need, and we will confirm whether we can help before you book.
Gas, boiler and heating work needs to be handled properly. The Happy Heating Co is Gas Safe registered and fully insured, with clear communication from enquiry through to completion.
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Send your postcode, the service you need and a short description of the issue.
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We’ll check your location, ask for any useful details and confirm availability.
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Where possible, we diagnose, repair, service, install or make the issue safe on the visit.
We also cover nearby areas for boiler, heating, plumbing and Gas Safe services. Choose a nearby location below or send us your postcode and we’ll confirm availability before you book.
From boiler servicing in Chiswick to plumbing repairs, heating faults and landlord gas safety checks across West London, customers choose us because we’re friendly, tidy, reliable and easy to deal with.