
Most of our work is south of the river. Gas Safe registered engineers covering twelve South London boroughs, with the deepest coverage in Greenwich, Bexley and Wimbledon.
South London is where most of our work comes from, and that is not an accident of marketing. It is where our engineers live, where our vans start the day, and where twenty years of jobs have taught us what is behind the walls. A boiler installation in South London is a job we have done in that street before, more often than not.
The region is not one thing, though. The Victorian and Georgian stock of Greenwich, Lewisham and Southwark behaves nothing like the interwar suburbia of Bexley and Bromley, which behaves nothing like the large period houses of Wimbledon, Richmond and Dulwich, which behaves nothing like the post-war estates and new-build blocks along the river. Sizing a boiler correctly means knowing which of those you are standing in. That is the whole argument for using someone local rather than a national installer working off a phone questionnaire.
We cover twelve South London boroughs for boiler installation, servicing and repairs, plus solar, smart thermostats and air conditioning. Greenwich, Bexley and Wimbledon are where we are busiest and have their own pages below, with the local planning constraints and housing stock set out in detail. If your borough is not one of those three, we still cover you, and the same engineers do the work.
Four broad patterns cover most South London property, and they cut across borough boundaries rather than following them.
Greenwich, Lewisham, Southwark, Lambeth and inner Wandsworth. Solid walls, high heat loss, no cavity and very little loft. Frequently in conservation areas, which decides the flue position before anything else does. Routinely under-boilered by installers who size off the appliance already on the wall.
Bexley, Bromley, Sutton, Croydon and outer Merton. Three-bed semis with an airing cupboard cylinder and a loft tank. The classic combi conversion, and the region's most common heating job, subject to a mains flow rate test that takes ten minutes and is skipped far too often.
Wimbledon, Richmond, Dulwich, Blackheath and Beckenham. Multiple bathrooms, high demand, and the properties where fitting a combi because it is cheaper produces a system nobody is happy with. System boiler plus unvented cylinder is usually the correct specification.
Thamesmead, Kidbrooke, the Greenwich Peninsula, Woolwich, Nine Elms and the Croydon towers. A mix of individual boilers, communal heat networks with heat interface units, and older electric heating. Long pipe runs and radiators sized for a much hotter flow temperature than a condensing boiler wants to run at.
The practical arguments, rather than the marketing ones.
Our vans start the day south of the river. For a total loss of heating or hot water in our core boroughs we aim for same-day where the call comes in during the morning. A firm dispatching from the other side of London cannot honestly promise that in traffic, whatever the website says.
Greenwich has 23 conservation areas and Article 4 directions, Merton has 28, Bexley has 16. Whether your flue is legal where you want it is a borough-by-borough question, and getting it wrong means an enforcement notice and a second installation at your cost. We check the designation before we quote.
All of South London is a hard water area. It is why plate heat exchangers fail early, why an unflushed system voids a new boiler's warranty, and why every install we do leaves with a magnetic filter and the correct inhibitor dose. An installer who does not mention water hardness has not thought about how long your boiler will last.
Boiler, solar, battery, smart controls and air conditioning from the same company means one survey and one system design rather than four contractors specifying around each other. It matters most when a boiler replacement and a solar install happen within a year or two of each other, which is increasingly how people are doing it.
Read more about boiler installation across London, or see every area we cover.
Free survey, fixed quote, no call-out fee. If it is urgent, ring us rather than filling in a form.
Same engineers, same fixed-price approach, same part of London.