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What Our Customers Say
“Excellent service, great value for money. Had new boiler fitted last year during pandemic, easy , smooth operation. This year had boiler serviced. Highly recommend George from Thames boilers.”
–Karen Mansfield
“Excellent service very friendly and professional would recommend”
-Mike Phillips
”Thames Boilers have just carried out a boiler replacement for me. They quoted promptly with a competitive rate and carried out the work neatly, thoroughly and efficiently to a high standard of workmanship. Engineer George Lane was courteous, explained in advance what he was doing and when he would do it, cleared everything away and left things in a tidy state. I have no hesitation in recommending Thames Boilers.”
-Jonathan Freegard RIBA
Popular Boilers In Herne Hill, Southwark

Vaillant
Vaillant are one of the most popular boiler makes in the UK. Vaillant were apparently the first company to make a “combi”also known as a “combination” boiler back in the early 60’s. So they’re very well established.
Worcester Bosch
Worcester Bosch are one of the best known boiler makes in the country. If you want a top notch boiler, but still want to “buy British”, then Worcester Bosch boilers are a great choice. However, they are among the more expensive boilers we install.


Viessmann
Viessmann is the best boiler make you’ve never heard of. However, don’t let that stop you considering one. They’re huge in Europe and, like their competitors Vaillant, they’re German and have been established for over 100 years.
Baxi
Baxi Boilers are another well established British boiler make, whose roots go back to Richard Baxendale, an iron founder, who started the Baxendale Company (now Baxi) in 1866, based in Preston in Lancashire. These days, Baxi also makes boilers under the Main and Potterton brands. We recommend Baxi boilers as the least disruptive replacement for some conventional boilers – and their Main brand for people who want to keep costs down.

FAQ​
Generally, if you‘ve one bathroom and also great pressure at your kitchen tap or outside tap, a combi central heating boiler is typically the very best choice for most people.
If you‘ve got more than one bathroom in your home, a conventional, also called a “heat only” central heating boiler (or even a system central heating boiler) with a hot water cylinder would be the most effective choice for you.
No. For existing houses, if you have to replace your central heating boiler from 2035 onwards, you won’t be allowed to put in another gas central heating boiler. According to current government plans, you would have to install a Hydrogen boiler or a heat pump. Nevertheless, if your gas central heating boiler is operating in 2035, you won’t be required to do anything till it needs to be replaced, such as if it’s broken down & irreparable.
It can vary widely depending upon what you need.
But as a rough guide, to take your old central heating boiler out & put a new one in the exact same location ranges from about ₤1800 to ₤3000.
And to strip out an old sort of system with a hot water cylinder {and} put in a combi central heating boiler costs between about ₤3000 to ₤5000.
If you need other work carried out at the same time, such as a power flush, a new gas pipeline, or brand-new radiators, this will add to the estimated price.
If you‘ve only got one bathroom and also great water mains pressure, yes.
If you‘ve got more than one bathroom or bad water mains pressure, then no{, you should look at a conventional boiler or a system boiler}.
Yes. There are numerous types of smart thermostats that can connect to the internet so you can manage your central heating boiler from your phone. Some brands people choose are Nest, Honeywell, Tado, and also Hive.
Yes, we cover the Herne Hill area, in Greater London (Southwark) as well as Ladywell, St Johns, Lewisham, Greenwich, Blackheath, Maze Hill, Kidbrooke, Mottingham, Charlton, Shooters Hill
Why Should You Install A New Gas Boiler? Here Are 6 Good Reasons
1. Reduce Your Gas Bills
Did you know that old fashioned G-rated boilers waste 45pence of every £1 you spend on gas? That’s a huge waste of gas and money. But if you get a new A-rated boiler, only 8-9pence in every pound is wasted. That’s a huge saving that can total up to £570 a year.
2. Save Money On Boiler Breakdowns
3. More powerful showers and faster filling baths
4. Stop running out of hot water
5. Create space
6. Don’t worry about switching the boiler on again.

Greater London (Southwark) Gas Boiler Repairs
We don't just do boiler installations, we also fix boilers, as well a servicing.

Greater London (Southwark) Gas Boiler Replacement
We can give you a free quote to upgrade your boiler. It doesn't matter if you need a simple combi boiler replacement or a whole new central heating system - we can help you!